Cons — Can’t find any.

Executive Summary

Introduction

Jason Wang has been an audiophile since middle school. In university, he invented current mode amplification (CMA). CMA devices are characterized by their crisp and transparent sound. It became his ambition to produce audio products with the best possible sound quality. But nothing can remain the best forever, so we should always keep questioning for better. He made this his lifestyle. Jason combined his two principles to form the company Questyle in 2012. Got it?

Questyle had a huge impact with their first digital analog player QP1R back in 2016. Three of us have purchased one – and it remains our reference to this day. Their flagship dap QPM made it onto our Wall of Excellence as true endgame. And the CMA Twelve DAC/amp also collected very good marks from our team.

The company recently also followed the trend of battery-less dongle DAC/amps. Such dongles are marketed to people who want to play music in high quality on their phones, and who don’t want to have a second device in their pocket.

The current market is flooded with dongles – we covered a few – and it appears to be increasingly difficult for a new release to stick out. The 2021 M12 was Questyle’s first effort in this field. Our two guys in Europe were not…too impressed. That’s probably because of their expectations of the crisp Questyle sound, which the M12 did not deliver. It was unusually warm and soft to their ears.

Spoiler alert, the M15 returns to the strictly neutral sound Questyle made its name with. There are a few more things to say, for example how they did it…let’s start with the physicals.

Specifications

Physicals

In the box are:

• 1 * M15
• 1 * USB-A to USB Type-C cable,
• 1 * Type-C to Type-C cable
• 1 * Instruction manual
• 1 * Warranty card

The body is made of metal with a glass cover on top so that one can see the internals at any time. Sturdy, robust…as good as it gets.

Technology

The Questyle M15 incorporates the ES9281Pro SoC (System on Chip) that comprises an all-in-one DAC and headphone amplifier, which delivers a prefabricated sound so that all such devices sound similar. STOP! This is not the case with the M15.

Questyle engineers have enhanced the output signal by adding two Current Mode Amplification (CMA) SiPs (“System in Package”: each with two independent amplification circuits) to achieve the Questyle sound, which is characterized by ultra low distortion, a very low noise floor and very low output impedance of around 1 ohm. This low-voltage configuration is further meant to minimize power consumption, beneficial for mobile use.

The reason why Questyle did not bypass the SoC’s amp altogether is because that’s virtually impossible. And the reason why they didn’t use a pure DAC chip such as the ES9038 is size – it is simply too big. The ES9281Pro chip also features a USB module. Therefore, size and performance dictated the choice of chip.

The M15 offers both balanced (4.4 mm) and single-ended (3.5 mm) circuits.

Functionality and Operation

What it does

• Works plug and play with Windows, Linux, and OSX computers and Android/iOS devices.
• Plays music though single- ended (3.5 mm) and a more powerful balanced (4.4 mm) circuits.
• Supports almost all music streaming platforms worldwide, including Apple Music, Tidal, QQ Music, among others.
• Fully supports and decodes ALAC, FLAC, MQA, and other lossless formats.
• Features two data status indicators that will illuminate one of the following colors: green (sample rate is 48kHz or less), red (hi-res lossless playback: PCM 88.2kHz~384 kHz, or DSD64~DSD256), magenta (final unfold of an MQA Core stream).

What it does not

• Has no on-board control.
• Needs a lightning adapter to be used with iPhone.

The Questyle M15 does not have an on/off switch. It draws current from the host device and switches itself on, when a headphone of earphone is plugged into one of its two sockets.

Amplification and Power Consumption

The manufacturer’s amplification data are rather cryptic so that I put the Questyle M15 to a practical test. The problem is that balanced cables for full-sized, power hungry cans are hard to come by – to take advantage of the M15’s 4.4 mm balanced circuit, which is much beefier than the single-ended circuit (a generally valid statement).

Running the 300 ohm Sennheiser HD 600 on the (weaker) single-ended output – to my surprise – did not only provide enough power, it also maintained the zing, bite, and clarity experienced with easier to drive earphones.

Then I ordered a balanced cable for the balanced circuit – which worked even better. The M15 has enough power to adequately drive a 300 ohm headphone.

Questyle claims that the M15 has an ultra-low power consumption (which, of course, is relative to performance). I did a quick test with the FNIRSI-FNB48 voltmeter. The M15’s single-ended circuit has about twice the power drain of the “frugal” AudioQuest DragonFly Red, and approximately one third more than the DragonFly Cobalt. Both are designed for low power drain, which comes with compromises in performance.

The Questyle M15 has, however, a much smaller current drain than the much less powerful Hidizs S9 Pro. And it works with iPhone that limited power draw to 100 mA, which shuts out similar dongles such as the Astell & Kern PEE51.

I’d say the M15 is very current efficient, but you’d still better have a decent phone battery.

Sound

The Questyle M15 has a sonic signature owners of Questyle equipment love: essentially neutral with great extension at both ends, unparalleled resolution, clarity, transparency, and crisp dynamics – and all that without ever being strident or aggressive, sterile or analytical (Topping comes to mind as the opposite). Almost like a little class-A amp in your pocket. If you have listened to the QP1R dap or the CMA 12 DAC/amp, you will know what I am talking about.

Spatial reconstruction is excellent in both single-ended and balanced circuits. No compromise has been made for the single-ended circuit, the only difference between the two is power. This is in contrast to some other models that sacrifice headroom in their single-ended circuit such as the EarMen Sparrow.

And that’s all you have to know.

Questyle M15 compared

Questyle had released the $150 M12 a year earlier. In contrast, it features only a 3.5 mm single-ended circuit, and, most importantly, it has a different sound: softer and warmer than the M15 or QP1R dap…which did not quite delight Alberto at the time. The M15 also has a gain switch for driving a larger variety of headphones.

Apogee Groove: is much more powerful, way higher current drain, a very high output impedance of 20 ohm, and it does not run with most phones, not at all with iPhones. Its use with hybrid iems is not recommended by the manufacturer. Sonically, the Groove is more coloured and it drives headphones without the need of balanced cables. The Groove offers the best spatial reconstruction of all dongles I have tested but is limited to single dynamic driver earphones and headphones.

With the Sennheiser HD 600, the Groove delivers more dynamics and a deeper stage than the M15. The differences are, however, not substantial. In summary, the Groove excels in it specialized applicability, but the M15 is more universally deployable.

AudioQuest DragonFly Cobalt is smaller and thus handier on the go, has USB filtering included and sounds a bit smoother and a tad warmer. It has similar imaging and spatial reconstruction qualities. It is less powerful – at a lower power consumption, and therefore more limited in its application. The evaluation of sonic differences relies on personal taste but are on par in terms of overall quality. Both offer stellar sound.

Practical Aspects

Questyle and similar dap manufacturers offer dongle DAC/amps to cover the phone/table/notebook market. A dap has principally a cleaner data and power source than a phone or a computer, as it is designed for playing music only. Computer and phone feature other clocked internals that introduce contaminations (“noise”) to the sound. So you are always better off with a dap, sonically – any USB DAC/amp (“dongle”) is a compromise.

When it comes to dongles, the user has to pick their poison: low current draw (= low power = battery preservation) vs. high power (= better sound quality = battery hog). Both are mutually exclusive.

You obviously need a powerful dongle to operate full-sized cans. Devices optimized for low current draw such as the AudioQuest DragonFlys will be easy on your phone’s battery however not do a satisfactory job on demanding headphones. Clipping will occur which will first be noticed when the bass is getting muddy.

Battery hogs such as Hidizs S9 Pro will do a better job on such headphones but empty your phone in no time. The Apogee Groove will not run with most phones at all. Powerful AND low battery drain does not exist!

There is a fundamental lack of technical understanding by some testers who run full-sized, insensitive cans on battery-preserving dongles, then rate them lowly. This misuse conveys the wrong information on the quality of such devices and distorts the playing field.

Therefore, if you have an old phone, a DragonFly type dongle may be right for you. If you want to run full-sized headphones from your computer, you may favour the Apogee Groove type. The Questyle M15 strikes a good balance between powerful output and current drain. However, despite its advanced power management, it is not a miracle power saver. In the end, you have to factor your intended usage into your buying decision.

Concluding Remarks

The very versatile Questyle M15 dongle is as good as it gets in its category. It is for listeners with very high standards. I will use this one for future iem testing…and submit it for approval to be attached to our Wall of Excellence.

Until next time…keep on listening!

Contact us!

Disclaimer

I received the unit from Questyle Engineering for my analysis. I thank them for that as well as for responsive in answering my questions. You can purchase the M15 at the Questyle Shop.

Our generic standard disclaimer.

The post Questyle M15 Review – Stellar By Starlight appeared first on Audio Reviews.

Cons — Piercing upper midrange needs modification, stock tips useless, ordinary sound (the thumpy bass kills the fun); unimaginative design; pointless tuning filters (only one yields an acceptable sound); not sure whether they are their money’s worth.

Executive Summary

Introduction

Shenzhen company NiceHCK has accompanied this blog before it even existed. Loomis and I first discussed their iems over on Head-Fi – we both treasured the legendary $12 NiceHCK Bro model. One enthusiastic Head-Fier compared the NiceHCK N3 with the Campfire Andromeda (nah…), but Loomis nevertheless added it to his 2019 favourites.

NiceHCK have made themselves a name mainly with budget earbuds and quality earphone cables in all price categories. Their earphones, on the other hand, have been hit and miss, mainly because of poor tuning, but most of them have at least been interesting.

Their recent two midprice models are still in their catalogue at the time of this review: the $119 NX7 Mk3 with 4 BA + 2 DD + 1 piezo with exchangeable screw-on tuning nozzles (and exchangeable faceplates) and the $239 Lofty with their Beryllium-coated dynamic driver. The first had a piezo working against the other drivers and the second was overly ordinarily U-shaped for its price tag.

Their latest NiceHCK M5 sport 4 BA + 1 DD and 3 exchangeable tuning valves, which are actually back vents. We’ve seen this recently in the Hidizs MM2.

Specifications

Physical Things and Usability

In the box are the earpieces with three tuning vents (grey:balanced/red: mid-treble/blue: basshead), screwdriver (!!!), 2 sets of eartips (S/M/L), silver-plated high-purity copper cable, a pleather storage case, and the paperwork.

The shells consist of 3D printed German resin shells with aluminum alloy faceplates added. They are small and ergonomic, with good fit and comfort. Nevertheless is the design somewhat boring and home made to me. Isolation depends on eartips used. It is mediocre with the SpinFit CP145.

The included monster screwdriver is somewhat comical and you have to have a quiet hand not to scratch the faceplates during vent change.

Tonality and Technicalities

The NiceHCK M5 offers 3 different sonic signatures, depending on tuning filter used: super bassy, warm-bright, and neutral-bright. The blue bassy filter yields a horribly vulgar sound and is largely omitted here. The grey “normal” filter creates an ordinary middle-of-the-road sound, and the red “treble” filter introduces harshness by the dialled down bass.

None of these signatures is tolerable to me without further modification: I taped 90% of the nozzle mesh off with 3M micropore tape, as so often with Shenzhen earphones in the past. This reduces the over-energized upper midrange, it rounds the sharp edges to some extent and adds volume to the midrange. Without, the midrange is breathy, thin, and strident.

Grey “normal” Filters

This yields a middle-of-the road sound that could not be more unexciting to the educated ear. Bass is very well extended but thumpy and somewhat fuzzy. It lacks definition and finesse. A bass we know from cheap iems. The thick bass dominates the whole presentation. Wonder what dynamic driver there’s in it.

The bass bleeds into the lower midrange, which is attenuated by the upper midrange energy. The micropore tape does a good job in removing midrange harshness. The M5 sounds smoother in the lower midrange than the modded Rose Qt-9 mk2s, though voices are honky and boxed in.

Lower treble is rolling off in panic and gets re-energized at around 9 kHz. This moves higher notes back and adds some tizziness…

The soundstage is relatively narrow but has good depth. Timbre is just ordinary and a turnoff for the educated listener – particularly at this price. The M5 sounds…cheap.

The other technicalities are ok. Midrange resolution is good, midrange note definition is good, too. Note weight is lean in the midrange. Spatial cues is decent as long as there is not much bass in the music.

Red “neutral” Filters

Reduces bass quantity without improving bass quality. This moves the midrange forward and adds harshness to the image while removing warmth – it becomes overpixelated, like an early-generation digital photo. Notes are very edgy. Bass is now thumpy in the background and anemic, vocals are strident, despite the micropore tape.

But midrange clarity, articulation, and transparency are greatly improved in my perception (but in my perception only), stage widens but becomes shallower. Still, bass and midrange don’t fit together. My ears can handle this sharpness only for a few minutes.

Blue “bassy” Filters

Horribly overdone thumpy bass. Just like your steak dinner drowned in barbecue sauce. Vulgar!

Concluding Remarks

The NiceHCK M5 are no outright bad earphones. They are pleasing to the lesser educated ear and therefore may be a good choice for the novice with well-filled pockets. But the over-energetic upper mids require user modding with micropore tape, and the stock tips are useless.

Of the exchangeable tuning filters, the “normal” ones creates an ordinary sound and the red ones with reduced bass a harsh sound. And the humongous screwdriver for installing them is outright ridiculous.

In summary, the M5 sound “middle of the road” (a rather narrow road that is) but don’t do anything above average nor do they look or feel special. The M5 cannot compete with their peers such as Moondrop KATO. Their tuning, particularly in the midrange, is yesteryear.

I don’t think NiceHCK understand how to market the capitalist part of the world. Just sticking some drivers into a shell while ignoring the competition is not good enough. The M5 are simply nothing special, they lack finesse, are uninspiring, and they are not competitive at $179.

Until next time…keep on listening!

Gallery

The post NiceHCK M5 Review – Ordinary Life appeared first on Audio Reviews.

Cons — Steep app learning curve to take advantage of all features; no storage bag; buttons could be marked better.

Executive Summary

Introduction

I have yet to find another company that has so much customer satisfaction and loyalty as Qudelix. Long before I even thought about the Qudelix-5K , happy customers were all over me inquiring whether I had checked out this device.

And once I finally “gave in” to peer pressure, I learnt that there is probably hardly another company with so much pride in their products, so much detail in optimizing functionality and documentation thereof, and such a responsive and enthusiastic customer service. And yes, I needed their customer service as I didn’t know much about Bluetooth at the time – now I know everything…almost.

Qudelix are an audio-system engineering company that develop and produce affordable high-end audio in the Republic of Korea – which is a high-cost market. It is therefore astonishing that they can offer their gear at attractive prices. They offer the 5K USB DAC, the QX-over earphones to go with the 5K, and the T71 gaming USB DAC.

Key Specifications

Physicals

The environmentally sustainable packaging – a plain cardboard box (dimensions 91 x 55 x 55 mm; QX-Over comes in a box of the same dimensions) – contains the quickstart user manual. In the box are the 5K and two 120 mm cables (USB-C to USB-A and USB-C to USB-C).

The actual Qudelix-5K itself a rectangular plastic box with a metal shirt clip at approximately the size/dimensions of a 9V battery…(52.8 x 26.7 x 15.6 mm including clip – at a weight of 25 g). The enclosure hosts two double multi-function buttons, a USB-C port, and two headphone sockets (3.5 mm single ended and 2.5 mm balanced.

Technology

ES9219C Headphone SoC

The Qudelix-5K DAC/amp deploys a ES9219C Headphone system on chip or “SoC“ [see also ESS specs sheet]. Earlier versions of the 5K hosted the ES9018p SoC until it was discontinued by ESS Technology. Qudelix prefer to refer to the SoC as IC (integrated circuit).

SoC means that the ES90219C is a closed system that incorporates the DAC and headphone amp on the same chip. The sound is therefore pretty much prefabricated and devices with this SoC all sound rather similar. This is in contrast to individual DAC chips (on other devices), which do not tell you anything about sound as it mostly depends on the custom-designed output stages. Qudelix’s added software aims to access all features of the ES90219C.

Bluetooth 5.0

The Qualcomm QCC5124 SoC used is an energy-efficient Bluetooth DAC/amp that supports all the latest audio codecs including the Sony LDAC topping the data transmission rates. The codecs deployed has to match the one used by the source device. The QCC5124 SoC can process both Bluetooth and USB signals. When the Qudelix app is enabled (see below) iOS devices and 5K pair automatically.

In summary, we have two independent SoCs, the QCC5124 and the ES9219C. The incoming Bluetooth signal is decoded but bypasses the Qualcomm’s DAC – and outputs it to the higher-quality external ESS9219C DAC/amp.

Functionality and Operation

Overview

What the 5K does:

• works as wireless receiver supporting all the latest Bluetooth codecs
• as USB DAC/amp, the 5K supports 96 kHz/24 bit USB audio streaming, works with Windows, Mac OS, and Linux – and connects via USB-C to android phones
• functionality and sound can be highly customized via a phone/tablet app or Google Chrome extension
• plays hi res music from my Sony dap via LDAC
• can simultaneously be charged and streamed to from computer while being controlled from phone via Bluetooth
• Bluetooth connects automatically to iPhone (when app is connected)
• sound can be adapted to personal taste with 8 DAC filters
• features graphic and parametric equalizers, including presets for many of the most widespread models
• offers powerful output with two gain levels (1 Vrms and 2 Vrms)
• features a built-in high-sensitivity microphone for phone calls
• automatic firmware update

What it does not:

• decode MQA
• have a display
• come with a protective case

Buttons & App/Chrome Browser Extension

The Qudelix-5K has a two multifunction double-buttons (red and blue if illuminated) that control Bluetooth connectivity, onboard volume, and song transport (start/stop/back/forth). They are not marked (one of them has a ridge for touch recognition…but you have to remember which one it is…it is the blue one).

There is also a free mobile app (Android/iOS) and a Google Chrome browser extension for remotely monitoring and adjusting/changing performance/parameters. Both have the same functionalities. The Qudelix mobile app works over Bluetooth link only. The Qudelix PC Chrome app works over USB link only.

In detail, you can monitor device and system internals such as the kind of connection, Firmware, even warranty. You can power the device off, pair with peripherals, do resets, access the user manual, and get in contact with customer support and the Qudelix discussion forum.

You can monitor the battery including all stats and set charge levels as well as power modes. You can even set the button functionalities including turning on and off the button’s LEDs and enable multi-point pairing if desired. The charger function can be turned off in the app, which is necessary for USB operation with iPhone – as Apple only allows 100 mA current draw (but why would you want to do that?).

You can prioritize USB vs. Bluetooth, further monitor input parameters (bit rate, sample rate, RMS levels etc.), the active Bluetooth codecs/USB DAC functions, and set the microphone functionality. You can adjust volume on both host device and 5K.

And you can adjust the DAC/amp bit selecting output power (1 or 2 VRMS) and output quality (Standard/Performance) as a way to manage battery consumption. You can set the output mode to auto, balanced, single ended (unbalanced), or QX-over (the proprietary iems). You can even swap L and R channels…handy, when testing earphone balance.

Finally, the ESS9219C SoC lets you choose between 8 digital filters (best start with “minimum phase fast/small rolloff”). The QX-over has its own extra tweakability in the app.

Last but not least, there is a choice of parametric and graphic 10-band equalizers with 10 programmable presets. The app also provides access to a user-maintained public database with auto eq presets for all popular earphone models…hundreds of choices.

In summary, the app is a nerd’s paradise. You find a complete operational overview here.

Power Consumption/Battery Life

The Qudelix-5K hosts a 500 mAh lithium polymer battery. At a rate of 200 mAh, it is fully charged in 2.5 hrs. The battery discharge time varies with codec, sample rate, power profile, output mode as well as earphone/headphone sensitivity and output volume level.

Depending on combinations of these factors, battery life is between 6 and 18 hours. Check here for a detailed breakdown.

Amplification

Single-ended and balanced outputs features 80 mW and 240 mW per channel, respectively. Each of the circuits has two modes (or gains). Single ended features 1V_RMS mode for “normal” iems around 32 ohm. 2_VRMS mode drives low-sensitivity iems and headphones.

The balanced circuit offers more powerful 2V_RMS and 4V_RMS modes. All these modes are user selectable.

Full-sized headphones obviously prefer the more powerful balanced circuit, however, balanced cables for them are hard to find – and if so, they are not swappable between headphones, as there is no connection standard. Paradoxically, cables of easier-to-drive iems adhere to two standards (MMCX and 0.78 mm, 2 pin) and balanced cables are readily and cheaply available for them.

In real life, the 5K’s single ended circuit drives my 150 ohm Sennheiser HD 25 with ease, but the 300 ohm Sennheiser HD 600 bring it close to its knees. The balance circuit played any iem thrown at it – and more.

Wrong world!

Sound

The Qudelix-5K is primarily designed as a Bluetooth receiver for on the go. Hence functionality is above audiophile fine tuning. The ES9219C SoC with DAC and amp delivers a prefabricated sonic signature as it is impossible to manipulate the amp part other than through unleashing the functionality via custom software. Therefore, all devices with this SoC will sound similar.

That said the Qudelix-5K features a neutral sound with a tad of warmth added. The big difference between USB and Bluetooth sound is that Bluetooth sacrifices some dynamics and depth.

Extension is decent at both ends, there is nothing scratchy or strident, note weight is very good, note definition is ok. My overall impression is…middle of the road…not the most audiophile but more than workable – and enjoyable. Imaging, resolution, clarity, staging are all good and even great for the price. Headroom with the balanced circuit is excellent.

Considering the ambient sounds one is exposed to on the road, the 5K’s musical presentation is more than adequate and actually quite delightful – even more so when combined with the functionality.

So what do you get in a $250 DAC/amp such as the Questyle M15? First, no Bluetooth…but better midrange clarity, more “zing”, more intimacy, better note definition, a better organized stage…and a bigger battery drain on your phone.

Both kinds of devices clearly serve different purposes. One for the soft sofa at home and the other for the hard seat on the bus.

QX-Over Earphones

The $29 QX-Over earphones are another one of Qudelix’s technical specialties – they only fit the 5K and T71. The iems feature two 8 mm dynamic drivers and utilize the 5K’s active crossover as part of its 4-channel DAC/amp and DSP for optimal sound quality.

The QX-Over therefore features a double plug that is inserted simultaneously into the 2.5 mm and 3.5 mm sockets. Using the stock tips is required to unleash the intended sound signature.

The QX-Over have a safe, V-shaped, slightly warm tuning with a huge headroom and great staging (obviously the result of the proprietary crossover technology). Again, no audiophile delicatesse, but a decent burger fare: an unpretentious souped-up mainstream iem that is optimized for the 5K.

They have tight enough bass with a good sub-bass extension generating a healthy rumble. Vocals are not too recessed, they are a bit on the lean side but still have enough body. There can be the occasional shoutiness. Treble extension is not the greatest and high notes can be a bit subtle.

The OX-Over are quite quirky in terms of dynamics and clarity is also good. Seriously, although quite middle-of-the-road, the QX-Over completely do the job outside of the house (in…errmm..the middle of the road). Even inside: I danced around my kitchen with them while unloading the dishwasher. I definitely recommend this experience as an add-one to the 5K.

Comparison to FiiO BTR5

The $129 FiiO BTR5 features the same ES919C SoC as the 5K, and both presumably sound very similar. Qudelix released a comparison pdf (that is in need of minor updating).

The main differences between the two devices, apart from price, are weight (BTR is much heavier), battery life (5K much better), native resolution (BTR up to 32 bit/384 kHz), and app/Chrome extension (5K much more customizable). Qudelix 5K has a resolution of up to 24 bit/96 kHz (just like the AudioQuest DragonFly Cobalt), which covers 95% of all audio files).

Another huge difference is the customer support. FiiO have never replied to any message of us at audioreviews.org authors whereas Qudelix have a short turnaround time with dedicated support.

Concluding Remarks

The Qudelix-5K is probably one of the most mature products on the market and bears zero risk to the buyer. No wonder it enjoys an excellent customer satisfaction.

One of my personal highlights is that it turned my Sony NW-A55 dap into a balanced player.

Apart from great sound and functionality, the free tweaking/monitoring app is a great teaching medium. Sure, the 5K can’t compete with $300 competitors, but it is still good enough to be used even with premium earphones – and it is simply perfect for use on the road.

Oh, and I highly recommend ordering the QX-Over earphones as add-on.

I am going to recommend the Qudelix-5K for induction to our Wall of Excellence.

Until next time…keep on listening!

Contact us!

Disclaimer

The Qudelix-5K was provided by the company for review upon my request – and the QX-Over showed up as a surprise. And I thank them for that as well as for answering all my questions patiently and in every detail.

You can get the 5K and QX-Over from amazon and directly from Qudelix Store.

Our generic standard disclaimer.

The post Qudelix-5K Bluetooth DAC/amp With QX-Over Earphones Review – Highest Pragmatism appeared first on Audio Reviews.

Cons — Build appears a bit flimsy; no dead cats for the lavalier mics included.

Executive Summary

Introduction

Vlogging, live streaming, and virtual meetings are becoming increasingly important. When two people are looking into the same camera, a microphone for each is needed. The Maono WM820 offers this functionality. The set features two clip-on transmitters with built-in microphone and a receiver connected to your computer, phone, or other broadcasting device.

The clip-ons also offer the option to connect an included lavalier microphone for improved sound quality or simply for convenience – as well as a headset for real-time monitoring. The transmission range of the sound is up to 50 m, but in any case can one move around the house safely without losing contact to the receiver.

The WM820 set looks awfully close to the Røde GO II set, but at less than half the price, appealing to the cost-conscious consumer.

Maono is a high-tech company that produces affordable microphones, audio interfaces, headphones, and other audio accessories. They preferably sell directly to consumers to keep their prices reasonable.

I am a big fan of good sounding microphones and have certain expectations. Spoiler alert, the WM820-A2 deliver, albeit they cannot be compared to radio-station microphones, just to state the obvious.

Specifications

Physicals

The WM820 set comes with all necessary accessories other than OTG adapters for phones. For example, you have to buy an Apple Audio Adapter for use with iPhone.

In the box…is a lot: 2 transmitters, 1 receiver, a charging cable with three USB-C connectors for simultaneous charging of all three units, a 3.5mm TRS Cable (for cameras), a 3.5mm TRRS Cable (for phones), 2 lavalier microphones, 3 dead cats for the transmitters, and the paperwork. And all that comes in a big pouch.

The receiver and the two transmitters feel a bit light and the plastic a bit flimsy, and I would not want to drop them onto a concrete sidewalk (to be fair, the same accounts for my iPhone). But being heavier would make them more difficult to wear around one’s collar. The pouch smells a bit like petroleum and the lavaliers and the other accessories are sturdy.

Functionality and Operation

The principal idea is to assign a “talking head” to each of the two transmitters, and to connect the receiver to a DSLR, smartphone/tablet, or computer so that the two people can have a recorded or streamed conversation with the outside world.

There is a 3.5 mm output jack on the Maono WM820’s receiver for this purpose. The transmitter features a 3.5 mm jack for connecting an external lavalier microphone (which bypasses the internal mic) as well as a 3.5 mm headphone jack for real-time monitoring.

Both receiver and transmitters feature three buttons on the side with various functionality. First, apart from ON/OFF, for Bluetooth pairing by simply holding button combinations down on both. Pairing has a memory: once done, you will not have to do it again. The receiver buttons allow to adjust the 22 dB gain in 2 dB steps of the incoming signal as monitored through a connected headset (also works for the mics).

Transmitters and receivers features a couple of LEDs on their front top, one as battery-level indicator and the other for Bluetooth connection status.

The set can be used indoors and outdoors. The receiver fits any standard camera shoe or phone rig as you see below. The company claims a 6 h battery life, which is more than sufficient. The build-in 350 mAh batteries are charged with a standard 5V USB charger (not included, but any phone charger or computer port will work). Charging time is 2 hours.

The microphones built into the transmitters follow a polar pattern and are (to some extent) omnidirectional with noise cancelling technology. Transmission distance is given as 50 m without physical obstruction such as walls. I tested this in the following video.

Sound Quality

When it comes to spoken word and speech intelligibility, I am fuzzy. First, I love talk radio and own several old-fashioned FM radios. Second, one of my first cousins and one of my nieces are voice actors. When listening to the “big” radio sound, you hear differences depending on the microphones used.

There is always a competition of richness against clarity, and the question is how well extended a voice is towards the top and bottom of the frequency spectrum. A microphone with little upper extension makes the voice sound boxed in and blunt, one without lower extension makes one sound tinny and analytical.

My wife and I tested the transmitters with both the built-in microphone and the added lavalier. According to specs, the lavaliers should yield a richer sound, but listen yourself to the sound of the video below.

So, what do you think? I did not change the default gain or process the sound. You get the raw data, just like somebody in a live stream or zoom call. I find the sound strikes the right balance between richness and clarity. And since you can attach any microphone to the transmitter you want, I also tried my Sony ECM-CS3, which sounded clearer, but also sterile and analytical. The Manao delivers the more natural sound with a bit or warmth added.

Concluding Remarks

The Maono WM820 is a well working and good sounding set…though I see a bit of “copycatting” as it comes optically very close to the Røde GO II (at more than twice the price). It may be a functional lower-priced alternative to the hobbyist like me, but the build is too light for professional use.

And since the company is big on influencers and affiliate programs, a built-in disclaimer: I/we don’t participate in any of that as we are not salesmen on a commission but product analysts. I just tested the set – and without any humour.

Until next time…keep on listening!

Disclaimer

The WM820 was provided unsolicited by Maono and I thank them for that.

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Gallery

The post 2-Person Wireless Mic MAONO WM820 Review – Talking Heads appeared first on Audio Reviews.

Cons — Hard to drive with a phone (very low sensitivity); no bass or sub-bass; no slam; sounds tinny with some tracks; bulky plug in the way of many phone cases.

Executive Summary

Introduction

Koss is a reputable American company with over 60 years of experience that advertise with the slogan: “Hearing is Believing”. Founder John Koss invented the stereo headphone back in 1958. Over the years, Koss have introduced a few perennial favourites such as the 1984 Porta Pro or the 2004 KSC75, which are not only still in production, but they are also still very popular even with demanding audio enthusiasts.

Let’s not forget the 2017 KPH30i, which are sonically a tad behind the Portas/KSC75, but ergonomically ahead of them. We have evaluated these models in the context of the Yaxi earpads. For completeness, Koss also introduced a number of stinkers such as the “Plug”, which plugged my ear canals with undifferentiated noise.

The KPH7 were introduced in 2013, but it is not listed anywhere in Koss’s history. They are small on-ear headphones aiming for the super-budget crowd. Looking similar to the proven Porta Pros and KPH30i, the question is whether they are similarly good performers.

Specifications

Physical Things and Usability

In the box is…hold it…the KPH7 don’t come in a box but in one of these weird see-through thingies you have to cut it out of while ruining your scissors…urghhh…these eco pigs are called “blisters”. And, what you get when the removal operation was successful is…the KPH7 without anything else. What do you expect for $5.49 USD?

Build quality is good. The KPH7 sit on ear, which means they leak music to bystanders. The headband is small and tight and the clamp pressure may not provide the biggest comfort for big heads. Cable and plug are somewhat generic but sturdy. The bulky plug may be in the way of many phone cases.

Tonality and Technicalities

The KPH7’s signature is warm-neutral with the opposite of a bass boost. What? Yes, there is virtually no bass or sub-bass….confirming the frequency range given in the specs: the doors are shut below 80 Hz. To add insult to injury, the very low sensitivity of 91 dB makes these very hard to use with a normal phone. Additional amplification would be beneficial.

What’s left of the bass is quite tight, but any drum kit sounds as if somebody tortured the bottoms of plastic buckets with sticks. There is no rumble at all and no slam or impact either. Nobody at home down there.

This lack of support leaves vocals freestanding, marginally warm, always lean, sometimes tinny, but also provides a lot of space for them: spatial reconstruction is not bad at all. Whilst note weight is not great, note definition is also decent: piano keys, for example, are naturally reproduced. Timbre is as good as in the Porta Pros/KSC75.

Treble, yes, cymbals can be found…somewhere…thin, hesitant, like needles and they sound rather robotic.

Another issue derived from the “basslessness” is the aforementioned lack of kick…the KPH7 are not dynamic at all. Stage is a complete mess as musicians are all over the place. And so is resolution.

To bring this into context, when listening to Paolo Conte’s song “Canneloni”, a lively and bassy piece with a deep voice, the tomato sauce was entirely missing from the meal. Both bassline and voice sounded anemic. A rather bland, dry lunch.

Concluding Remarks

The Koss KPH7 are in now way competition to the KSC75 or Porta Pros. Although they offer decent spatial reconstruction, they lack bass and spice. But a real miss is their very poor sensitivity that makes them hard to drive with a phone. Why would one get extra amplification for a $5.49 headphone?

In summary, the KPH7, if used for music, are more for chilling than anything. They are probably best suited for podcasts and other spoken word performances. As in most cases, you get what you pay for.

Until next time…keep on listening!

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Disclaimer

Co-blogger Biodegraded bought these for me. Thank you very much.

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About my measurements.

The post Koss KPH7 Review – Kinder Surprise appeared first on Audio Reviews.

Cons — Lean notes, lacks kick, shouty and unbalanced; springy cable.

Executive Summary

Introduction

Tripowin is one of Linsoul’s in-house companies. It was established in 2019 – and we rarely had the pleasure to test their products. Linsoul, of course, is a major Shenzen audiogear retailer.

The Léa is a single dynamic-driver earphone aiming to the super-budget crowd whose goal it is to find a cheap iem that punches well “above its weight”. I personally have yet to find such a model, let’s see whether the Léa can convince us.

Specifications

Physical Things and Usability

In the box are the two earpieces, one set of eartips (S/M/L/), a pair of clip-on earhooks, and a cable. The shells ae built very well, the silicone eartips work for my ears, the cable is springy, rubbery, and tangles easily, but it does the job. Everything works out of the box.

Comfort and fit are good for my ears, isolation is average. The Leá are easy to drive with a phone.

Tonality and Technicalities

Leá’s signature is warm-neutral, organic, but notes are lean. It is unbalanced to my ears with lack of bass dynamics and too much of an edge in the mids.

Bass is exceptionally tight and clean right down to the lowest frequencies, although it does not reach very deep into the sub-bass. Slam is lacking. The low end lacks bite and is too polite.

This politeness is turned into the opposite in the midrange. Vocals are lean, and pointy, though overall still reasonably organic. They are attenuated by an over-energized upper midrange and lack weight, though note definition is ok. Call it shouty, there is too much harshness and some body lacking in the mids for my gusto.

The midrange is simply a too edgy and lean. When turning the volume up to reach satisfaction in terms of vocals body, all I get is bleeding eardrums. It is like the torture of Sisyphus as the desired result is never achieved. At low to moderate volumes, the midrange is fine, though.

Treble rolls off way to early. Cymbals are frequently buried and lack substance. They are clean but lack weight.

Stage is relatively narrow and has decent depth and height. Imaging, instrument placement, and separation are surprisingly good. So are clarity and resolution. But bass kick is lacking, painted over and taken hostage by the strident, over-energized mids, which knocks the whole experience out of balance.

In comparison, the $20 Astrotec Vesna sound fuller, wider, and smoother — just way more cohesive. Notes are also much better rounded in the Vesna.

Concluding Remarks

The Leá turn out to be too aggressive in the midrange and too dull at the bottom end for my ears. Some smoothness in the midrange is urgently needed. Technicalities are surprisingly good. They are average iems for listening at low to intermediate volumes in their price category. Build and haptic of the earpieces are excellent, though.

In summary, Leá offers nothing new, sonically. Another one for the lowest drawer in my desk.

Until next time…keep on listening!

The post Tripowin Leá Review – Sisyphus Revisited appeared first on Audio Reviews.

Cons — Deserves a tad more upper midrange and treble extension for a wider stage and more sparkle; not the fastest driver; limited applicability of third-party eartips.

Executive Summary

Introduction

IKKO is a Chinese manufacturer that has initially delighted us with their very few however innovative <$200 earphones (and accessories). Their first iem, the IKKO OH1 stood out by its metallic, unconventional shells with a great haptic. The “masterfully jazzy” well-dosed V-shaped IKKO OH10 made it onto our Wall of Excellence. They excel by their superb imaging and staging – and offer a sniff into the premium segment at a mid-tier price.

The – in contrast to the OH10 – brighter tuned IKKO OH1S is a highly underrated marvel, possibly because many influencers had their listening experience guided by the frequency response graph. The OH2 is physically very similar to the OH2. It appears that IKKO wants to appease those customers with there OH2 who found the OH1S too spicy. Will it work?

IKKO are currently expanding their product range into dongles such as the IKKO Zerda ITM01, microphones (for YouTubers), small speakers, and other desktop accessories.

Specifications

:

Physical Things and Usability

In the box are the earpieces, the cable, a set of IKKO I-Planet foam tips, a set of oval silicone tips, a storage wallet, an IKKO pin, an MMCX tool for safely disconnecting cable and earpieces, and the paperwork.

Just like the OH1S, IKKO OH2’s shells are premium built with mostly aluminum alloy and some resin, and they feature one of the companyʼs trademarks: oval nozzles, which help forming any eartip into the cross-sectional shape of your ear canals.

The shells are rather small and light compared to the OH10, they look and feel great, sit firmly in my ears and are very comfortable. The small size of the earpieces is certainly a huge asset. Isolation is not the greatest for me.

I find the haptic and ergonomics premium: 10/10.

I really like the included cable (same as with OH1S): spindly, wiry, light. Coated with hard pvc, it has the right stiffness for me and is not rubbery at all. Great in the days where cables are increasingly becoming ropes pulling our ears down. Less is more, also in this case.

Tonality and Technicalities

IKKO have tuned the OH2 differently from their other popular models. It is not V-shaped like the OH10 – and it is not as treble extended as the OH1S, although both share the relatively flat frequency response up to 1.5 kHz. As in so many cases, the OH2’s frequency response graph is literally misleading as it leads speculations into the wrong direction.

From a helicopter perspective, the IKKO OH2 is somewhat dry and slightly warm sounding iem. For me, the included IKKO I-Planet foam tips worked best. But foams in combination with my ears always generate a rather dry bass.

And it is rather dry indeed. Sub-bass extension is good, there is plenty of rumble down there, and there is no boomy mid-bass peak. Nevertheless could the bass be tighter – and it probably is with a different tips/ears combination. I’d call the bass typical for mid-price single dynamic-driver iems, but nothing special. It is certainly not the fastest around and can be somewhat blunt in some recordings.

The vocals have very good weight and decent definition, they are not set back, which is an asset at this price tag. There is a small congestion from the hesitant upper midrange (pinna gain is <10 dB) which compresses male and female voices a bit. A tad more energy at around 2 kHz would make them wider and airier. Higher piano and violin notes lack sparkle.

The top rolloff starts already in the upper midrange but becomes dramatic at above 5 kHz. Treble extension is audibly lacking and compromises stage width and overall sparkle/air.

And whilst stage is narrow, it has a good height and depth. Imaging and spatial cues are good and resolution, separation, and layering are average. The OH2’s biggest sonic assets are its note weight and its very natural timbre.

IKKO OH2 Compared

The $79 Hidizs MM2 with their exchangeable out vents are more versatile and may have slightly better imaging and staging (more headroom), but I find the OH2 have a better organic reproduction , note weight, and cohesion. Instant wow effect vs. slowly growing likability! I also prefer the OH2’s smaller earpieces for their small design and premium haptic whereas the light yet bulky MM2 shells are reminiscent of the budget KZ fare. I’d say the OH2 appeal more to the older, mature crowd (like me) and the MM2 preferably to teenagers.

The $79 Moondrop Aria, viewed as the dynamic-driver standard below $100, is much faster, brighter, and leaner than the OH2. It is technically cleaner with a better defined low end, a better extended treble, and more width. But it also has an upper midrange glare that may be unpleasant for some. The OH2 is less analytical, warmer, deeper, but also thicker in its performance, it has more “soul” and is more engaging to me. The Moondrop may be the “better” earphone, but the OH2 is more enjoyable to me.

The main question may be how the OH2 compares to the $159 IKKO OH1S? Well the OH1S may be brighter but they benefit from their treble extension, which results in a wider stage and better imaging. They provide more headroom. They also have better note definition and resolution. I’d say the price difference is justified – and I, quite frankly, prefer the OH1S as they are the better iem.

Concluding Remarks

IKKO iems are totally underrated in the internet’s echo chambers that cultivate herd mentality pushing überhyped yet short-lived products to promote compulsive buying habits. IKKO iems have a long shelf live for a reason.

The IKKO OH2 are the mellow alternative to all these brightish <$100 earphones such as the Moondrop Aria. They impress by their haptic and accessories, which are essentially identical to the OH1S at twice the price. They further have a decent tonality with an intimate midrange and an organic timbre.

The OH2 will appeal to the more mature budget “audiophile”, who cares about substance rather than gimmicks.

To give you my personal perspective: I really like the OH2 a lot – and not only for their sound but also for their handling (the importance of which for daily use is typically undervalued in reviews). But then again, I could say the same about the OH1S and OH10.

Until next time…keep on listening!

The post IKKO OH2 Review – A Purist’s Daydream appeared first on Audio Reviews.

Cons — Stock tips too small for some ear canals.

Executive Summary

Introduction

Another $20 piston-shaped single dynamic-driver iem? Don’t we have enough of these? No fancy faceplate, no detachable cable, no ear hooks? The cool kids have already stopped reading this. But, wait! These are good, so good that even a guy like me who has seen it all uses them. You better read on.

Astrotec’s parent company dedicated to acoustic research was established 20 years ago, the current branding exists since 2011. Their first earbuds and earphones were released in 2012. You may have heard of their Lyra earbuds and the Delphinus series iems. The brand is better known in China were it is regarded as belonging to the 10 best domestic earphone brands.

Vesna is the poetic word for spring in some eastern European countries. And, yes, spring is coming (in Canada) as I write this. So, no coincidence that this earphone is released in…yes you guessed it. Let’s see whether the Vesnas keep what I promise.

Specifications

Physical Things and Usability

In the box are the earphone with fixed cable, a set of eartips (S/M/L), storage bag, a USB-C dongle, and the paperwork. The dongle does not work with any Mac device (iPhone of MacBook) and appears to be designed for Android and Windows devices.

There is also a version with 2-pin detachable cable available, the Vesna EVO version.

The earpieces are well made of “airplane-grade aluminum alloy” and feature a prominent nozzle lip to keep the eartips in place. They feel substantial between my fingers and not budget like. The diaphragm used is Japanese LCP (liquid crystal polymer). The cable is spindly, not rubbery, and without microphonics — and therefore good for me.

The comfort/fit of the cylindrical earpieces is as good as expected, as this shape is not (much) in contact with the concha. Isolation is not great. The 30 Ω Vesna work well with my iPhone SE (1st gen.).

Tonality and Technicalities

The Vesna have a warm, (relatively) rich signature with a realistic attack and an overall surprising sonic quality. Sure, they are still budget earphones but their overall cohesion is pretty good and they are attractive and engaging to my ears/brain.

No, the bass does not dip particularly deep – its merely ok – but it is as tight as my wallet. Not the biggest rumble down there and the slam may a bit on the polite side. No midbass hump, no sub-bass hump. The bass is agile and warm. Best actor in a supporting role. Not bad at all.

Vocals are the big surprise…they are intimate, articulate, have decent note weight and the notes are well defined and rounded, too. Exceptional quality at this price point. Yes, you can turn the music up and the voices remain smooth and are not stabbing you in the chest…or rather eardrums. A huge asset. Typically, budget iems are lean and piercing in the midrange, these are not. Therefore, no shoutiness either. Hurrah!

Treble is non intrusive. Cymbals may sound metallic and energetic, but they still keep some subtlety. Extension into the lower treble is very good but resolution is not the greatest.

Stage is reasonably wide, not very deep, and also not too high. Imaging and spatial cues are outstanding for its class, attack is delightful: no harshness, nimble, very pleasant on my ears. Separation, layering, and resolution are also very good for the class. I would like to repeat: note weight and note definition both stick out. Timbre is also great: everything sounds natural.

Looking back, the combination of a warm signature, a speedy, non-syrupy bass, and smooth, silky vocals creates an overall very pleasant listening experience for me.

Astrotec Vesna Compared

The Vesna is the best <$30 iem I have heard in a long time – and they may be a valid successor to the discontinued Moondrop Crescent. The similar looking Venture Electronics Bonus IE is way too sub-bassy in comparison, and therefore blunter sounding at its low end, although it also has an overall organic timbre.

The $25 Tripowin Leá lacks dynamics, and cohesion in comparison, though it has a more impressive build with detachable cable. It is harsher and aggressive sounding in the midrange.

The Vesna, I say it again, can be turned up to the hilt without sounding piercing or aggressive.

Concluding Remarks

Well, another $20 earphone withe non-detachable cable and piston-shaped earpieces. But hey, this one is more cohesive than any of its siblings I have tested (through its flatter tuning). It does essentially nothing wrong, not even remotely. On the contrary, it is an engaging, enjoyable listen for me, even with much higher-priced iems in my drawer. The Vesna’s will go in my glove department for use at the supermarket.

Until next time…keep on listening!

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All Our 302 Earphone and Earbud Reviews (with Links)

Disclaimer

The Vesna was provided unsolicited by Astrotec – and I thank them for that.

Get the Vesna directly from Astrotec or their from Astrotec Official Store.

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You find an INDEX of our most relevant technical articles HERE.

The post Astrotec Vesna Review (1) – Best In Class? appeared first on Audio Reviews.

Cons — Relatively high impedance…benefits from amplification.

Executive Summary

Introduction

BQEYZ made themselves a name back in 2018 with one of the first neutrally tuned budget iems, the $30 2DD +2BA BQEYZ KC2, at a time when budget meant V-shaped. The KC2 is still available and has a dedicated following.

The company continued a class higher with the $139 1DD +1BA +1 EST BQEYZ Spring 1, which had wonderful vocals but a somewhat pillowy bass. The subsequent 1DD +1BA +1 EST $169 BQEYZ Spring 2 improved the bass somewhat. All of the above were metal built.

The subsequent $129 1DD +1BA +1EST BQEYZ Summer deviated with its translucent resin shells and finally featured the desired punchy bass.

We have collectively analyzed all of the above to the hilt, including Durwood’s study of the effect of nozzle mesh on the Spring 1’s frequency response.

The latest BQEYZ model is named “Autumn” after the third season of the year, hence “Tre Stagioni” (three seasons). With their BQEYZ Autumn, the company reverts to metal shells being essentially identical in shape to the Summer’s.

New is the driver configuration which is a single DD. BQEYZ also offer maximum sonic flexibility by including three sets of magnetic tuning vents at the font of the shells. Each of these pucks constitutes a different front vent with its very own bass response.

It is an interesting approach contrary to the JVC FDX1, the perceived bass response of which is dosed by screw-on nozzles containing different filters. Although these alter the JVC’s upper midrange response, the effect is only heard at the low end, as the human ear registers the whole frequency spectrum in context.

Specifications

Physical Things and Usability

In the box are the 2 earpieces, the cable, 3 pairs of tuning pucks in a holder, the magnetic tuner pole, 2 sets of eartips (S/M/L), a brush, and a carrying case. The three tuning pucks (“bass”, “normal”, “treble”) are actually the inner earphone vents (also called front vents). They come in different openings: the smaller the bassier. We describe the relevant physical principles in this article.

The metal pucks are inserted and removed with the included magnetic pole. This takes as long as a tire change during a Formula 1 race. The magnetic fit guarantees minimal wear and tear even when swapped frequently. Very handy.

The earpieces are made of CNC machined metal and are built very well. The overall haptic of shells and cable is great. BQEYZ have addressed the criticism of the BQEYZ Summer’s resin shells.

Fit and comfort are very good, isolation is rather poor for my ears. The cable has silver-coated copper and high-purity copper strands. It is loosely braided with minimal contact area between the strands for minimum interference. I find the cable rather pliable and light – it has no microphonics.

2 sets of eartips (S/M/L) are included, one wide bore and the other narrow bore. Note that the nozzle diameter exceeds the usual 4.5 mm so that many third-party eartips will not fit. You may try the SpinFit CP500 or any Azla SednaEarfit models if going for third-party tips.

Tonality and Technicalities

A universally valid assessment of the BQEYZ Autumn is difficult as tonality and technicalities depend on the interplay of several factors: magnetic tuning puck + eartips + source (in any combination). This versatility allows to you pretty much to create your own favourite sound.

Considering its 46 Ω impedance, the Autumn benefits from amplification, although it works surprisingly well with my iPhone SE (1st gen.). For example, the powerful Apogee Groove produces a much cleaner and better defined image than the weaker AudioQuest DragonFly Cobalt.

Using the JitterBug FMJ with the Apogee Groove makes quite a difference in that it ads definition to the image. The difference is actually considerable.

With the wide-bore stock tips, the “bass” vents generate more…yes…bass…which drowns the vocals out somewhat — and the “normal” vents bring voices more into the foreground without sacrificing bass impact. But this latter combination may be bassier than the combination of “bass” vents and JVC Spiral Dots.

I played with the stock eartips but got the best results with the JVC Spiral Dots that disperse some of the mid-bass and produce the tightest possible low end. Bass generally digs deep but the vocals move into the foreground with the JVCs. Signature becomes brighter but notes also cleaner and more articulate.

I also experimented with the vents, and the normal ones yielded the best result (in combination with the Spiral Dots). The bass vents “overthicken” the low end, move the vocals back and therefore remove intimacy and detail.

My favourite combination therefore is the normal vents with the JVC Spiral Dots.

So, how does the BQEYZ Autumn sound, actually (with “normal” puck and Spiral Dots)? It has the classic slightly warm single-dynamic driver sound with a rather crisp attack adding some edge.

The low end is on the tight side, it is well extended and remains focused to the lowest frequencies. There is no mid-bass hump as emphasis is on the lower frequencies, just above sub-bass. Drum kicks in the mid bass are not as pronounced as they could be but they are nevertheless hard as a rock – and dry.

Lower midrange is standalone without bass bleed. Male and female voices are somewhat recessed, of medium note weight, energetic, and natural. There is no shoutiness but we are getting there, although that 5 kHz peak is not irritating to my ears.

Midrange temperature is a bit cooler than in the bass region but still not quite neutral. Midrange resolution is very good, everything clean and clear there. Note definition is very good.

Lower treble rolls of substantially. Cymbals are a bit back and don’t have the best definition – but they are still ok. Resolution is better in the midrange than in the treble region.

Stage is average in width, height and depth. Spatial cues is very good. Attack is sharp and crisp without being aggressive. The dynamic driver is rather nimble. Stage positioning and separation are also good. Timbre is good.

I am a bit short in my sonic description as it mostly applies to this very particular setup.

BQEYZ Autumn compared

The dynamic-driver competition in the $200 region is tight. The Tanchjim Oxygen (which I don’t know) and the JVC HA-FDX1 are standard staples on our Wall of Excellence (also count the 1+1 IKKO OH10 in). The Moondrop KATO is arguably the company’s best dynamic-driver offer.

To disappoint you, it is impossible to tell which is the best of the lot as they are very close in terms of (sound) quality. But they differ quite a bit in ergonomics.

For example, the IKKO OH10 is very heavy in one’s ear, and so – but to a lesser extent – is the KATO. The Oxygen have short nozzles that may not fit everyone and the JVCs have a weird shape altogether that may not be the most comfortable for many either. In this respect, I prefer the Autumn’s compact shells.

But what I can say is that the Autumn sound more refined than the brighter $139 BQEYZ Summer, particularly in the midrange. The JVCs are not as crisp as the Autumn, they are smoother, dampened, with more rounded notes – but not as deep. The Autumn are rougher around the edges, more dynamic/energetic, and they have more midrange body and a much better sub-bass extension.

The Moondrop KATO are brighter than the Autumn (in my setup), with a wider but shallower stage. They have a smoother bass and vocals are not quite as intimate. They also have more sparkle with more air in the midrange. And they are more prone to shoutiness. How graphs can deceive us. Voices are a bit thicker and more rounded in the KATO. Treble resolution is similar between the two.

As I tend to say (well I stole it from Alberto): pick your poison!

Concluding Remarks

The BQEYZ Autumn are well built and good sounding single-dynamic driver earphones that fit their price category well – and that can prevail against their tough competition.

Whilst it is difficult to rank the large crowd of $200 single-dynamic drivers, the Autumn stick out in two aspects: comfort/fit and sonic versatility through the included tuning front vents. They are, in my opinion, the best offering in BQEYZ’s 3 season series.

Tre stagioni? Quattro stagioni! Now we are ready for “inverno”. No, that’s not what you think*…learn Italian…

Until next time…keep on listening!

*Italian: winter

The post BQEYZ Autumn Review (1) – Tre Stagioni appeared first on Audio Reviews.

Cons — Timbre not the most organic; large shells; rose gold not for everyone.

Executive Summary

The Hidizs MM2 is a well resolving iem that let’s you adjust the sonic signature with three screw-in outer vents. Another novelty is a magneto-static driver for the treble.

Introduction

Hidizs are a Chinese company that came on strong recently with their dongles and digital analog players. We analyzed their popular S3 Pro and S9 Pro DAC/Amps and their very good AP80 and AP80 Pro X players. As it looks, the company has a bit of catching up to do when it comes to earphones. Their MS1 Rainbow model received a mixed reception from Durwood and Loomis.

Hidizs’ latest MME iem implements a few semi-novel ideas, “self tuning” and a magneto-static driver for the uppermost frequencies.

Earphone tuning, the practice of generating a specific frequency response, has become an important marketing tool. YouTube/blog influencers lately picked up on it, projecting their personal preferences in the shape of “target graphs” onto the consumer – which provides a new revenue stream for them and the companies alike.

The consumer also benefits – from the lack of unpleasant surprises: no more “screamers” with icepick signatures in the mail anymore means much less risk of losing our money. On the downside, the consumer has to cope with silly avatars of the “celebrity tuners” on the shells – and an extra royalty to them.

So, why not do it yourself? There are several methods to tune your earphone according to your taste. First, the old “taping vents and nozzle methods”, as described in many of our reviews and also explicitly in our blog. This is referred to as “reversible modding“, which is based on simple physical principles. It is called “reversible”, as you can easily bring the iem back to its original state without any damage done to it.

But there are more convenient methods. For example, the Anew X-One comes with tuning modules that are being plugged into the faceplate. These look like little opamps and probably alter the earphone’s impedance. JVC’s HA-FDX1 deploy exchangeable nozzles containing different filters that change the midrange frequencies but keep the low end consistent. BQEYZ use a different method in their Autumn iem in that the user can change the width of the inner vent with magnetic pucks.

Hidizs have yet another approach to user tuning in their $79 MM2 by providing screw-in outer vents that change both lower and midrange frequencies. For the case you are confused now: the physics of “venting” is explained in our article. Let’s see how well it works for the MM2.

Specifications Hidiz MM2

Physical Things and Usability

In the box are the earpieces, cable, 2 sets of silicone earpieces (wide-bores and narrow-bores), 3 sets of tuning valves (bass, normal, treble), carrying case, and the paperwork.

Each screw-on tuning valve represents an outer vent. The included tuning vents therefore differ in opening diameter: the bigger the “hole” the more bass is produced.

The earpieces are very light and somewhat bulky…you see a lot of space inside them. But maybe these large “resonance chambers” are needed for the sound signature. They fit well, are comfortable, and don’t seal very well for my ears. Their lightweight comes in handy.

The cable is excellent: pliable, light, and it has no microphonics. Just the rose gold colour mix (and maybe the handbag-like carrying case) may not hit everybody’s taste. Both sets of eartips fit me well but I prefer the wide-bores.

Tonality and Technicalities

Equipment used: MacBook Air | Earstudio HUD 100 (low gain) with AudioQuest JitterBug FMJ | stock bass filters | stock wide-bores.

Since Hidizs give you the option to perform your own tuning with the included screw-in filters, I started tinkering with them…and finally decided on the bass vents as the created the “most substantial” sound experience for me with a great vocals reproduction.

In the big picture, the Hidizs MM2 is all in one: a neutral sounding iem (normal filters), a warm one (bass filters), and a screamer (treble filters ).

In my favourite “bass” configuration, the MM2 deliver a “fun” signature with some surprisingly good sonic characteristics.

Bassy filters means serious bass, without being too serious. Focus is on sub-bass. It digs deep, very deep – and with some energy. Mid bass slam has still good impact. This makes the low end a bit blunt and less tight than I want in some tracks. I don’t think the bass is overdone, though. All in good doses. It’s fun tuning after all.

The transition to the midrange works rather well. I would not call it bleed but the bass re-inforces the vocals in the lower midrange department quite efficiently. Although recessed, female and male voices are not lean or thin but have some nice richness and creaminess. They are not your stale black coffee but more a mocha latte with 2% milk. Notes are surprisingly well rounded. The MM2 beats a notorious weakness of budget iems in this department. And, although there is enough energy in the vocals, there is no shoutiness.

Treble is well resolving. Cymbals are very crisp, clear, and well carved out, but also a bit robotic, which is an artifact of this kind of driver. And since the treble sits a bit back, the cymbals are frequently covered up to some extent. I take it the magneto-static drivers are connected and working (as opposed to some of the competition’s).

Stage is no the widest but has good height and decent depth (with the bassy filters). Resolution, separation, and layering are astonishingly good. But…the timbre…is somewhat plasticky and could be more organic. Once I got used to it is as fine. That’s the biggest concern I have about this earphone – and I’d take $20 off for that.

And if you want to know how the MME compares to its peers, you find it in Kazi’s review.

Concluding Remarks

So why not tune yourself? By screwing in tuning filters you also screw the noisy YouTubers…that bad pun may be allowed. Hidizs have done a decent job with the MM2 and the tuning filters, which can be helpful particularly for newbies who want to learn different sonic signatures. Nevertheless, the MM2 could be $20 cheaper imo. But, maybe Hidizs let you tune your own price, too…see included coupons.

Until next time…keep on listening!

The post Hidizs MM2 Review (1) – Screw The Tuners appeared first on Audio Reviews.

Executive Summary

The Burson V6 Classic opamps are a valid alternative to the V6 Vivid opamps for those who prefer a leaner, wider, and better resolving sound. The V6 Classic work particularly well with acoustic pieces and jazz, but also with sources too warm for the V6 Vivid.

Introduction

Burson Audio is a >20-year old innovative company from Australia that produce high-quality DACs and amps. They started their business with opamps and other audio parts before dipping into complete devices.

I have exhaustively analyzed their lowest-priced amp, the Burson Funk, which, in its “Deluxe Package”, comes with a pair of Burson’s flagship V6 Vivid opamps that produce an energetic and dynamic sound. But the company offers another set of flagship opamps separately, the V6 Classic, which generate an alternative sound signature.

Both, V6 Classic and V6 Vivid retailed at $85 per piece/$145 per pair at the time of this review. You can order them from Burson. Both models are based on 12 years of research and carry a life-long warranty. V6 stands for Version 6 (or 6th generation). You can learn about their internals here.

What are Opamps?

Operational amps (“opamps”) are one of the building blocks of analog electronics circuits, used for sound optimization and customization. Opamps fine tune the’s sonic signature and help tailor the sound to the listener’s preference – similar to tubes in tube amps.

Opamps are universally deployable across different amps independent of brand. They are easily plugged into/pulled out of an amp’s logic board.

Caution, “opamp rolling” can be addictive!

Physicals and Installation

In the box are two opamps and two adapters. You don’t need the adapters when plugging the opamps into a Burson amp. If using them with amps of other brands, make sure there is enough space in the enclosure. Considering that most other opamps are these flat spider-like things, the Burson opamps are little skyscrapers.

You install the opamps by opening the enclosure (Allen keys included), align them according to manual, and stick them into the dedicated slots on the logic board. The Burson Funk, for example, has 2 such slots, one for speakers, and the other for headphones.

And if you align the opamps incorrectly, Burson’s unique “reverse voltage protection” prevents them from getting damaged.

The Burson Funk holds two opamps, one for the headphone circuit and the other for the speaker circuit. You can use a different opamp in each signal path. Many users prefer the V6 Classic for headphone use and the V6 Vivid for speakers.

Test Setup

I tested both opamp models, the V6 Classic and the V6 Vivid with the Burson Funk and different headphones/earphones. I used a neutral and a warm source to establish a possible source dependence for the performance of these opamps. After all, you’d expect the warm V6 Classic to pair better with a neutral source and the V6 Vivid to harmonize best with a warm source.

Neutral source setup: Questyle QP1R as DAC via AudioQuest Golden Gate RCA interconnects into Burson Funk amp. Warm source setup: Questyle QP1R as transport via Lifatec USA optical cable into EarMen Tradutto DAC and via AudioQuest Golden Gate RCA interconnects into Burson Funk amp; Sennheiser HD 600 headphones, JVC HA-FDX1 and Final E5000 iems.

Sound

Previously, I had tested the V6 Vivid opamps for my exhaustive Burson Funk review. What became evident to me was how the Burson Funk with the V6 Vivid opamps replaces the neutral signature of the Questyle’s own Class A amp with a slight warmth and an overall subtle tone colour. Sound is quite natural and definitely not digitally artificial.

Replacing the Vivid with the V6 Classic changes the Funk’s sound substantially — similar to exchanging the pickup of a record player or the earpieces on an iem.

To give you the helicopter view: the Classic make the Funk’s sound sound wider, more open, leaner, more neutral, and flatter, but also faster. In contrast, the V6 Vivid create a thicker, bassier/warmer, deeper, more dynamic but also narrower sound.

In detail, the V6 Classic deliver a tighter, faster, more composed bass compared to the V6 Vivid’s thicker, richer, and warmer low end with a better sub-bass extension, which contributes to the V6 Vivid’s deeper soundstage. On the other hand, the V6 Classic’s more forward treble makes for a wider, more open but also flatter stage. Due to the lesser warmth from the bass, the V6 Classic’s mids are leaner, cleaner, and clearer, as opposed to the Vivid’s richer, smoother, softer, and more rounded notes. This results in a better midrange resolution, transparency, and spatial cues in the V6 Classic.

Saxophones, cellos, and vocals sound leaner and “sharper” with the V6 Classic and smoother/richer/thicker with the Vivid. The advantage of the V6 Classic’s leaner presentation is “more space between notes and musicians on stage” and therefore better instrument separation and placement. A symphony orchestra on stage becomes easier congested with the V6 Vivid than with the V6 Classic.

On the other hand, the V6 Vivid have more dynamics and therefore a punchier sound.

V6 Classic: the right Choice for You?

The question is not which opamp is better, but which source and music fits better to which. I find the better resolving, “wider” V6 Classic better suited for acoustic pieces, classical music, and jazz. The more dynamic, punchier Vivid are better working for rock music and electronic…or anything noisy.

But that’s my observation for my combination of neutral source and neutral iems/headphones. If you have a warm source, you may overthicken your music with the Vivid, the same accounts for warm headphones and earphones. So you may have to balance the temperatures of source and headphones/earphones against the choice of opamps.

Concluding Remarks

My analysis shows that the performance of the V6 Classic (and V6 Vivid) opamps are to some extent source and output dependent. Whilst, admittedly, the V6 Vivid is more universally deployable, the V6 Classic caters to the listening to acoustic/classical/jazzy pieces and such who want to cool their coloured source.

In the end, the opamp choice relies on personal preference and savvy aficionados collect them all. Opamp rolling is not any different from tip rolling (and cable rolling) with earphones/headphones, it is just another enjoyable addiction for audio junkies.

Until next time…keep on listening!

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Disclaimer

The V6 Classic opamps were provided by Burson – and I thank them for that.

Get the Burson opamps HERE.

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You find an INDEX of our most relevant technical articles HERE.

The post Burson V6 Classic Opamp Review – Carnegie Hall appeared first on Audio Reviews.

And we keep it like that.

However, running a blog costs money….web hosting, domain name, and also postage (“Head-Fi tours” etc.), and sometimes import/brokerage fees (“DHL, Fedex etc. are self indulgent”). PayPal does not seem to work for us – no “donations” coming in. So we (or rather I) decided to get a single, exclusive sponsor to support our website costs….and nothing more. In fact, the compensation received will NOT be enough to cover our shipping/import fees.

And we were picky in our choice. HifiGo are a reputable company that have proven reliable as mediator in warranty issues and have been fully transparent in the past. Our relationship has built on 2-3 years of loose collaboration. Earlier, HifiGo had sent us review units, but this burden has shifted to the manufacturers. Lately we did not receive any review “samples” from HifiGo.

But even if we did, would it affect our reviews? Well, I am the guy who has carried the site’s cost alone, so I will be the sole “beneficiary”. The money will underlie proper taxation. But we are six reviewers, five of which remain unaffected by this. So, in the worst case scenario, there will be only one bad apple: me!

As for HifiGo…they have the benefit of not being crammed in between a mass of other ads. We appreciate them as our exclusive partner.

This means for audioreviews.org: despite this one ad, we will remain non-commercial as we do not even break even in the big picture.

And what’s in it for you? You won’t have any interruptions in your reading flow…no invasive ads in the text, no nasty popups, and not that annoying garbage when attempting to load a new page. ALSO: very fast page load times. Our front page takes about 1 s to load completely, comparable sites up to 9 s (check for yourself: https://gtmetrix.com).

In summary, this cooperation is a win-win-win situation. What else do we want?

Until next time…keep on listening!

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Cons — V-shape; heavy earpieces, shoddy cable.

Executive Summary

Introduction

The OH10 “Obsidian” has been hanging on our Wall of Excellence for a while, mainly triggered by Alberto, who had written a glowing review. He characterizes the OH10 sensibly and exhaustively so that there is not much room for things to add.

I have tested the OH10 for 1/2 year with endless source combinations.

IKKO is a company that has excelled through excellent builds and a rather small quality rooster of iems (and lately other products), each of which has had a rather long shelf live. The company obviously designs sustainable quality, which is not easy to find in the Shenzhen environment.

The OKKO OH1, their first offering, may have been a bit bright for my taste, but it stuck out from the field because of its sturdy metal build and the unusual shape of their earpieces. It was recently superseded by the smaller OH1S, which is highly underrated because of anti-hype by the usual YouTube screamers. The OH10 was introduced between the two models. It has been on the market for a while, and it is still as relevant as on its first day.

Specifications

Physical Things and Usability

Please relieve me for once from describing the photo showing the content. Yes, the cable is crap and I use Final E tips.

The metal earpieces are super heavy and relatively big – and probably more suited for home use, but their haptic is great. The nozzles are long enough. Fit is good, comfort depends on how much I move, and isolation is average.

Tonality and Technicalities

I was for the longest time in the belief the OH10 featured a crisp single dynamic driver…but it is rather a 1+1 (dynamic driver and balanced armature driver) constellation…which speaks for its cohesion. Both drivers obviously harmonize well with each other.

To give you the helicopter perspective: the OH10 excels by its fantastic bass slam and its excellent imaging. The price paid is recessed vocals and treble extension.

OK, ’nuff said already. Now you know what Alberto and I think of the OH10.

Co-blogger Kazi gave his snappy account on Facebook:

• Unique shell design and very dense shell material. 
• Too heavy for some, myself included. I find them to weigh down on my ears after a while.
• Isolation is lacking.
• Sub-bass is excellent. Punchy, agile, with good amount of rumble.
• Mid-bass is slightly thinner than expected but got good texture. 
• Vocals are recessed. Not gonna set the world alight with midrange performance.
• Upper-midrange can feel peaky at times. I found them to be too up-front on some hard rock tracks. 
• Treble is inoffensive, decent amount of sparkle but lacks the extension and air of upper-tier stuff. 
• Good staging, not as wide or deep as E5000 but fairly balanced across all three axes. 
• Imaging is decent, did not stand out to be as much as, say, the Falcon Pro. 

IKKO OH10 Compared

People keep asking for comparisons with the IKKO OH1S “Gems”, which is redundant as both sound totally different. The OH1S is more forward and brighter, and one cannot replace the other. That’s why companies run different models simultaneously…duh!

More interesting appears to be a comparison between the OH10 and the Unique Melody 3DT with its three dynamic drivers. As you can see, both have largely overlapping frequency responses. But I have to disappoint you again as both iems sound completely different. The UM 3DT is much more analytical and less engaging than the OH10.

But what this tells us the limitations of frequency response graphs for characterizing the sound of iems.

Concluding Remarks

The IKKO OH10 gives $$$ conscious audio enthusiasts access to premium quality at a mid-tear price. With its excellent imaging, it plays in the league with the big, expensive boys…not on top, but well above the bottom.

What you sacrifice is comfort through the large and heavy earpieces and some vocals intimacy through the V-shape. But the OH10 does full justice to high-quality sources way above a phone.

It is for good reason a standard staple on our Wall of Excellence…and will remain there for a long time…and im my collection. Kudos to IKKO for demonstrating sustainability in the short-lived world of Shenzhen consumerism.

Until next time…keep on listening!

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Disclaimer

The Ikko Gems OH1S were provided by Ikko for my review and I thank them for that. I also thank Alberto and Kazi for discussion.

Get the Ikko Gems OH1s from ikkoaudio.com

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The post IKKO OH10 Review (2) – On Our Wall Of Excellence appeared first on Audio Reviews.

Hidizs’ new MM2 earphone features 2 drivers, a dynamic and a magneto-static one. It features three different screw-in outer vents to vary bass response. (you find the physical principles here). I have not had much testing time yet so I cannot yet comment on the sound.

Here you have the opportunity to check out the MM2’s physical features.

Specifications Hidizs MM2

Images

The post PhotoGraphed: Hidizs MM2 appeared first on Audio Reviews.

The BQEYZ Autumn remidies all previous issues and is the best and most mature sounding iem of the series. In fact it is a very good and enjoyable single DD iem. And it is flexible, sonically, as you can adjust the bass response with the three included front vents.

Before you read my Autumn review, you have the opportunity to check out the Autumn’s physical features. Is the nozzle length right for you, will the shell fit your ears well? Sound quality is only one aspect of an iem’s functionality. And the best iem is the one we use most. Don’t you agree?

Specifications

Images

Get the BQEYZ Autumn from aliexpress.

The post PhotoGraphed: BQEYZ Autumn vs. BQEYZ Summer appeared first on Audio Reviews.

This is a visual intro to the IKKO OH2 Opal. IKKO have been a company offering a small but fine selection of iems. That has changed lately as they have expanded into electronics. We at audioreviews.org have followed their iems since their OH1. The $199 IKKO OH10 made it even onto our Wall of Excellence.

The OH10 have a very safe, likeable V-shaped tuning with no peaks or pierces and huge stage. They are a first taste of the premium segment at a mid-tier price…and therefore a rare example of justifying the otherwise hollow marketing term “entry level” (with respect to premium).

The smaller $159 IKKO OH1S shows a completely different tuning with a strictly linear bottom shelf and a rather “vivid” treble that caused some confusion with the reviewers. The rumour arose that the OH1S don’t have “enough” bass and to much spice in the upper registers. In fact, their bass response is just fine and the treble extension may be a matter of taste.

What was also unusual is their oval nozzles for which I had issues finding third-party tips suiting my ears. On the other hand, the included IKKO foams work well in that they provide a good seal and help with the bass.

IKKO responded to the criticism of the OH1S with the new IKKO OH2. They are a tad larger than the OH1S and have the same accessories – at a much lower price. The biggest difference is in the tuning: while the bass shelf was kept the same, upper OH2’s midrange was somewhat reduced, and much of that treble extension was shaved off. The result is a more generally appealing sound.

Specifications IKKO OH2

Images

Get these earphones from IKKO Audio.

The post PhotoGraphed: IKKO OH2 vs. IKKO OH1S appeared first on Audio Reviews.

Cons — Strangely implemented EST causes narrow soundstage; deserves more accessories.

Executive Summary

The LETSHUOER EJ07M is a very enjoyable neutrally-tuned vivid performer with an added bass boost.

Introduction

LETSHUOER are a Shenzhen company specializing in OEM. They are having a current hit with the $149 planar magnetic LETSHUOERS12. The LETSHUOER EJ07M are the company’s current flagship iem and improved version of their very first iem, the $850 EJ07.

Whilst I am always critical with newcomers skipping elementary school and taking shortcuts, the EJ07M is a good pair. I found it first non descript, but it slowly grew on me. And it grew quite big. It is an earphone more on the lean side without being sterile.

Specifications

Physical Things and Usability

In the box is…actually not much for an iem of this price: the earpieces, an occ copper cable, 2 sets of silicone eartips (S/M/L), a little box with foams, a cleaning brush, a metal case, and the paper work. Just like the S12, the EJ07M features rather small earpieces, which provide for a good and comfortable fit (for me). They are made of aviation aluminum alloy with fancy, one-of-a-kind faceplates. The company claims they block up to 26 dB of ambient noise. Their low impedance makes them easily drivable.

I found the earpieces’s haptic and form factor great, but the isolation was only soso for me. The cable’s wire structure may be of great purity/quality, there is no microphonics, however the overall jewellery effect is rather small.

LETSHUOER’s translucent standard stock tips worked well for me.

Tonality and Technicalities

Equipment used: Sony NW-A55; Macbook Air + AudioQuest DragonFly Cobalt or Earstudio HUD100 (high gain); white stock tips.

The EJ07M is tuned in a gentle U-shape, with a bottom-end emphasis on sub-bass, a moderate pinna gain, and an early treble rolloff. It is essentially neutral with a sub-bass boost. The graph resembles “the personal target curve of the season” of many reviewers (we at www.audioreviews.org don’t have such a thing), which excludes disturbing peaks and other unpleasant surprises. Its presentation is on the lean but never analytical side.

Sub-bass extension is decent (and the rumble can be a bit fuzzy), mid-bass is focused/, slightly lean with a crisp attack and fast decay, much faster than expected from a single-dynamic driver. It has a good kick and tactility. There is no mid-bass hump that pounds unpleasantly against my eardrums.

Transition to the neutral lower midrange is smooth and without bleed because the low-end boost is so far below that it does not affect vocals and instruments (crisp piano), which have very concise note definition and energy. They are not overly rich but never thin and also not recessed (vocals can be intimate), and the corners can be somewhat sharp. The midrange is very clean and clear and there is no shoutiness (although we are getting close). All this makes for great speech intelligibility.

Treble rolloff starting at 4 kHz narrows the soundstage and limits sheen. This is surprising as you would expect outstanding extension from an electrostatic driver, as perfectly demonstrated in the Vision Ears Elysium, for example. High notes are very subtle and back. A very sparse use of the EST.

Soundstage has good depth but the aforementioned limited width. Dynamics is very good, there is plenty of impact in the attack. The music is more moving back and forth than sideways. Spatial cues is very good. Lean notes make for lots of space between instruments on a crowded stage and great midrange clarity. Transients are generally fast, particularly at the recessed top end. Resolution is very good!

In summary, the “edgy” EJ07M is well rounded (sic!) and does nothing wrong.

LETSHUOER EJ07M Compared

The $150 magnetic planar LETSHUOER S12 iem plays bassier, has a wider but shallower stage, a tad warmer, and therefore less neutral. The EJ07M offers better vocals rendering, better (micro-) dynamics, and similar resolution.

The more organic $600 single DD Oriolus Isabellae plays thicker, richer, softer, and more relaxed, lagging behind in resolution and crispness and energy in favour of timbre and a soothing temperature.

Compared to the warmer, bassier $699 Dunu Zen single DD, the EJ07M lacks depth and body and plays swifter and more brittle. The Zen has a pronounced upper midrange glare and an earlier treble rolloff.

Concluding Remarks

The LETSHUOER EJ07M excels by doing well in all departments, though not achieving the highest possible score in each of them. It delivers a swift, neutral sound with a boosted sub-bass and technicalities in line with its peers. Nevertheless is its main competition internal, as the excellent $150 LETSHUOER S12 is not far behind in most aspects.

Until next time…keep on listening!

Contact us!

All Our 316 Earphone and Earbud Reviews (with Links)

Disclaimer

The EJ07M were provided by LETSHUOER and I thank them for that.

Get the LETSHUOER EJ07M from letshuoer.net.

Our generic standard disclaimer.

The post LETSHUOER EJ07M Tribrid Review – Dreimal Gut appeared first on Audio Reviews.

Cons — Strong tip and source dependence; fixed cable.

Executive Summary

The Whizzer BS1 is a warm sounding iem of interesting design and haptic that, when sourced right, provides for a relaxed and resolving natural listening experience.

Introduction

Whizzer is a Shenzhen company, established in 2016, that focuses on high-quality budget to mid-tier earphones with appealing industrial designs. Apart from sound quality, they emphasize aesthetics, as seen, for example, in their Whizzer Kylin HE01 with its traditional jewelry appeal, or their minimalistic Whizzer Kylin HE03AL. Most recently, our own Durwood tackled the new Whizzer Kylin HE03D.

The new <$30 Whizzer BS1 is a “paygrade” below the above, but nevertheless features innovative optical and mechanical designs.

Specifications

Physical Things and Usability

In the box are the iems, 2 sets of silicone eartips (wide/narrow bores), shirt clip, storage case and paperwork. The shape of the earpieces and the fixed textile cables are reminiscent of early Xiaomi iems.

The light earpieces are different from the mainstream in terms of shape with the angled short nozzles and their relative soft feeling between the fingers. Because of the short nozzles, I need long stemmed eartips. The stock ones don’t fit my ears. You have to insert the earpieces deeply to get optimal sound, though isolation remains mediocre (for my ears).

Careful, nozzle angle and shortness may not work for everybody’s ears.

Tonality and Technicalities

Equipment used: Sony NW-A55, iPhone SE (1st gen.); MacBook Air + AudioQuest DragonFly Cobalt; SpinFit CP145; Azla SednaEarfit Light (long stemmed)…stock tips were too small for me.

It takes some TLC and time to unleash Whizzer BS1’s sonic qualities. And if done right, they sound amazing considering their price: warm and lush with great timbre and resolution. But it takes a warm source and the right eartips, in my case the DragonFly Cobalt and the SpinFit CP145. The “colder” Sony NW-A55 or iPhone SE in combination with the long-stemmed Azla SednaEarfit Light sounded harsh and unpleasant.

The eartips alone make a huge difference: the Azlas have better low-end rumble but also bring out that pinna gain more, which is fatiguing to my ears after a while. The SpinFits narrow the stage somewhat and clip the sub-bass slightly, but also add some smoothness to the mids.

For this earphone, you can for once, forget about the graph as it does not reflect the above characteristics and differences. Whilst the graph bears a strong resemblance to the Moondrop SSR’s, the latter is way more aggressive sounding.

The problem is that my characterization of the BS1 is in most aspects only valid for this particular setup, so please read more reviews to get the complete picture.

Sourced by MacBook Air + DragonFly Cobalt with SpinFit CP145 eartips, and a very deep insertion depth (!!!), I recorded an excellent spatial cues and a wide and tall stage with reasonable depth. The sound is slightly on the warm side, at a pleasant “temperature”.

Vocals are intimate and somewhat in the foreground without being piercing (as said, this was a different story with my iPhone SE). Note weight and note definition are both surprisingly good and enjoyable. Voices sound natural and relaxed. The upper midrange is dialed back which contributes to the more relaxed vocals and a lack of shoutiness.

This lower midrange is underlain by a clean, well layered, warm bass that can be adjusted with eartips. The Azlas produced a bit more sub-bass rumble whereas the SpinFit CP145 a more focused mid bass with still enough sub-bass extension. Speed is typical of a dynamic driver. Slam is well-dosed but not overbearing. I find the low end very composed and out of the way of the midrange – as it should be.

Treble is a bit subdued. High notes are migrating in the background but the good treble resolution makes up for it. There is no grain up there, all relaxed. What’s strange is that I don’t register that early drop-off shown in the graph. Sure, there is no overbearing 4 kHz energy but high piano notes sound well extended and sparkly.

Apart from the staging, resolution is astonshingly good across the frequency spectrum and so are layering and separation. I find my way across the stage quite well in the BS1. Transient as nimble and timbre is natural.

Concluding Remarks

The Whizzer BS1 is a different beast in that it is open back. If sourced properly, it is a very good iem that excels by its organic timbre and its surprisingly good resolution, separation, and layering.

On top of its sound qualities, it features a very unusual and interesting design. Kudos for Whizzer for having deviated once again from the same old same old the market offers.

Until next time…keep on listening!

Gallery

The post Whizzer BS1 Review – Art Nouveau appeared first on Audio Reviews.