7Hz Timeless Review (2) – Planar Power!

INTRO

Lately there seems to be more and more flat driver tech infiltrating the in ear headphone market. Flat drivers differ in how they produce sound in comparison to dynamic drivers. Flat diaphragm driver like planars rely on the bending characteristics of the material itself to produce sound waves, whereas in direct opposite the dynamic driver tries to maintain it’s shape through various geometries and materials to stiffen it up so that it can act as a piston and minimize bending waves. These two concepts are transverse (planar bending) and longitudinal waves (dynamic piston).

This year I had considered the PMV PP flat planar but then 7hz exploded onto the scene with the 7Hz Timeless 14.2mm flat planar IEM with much fanfare. I succumbed to the temptation and bought a pair to see if this hype was warranted. By now this is probably the 101th review of these, so I took my time to get on board. 7Hz Timeless dazzles with it’s resolving sub-bass infused Harman tuning or U signature, with analytic grace.

Disclaimer: I had some Amazon gift cards burning a hole in my pocket so I purchased during the 11.11 weekend sale from Hifigo on Amazon. We buy our own stuff sometimes believe it or not.

GOOD TRAITS

  • Generous eartip selection
  • Clarity, Resolution
  • Above average isolation
  • Lightweight

NEEDS IMPROVEMENT

  • Bass is tuned very low, the transient speed does not match
  • Not the prettiest of the bunch
  • Channel matching throughout the treble
  • Needs more than a smart phone to shine.
  • Missing holographic elements

PHYSICAL / PACKAGE

The shape is interesting, the flat round faceplate hides a rather simple shell. The flatness and grooves provide a simple and painless way to insert them into your ears. With rounded shells, I find myself fiddling and losing my grip sometimes.

An unassuming silver twist detachable cable with a simple earhook comes with the 7Hz Timeless. It coils well, and does a good job of avoiding microphonics. They took my favorite qualities except for one, the mmcx connection. Cable snobs will find it boring looking.

The carrying box seems overly large and heavy, looks awesome sitting on my desk and could be used as a defense mechanism in a pinch by chucking at ones head. Surprisingly it doesn’t appear much larger than the Moondrop Kato case and will definitely allow you to know if you forgot to put it into your pocket.

PACKAGE CONTENTS

  • Detachable MMCX Silver cable
  • Metal carrying case
  • 3 sets of S/M/L eartips -Medium Bore, Small Bore, Bowl shaped medium bore with carrying cases
7Hz Timeless
Moondrop Kato vs 7Hz Timeless

SOUND

Tested with LG G8, Sony NW-A55 and Liquid Spark DAC+JDS Labs Atom

First the very noticeable sub-bass is front and center and the fact it goes so low and is boosted causes some speed issue for me given the rest of the quick and precise nature of the 7hz Timeless. The lift in the bottom end really lets upright bass and bass drums fill your head with extreme lows, but not in the basshead ear tickling ways. Since the slight boost is pushed so low, there is no bass bleed into the lower midrange.

Velvety smooth vocals complement the rise into the upper midrange, there is excellent darkness that allows the midrange to feel the space or environment of the recording. Horns and present flare and sharpness that provides realism, these are not for relaxed listening but instead for enjoying the nuances of the music and deep listening sessions.

Acoustic guitar plucks are rendered with such resolution as to not get lost in the macro details. Snares, cymbals crash through with sharp well defined precision. Sibilance is non-existent unless purposely in the recording, and there is plenty of airiness to make these a lively set.

TECHNICALITIES

Resolution and transparency is outstanding for the 7Hz Timeless. Width and depth are equally balanced and height information comes through as well. It is really hard to find any faults other than they need some power to extract their full potential. On the sensitivity topic, the LG G8 did just ok but I found myself at the higher volume range.

The Sony NW-A55 was a better fit so this is probably one of the bigger shortcomings given IEM’s are normally geared for mobile use. Given their extreme analytic qualities, I find longer listening sessions can be fatiguing because the 7Hz Timeless really demands your attention.

Also check Loomis’ take on the 7Hz Timeless.

COMPARISONS

Shozy Form 1.4 ($180) vs 7Hz Timeless ($180-$220)

Warmer bass, damped treble, thicker vocals is what stands out when swapping to the Shozy Form 1.4, my go to IEM these days. It offers a more relaxed presentation for nights when I want to wind down. The 7Hz Timeless instead offers a thinner lower midrange with deeper bass registers and more sparkle and more cymbal shimmer. The Timeless invites a more critical listening experience due to the flat soundstage. The Shozy Form 1.4 shell feels more premium, and might add a subliminal cue despite being near the same price bracket.

BQEYZ Spring 2 ($140-170)

Presence region is enhanced on the 7Hz Timeless, just more shimmer and air compared the BQEYZ Spring 2. The Spring 2 sounds warmer with fuller vocals due to the higher frequency bass hump veering towards midbass, it lacks the control of the Timeless as well. The treble enhancement on the 7Hz Timeless gives the appearance of more resolution and clarity but both are solid performers. Transient speed is quicker on the Timeless.

Moondrop Kato ($190)

7Hz Timeless has a flatter soundstage and a U shaped signature vs VSDF signature on the Kato. Bass on the Kato has a 2 channel stereo large tower vibe while the Timeless is rocking a 2 channel system with an audible subwoofer. The Moondrop Kato is more forward and brighter, while the Timeless has an enhanced cymbal linger. Weight is also a factor, both the cable and shell of the Moondrop Kato offer a more premium feel due to the heft factor, but it is also more noticeable compared to the lighter and nimble 7Hz Timeless. The cable on the Kato is approaching lamp cord thickness boundaries. The eartips on Moondrop Kato are superior and have that Alza Xelastec stickiness feel, while the Timeless offers a generous pick of off the shelf tips. Read up on Jurgen Kraus’s detailed review of the Moondrop Kato for more info.

7Hz Timeless

WRAP UP

Given the many glowing reviews for the 7Hz Timeless I have to agree the praise is real for available planer IEM options despite it’s flat sounding 2D staging. Another purchase I whole heartily feel was “worth it” and “nice to have”. For those that enjoy squeezing out extra resolution from the first and last octaves or U shaped signature, put these on your short list.

Finally a planar IEM that we have been waiting and hoping for. In comparison to value, there are better options if non-planar IEM’s are factored in, such as the Moondrop Kato that provides better technical abilities and an overall whole premium package. By the time this is published another planar follows very closely in the footsteps of the 7Hz Timeless, so they did something right.

Also check Alberto’s analysis of the 7Hz Timeless.

SPECIFICATIONS

  • Plug Options when ordering 3.5mm or 4.4mm
  • Impedance: 14.8 ohm.
  • Sensitivity: 104dB.
  • THD+N: <0.2%.
  • Frequency Response: 5Hz-40kHz.
  • Product Weight: 5.5g/single earbud
  • MMCX

GRAPHS

  • Left vs Right
  • 7Hz Timeless vs Moondrop Kato
  • 7Hz Timeless vs BQEYZ Spring 2
7Hz Timeless
7Hz Timeless
7Hz Timeless

Contact us!

DISCLAIMER

They can be purchased at various sellers. Mine were purchased specifically from Hifigo on Amazon here.

Our generic standard disclaimer.

About my measurements.

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

FB Group
Click To Join Our FB Group!
youtube

Author

  • 7Hz Timeless Review (2) - Planar Power! 1

    Head-Fier since 2007. From an early age Durwood liked to tear apart perfectly good working things to see what was inside, always an urge to understand what made it tick. His love of music started at the local roller rink and as a result grew up with pop, electronic music (think Freestyle, Trinere), and early hiphop from the 80’s. Hit the grunge era and Chicago house in his teens when B96 had their street mixes with Bad Boy Bill, Bobby D, Julian Jumpin Perez. Became a DJ at the local now defunct roller rink because why not? A sucker for catchy TV/movie themes (Thank you John Williams). Car audio was his first audio passion, but now with a family his audio time is spent listening to headphones. The nickname is not self-proclaimed, bestowed to him multiple times and fits his experiences in life. Collector of technology and music- a maximizer trying real hard to be a satisficer. Simplicity is the goal, but the maximizer fights every step of the way.

Durwood (Chicago, USA)

Head-Fier since 2007. From an early age Durwood liked to tear apart perfectly good working things to see what was inside, always an urge to understand what made it tick. His love of music started at the local roller rink and as a result grew up with pop, electronic music (think Freestyle, Trinere), and early hiphop from the 80’s. Hit the grunge era and Chicago house in his teens when B96 had their street mixes with Bad Boy Bill, Bobby D, Julian Jumpin Perez. Became a DJ at the local now defunct roller rink because why not? A sucker for catchy TV/movie themes (Thank you John Williams). Car audio was his first audio passion, but now with a family his audio time is spent listening to headphones. The nickname is not self-proclaimed, bestowed to him multiple times and fits his experiences in life. Collector of technology and music- a maximizer trying real hard to be a satisficer. Simplicity is the goal, but the maximizer fights every step of the way.

2 thoughts on “7Hz Timeless Review (2) – Planar Power!

Leave a Reply

Your email address will not be published.