ø10mm Dynamic Driver + Balanced Armature


The ZSN isn't so new by now, and yet I find it to be one of KZ's best releases so far. For a rather modest price, you get a great-sounding pair of earphones with superb build quality and probably the best stock cable KZ has included so far. This time, the dumped the built-in memory wire and went for a pre-shaped ear loops, similarly to TRN's cables. It's braided and durable, yet very flexible. Very impressed by this one, and I encourage KZ to keep using that cable.

When it comes to sound, the best pair to compare with is the KZ ED16, and while they are both amazing earphones, the ZSN presents comparably edgier mids and more sibilance, and the bass on these is on the calmer side. It's hard to beat the delicate sound of KZ ED16, especially at the same price point, but the ZSN aren't that far off.

Either way, many ZSN users are huge fans, and I can surely recommend them as well. What would be even nicer is ZSN's cable and build quality with ED16's sound - that would be perfect.

Buy on


  • Excellent sound quality. Very impressive for the price.
  • Super loud and easy to drive.
  • Relatively compact and flat housings, easier to keep inside the ears than many previous KZ models.
  • Stunning build quality with an impressive use of metals.
  • The best cable that ever came from the house of KZ.
  • An absolute bargain for the price, one of KZ's best offerings.


  • The edgy upper-mids and boosted highs tend to cause some sibilance on vocals.
  • The bass might not appear as deep as ZSR's, or even ED16's bass, so bassheads could be slightly disappointed.

Package & Accessories


Hard paperboard + soft paperboard

Ear Tips - Single-Flange:

M, black, ø4.5mm bores

S+M+L, starline, black, ø4.5mm bores

Build & Materials


Plastic (glossy) + metal*, ø5.5mm nozzles


2-pin (custom 0.75mm)


Plastic (matte), single-button


TPE, stiff strain relief


Silicone (braided), 125cm, extra-soft, straight, pre-shaped ear loops


TPE, 90° angled, wide, soft strain relief

Comfort & Fit

Thanks to their compact and rather ergonomic design, these medium-sized earphones should fit all ear sizes alike. Using appropriate ear tips, I found these earphones very easy to wear for long listening sessions. No pressure points and no sharp edges that would cause discomfort. Well done!

Lows / Bass

While the bass has great quality and warmth, it feels a bit overwhelmed by the upper-mids and treble. I get nice punching bass, even with some sub-bass, while the upper-mids are rather silent, but as soon as those get louder, the bass seems a bit lost behind the high frequencies and the punch gets a bit dry. It's just a balancing issue, and probably can be solved with an equalizer, but just have to point that out.

Mids / Vocals

Very vivid, pronounced and even edgy/shouty at times, given the obvious boost at upper-mids/lower-treble frequencies. For some music styles, especially electronic music with a lot of emphasis around that range, the sound can be a bit fatiguing, so keep the volume level at bay.

Highs / Treble

Very detailed treble, I'll give them that. There isn't a lot of missing detail, you can pretty much hear every microdetail, to a point. However, on higher volume it might be unbearably loud and overwhelm the lower frequencies, especially the bass, and that could make the sound seem chill and thin. That been said, this is a specific issue with specific kinds of music, and as long as you don't go crazy with the volume level, you'll be fine, and you'll sure to enjoy some high quality sound.

Frequency Response

Published on 2019-03-12 17:50:26 (GMT)
AS06 ATE BTE C56R DT5 ED2/EDR1 ED3 Youth Version ED4 ED9 ED10 ED11 ED16 EDR2 ES3 GR HDS1 HDS2 HDS3 IE80 RX S3 ZS1 ZS5 (V1) ZS6 ZS7 ZS10 ZS10 PRO ZSA ZSE