Ivery IV-4S

ø8mm Dynamic Driver


The robust build quality of the IV-4S got me interested to try them. Unfortunately, I received a defective pair. Judging by the right channel (the faultless one), the bass is mostly distorted while vocals sound harsh and shouty. I wouldn't recommend these earphones to anyone, unless I hate them very much.

Again, this is a sad occasion where you get a very unique build quality, but poor sound quality.


  • The mids and highs sound very crisp and detailed.
  • Very solid build quality, as usual with the Ivery's IV series.
  • The included accessories are pretty nice.


  • The lows sound distorted, while the mids/vocals sound harsh a sibilant.
  • A lot of static noice when idle.
  • Very poor QA (quality assurance). The left channel is defective.
  • The included foam tips aren't made of memory foam.

Package & Accessories


Soft paperboard

Ear Tips - Single-Flange:

S+M+L, grey (translucent), ø5mm red bores

Ear Tips - Foam:

Faux foam, red, ø4mm bores

Shirt Clip:

White, 360° cable holder, generic


Leatherette, black, branded

Build & Materials


Metal, ø5mm nozzles, soft strain reliefs


Metal, single-button


Metal, no strain reliefs


Silicone-coated (smooth), soft, mildly bent


Metal, straight, short, no strain relief

Comfort & Fit

They fit really good with the pre-applied tips. They aren't bulky and don't fall out easily.

Lows / Bass

For the defective pair I received, I can only say that the bass is present, but is very poor and distorted.

Mids / Vocals

The vocals are somewhat quiet, but from what I can gather, they seem to sound quite decent. Slightly harsh, slightly sibilant, but overall not that bad.

Highs / Treble

There's a noticeable peak on the defective channel that cause huge sibilance. That probably doesn't happen on a properly working pair. Judging solely by the non-defective right channel, the highs seem a bit harsh but overall decent.

Frequency Response

Published on 2016-01-05 12:47:05 (GMT)
IV-7 IV-8 IV-9 V3