The IV-9 caught my eye because they are extremely tiny, with just a Ø4mm dynamic driver. I wasn't expecting much from these, but what I received definitely surprised me. These earphones have a bright sound. Slightly cold but warm enough to enjoy. Could be fatiguing on long listening sessions because of some sibilance on the vocals.
Ø5.8mm Dynamic Driver
Package & Accessories
Soft plastic (clear)
Ear Tips - Single-Flange:
S+M+L, unique, white (translucent), Ø4mm cyan bores
Black, 360° cable holder, generic
Build & Materials
Metal, extra-small, Ø4mm nozzles, soft strain reliefs
Metal, soft strain relief
PVC-coated, twisted, semi-soft, bend-retaining
Metal, straight, short, soft strain relief
Comfort & Fit
Unlike IV-8, the IV-9 actually use the shape of the ear and lean against the lower part of the ear, which makes them extremely comfortable.
Lows / Bass
The bass is quite good. It's gentle and moderate, but is way overpowered by the sharp highs.
Mids / Vocals
Very detailed vocal experience. However, sounds cold and hollow, and persistently sibilant.
Highs / Treble
Very detailed but also sharp, can even be unpleasantly piercing at times.
Reviewed on 2016-01-07 17:40:45 (UTC)