ø8mm Dynamic Driver


Out of many GEDIAO products, I found the GD400 the most interesting, so decided to buy them. I was shocked by the amount and depth of bass produced by these drivers, but was also disappointed by the complete lack of clarity in the mids and highs. The bass is just too much for them to handle.


  • A massive bass response.
  • A nice build quality for the housings, the splitter and the plug.
  • Good amount of accessories: a variety of ear tips to choose from, a branded carrying case and a branded shirt clip.


  • The bass is overwhelming the mids and highs completely. There is no clarity to the sound.
  • The cable is pretty stiff and retains bends easily.

Package & Accessories


Soft paperboard + soft plastic (clear)

Ear Tips - Single-Flange:

S, white (translucent), ø3.5mm green bores

M, grey (translucent), ø4mm bores

L, black, ø4mm bores

L, white (translucent), ø4mm blue bores

Shirt Clip:

Black, 360° cable holder, branded


Black, round, branded

Build & Materials


Metal, ø5mm nozzles, no strain reliefs


Plastic (matte), single-button


Metal, no strain reliefs


TPE, 120cm, triangular, semi-soft, straight


Metal, straight, short, no strain relief

  • The drivers use quite strong magnets. You can actually feel the earphones attract to each other around the nozzle areas.

Comfort & Fit

The earphones are quite small and comfortable, no issues there.

Lows / Bass

The mid-bass and sub-bass are really good, very punchy and goes deep. Can get muddy at times because the bass is over-emphasized.

Mids / Vocals

The mids are muffled and overwhelmed by the massive bass.

Highs / Treble

The upper-mids are muffled and lacking, but you can hear some background detail.

Frequency Response

Published on 2015-12-08 17:29:31 (GMT)