ø10.2mm Dynamic Driver


BGVP are mainly known for their SIDY earphones. This time I tried something different. The YSP04 have been waiting for a review in my drawer for quite a while, almost forgot about them. I'm impressed mainly with their build quality and high-grade design. Although I can't say that I was truly impressed by the sound quality.

Honestly, I find the overall tonality of the sound quite unnatural for my ears. It's darkish, noticeable darker than most bright (and even neutral) earphones, and the mids and upper-mids are more emphasized at the same time. It took me hours to get used to the sound, and it still isn't so enjoyable, which is the most important aspect of owning earphones to begin with. You may want to give them a try, but I'm not sure whether they worth their price. I'm convinced that there are better options at a much cheaper price.


  • Very loud and upfront mids.
  • Superb build quality. These things are built like a tank, including the cable and the plug.
  • Great packaging and accessories. Everything you need to begin using these earphones is present.


  • Somewhat dark (and a bit too loud) mids, cause the sound to sound somewhat dirty.
  • The bass response isn't bad, but unimpressive and relatively narrow. Most emphasis is on the lower-mids, which causes vocals to sound tubby.
  • Slight discomfort from the not-so-effective design of the housings.

Package & Accessories


Chipboard (textured)

Ear Tips - Single-Flange:

M, black, ø4mm bores

S+L, black, ø4.5mm bores

S+M+L, red, ø4mm bores

S+M+L, grey (translucent), ø4mm red bores

Shirt Clip:

Black, large, 360° cable holder, generic


Velour, black, generic

Build & Materials


Metal, ø4.5mm nozzles, soft strain reliefs




Metal, no strain reliefs


Silicone-coated (smooth), thick, semi-soft, mildly bent


TPE, 45° angled, long, stiff strain relief

Comfort & Fit

I'm not really sure what to think about this design. It's unique on the one hand, but isn't truly practical on the other. Initially, they are quite comfortable, almost genius. But after a while of use, you might feel slight discomfort because of the edged housings pressing against your ear.

Lows / Bass

The bass is more than enough for vocal-oriented music, as it's warm and punchy. However, it lacks depth, thus does nothing impressive when it comes to electronic music. Some upper-bass leakage into the mids causes vocals to sound tubby, overblown with bass.

Mids / Vocals

Quite excellent, slightly overemphasized mids and vocals. Warm but darkish. There's just something dirty about how the mids, along with the highs, sound. It's almost like there's a tubby/radio-like effect on the vocals.

Highs / Treble

The highs are loud but gentle, although have somewhat darker tone than I expected. Compared to brighter earphones, like boarseman CX98 and even neutral earphones like the TinAudio T515, the YSP04 highs fail to impress when it comes to vividness and clarity.

Frequency Response

Published on 2017-04-04 11:03:17 (GMT)