Hey guys, I just unboxed the Kbear KS1 (CAD $25) and spent some time listening to them and A/B'ing with my other IEMs.
So finally as promised (
@WendyLi ) here are my first impressions.
SOUND
Overall I'd describe the sound as warm v-shaped (or L-shaped).
Dunno what people are talking about with these having "hollow mids", that is simply the opposite case here. If you want an example of "hollow mids", listen to the TRN M10. The mids on the KS1 are clearly the star of the show. They are upfront, full-bodied and show excellent transparency throughout the entire mid-range.
The tonality of the mid-range is spot-on and honestly does not differ much from the mid-range on my $150 TRI I3. Personally I think KBear nailed it with the mids.
The low-end is obviously tuned towards fun and boasts an energetic mid-bass response that provides plenty of warmth to the sound without ever bleeding into the mids. The "shape" of the bass is leaning towards plump. EDM lovers will appreciate the bass on the KS1. Again, nothing to complain here.
Everything beyond the lows and mids, however, are mediocre. High-mids are clear and provide clarity to the sound, but their tonality becomes pretty harsh when you crank up the volume. Treble is there, but it is comparatively recessed and only provides rudimentary detail.
SEPERATION
Both instrument and frequency separation are actually so well done on here. The lows are very well separated from the mids, and the vocals are very well separated from other instruments that play within the tenor range.
SOUNDSTAGE
I was expecting a congested soundstage, but thankfully there is a noticeable sense of three-dimensional staging. It is that sort of spherical stage where sounds just float around your head. Not far-reaching, never "in-your-ear", but just floating a one or two inches away from your head. I think some people refer to this as a "nearfield" stage? Idk.
VERDICT
Overall I was not disappointed by the KS1. I'd rec them solely for the mids. Thankfully Kbear played it safe by avoiding any peaky treble and decided to go for a more bass and mid focused sound (which is what most casual users want). These are definitely not bad by any means, but because I am an old school chi-fier who hasn't listened to any of the latest budget chi-fi, I can't give any relevant verdict or comparison, at least for now. If there was anything Kbear should change though, it should be the price as currently CAD $25 isn't that competitive (within the Aliexpress chi-fi market). IMO it's better to lower the price than to improve the sound, because the sound is already acceptable enough for most casual users.