Received mine
24v 10a power supply, with 10db attenuators max volume is low compared to my BT20A (older version) much more without, a little sparkle sound when using my 24v power supply, power was on from the psu when connected to the amp that was off
No pop sound turning it on,off
80's pop not much bass,more bass oriented or just edm,dance music theres more bass
Treble centered can be to much, def not neutral when tone controls at 12 o'clock or center, surprised i have to for my personally taste lower the highs more than the bass, trebles just under 9 o'clcok, bass 10 o'clock, on my BT20A hight was ever so slightly higher around 11 o'clock
12 o'clock clean and loud with a 24v 10a laptop power brick and dynaudio emit m10 (no attenuators) 11 o'clock seems perfectly loud for nearfield,wouldn't like to use all of the clean power it's got with 48v with my dynaudios, no noise playing music that would feel anoying both channels seems to be equal loud within low tolerances (slight difference when amirm measured it)
Clear midrange, somewhat energetic highs out of the box, good punchy,tight, mabye a little dry, not super deep bass,wider soundstage,depth than my bt20a, good dynamics,punch in the lows playing the spirit of dun dun by steve smith, nothing like a big amp and thigh sounding speakers with 12" pa subs,bass (could be big jbl tower speakers) but stil good,musical
Knobs are black,the amp is dark grey or a lighter nuance of black,not the same as the knobs,led on is not noticeable from the side and are very weak (not at all annoying).
Highly recommended
Glad i didn't buy the Fosi audio V3 although it from audiophonics comes with a 48v power supply, i think the sound is out of balance for my taste and speakers, because of how i have adjusted the treble,bass, i don't think the v3 would have the same level of highs and lows as i have adjusted it to, neutral might be a different to what i have adjusted and also to how the v3 sounds