These amplifiers are excellent. 2x12W real audio power (thermal or average power) , low distortion, low noise, and not lastly, very efficient. Long time ago to do such amply you need quite a heatsink.. This version is a bit better for average user because they have a preamp, but I loved more the sound of XH-M189. Maybe it's just an impression, I can't really tell.
Very fast postage, thank you! Great amplifier for the price! Not 120W, around 20W RMS with 24V supply. correct sound, not to much distortion, S/N is good. Speaker click by power on-off, not to bad.