I use this amp on time, filter activated on top of yorkville pulse 215 and the sound is ok (it's just the speakers that are a little high in treble) is true ke Lampl little heating, the building is clean and well done, a pleasure to use an amp like this. Ke I think the price is hard to beat. thank you m inter tt to be serious yet affordable, I put 8 / 10 as compared qualitprix EXCELLENT!