The amplifier is very good for the money it costs. It just had a problem with one LED of the VU meter, plus compared to a Nikko integrated 2×60, I estimate it to be around 2×180, maybe I'm saying too much. But it has a quality and full sound. It plays with two-way 120-watt speakers, and with a self-amplified Crystal Audio 170-watt subwoofer, it fills a satisfactory unified space of forty square meters. And at maximum volume, it is very satisfactory in terms of distortion. Infinitely better than a Skytec SPL1000 that I tried with the same speaker set. Also, relatively quiet operation and no temperature problems after twelve hours of operation at half volume. Very satisfied for the amount I spent.