https://artproaudio.com/product/sla-2-200w-power-amplifier/ Powerful amp suitable for studio monitors or efficient gig speakers. Huge transformer, very well built. I was using for home subwoofers. Zero issues. The fan is quite loud when the amp is working hard but it can easily be modded if it is out in the open at home or in a studio. Scratches to the casing, faceplate looks good.