Works really good along with my old Kenwood receiver. The addition of a subwoofer makes my old sound systems shine!!!! Now it is 2.1 system! This little amp is compact and enough to drive my 6" passive subwoofer. I just have it cranked halfway and is more than enough to bring those sub-frequencies up to par with the music. Enjoying my music with a new perspective thanks to this little guy. When you get it, don't forget to put the switch in bass mode. Recommended unit!!!!