Master volume knob needs some attention, it is a bit loose and is basically jumping from 10% to 50% if it is moved just a tiny bit. Also the line in port is damaged but still in working condition Other than that amp is in really good shape. It comes with power supply cable and multimedia cable to connect it with the pc The amp can be heard here: https://youtu.be/UHLAM_BIUYY?is=mf5WLHYTviuPHpSc