I have this listed as parts but it seems to be all working. It has outputs I'm not familiar with like v out or n out to scope,fixed and variable. I tested all outputs and the strongest was 4 channel combined. The others have low audio output and must work so e how with other components. The bus are all working, I tested FM channela strength meter and the stereo light appears if the channel is strong enough. It's very cool looking and very very clean. I don't offer returns shipping on this, sold as is