This is a nice cheap amp for the money. My only concern is that is sends power back into my JBL PRV-175 blue remote antenna/amp turn on. I can have the radio off and the screen will illuminate. I tried using a diode to have the current go out to amp and not from amp to radio. It didn’t work. Maybe the diode wasn’t strong enough. But I shouldn’t have to do that. Next thing I’m going to have to do is just put the amp on a relay. I read somewhere that this amp blew up their radio. I pull the fuse on my amp when not in use.