Report "I have an 800 watt Sony Xplode amp. Everything looks fine, no red light or failure msg on my radio. It was working fine and my subs were hitting hard with no issues. I just bought it used and thought let's crank it up and see what it will do. It quit producing any sound at all. Again I have power, no red light, or any other sign of problems. Why would I be not getting any sound at all from it? I haven't tried driving another speaker with it yet to see if I completely blew the sub, but I am having a similar problem with a 500 watt Kicker that I replaced with this one"