Ok, I have a Wetsounds XS-10FA Sub and a Cadence SQA-5001. I am having some kind of wiring problem I guess, because when I turn it on, nothing happens. I tried unplugging the RCA cables and when I unplugged one of them the sub started working. But it had no beat, it was just continuously on. So, if only one of the RCA cables was hooked up to the cd player it would be constantly on, but if they are both plugged in, then the sub will not do anything. Here is how I have the sub hooked to the amp.