Well, early tests are not promising. I haven't had much of a chance to do anything with it, but I just hooked up the new isolator and I'm getting...nothing. No hum! Great! ...but nothing else either.

I have the volume on the amp maxed out, and I've adjusted the receiver's sub volume up to max, too. With the isolator in the loop I got nothing. I didn't listen too carefully though as I've only had about five minutes all day to play with it (doing sound system troubleshooting is challenging with work and sleeping kids in the mix).

Anyway, I'm clearly disappointed and have no idea what to try next.