A little over a year ago I purchased a Polk PSW10 for my HT. I attempted to hook it up via pre-out from my 5 year old Pioneer receiver, but couldn't get any audio out of it, so I wired the front L + R speakers through it and used it that way.
I just purchased a Yamaha RX-V673 receiver, and am using the pre-out from there to the PSW10. Same thing. When doing manual audio tests, I can get audio out of the subwoofer when hooked up via pre-out, however when a game or movie is on, there's no sound at all. Has anyone encountered this problem before? Am I doing something wrong? Going from Sub 1 on my Yamaha to the L input on my subwoofer.