I already ran a search and didn't find what I was looking for.
Anyhow, I just got my Dayton 120 and it pops. I have a network media controller hooked up via toslink and it pops when I switch tracks. It also pops when I change scenes on a DVD and it pops when you turn the amp on or off.
It does it in auto or on mode. The phase is set to normal, the frequency is set to 80Hz, and the level is set to 75%.
Is this normal? I've never had a subwoofer do this except when turning on or off.