Well I've had my Tempest sub over a week now. Still smiling except for one thing. The AVA250 when set on auto doesn't want to kick in when I'm watching DSS (hooked up by an optical cable to my receiver) at a normal just sitting to watch TV level. If I turn the sub channel on my receiver up and go about 10 numbers higher than I want to on my Onkyo amp then it cuts in. I did only have the single sub preout plugged into one of the L/R line level inputs on the plate amp. So today I went and bought a RCA female to 2 RCA male Y splitter and hooked up both the L/R line level inputs on the plate amp. Now I don't have to turn the receiver up as much to get it to kick in, but at my normal DSS levels it still just doesn't want to kick in. The strangest part to me, is when I go put the amp power switch to the on position (instead of auto). The sub is making quite a bit noise. Switch it back to the auto, and eventually the sub cuts out again. So there is a signal to be produced, it just doesn't seem to want to trip the auto detect circuit. Anyone else have this problem or a solution? Or is my AVA250 defective?