Wondering if anyone can help? I have a Sunfire True Subwoofer Jr. I've had it for years without any problems. The other day I unplugged it to put the ole tree up. After plugging it back in ....... ........ ........ nothing! The power light comes on and everything seems ok, but no sound at all.

I trouble shot cables, and everything else regarding other components. Then checked the A.C. line fuse (no problem). I opened up the sub and found 2 more 4 Amp fuses on the circuit board. I replaced both of those fuses and upon power up - they blew again. I'm running the sub behind a 15 Amp surge protector and now I don't know what to do. Anyone have any ideas? Thanks!