Last weekend (March 3, 2013) my Polk DSWPro 500 abruptly stopped working. Now when I say abruptly stopped, I don't mean that the sub was in use and then stopped. I had just turned my stereo on and noticed that the music sounded different. That's when I noticed no lights on my subs were illuminated.
Here's what I've tried:
1. Plugged the sub into a different outlet, in a different room. Nothing.
2. Replaced the fuse below the electrical cord receptacle on the back, even though the factory fuse is not burnt. Still nothing.
Yes the main AC switch is in the ON position. The other control switch has always been set to Auto-on, rather than Standby or On.
Polk Audio Customer Service has been less than helpful and hasn't offered any possible causes or solutions. So I'm not too pleased with them at the moment. My guess is that maybe the power supply has gone bad.
Has anyone else experienced this sort of problem?