I have a Polk PSW1200 subwoofer. I've had it for about 4-5 years now and its been awesome. This weekend it just all of a sudden stopped working. So I called Polk, and as I guessed, they said it was probably just a blown fuse. (just in case this matters, it’s a 250v, 5mm x 20mm, 5 amp, slow acting fuse)

So I hit the Depot and got a new fuse. Threw it in there and it worked perfectly. For a while anyway. Now its blown again (i'm assuming, but i haven't opened it up just yet to check to make 100% sure).

Does anyone have any idea why this would keep happening? I've tried 2 different power supplies (the newest one i just bought being a Monster HTS800) and it still happened.

If anyone has any idea, I would be forever greatful. I really love this sub and I don't want to have to give up on it.

Thanks,

Joe

How is the sub connected? Check the connections. Has the level changed or been changed inadvertently. If it works for "a while" I would believe that you might be driving it too hard.