I recently bought a supercube III but when I plugged it in.......it had no power and since it came without the manual, is it possible that it has a blown fuse? Can someone help me. It doesn't have an off/on switch and the light is off. Have hooked it up but nothing. Any help would be greatly appreciated.

Checked the fuse and looks intact.

If you've verified that the fuse AND power cord (and outlet) are OK, then you're looking at a trip to the shop for your sub. Is it still under warranty?

How do you like your supercube III

Have you tried a dvd or music? It takes a lfe signal to turn it on.