PSB Alpha Sub Zero Subwoofer "amp blow fuse turn volume" Questions

amp on this model. There is probably a circuit design error which causes some components to blow and as far as I've read, fixing it (or replacing the fuse) won't make the problem go away for long. Try

blow the fuse. Gets louder when rear volume control is turned up. Power supply (with caps,diodes, and some blue plastic sealed thing) is all mounted on one board, part number "SUB-12". Where can I buy

...amp. Hi, cases like that always comes u. Earlier you said just replaced it, that's not too good for anew monitor speaker. You could test the fuse inside the speaker if it's still working, might be ...

...amp. Something getting hot probably means something shorted out. You probably know that since you replaced the fuses already... . Can you give me some idea of what you do and do not know about ...