Fuse for Bose sub?

My dad blew the fuse in my Bose sub cause it don't work at all, and we can't find it. We know its not in the fuse box b/c we looked and none of them are for that, but there is some sorta chip with a box thing on it connected to the sub, is that it? Someone please help me locate it, thanx.

if there is some sort of amp running to the sub, there should be a fuse in the line and in the amp, at least thats how mine is. im not to sure bout the bose sub, but i wouldnt think that it should be that much different