GTO rear speakers are dead (HELP)

[Raoul-Duke]

soo i was down at college visiting my buddy this weekend listening to motley crue very loud when my back rear speakers stopped working..i noticed it the day after cause i wasnt in the right state of mind at the time..anywho i checked the fuse in the amp and its ok....there not blown out cause theres no sound at all. and it would crackle and sound like shit if they were in fact blown..but my mids and fronts are fine but have no bass at all...if anyone has any ideas or info that can help i will be GREATLY appreciated...

[the727kid]

Unplug them and put a 9volt battery to the + and - on the speakers, see if they pop in and out to check if they are blown. A completely blown speaker won't make any noise, it won't move at all.