Hey guys. I noticed the other day my Sub wasnt working. Now I hope its the sub. Cuz its a piece of crap Aiwa sub. Allll my other speakers are good except the cheap sub. I PRAY ITS THE SUB and not my Onkyo 575X. To be sure, how can I check that my Onkyo Sub out is working. I tried putting the volt meter to it and I get some readins, but you never with those things . So I want to be absolutly sure its the sub and not my Reciever. The fuse in the sub is good.