Hi, ive had this receiver for quite a while now. The problem is that the 2 rear speakers seem to crackle alot, but its not that much of a crackle because it makes all the voices squeeky too. Originally i thought it was a speaker problem, maybe it couldnt handle the output...but today i managed to borrow another speaker and decided to test it out. I swapped the speakers over and wired it all up again. But still it has the same problem. I now am considering it being the actual receiver or maybe something i have set up wrong. If anyone else has the same receiver or may know why its doing this to the rear speakers then please tell me what i can do to try fix it.