Hi there, recently, my home theatre receiver had been acting up. I don't know the exact model number, but it is a pioneer if that helps. First off, whenever something would happen to the right or sometimes behind the central focus (say a character in a video game) the sound would be greatly impaired...sometimes nonexistent. Then recently, the receiver has begun shutting off with an "overload" message. I did a speaker set up and found that all the speakers sound like they should be working properly except for the front left which seems to be causing the overload. I've ruled out the wire as the problem and its not the speaker itself (I've tried switching it all around) so I guess my question is: what could be causing this problem. Every time I try to change the decibel level on the left speaker the receiver shuts off with that overload message. Is there any way to fix this? Do I have to bring the receiver in for repairs and if so how much does that usually cost? Any help would be great, thanks !