hi, I have a Jvc RX-6000VBK receiver. and it has both A and B speaker inputs. but the thing is, when I hook up my B speakers I only get sound from my right A speaker. and when I have it only on the A speakers I can turn it up to volume 30, than it overloads on me. but it only overloads on the A speakers when I have the B speakers hooked up. thanks to anyone who can help.