I took down my 5.1 system for painting. Well, fronts and rears. Paint is all done and only the center and the sub work. I have a Yamaha AVR. Is it possible the wires were shorted out and wreaked something?
Try using different wires, or hooking the fronts to the center (one at a time) to see if it is the speakers. Double check the wires, make sure no opens or shorts, and make sure some AVR setting did not get inadvertently changed (like fronts turned off).
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