Hello, the make is Pioneer, and the model is the SA-510 (I guess that's the model?)Anyway, the right speaker volume is low and fuzzy, but it's not the speaker; I tried another set and the problem persists. This leads me to believe the input in the stereo is messed up somehow. I've tried two pairs of wires, and again, the speakers continues to malfunction. Any ideas? Thanks a lot. P.S. It's not the speaker balance knob, I already checked that.