Noise occurs while using the Right speaker wire output (1red+1black) from Pioneer VSX-d513s receiver.?

Question

This happens with any speaker I use and with either channel A or B. It does not happen using the same speaker on the L speaker output or even the rear or centre speaker outputs. Only occurs with the Right speaker output. Does anyone know what causes this?

Answer 1

noise
hum, crackling, whistling, sputtering.
each one has a different cause.
does it change with volume level or control operation?
that would narrow it down.

causes
capacitor, resistor, transistor, mechanical volume control, loose wire, IC.