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I bought a NAD 3130 amplifier from ebay. Usually it sounds very good, but I do get static in the speakers on a regular basis, maybe 1/3rd of the time. I know that my volume control does make static sometimes when I adjust it. My question is, if I'm getting static even if I haven't touched the volume control, can it still be due to that, or is it something else, and if so, what might it be? I have already cleaned all connectors with Radio Shack contact cleaner. Thanks for your input.
Follow Ups:
That's propbably capacitors wearing out - they do have a life span which varies on the environment they have been in. Open the unit and see if any of the 'goo' has leaked out of the capacitors. Don't confuse it with the glue NADs use to stop the caps from vibrating. The 'goo' would be green/blue and acrid smelling.The other possibility is not enough cooling - that the unit is not properly ventilated and over heating.
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