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Hello, Just obtained a kenwood ka3500. Upon initial testing I have distortion buzz on both channels. Music playing Speaker offset is 9mv 30 mv I removed the case and deoxit all pots and the like and no change. If I turn it up to loud it will cut out. Would this be in the power supply stage...

Hello, This is my first post on this issue so bear with me. I have a hum that I can not narrow down. It only occurs with my eq in the preamp amp loop on the sx850 as a very low faint hum not increasing with volume. All sources disconnected but the c101 and sx850. If I run the eq through...

Hello all, I need some input on what to do to clean up the sound on an onkyo a5. It works both channels, right side crackles when balance is adjusted sure its just the pot. Problem is it is not real clear seams a bit distorted. This is my first vintage amp and want to tune it up. Any thoughts...