Question about NAD C270 2-Channel Amplifier

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Nad c270 buzzing in amp

When my amp is on it has this buzzing sound from inside does not effect sound or come through speakers just really annoying is there any chance this is fixable possible internal up grades

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  • witchfinderg Feb 16, 2009

    thank you the noise is just lightly heard when music is not being played just don,t want a fire or any thing.

  • guyx May 16, 2009

    Hi. Precisely the same issue. This amp, also a C270, has never before been intrinsically audible.

    I have read that the probability is that capacitors need replacement.

    Ill take it in next week and have it looked at. These amplifiers are now a few years old, and some degradation is likely.



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The buzzing is coming from the transformer. It is almost expected of an amplifier of this size, that the transformer (a large one) will excite the resonance of the casework and make some noise.

Posted on Feb 16, 2009


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