Question about NAD C720BEE Receiver

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NAD CI 9120 (12 Channel)

Hi there,
I keep losing sound to half the speakers and my red light keeps popping on(protection mode) I turn it off and back on, works for a few minutes then goes back on. I air dusted it out, not sure what else to do.
Call a Tech?
Thank you,
Stephen

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  • 16 Answers

Check all your cables, not likely but just in case.
Try removing all but two. Left and Right. Does it still happen,
If you can identify the speaker channel try swapping the speaker if possible.

It sounds like one of the speakers has an issue, could be a short in a cross over or speaker coil. If true the speaker is drawing too much current and causes the protect circuit to trip.

Depending on the quality either replace the blown speaker driver or purchase new ones.

If the speaker is not the issue it could be an issue with a power amp. Best to take it in for service.

Posted on Apr 03, 2008

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