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Why do my Klipsch Reference R-40PM turn off after a while?

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001 has the right answer. I would guess the output level is too low to be detected by the circuitry, so the unit goes into a standby mode.


To prove the theory, increase the volume and see if the problem remains. I had something similar occur with an SAS Bazooka car subwoofer;

it needed a sufficient incoming signal level to turn on. If I turned down the volume the subwoofer would go into a standby mode.

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