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Amp turn off , high pitch

Hope someone has some insight. I have a Acurus A200x3 which I use for my HT. Recently, when I turn it off, there's silence, but then 2 sec. later I hear a high pitch noise from my center and surrounds that last for about 4 secs. Is this a prelude to something worst about to happen. It's not very loud, just botherome that it is not normal. Thanks.


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Topic - Amp turn off , high pitch - KKM 16:25:47 01/16/06 (7)


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