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Help with power amp...
Dear Group...
I repaired one power DENON amplifier (about 2 x 200 Watts) Everything is OK, but if I turn the volume on higher level (both channels) - I have hum. If turn every channel separate (on preamp balance) - there is no problem. Problem is present only when you drive both - left and right channels, or if you switch off the light in room. Funny ? How repair this problem Thanks Boris |
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