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When switching on system, it makes loud buzzing sound from amplifier? UK 240v

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Unplug everything apart from the speakers that is plugged in to the amp and check the wiring of all the connectors. If the buzzing stops when you do so then it is most likely one of the input connectors or cables causing the problem and it is most likely that the shield or earthing wire in one of those cables is aft faulty and needs repairing or replacing. If the buzzing continues try switching the input selector to something else to see if it disappears. If it does then the input channel that causes the buzzing may be faulty and need repairing and if it does not then the amp itself has an issue and will need repairing. In this case it may be a faulty power supply, preamp or main amp module especially if it comes from both or all channels.

Posted on Oct 06, 2009

Testimonial: "Thanks. It looks like a major fault in the main amp unit."

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