Question about Denon AVR-2803 Receiver

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Problem when switching on Denon AVR 2803

Have owned amp for 5 years. When switching on using remote control I now hear a very slight 'ber dum' sound. This is a very intermittant problem that occurs about 1 in every 8 switch ons.

Have recently added a Blu Ray player to my set up which is connected by way of an optical cable. My previous DVD player was connected in the same way. My DVD recorder is connected by coaxial cable.

Any advice would be much appreciated.

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The sound you describe is usually a mechanical noise from the transformer/case work. Home theater amps tend to have quite large transformer in what is, due mainly to its size, a rattly cabinet.

Over time, the lamination inside the transformer can loosen which could explain why it has only just started doing.

Alternatively, one assumes you moved the amp when connecting the new kit? This may have let the case work rest in a new way which is proving susceptible to relaying the vibration caused by the transformer as an audible noise on switch on.

Posted on Feb 16, 2009

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