Receiver problem??

[rhaeckl]

thank you for all the help. At this point I think I will just live with the problem until the new year and then buy a new unit like I want too. Thanks again for all the great tips and advice.

 

[zumbo]

thank you for all the help. At this point I think I will just live with the problem until the new year and then buy a new unit like I want too. Thanks again for all the great tips and advice.

It is probably not that expensive to repair. I don't know if it is the best idea to continue to send that signal through your speakers.

 

[TLS Guy]

Impossible to predict

if that's what you think is wrong, is that the sort of thing that will get worse with time or just stay the same until I choose to fix the problem or replace the receiver? I have been thinking about replacing the Denon, so perhaps this will just force the issue, but then there speakers and well you know.....

Power supplies becoming noisy on switch on are quite common. There are a number of causes. Sometimes the problem does not progress over many years, and at other times progress to serious failure over a short period of time, and of course every time course in between.

 

[TLS Guy]

Doubt speakers at risk

It is probably not that expensive to repair. I don't know if it is the best idea to continue to send that signal through your speakers.

The only amplifier faults that fry speakers are loud high frequency oscillations. They fry the tweeters. Another is loud turn on thumps, which can make voice coil woofers come out of the magnetic gap and damage the voice coil. The worst cases of speaker failure are due to huge DC offset at the output when a power transistor fails. This usually welds the voice coil turns together, or burns out the voice coil of the woofer. Good equipment should always have a speaker protection circuit on the amp boards, that activates immediately in the event of this catastrophic failure, to prevent speaker damage. Power transistor failure is one of the most common failures in transistor amplifiers.

I doubt your problem is putting your speakers at risk.