2. amps-preamps
  3. 1073934156

strange sound

I am getting a strange sound from my speakers when I power down my system. I shut everything down (amp, preamp and source) and about 15-20 seconds after that, a sound starts high in pitch and slowly drops in pitch (kind of like a bomb falling from the sky in cartoons) until it stops about 15-20 seconds later. It happens every time I power down. I have no other strange sounds or problems at any time during power up or during listening.

Does anyone know what could be causing this?

Thanks for any insight.
snicka
snicka OP
11 posts
 
Thanks again for your help.

The sound does bother me but not enough to spend a lot of money to fix it.

I do follow the same power up / power down procedure as you described. Actually my Panamax surge suppressor does it automatically for me. It has timed outlets for amps and such.

Thanks.
blueswan
211 posts
 
A timed outlet is not the same as using the power switch. The amp may discharge properly when using its power switch. Try it manually and see what happens.
albertporter's avatar
albertporter
4,949 posts
 
No one ask what your amp was. If tube, there are EL 34 types that make the sound you describe. If transistor, you likely have the answer in the posts above.
snicka OP
11 posts
 
I tried it manually and it does the same thing.

It is not a tube amp.

Thanks for the input.
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