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Ever hear the "Maggie Scream"?

Ok, so I got a bit dramatic in my title. However, the phenomenon is real. It's happening to my Magnepan 1.6's, which are biamped at 200 wpc. So, 400w into each speaker.
When I power down the system, about 20 seconds later, there is a pronounced, but not loud, electronic sound, which starts out high pitch and slowly drops until very low, then dies. Like the speaker itself is powering down.
The sound is from the SPEAKER (I know someone is going to say, 'are you sure it's the speaker, and not some other piece of electronics?') Has anyone else encountered this phenomenon, and what is it? Is this the amps powering down?
I'm assuming I'm not hurting the equipment this way; I've had this sound in the speakers for months.
douglas_schroeder

Showing 1 response by kkm

kkm
124 posts
 
It's your electronics, to prove to yourself, unplug speaker wire then power down, if it screams, its possess.

Most likely, it could be the sound of your caps discharging?

To see if its your pre, turn off the pre first, then wait and listen, if nothing, then turn off your amp and listen. What you are hearing shouldn't be harmful unless it is really loud. LEt us know what you find out.
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