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Solid State Guitar Amp Forum | DIY Guitar Amplifiers

Solid State Amplifiers => The Newcomer's Forum => Topic started by: lepercon on April 24, 2011, 05:53:03 PM

Title: Acoustic 123 huge thump when turned on or off
Post by: lepercon on April 24, 2011, 05:53:03 PM
Guys-
I have a nice thump through the speaker when this amp is turned on/off whether the volume is turned all the way down or not. I am thinking this is power supply cap issue?
Help!
Mike
Title: Re: Acoustic 123 huge thump when turned on or off
Post by: J M Fahey on April 25, 2011, 06:34:58 AM
No, it's normal, don't worry.
Title: Re: Acoustic 123 huge thump when turned on or off
Post by: joecool85 on April 25, 2011, 11:11:49 AM
It's probably normal, how loud is the thump?  If it is very loud then it could be an issue, if it is only as loud as someone talking or so then it's not a problem (other than annoying).
Title: Re: Acoustic 123 huge thump when turned on or off
Post by: LJN on April 27, 2011, 01:55:40 AM
Joe is right. Myself, I couldn't tell you the cause, but I know that I've had a few amps that did that. Usually, it's not a problem. If you hear any noise like a loud hum, or buzzing sound, that's something to worry about.
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