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Old 6th January 2009, 10:48 AM   #1
ljk11 is offline ljk11  Trinidad and Tobago
diyAudio Member
 
Join Date: Feb 2005
Location: Port of Spain
Default switch on/off preamp thump

I recently built a Welborne Labs ultrapath preamp,
sounds very good except there is a big thump when powering on/off

Its battery powered at only 24v so I am at a lost to any switching noise etc.

Any suggestions ?
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