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Class D Switching Power Amplifiers and Power D/A conversion

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Old 12th October 2004, 06:59 AM   #1
mattjk is offline mattjk  United States
diyAudio Member
Join Date: Aug 2004
Location: Huntington Beach, Ca
Default Please tell me I am not on drugs...

I had to unplug my zappulse amp for a second... and upon re-powering up, all the detail has come back. What the heck???

I have been disappointed with it lately because it had been sounding very dull, but now it sounds fantastic again.

Anyone else run into this???
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Old 12th October 2004, 07:56 AM   #2
chrisb03 is offline chrisb03  Australia
diyAudio Member
Join Date: Oct 2004
Location: Sydney
Sounds like a static buildup problem. I have had the same issue with my P3A dac when I have taken it to shops with carpet to audition amps. I would have to pull out the power from the back and usually feel a zap, it would work fine again after that. My dac has had some mods done in the power circuit by the guy I bought it from. I will have to check his mods.

You may have a grounding issue.
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