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XXHighEnd > Ultimate Audio Playback > Chatter and forum related stuff > DC on the mains
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Author Topic: DC on the mains  (Read 8216 times)
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BrianG
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« on: April 12, 2011, 10:44:54 am »
I have DC on my mains supply  Shocked   

This is causing by big new amp to buzz   WTF !

So I have just ordered the parts to build a DC blocker based on the Bryston amp schematic  Rules

I'll let you know how I get on ......
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January 5, 2011
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manisandher
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« Reply #1 on: April 12, 2011, 11:19:25 am »
Hi Brian,

I'm assuming your big new amp is a Sanders ESL? I also had quite loud buzzing from my Sanders Magtech amp when I first got it and was using it with my regular house mains. But the buzzing has totally gone since I installed my new isolated mains circuit - the amp is now totally, totally silent (and sounding wonderful).

If your DC blocker doesn't work, perhaps you'll need to think about installing an isolated mains circuit... I've found the sonic improvements to be quite substantial.

Mani.
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BrianG
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« Reply #2 on: April 20, 2011, 12:34:00 am »
Well that didn't work  unhappy

Went progressively up to 3 volts and still the dreaded hum so not dc then.... scratching
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January 5, 2011
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