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Re: Antique Sound Labs Mni-phono Noise

Not being a tube expert (yet :>) what would I swap in for less hiss?

The hum:

It seems all too happy to pass on 60Hz AC to the DC line at high gain. I tried putting a ground defeat plug in - no difference.

I have a PS Audio P600 power supply that can generate wave patterns other than 60Hz and all get passed at high gain. Would putting in a dedicated ground for PS Audio help? Probably not.

What would be the best way to get rid of this completely?



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