04-27-2020, 03:38 PM
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Member
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Join Date: Jan 2011
Posts: 60
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Quote:
Originally Posted by oldominion
I remain interested in this modification and am surprised more people haven't weighed in. It appears to me that the unconventional grounding methodology is the cause of hum issues in a measurable number of Inspire preamps, especially with those of us who have more sensitive speakers.
I'd like to know more. In my 3.1 preamp, hum is a problem. As detailed on these pages, I've come at it from a number of different angles. I'm able to mitigate the problem with tube swapping, etc., but I cannot get rid of it. And I would like to.
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What amp are you using with it?
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