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In Reply to: RE: Battery Power Supply for Preamp posted by Tubenstein on January 26, 2025 at 00:36:45
What preamp?What cawson@onetel.com said but be warned that batteries for audio gear can be a pain in the ass to deal with unless you enjoy that sort of thing.
I ran a couple 12v batteries in series on a phono preamp. Meh. It was fun but it's not like audio manufacturers go out of their way to make crappy power supplies. Using batteries or a linear power supply of one's choice is popular among audiophiles because it is brain dead simple. And if you do such a thing you MUST hear a difference or you just admitted to yoursel that it was a waste of time.
But who knows... if your present power supply can be improved on a set of batteries might be better.
Two 12V batteries on my phono preamp about 15 years ago
Edits: 01/27/25Follow Ups:
So are you saying that modern switch mode power supplies don't produce unwanted noise? They sure used to.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
I didn't say anything about switch mode power supplies in my post. My Graham Slee phono preamp came with the PSU1 linear supply.
But since you brought it up, as G Squared said, it depends on the power supply. Some of the quietest measured preamps and amps use switch mode power supplies. [P.S. Not all switch mode power supplies are cheap wall warts]
.
Have Fun and Enjoy the Music
"Still Working the Problem"
All depends on the design and application.
Gsquared
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