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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

Re: There are 3 kinds of passive preamps (at least)

Hello Pete
There are no commercial manufacturers of autoformer preamps. I made a few for friends, they remain good friends (that's a good sign).
I know an audiophile in NYC who made a beatiful preamp with Perspeex and aluminum sheets(he posted pictures on AA).
I believe that several members of Joelist (the Sound Practices gang) have made their own preamps based on Dave Slagle's autoformers.
Dave usually has one or two sets available for trial (no affiliation except admiration for his inventiveness)
For more details, send me an email.
Best wishes
Carlos


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