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Michal Panufnik

Michal Panufnik

I built my Zen (and Bride of Zen) a year ago. Now, Im sill impressed by this sound. Its really… More...
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Thomas Chao

Thomas Chao

My DIY Project I owned a commercial Amplifier 3 and love the sound of it. I started the DIY because… More...

The Pass A-40 Power Amplifier — Nelson Pass / 2000

FLATTERED BY THE opportunity to publish a project circuit, the designer is often beset by seemingly contradictory considerations. On the one hand, it is tempting to design a complex circuit as a demonstration of technical prowess; an amplifier with large numbers of esoteric components performing obscure functions. Such an amplifier might be a smorgasbord of electronic technique, featuring class A operation, cascoding, constant current sources, current mirrors, and extra-loop error correction. It would be fascinating to build and perhaps would also sound good. On the other hand, complexity is not a good end in itself and a much simpler circuit… More...

Amp Camp Project — Pass DIY / 2016

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