Volume 4

The case for subjective listening tests
The “Terrible Twins” – a push-pull amplifier with solid state pentodes

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Volume 2

Zen -> Cen -> Sen - Evolution of a Minimalistic IV Conversion Circuit
Simple Loudspeaker Correction Filters

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Volume 0

The Mini-Simplex
STEREO - From live to recorded and reproduced - What does it take?

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