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Robert Schryer dives into Bruno Putzeys’ claim that class-A amps have stagnated, with only Nelson Pass responding to defend class-A in this heated debate.
As an audiophile on a journey of perpetually better sound, I was left slightly disconcerted by class-D trailblazer Bruno Putzeys’s assertion, in my previous class-D article, that, as he put it, well-done class-D amplification was now so good that “the amplifier part is basically a solved problem”. I understood the gist of what Bruno meant…
A couple of years ago, a designer of high-end tube equipment said something to me that left such an impact it eventually led me, now that the conditions seem right, to write this article. That mind-bomb was set off when I asked the designer if he’d ever consider making a class-AB amp. Shaking his head,…