What Bob Carver did in his challenge was to engineer an amp that copied to the best he could the transfer function of more expensive high end amps that people really liked. And he did it well.
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20 Year Old Amplifiers compared to 2017
Just a random thought, but I’m curious just how well the state of the art solid-state amplifiers from 20 years ago compare to some of today’s better offerings. For example, what does a pair of Mark Levinson 33Hs or a Krell FPB 600 sound like if compared to the latest offerings from Pass Labs or Ayre Acoustics?