Before commenting on the specifications and performance of the Powerbloc2 power amplifier from Legacy Audio, let me first establish some historical perspective. Back in the late 1970s when I was a graduate student with a growing family, a passion for audio, and a limited budget, Sony released a revolutionary pulse width modulation (βClass D)β power amplifier, the TA-N88B, which was the first such amp to be commercially available. Through a simple twist of fate, I happened to run across a brand-new TA-N88B that an audio store in the area was selling for somewhere around half the standard retail price of $1,200 (which would be more than $4,000 in 2020 dollars). Although at the time I did not have an extra $600 lying around, I just had to have that amp, so I wracked my little brain to come up with a way to get it. (A legal way, that is β breaking into the store in the wee hours of the morning was not a viable option.)