THat PS Audio HCA-2 was PS audio's first foray into Class D amplification. Although it had garnered some reviews in its early life, it was nothing to write home about as it was summarily dumped into the second hand market once its hype had passed. They must have released it in the early 2000s.
Their GCC/GCA line with the gaincell technology seems to have completed the maturation of their Class D designs and are hitting their used market as we speak. It seems as if the GCC line had more of the power and neutrality that is commonly associated with what you read about Class D amps that are "bulletproof" in reliability.
Their newer line, with the 1/2 size chassis do not seem to impress as you see them dumped into the second hand market without really much time in people's systems. For the choice of words that people use to describe the smaller digitals, they do not elicit much praise.
Of course, your miles might vary.
PS: I own a Henry Ho H20 amp, the S250 and these amps are bloody incredible even their non signature versions.
Their GCC/GCA line with the gaincell technology seems to have completed the maturation of their Class D designs and are hitting their used market as we speak. It seems as if the GCC line had more of the power and neutrality that is commonly associated with what you read about Class D amps that are "bulletproof" in reliability.
Their newer line, with the 1/2 size chassis do not seem to impress as you see them dumped into the second hand market without really much time in people's systems. For the choice of words that people use to describe the smaller digitals, they do not elicit much praise.
Of course, your miles might vary.
PS: I own a Henry Ho H20 amp, the S250 and these amps are bloody incredible even their non signature versions.