The Accuphase looks like an implementation of the Pure Power idea, one I first saw from the guy who makes Jensen audio transformers.
It's very neat and very efficient.
It tracks the incoming waveform and actively corrects it. As a result, it is high current, and high efficiency, without resorting to an AC--> DC --> AC reconstruction process like PS Audio uses.
I can't tell you how it sounds, but if it has the Accuphase label on it in the US I'm sure it's expensive as hell. :)
I'm not sure if PurePower is still selling or not, but if you are interested in that technology they are worth looking up.
It's very neat and very efficient.
It tracks the incoming waveform and actively corrects it. As a result, it is high current, and high efficiency, without resorting to an AC--> DC --> AC reconstruction process like PS Audio uses.
I can't tell you how it sounds, but if it has the Accuphase label on it in the US I'm sure it's expensive as hell. :)
I'm not sure if PurePower is still selling or not, but if you are interested in that technology they are worth looking up.