Strange that F is complaining about flow and sustain when for years it seemed he was on board with the big SS amps and audiophile skeleton sound. However, he does provide enough info so that those who really like this kind of sound could tell that the Boulders would be for them. He gives enough info for the reader to buy into the reader's own tastes, even if F's present "state of taste" is currently different.
I think my 26 DHT tube/mercury vapor rectified driver on old VFETs sounds a lot better than the big Ypsilon amps I have heard at shows, which still have that tinge of SS dryness and grit, in spite of the tube rectified pentode inputs.
Getting a combo of speed, dynamics, detail WITH tonal fullness, flow and sustain is a daunting combination of traits for an amplifier.
I think my 26 DHT tube/mercury vapor rectified driver on old VFETs sounds a lot better than the big Ypsilon amps I have heard at shows, which still have that tinge of SS dryness and grit, in spite of the tube rectified pentode inputs.
Getting a combo of speed, dynamics, detail WITH tonal fullness, flow and sustain is a daunting combination of traits for an amplifier.