The amps being used are Denon POA 6600A. They are extremely squeaky clean sounding and I think you can actually hear that in the video. There's a shot of some driving my Duettas. Not my cup of tea, but hey, they are powerful.
The Scintillas are shagged, though - the bass panel foam has disintegrated, and someone decided to vacuum the ribbons - not good on an Apogee.
The EAR? Well, small bake off tomorrow with two of the
www.hifipig.com guys coming round. Be interesting to see what they think.
In short, though, it is definately a very interesting circuit. It produces an absolute mass of unforced highly resolved detail. I'm sort of a bit bemused as to where it gets it all from
It also produces a huge walk-in soundstage with great front to back layering.
If there is a weak spot, it probably is in the bass - which isn't the last word in tightness. More speed, control and slam to be had with the Air Tight passive. But you lose out on the qualities identified in the last paragraph.
Like everything, it is a compromise. But it is nonetheless definately without question "up there" in the realm of tube preamps.
More fun to be had tomorrow with the Parasound A21, a mains re-gen that one Pig reviewer thought superior to his PS Audio Powerplant at a total giveaway price, and some acoustic panels.