The new Cavalli Liquid Tungsten prototype. I hope this doesn't sound like a lot of hype here, but I gotta say, I think this might be the best amp I've ever heard. It's hard to really express everything that is going right here, but I'm going to give it a shot.
A few observations:
Zero, I mean zero harshness from the HD800 whatsoever. The soundstage is crazy huge - it has no boarders. Sounds just come flying at you from space, even more so than the liquid gold. Soundstage depth stacks on the X & Y plane completely freely.
The bass is super tight and organic. I absolutely love the presentation of the upright bass. Clean woody tone there with really nice weight. Popped on the HE1000 & the HE-6 and the thump was insane! It just digs down so far.
Drives the HE-6 like a dream. Gorgeous and pure up and down throughout the frequency range.
Really struggling to find a flaw with this thing. This thing just plain rocks. I don't know when this thing is coming out, but I want it bad! Just awesome.