I recently had the pleasure of an in home demo/audition led by Skip of Audio Thesis. Great guy and a truly wonderful experience.
He demoed Mastersound Amplifiers and North Star Design DACs. He also represents Rosso Fiorentino speakers, of which he is really excited. I chose not to listen to them since I didn't want to be overwhelmed with gear.
For those of you interested in Mastersound: I believe Audio Thesis will have some rooms at the Lone Star Audio Fest in Dallas, TX (May 4, 5, and 6).
I was very impressed with my demo of the Mastersound Evolution 845.
Realize this isn't what the OP asked, but I was surprised at how good the the North Star Design Venti DAC was. It is a Sabre 9038 based DAC.