In my experience, Shindo, Jadis (at least the JP200 I own, though my older JP80 was not nearly as extended in the highs or transparent) and the best VAC preamps have these qualities. The Shindo preamps are the first I have heard that have made me consider selling my JP200 (in large part in order to have one box instead of 4, but in order for me to consider the change they had to match the Jadis from a sonic perspective as well), though they won't work in my current setup, as they aren't really intended for driving a signal through 40 feet of interconnects.
