Studio Six is best amp I own and the ONLY one through which I actually enjoyed (a lot) the HD800s. No harshness. They came into their own. In that listening test on a few tracks I preferred the HD800 even to my beloved Audeze. But on all other amps the Audeze is clear winner for my ears.
Thanks for the impressions; will be going head to head with my Taurus before i know it..
Will post back with impressions of it + the X's :)
Look forward to hearing your impressions. My friend Richard Colburn who used to be with Audience is now with Auralic and he has golden ears. I found the studio six comes into its own when some good NOS tubes are in there. Eg mullard 5ar4, bendix 6v6, etc