It's been repeatedly reported by owners of various t-amps, such as those by Virtue Audio and Trends, that they can do a nice job powering the HE6s and are a cost effective solution. It's also been repeatedly reported that folks have gotten very nice results running them off of modestly priced amps and receivers. It'd be interesting to hear reports about using them with more highly refined speaker amps (though HE6 prototypes were shown at national meets by Fang driving them with a Threshold amp). At can jam san jose there was a k1000 room and the hit of this subspeciality area was, iirc, a $7k Zanden tube amp running the K1000s to performance levels never heard before by devotees of that can.
A few folks have contemplated the following amp as a compact, inexpensive solution to driving the HE6s, and it indeed looks intriguing. It's amongst the lowest cost amps yet cited for this application, is currently on sale, and comes with a 30 day trial so there seems little risk here if someone wants to give it a try:
Edited by daveDerek - 7/8/12 at 12:06pm