4 ohm speakers with tube amps?

Yes, true. Worthless for my ideal set up. Could you say in general the higher the ohms and db level, then the better the sensitivity and thus less stress on the amp, especially a tube amp. Thus the lower the ohms, the less response from amp, the less finesse. In general. I've heard good things about the Thiels. But i think i found exactly what i'm looking for in the Thor, for a heck of alot less than the Thiels.

I would never pay $2K+ for a 2 way, the Thiel 1.6. With the Thor you get 2 (TWO!) midwoofers/cabinet PLUS a "state of the art" tweeter PLUS one very beautiful cabinet, for less than... $2K. I'll post a review soon.

Yes the Jadis page does say somthing about the fact that even though tube amps are "known" for the problem driving low impedence speakers, not so with their amp design. Though i don't expect the output to be the same as with 6 to 8 ohm speakers. Always a trade off somewhere in audio, i definetly want the Thor MTM W18+T25 speaker, even if it meant the parting with the Jadis sound.

Just took a closer look at the amp, on top of the gold colored plate on the output transformer, 0-4-8, so like the Jadis page said, engineered for any speaker load. Which makes me even more impressed with this amp.

Elevick, sorry to hear of your bad experience. I just financed a $2200 3 way speaker designed by a DIYer from Madisound. An absolute mess. 83db!!!, Not one good thing about this speaker, i sold them for $1K. That is funny though, 2.5 ohms! worthless! I'm close to ordering the Thor kit, she's a winner! Trust me the Seas Excel midwoofers are real performers.