Recommendation for higher power tube amp

OK, my takeaways are - 
1) Get different speakers (currently favoring the Devore 3XLs based solely on web based research) or
2) Go tube pre and very high power amp or
3) Try a Music Reference RM-200, no holding my breath for sonic epiphany (and also being wary of falling boulders, while Persephone (my wife?!?) looks on from the kitchen).

mikapen - I would love to find that dealer w/ amps I could demo at home, but living two hours from civilization makes this tough.  I did actually find a dealer in the big city who just happened to have the 2.3s sitting around, let me try several amps with them, which is how I started down the tube amp road in the first place.    

Great discussion and insights, this has helped me make informed choices, plus entertaining as always, thanks all.

Have you considered running a powered sub and limiting the signal to the Thiels?   I have the Thiel PCS speakers, which are basically the top end of the 2.3/2.4's, with a powered-Sub, all driven by an ARC VS-55 (puts out about 45-watts a side) that gives me near concert level volume.  Fyi, I use a pre-pro to handle the speaker setup.

btw, I would highly not recommend buying anything that you can't return based on internet reviews.  I have been utterly destroyed by that in the past.  It's pretty amazing how erudite some def people can be!

@atmasphere  and OP,
Wouldn't using a pair of Zero Autoformers help with the low impedance issue?
Bob

Efficient speakers MAY help, but an efficient speaker may introduce a difficult load for that particular amp. The crossovers or some other feature may confuse the amp.

IME this is an *extreme* rarity. Usually efficient speakers are a much easier load; in fact I've never seen an efficient speaker that was harder to drive. FWIW most speakers of higher efficiency don't have weird phase angles; that is more commonly seen in lower efficiency speakers. So the crossover comment seems right out.

Wouldn't using a pair of Zero Autoformers help with the low impedance issue?

No. If anything, the terrible inefficiency of these speakers is more of an issue than the impedance, although the impedance isn't helping.

I have thought about using a sub fed from pre-pro, that could be another potential path, any recommendations?  Is it worth it to go the whole enchillada room correction route with something like the DSPeaker anti-mode 2.0 or similar,or is any preamp with dual outputs ok (already have a sub).