Anybody using tube amps to drive Thiel CS 3.7's ?


I currently use a Classe Delta 2200 and a Conrad-Johnson CT5 preamp. I'm considering a jump to a tube amp. 80-100 kohm input impedance would be nice and I'd prefer only input from those who've heard Thiels driven with tubes...Thiels are hungry for High quality power. I have a moderate sized room (21 wide by 15 long). Let me hear your advice.
vhiner
Teeshot,

What brand and model are your monoblocs? My Classe is 400 into 4ohms and works very well with the Thiels and my Connie. I'm quite happy but every time I hear tube amps in another person's system, I'm beguiled. I guess I'd like to introduce a little more tube magic into my system without losing the bottom end grip. I'll never forget going to a tube preamp for the first time. I'll never go back to a solid state pre. I agree that power is critical with the CS 3.7's....which is why tubes might be out of my monetary reach.

I may have a chance to audition some NAT Generator monoblocs but not for a while. They're push/pull 275 wpc into 4 ohms.
I recently purchased CS3.6 and play quite nicely with my ASL Hurricane monoblocks. They put out 200w/ch in pentode mode. I'm able to achieve pretty high volume levels with no clipping and my room is about 17' x 19'. Sound treatment and placement are key and I find the Thiels are very sensitive to toe in and side wall reflections. You might want to consider the ASLs which are pretty highly regarded and provide a very good # tube watts/buck. Good luck!
Vhiner

I have been using VAC PA90E1 amps with my Thiel CS1.5 speakers for about 4 years with no problems in triode (50 watts) or ultralinear mode (100 watts). Kevin Hayes @ Vac is very familiar with Thiel speakers and uses them in his own house. He can let you know which of his amps would work best with the CS3.7's. I would give him a call.
I have thiel 2.4 with arc  5se preamp  has anyone used arc ref 150 currently using bryston 4bsst2 

These Thiel’s need an amp with grunt to sound their best, lots of current, that really means Tubes or Mosfets are not ideal. Amps that can almost double their wattage from 8ohm to 4ohm to 2ohms, would do the right thing by them.

From the Stereophile test results.

" I actually found the minimum impedance to be 2.4 ohms at 125Hz. The difference between 2.8 and 2.4 ohms is academic, either mandating use of an amplifier that has no problem delivering high currents"

http://www.stereophile.com/content/thiel-cs37-loudspeaker-measurements#POtrL7hdCUOxjofF.97


Cheers George