Thanks for your reply Thieliste- I have not had time to look at the following option but I had read how a pair of Doshi Jhor mono's drove Wilson Sasha W/P very nicely. These last ones have a more benign impedance and phase curve than the Thiel's but even with that you would not think these amplifiers could cope. So I remain very intrigued by trying tubes for Thiel's.
I have also started looking at Vac (2 phi 200's as mono's) and VTL- I wonder if the signature 200 stereo might actually work.
I have also started looking at Vac (2 phi 200's as mono's) and VTL- I wonder if the signature 200 stereo might actually work.