Hi Turnaround, I have the Thiel 3.6's and I'm driving them with a Jeff Rowland's model 10.They alway sounded pretty good. I added the Tach RCS 2.0 which does room correction and is also a digital pre amp and DAC 24/96. Now the sound great!More air,the sound stage opened up, a vail has been lifted.Tach is coming out with a new RCS 2.2 in Fer. or March which also does 24/192. List price is about $4800 for correction and pre amp and $6000 for the full model which includes 24/192 ADC and DAC.
Joe
Joe