From those who have tried (I haven't), I understand that the XPA-3 (generation 2) is excellent for driving the Thiels (of all varieties).
Thiel speakers are more difficult to drive than usual for MOST amplifiers. For the very best performance with Thiel speakers, I'd recommend the following traits:
Conventional power supply with LOTS of capacitance and lots of watts OR (plan B here...) A transformer-coupled amplifier of tube or solid state (McIntosh) pedigree.
The BEST I've heard Thiels sound is my friend Russell's CS-5i speakers driven by Quicksilver tube mono-block amps. Remember now that my advice is worth every penny you're paying for it! Happy shopping!
Last Edit: Feb 18, 2019 12:14:03 GMT -5 by boomzilla