Well this isn’t a direct answer, but I use a ARC Classic 60 to run my Thiel CS 2.4’s with ease, I use the 4 ohm tap and it sound great.
I know the 3.6’s are notoriously difficult to drive, but ARC gear just works on mine.
be warned, you may need to replace the large caps at the very least. I used KEMET power filter caps, high quality but $50 a cap for my unit. Also you need to be comfortable biasing the amp if it doesn’t self bias, or send it to match.
