Have thiel 3.6's. Will mcintosh ma6600 work?

zd542, Typically as a speakers impedance changes so does it's sensitivity. The Mac's use of autoformers compromises the advantages of quality high current ss amplifiers to maintain linear frequency response.

The Mac's with their autoformers won't double down into the 3.6's rather challenging load. Not what I would recommend.

^That's really disappointing to hear. Thiel's once legendary customer service seems to have faded away with the previous/original owners. Things are really changing at Thiel, and it seems as though it's for the worse.
Check e-bay, from time to time there will be part out sales of various Thiels. Another option is to contact Miller Sound in Philadelphia. I just had a friend have a Thiel CS 2 driver rebuilt by Bill LeGall there, and he was very satisfied with everything.

^Good to know! But, $300 each is a bit steep.
Though it wasn't advertised policy, if the repairs weren't due to abuse, IME Thiel used to do repairs gratis, and only charged a house discounted shipping cost one(!) way, even for items that were past the generous 10 year warranty.
Man, I really miss Jim, Shari, Gary and the rest of the gang!

Oblgny, I agree the 3.5's are worth repairing. IMHO, they have always been one of the top value speakers available. Your Pass amp is surely a lovely combination with them.
Still, $300 seems a bit steep. Though perhaps a bit back in time; I'd hazard a guess they didn't cost too much more new. A simple rebuild shouldn't cost that much.
You're right to question those e-bay sellers regarding the drivers being sold as OEM. Though back then Jim Thiel used outside sourced drivers, they were modified to his specifications. Off the shelf manufacturer drivers though similar, are not exactly the same.

^I completely agree!
I've been tempted too, but then I remember the cost of amplifying those 5's!

^Nice!