I used to own a pair of Thiel 3.6 about 10 years ago. Had it with a few combination. Aragon 4004mk2, Levinson 23.5 and Levinson 333. They all work with varying degree of success.
I would suggest playing with placement before spending more money. Things like reducing rear reflection by arranging the apex of the speakers/listener position toward the opening of the room. That will create a larger room than 13x13.
Simple toe-in will change speaker tremedeously as well. I know it's a lot of work to move heavy speakers, but it would be quite rewarding I think.
BTW, has anyone tried a digital class-D amp on Thiel 3.6?
I would suggest playing with placement before spending more money. Things like reducing rear reflection by arranging the apex of the speakers/listener position toward the opening of the room. That will create a larger room than 13x13.
Simple toe-in will change speaker tremedeously as well. I know it's a lot of work to move heavy speakers, but it would be quite rewarding I think.
BTW, has anyone tried a digital class-D amp on Thiel 3.6?