If I was in your position I would take the simplier route of moving up the ladder and getting a Thiel that has lower frequency response. It would be easier than trying to integrate the speakers and dealing with all the extra wiring. Just my two cents.
Subwoofer suggestions for thiel 1.6?
I'm considering what would be a good sub match for the Thiel 1.6, aside from thiel's very own powered sub (which is something like $5,000 new.) Anything more affordable to recommend? I'm really interested in rounding out the bass on a select few rock recordings. For 90% plus of what I listen to, including rock, I'm happy with the low end of the 1.6.