Thiel Owners

my room is a mere 12’ 10” but i also have some large cabinets creating constraints......

Chaning any of the origial drivers almost ensure the need of a new xover and since the Thiel is time-phase coherent, it's not something that can be done by just anybody.  One almost have to use the original driver as replacement.

ok, guess I should just relegate the 3.5s with non-original drivers to my garage.  Seriously?  I'm looking to find the best replacement drivers (if the Scanspeak pair I have are not the closest).  Will I find the exact replacement I need that will bring harmony to the existing crossover?  Not likely, but chances are good that I'll find something 'good enough'.  And that's good enough for me.  How many other factors (room dynamics, amplifier, individual hearing) actually have more of an impact than nuances of a midrange curve compared to another?  Maybe, maybe not, but I'm not going to throw the 3.5s out, so why shouldn't I find the closest replacement mid I can?  And again, having the originals rebuilt is not an option as the original mids were long gone when I bought these.

My room is not quite 19.5’ wide. But setup is not centered. Left channel only 3’ from wall, right wall has a wood stove and walkway to an exit. Kinda funky, and FR measuremnts during my XO build did reveal some room mode issues worse than I imagined. Conditions ameliorated by vertical houseplants, wall coverings, a bookcase, and especially, two large openings on rear wall.

 I have experimented with speaker position, including toe-in, several times but keep coming back to pretty much where they now sit.

bluetone

it may be worth considering to watch the web daily to score any/all remaining pairs of CS 3.5 loudspeakers. The other 3.5 owners  of the Panel could form a pool of stock for this model. Besides Audiogon, Audio Asylum, eBay and U.S. Audiomart, do not overlook Craigslist, Estate sales, Goodwill, Salvation Army/Salvage shops, Thrift stores, Yard sales. Just a thought to help you guys procure drivers/parts.

Happy Listening!