Thiel is officially closed!!

I was cranking beethoven when I blew a midrange on my 3.7s.  I also may have clipped as these are a pretty difficult load.  It happened in my first couple of months with them and no problems since.  I doubled the amp and run bridged mono now.  6-800 watts into 4 ohms.  I'm also more careful with the volume.  They play plenty loud but I will say that they were not distorting audibly when this happened so it may be that they don't give much warning before failing.

The store I bought them from said one thing that can happen is the glue between the woofer cabinet and top can dry up and fall out meaning that the air pressure in the woofer cabinet can leak into the top chamber and put pressure on the mid/tweeter.  You can push on the woofer and radiator (gently, obviously) and see if the mid moves at all.  If it does you have a leak that needs to be plugged.  Open up the top and seal up anything that might be leaking from the woofer chamber with wood glue or caulk or something. 

thank you so much.   that is great advice and i will gently push on the midrange driver.  i think the drivers are the same for the 2.7 and 3.7

I guess I have been lucky, I crank my CS6 and 3.6. Good advice on the importance of a good seal.  I do check mine periodically.

i do not think the older drivers were as vulnerable, as i have had four generations of the 2 series,  and prior to the 2.7's,  only blew one midrange one time.  Gary at Thiel said it just failed and was not caused by anything i did.

From posts on this board it sounds like replacement drivers are no longer available. Instead, it sounds like Rob Gillium refurbishes broken ones.

I wonder if he monitors this thread. If yes, may I suggest, Mr. Gillium, that you offer crossover upgrades to help Thiel owners get the best possible SQ and to give yourself a bigger revenue stream. Win-win!