There are two major points.
Firstly, I think old Thiel speakers keep to be
one of the best ones, in absolute terms. For instance, for my taste, Wilson Audio speakers, which cost is uncomparable to those of Thiel are no better - with apparently more defined mid and high ranges, they, for my taste, sound more sharp and bright. And lower frequencies of CS 6 and CS 7.2 and just incomparable with even largest Wilson speakers.
So keep your CS 7.2 and keep trying to fix the tweeters. I have completed a similar task for my CS 6 about one year ago. Although it took almost one year, the coaxes were rebuilt successfully at Thiel. At that time, the telephone number did work and also e-mail communication was especially useful. Try to contact Rob Gillum at rgillum@thielaudio.com. Although quite busy, he is a nice guy and I think will be able to repar your tweeter successfully, as he did with my two coaxes. Good luck!
Firstly, I think old Thiel speakers keep to be
one of the best ones, in absolute terms. For instance, for my taste, Wilson Audio speakers, which cost is uncomparable to those of Thiel are no better - with apparently more defined mid and high ranges, they, for my taste, sound more sharp and bright. And lower frequencies of CS 6 and CS 7.2 and just incomparable with even largest Wilson speakers.
So keep your CS 7.2 and keep trying to fix the tweeters. I have completed a similar task for my CS 6 about one year ago. Although it took almost one year, the coaxes were rebuilt successfully at Thiel. At that time, the telephone number did work and also e-mail communication was especially useful. Try to contact Rob Gillum at rgillum@thielaudio.com. Although quite busy, he is a nice guy and I think will be able to repar your tweeter successfully, as he did with my two coaxes. Good luck!