You could PM member “jafant”, he is a big Thiel fan and can probably answer your questions.
Thiel 2.3 2.4 coaxial drivers filled with ferrofluid or not ?
I have a questiin about the thiel 2.3 2.4 coaxial drivers maybe sombody can answer
I have mailed cohorence speaker service 2 times with this question but they didt not replying (sadly) so now i trie it this way
I have some drivers that i want to sell but i want happy buyers i dont want to sell them when i dont know for sure if they stay working for a long time because of problems with them deu sticky dry old ferrofluid ?
Thanks for the replys in advance