Quote Originally Posted by Earl K View Post
As far as I'm concerned you've nailed it ( a bad batch of diaphragms , ( metal related ) ; too thin, wrong Alu mix, wrong metal prep, etc. etc. ) .

I'd love to see some sweeps of your 802s ( Fr & Dist ) on the same 511Es ( that would be a learning experience for all of us ) . When you have time .

This is probably the most probable cause.As I have a Brand new pair of the same diaphragms 23763's and they are pretty flat.And sound great BTW ! I'm almost certain they are from the OKC plant from the 80's from what info I have been able to piece together.


I have adapters for the 511E's to mount the small formats (802's) and have been wanting to measure the Brand new 802G's I have with the lite Frams for awhile now.Just haven't had much time to do anything with work taking most of my time now.. Can't even finish my project that has been taking much too long now..

But I'm starting to see some light at the end of the tunnel so to speak.