Dunlavy resurrection?

Hi @sedgewick ,
Unfortunately Dunlavy is not the only speaker maker who used 1st order filters and suffered reliability issues as a result. Some more than others.

The issue isn't merely the filter order (1st, 2nd, etc) but also the cutoff frequency. The lower the f the more power / displacement the tweeter will be subjected to.

I think this probably has a lot to do with Gryphon and their choice of using AMT's. The good one's have remarkable power handling and are nearly indestructible. I'm not sure what their filter topology is though, last I read they were using something Duelund had come up with .

Best,
E

I am a huge fan of JD’s designs.
has this gone anywhere?
I would love to help if I could.

The prototypes are done and sound amazing.  I'm still not sure "I want a job". I'm very busy with my other career.  Whats your background or interest?

did you stick with first order ?, that is where the magic lives, along w difficult engineering work.

The prototypes are done and sound amazing.  I'm still not sure "I want a job". I'm very busy with my other career.  Whats your background or interest?