This is to continue a conversation about compression driver design and the effects material, surround type and geometry have on the HF time domain of the secondary resonance of the drivers.

Typically 10-20Khz.

Take a look at the attached video talking about material differences, surround differences and the effects. It's informative and we can discuss in the thread.

Rob

https://www.youtube.com/watch?v=x9NAVlwvLro