This is why JBL uses them. See below: page 3 see section High Resolution Dividing Network.
Mike
https://www.lansingheritage.org/html/jbl/catalogs/1982-home.htm
Bypassing Caps - what is it really about?
I understand the theory, but I've never been clear on the practice.
Some say its to extend the highs, but I see people using stuffy vintage caps as their bypass. I've also seen people bypass incredibly good existing caps with more, like Dueland on top of Dueland. So what is this really about? Is it about mixing tones of the capacitors?