This is a simple one, but I wanted to be sure before implementing.

I have a pair of JBL E140-8A's that I don't need the aluminum dust cap in the application I have in mind. I want to use in a front loaded horn system from 150hz up to 800hz.

I want to know if I could put a paper dustcap over the aluminum one, or if I need to remove the aluminum to install the paper dust cap.

I am looking at using the 140's due to their extremely low Qes which I believe makes them a good candidate for horn use.

I will be using less than 10 watts in their intended mode. The only thing that might screw things up is the "bump" in response due to design that I read about. Other than that, I figure the dust cap needs to be subdued(aluminum).

Any and all comments welcome on this. The horn is a older Edgar tractix 150hz front loaded which I will use up to 800hz where a GP 399 driver on Edgar 500hz round horn will be used.

Ron