A friend of mine approached me with a problem he was having with a JBL
2425H horn type driver that they use in their church. Problem is it distorts at moderate volume. I recommended / guessed it might be a bad diaphragm so he had me order an aftermarket replacement diaphragm. Same distortion remains after the replacement was installed.
I've hooked the speaker up to different sources to eliminate a bad signal.
What else might be causing this?
Any help/suggestions will be appreciated.
G