I have a pair of JBL L300. They were given to me by a friend and I never used them until yesterday. I had the woofers re-foamed and hooked them up to play them.

The tweeter does not seem to work on one of the speakers. The weird thing is when I played with the brilliance (I think it was the brilliance control) the mid-range had some static and cut in & out for a second, but then worked fine. I turned the control several times until I didn't hear anymore static. However the tweeter on the same speaker doesn't seem to work.

Could it be the crossover?

Stupid question, but if it's the tweeter, can it be rebuilt?

Thanks.