I have just some questions on refoaming some jbl speakers. I know L15 and L26 have a foam suspension and sometime they need to be refoaming. How often to they need to be? are new foams kits more resisting and last longer? i also would like to know, on the l100 and l112 speakers there is not a foam on the woofer, but a cunt of tissue. Does this material need to be change as foam suspensions? or does it is a life suspension?
Thank you in advance
Regards