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jim3860
03-19-2010, 10:29 AM
Ok I picked up a pair of original Jubals that had the original 126's replaced with recently refoamed 122A's is this a good thing or does the crossover need to be modified to match the 65-A? or are the crossovers the same in both models?

REGARDS JIM
badman
03-19-2010, 03:33 PM
Ok I picked up a pair of original Jubals that had the original 126's replaced with recently refoamed 122A's is this a good thing or does the crossover need to be modified to match the 65-A? or are the crossovers the same in both models?

REGARDS JIM

Fist thing to do is to test the 122As. I've used a few older JBLs, the only ones with apparent demagging issues were the 122As. I repurposed them to be infinite baffle subs, but that's just me. If their QTs is above .3 they're probably demagged beyond usability.

Re: the crossover, that's for someone else to fill in. The likely answer is that it needs adjustment.