Rick Ruskin wrote:
The low end of my JBL 4315's sounds sounds less tight and defined
after having the 12" drivers refoamed.
Foam gets more brittle and the center frequency of the Q it represents
moves upward over time.
I'm wondering if this could be
do to them not being sealed tightly enough with the enclosures.
I'm thinking "not tightly coupled enough" as more of a chuff thing.
Is
there any way to test for a proper seal without having to dismount
them and instal yet a another set of new seals?
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Les Cargill