In some recent threads concerning sub-par bass performance from LE15 equipped Paragons, the majority of solutions seemed to center around restoring/replacing the original Lans-a-Loy suspensions that have become stiff and non-compliant with age.
While I agree that will usually help, I'm wondering if the LE15 was actually the best choice for use in the Paragon and why they switched from the 150-4C.
In JBL product literature it clearly states " JBL Linear Efficiency loudspeakers are not interchangeable with maximum efficiency series...maximum efficiency loudspeakers are designed for use in horns and reflex enclosures while the Linear Efficiency group have design features which ideally adapt them to closed cabinets of minimum dimensions".
"The LE15 delivers solid,firm bass in CLOSED CABINETS of 6-8 cubic feet internal volume".
While the LE15's long excursion will move some air, maybe a front-loaded horn is not the OPTIMUM design to bring out it's BEST capabilities.
Anyone?