Having scanned these forums, I am in awe of the impressive, and enviable collection of vintage JBL loudspeakers.
Given the relative scarcity of critical components namely drivers and such, I can`t help but wonder if these speakers are in daily use.
I for one would not be able to resist the urge to use them on a daily basis however, given the age of some of these units, I`d be more than a little apprehensive to do so.
I`m guessing most of these speakers are used in second systems with something more modern, but not necessarily better, serving as daily drivers.

I`m considering assembleing a vintage system centered around a pair of 4312`s or perhaps 4411`s driven by some classic Marantz power but I dont think it would replace my current
Rega/Magnum Dynalab/Krell/Opera system for daily use.
I just cant see a system of that vintage being able to stand up to that kind of duty, especially when in the mood for elevated SPL`s but I could be wrong..