I have, and daily use, a pair of 1970 JBL L100's (not L100a's, these are vertically aligned and used a different tweeter and crossover)
Those familiar know that on the FR graph, these fall off fairly rapidly after 10khz. I do love the sound of them very much, but have been beginning to think about adding more HF extension to them via the Fostex T90a's or something along those lines (wonder if I've been missing anything up there?).
That particular unit comes with a x-over and a limiting L pad to tune it to the proper level.
Anyways, what I am looking for is input from those far more knowledgeable to the effect of A) would this be even worth the time and $500 to do? B) is there a better option? C) could this actually be detrimental to the sound? and D) any other thing you can think of stating.
(before the deluge of comments about placement, this photo was taken during experimentation with different stands...they are currently on higher stands, in a different area without as much stuff cluttered around!)