michaelgreenaudio,
Michael, I didn't try all conceivable methods and positions of the older L-100's, but that speaker became way to colored for my tastes. The tweeter was sizzling hot, very forward midrange, and a woofer that sounded like a dull gong when you tapped on it with your finger.
I listened to a revamped line of Altec bookshelf speakers that sounded way more neutral and easy on the ears than that old JBL-100. Plus they were one third the price. I eventually bought the Large Advent Loudspeaker which to my ears, sounded much more lifelike. JMO.