Best JBL's you have heard


I have a pair of highly regarded speakers that sell in the $4,000 price range. Several months ago I purchased a pair of JBL L200B's off Audiogon. I am amazed at the sound quality of the JBL's. Comparing both speakers back and forth, the 200's more than hold their own. I have two questions: first, is it just me or have any of you had similiar experiences with vintage speakers, and second, what are the best JBL speakers you have heard?
dumboat
Circa 1977: Bass guitar rig consisting of 4520 scoop (rear horn loading dual 15in. 2205 speakers) crossovered at 800 Hz to a 2395 horn lens with a 2440 compression driver.
I used to own a pair of 4311's - bought them in 1975, drove them with a Marantz receiver, and loved them. It was a great time in my life.