Well, I got done rebuilding the crossovers and I removed the 034 Tweeter to take a look - a gratuitous action on my part. I was ready to install the crossover back into the cab and had the schematic out next to me. So I checked and rechecked my work as best I could. Mostly I made sure I "visually" had the rebuilt crossover connected with wires routed exactly as they were. These 46's are in great shape and I'm 95% certain they haven't ever been opened. Long story shorter -- I noticed that the "yelow and black" tweeter lead off the neg binding post (internal) is designated as "Neg" in the schematic and to connect to the negative pole on the tweeter -- the yellow/black lead wire however has a female type spade connector and the corresponding pole on the tweeter is marked with a "+" sign. Solid yellow lead goes neg. What gives?
I found a "Polarity Conventions of JBL Transducers...." Vol 1, Number 12B that gave many models with the unusual polarity but the L46 isn't on the listing.
Any help is much appreciated as I'm relatively new to the tech side of these speakers. Many thanks!