In a previous thread, Giskard posted this information -
The 4340 is the bi-amp only predecessor to the 4343.
The 4341 is the passive only predecessor to the 4343.
The oldest Pro price list I have only goes back to April of 1977 -
http://audioheritage.csdco.com/vbull...tor+price+list
Thanks, Giskard!
Here is a Link to 1974 4340/4341 brochure in Library section of this website
The drivers specified for the model 4340 & 4341 are listed in the graphic excerpt posted below (chart posted courtesy of JBL)
Note that the Model 4343 (see brochure) which replaced the 4340/41 used the same drivers and a somewhat larger cabinet.
3140 - crossover used in 4340 (biamp config)
3141 - crossover used in 4341
3143 - crossover used in 4343
3145 - crossover used in 4345 (final version of the 4 way crossover used in this series)
Here's a picture of the 3141 crossover in a 4341 - its bolted the bottom just behind the woofer and is normally covered with soundproofing material
The grey cable runs up to the L-pad assembly, and the paired lines go to the individual drivers and the rear terminal panel.
Below this is page 3 from the JBL Professional Studio Monitor reference chart listing the components of various monitors.
Reply With Quote