Download the 6pp 1980 JBL ‘Studio Monitors’ catalog:
DOWNLOAD: JBL_1980_Monitors
Models covered, with text, specs, and photos, include: JBL 4350B, 4311B, 4331B, 4343B, 4313B, 4333B, 4315B, and 4301B speakers systems.
At one point or another I think i’ve come across all of these things in various studios, offices, and edit rooms… as I type this, I am listening to Tangerine Dream’s 1975 live LP ‘RICOCHET’ on a pair of JBL 18Ti, which were their hi-end home bookshelf speaker of the same era… still sound great btw.
Below: the 4350B. And yeah it weighs 261 pounds.