Mike {AB} Butler wrote on Wed, 02 April 2008 04:56 |
...And you're not giving JBL too much credit? There were sub-50 hz boxes from Altec, EV, and even RCA in that time period. Even Harry F. Olson's Accoustical Engineering shows sub- 50 Hz performance from cabinets, IIRC. But to partly backup your claim, I do remember reading articles that give James Lansing credit for developing the first drivers that could handle more than the 30 minuscule watts that everyone else in the day was stopped at. Regards,
|
A young Rudy Bozak hooked up a 27" cone (8" voice coil!) to a 500w high-power radio transmitter tube back in 1939. The magnet was an electromagnet that weighed 450 lbs. Actually there were 8 of these assemblies in a circle atop a tower at the 1939 World's Fair. Each driver was hooked to a horn with a 14' mouth; the monster drivers served as the LF section of a 2-way system. The top bandpass was probably another ring of Western Electric horns, but I'm not sure.
Don't know about its 50 Hz ability.
Probably not hi-fi; just efficient, powerful and LOUD.
-BinK