was at a local pro sound rental place the other day, in the back room they had some gigenormously huge horns, I mean like over 6' long, mouths were like 4x5', with maybe 2x3 cells, made from heavy black fiberglass, they had a more normal sized large horn inside of them.

in the back of the big horn where you'd expect to see the driver, there was this huge clamshell of fiberglass that looked like it could have had a 15 or 18" woofer inside. the lady laughed and said those were JBL, they use them for PA'ing really really big outdoor spaces where they need to cover from 500' away or something.

anyone have an idea what these are so I can read about them to slake my curiousity (meow!).