http://www.jblpro.com/Tent_Sale/sale_items.htm
3677S-B S/M 3677S (M115 W/O NETWORK) 1 163.61

From the 3677 PDF:
The JBL 3677 cinema loudspeaker

The high-frequency section consists
of the JBL 2416-1 pure titanium com-pression
driver and 2373 Flat-Front Bi-Radial horn.

The low frequency driver is the
JBL 2035H, which provides an
exceptional match for system power
handling and frequency response in
the crossover region.