I bought a passel of these wedges to upgrade my stage monitor system. They are pricy, boy-howdy. But...
They are remarkable. Very flat right outa the carton. I EQ'd them with my Ashly Protea system using SmaartLIVE, and really minor and very few adjustments were required. They sound great - no obvious resonance(s).
Components:
LF - 2262H 12-in Differential Drive woofer, neodymium motor and dual voice coil
HF - 2431H 3-in voice coil, neodymium motor compression driver
weight - 33lbs (15kg)
Dimensions - 21.5x13.75x10.25 inches
They are switchable passive (1.2kHz) or bi-amp.
http://www.jblpro.com/srx700/SRX700_...BL.SRX712M.pdf