(Based on 
A pair of these PA speaker cabs plus an amp will deliver impressive full-range performance!
The JBL MRX525 dual 15", 2-way dual chamber, bass reflex, main PA speaker is an excellent choice when the application calls for high performance and simplicity. A pair of MRX525 speakers and a single, high-power amplifier comprise a complete sound system capable of reinforcing bass and kick drum or playing high-level music in clubs and other venues. The JBL speaker has 2 - 15" 265H Differential Drive woofers with combined power handling of 800W continuous. For the high frequencies, a 2408H 1.5" annular polymer diaphragm, neodymium compression driver is mounted to a 70° x 70° horn. The 70° coverage angle of the JBL MRX525 loudspeaker is wide enough to provide coverage of an audience when used one-per-side, yet narrow enough to allow splaying of multiple enclosures without excessive coverage overlap. The enclosure is constructed of quality plywood and coated in JBL's rugged DuraFlex finish. The attractive CNC-machined, 16-gauge steel grille wraps around the sides of the enclosure. The grilles are internally lined with an acoustically transparent screen to provide additional driver protection and give this PA speaker a very professional appearance.
Based on 
