Adena Logo: JBL MRX525 Dual 15" 2-Way Loudspeaker Page, School Stage Sound JBL MRX525 Loudspeaker
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JBL Professional MRX525 Speaker System

JBL Professional is constantly pushing the threshold for better, more useful products for the working musician and DJ and once again JBL Professional hits the target with their MRX500 Series loudspeakers. The MRX500 delivers outstanding performance for the DJ and musician where a smaller, lighter, more portable system is required with no sacrifice in sound quality or durability. Up to 30% lighter than comparable systems, the MRX was designed from the ground up utilizing JBL's Differential Drive® transducer technology. Specifically engineered for MRX and completing the design, a series of rugged plywood enclosures, covered with JBL’s DuraFlex™ finish, a tough, textured scratch resistant surface, that ensures years of solid performance and professional good looks.

Dual 15" speaker systems have become one of the most popular configurations with DJs and musicians who are looking for more low-frequency performance while maintaining the simplicity of a single-box system. The JBL MRX525 is a portable, dual 15", two-way dual chamber, bass reflex, speaker system designed for main PA full bandwidth applications including live sound reinforcement for vocals and musical instruments as well as high-level music playback

The MRX525 is an excellent choice when the application calls for high performance and simplicity. A pair of MRX525s and a single, high-power amplifier is a complete sound system capable of reinforcing bass and kick drum or playing high-level music in clubs and other venues. The 70° coverage angle of the MRX525 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 DuraFlexT 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 a very professional appearance.


  • 700W continuous, 1400W program, power handling.
  • Lightweight, high-power, and extra low-frequency extension.
  • Dual 15" Differential Drive® woofers.
  • 1.5” annular polymer diaphram, neodymium compression driver.
  • Non resonant all steel carrying handles.
  • 16-gauge perforated steel grille with internal accoustically transparent lining.
  • Rubber feet.
  • Tough DuraFlex™ enclosure finish.

Detailed Features

JBL 2408H Compression Driver


The MRX525 is comprised of two 380 mm (15 in) JBL 265H Differential Drive® woofers with combined power handling of 800 watts continuous. For the high frequencies a JBL 2408H 37.5 mm (1.5 in) annular polymer diaphragm, neodymium compression driver is mounted to a 70° x 70° horn.

JBL 265H Woofer Speaker

100 Hour Torture Test

Like all JBL Professional products, the MRX Series is brutalized in JBL’s speaker torture test. Unique in the industry, the JBL torture test submits each component in the MRX Series to 100 hours of continuous, high level input, ensuring that the MRX will deliver its extraordinary sound even after years of tough handling and thousands of hours of performance.

Technical Specifications

System Type Dual 15" two-way sound reinforcement speaker
Impedance 4 ohms
Frequency Response 57 Hz to 20 kHz (+/- 3 dB)
HF Dispersion 70 x 70 degrees
Crossover Frequency 1.8 kHz
Crossover Mode Passive
Sensitivity @ 1W/1M 98 dB SPL
Maximum SPL 129 dB SPL continuous, 135 dB SPL peak.
Power Handling Continuous 700W
  Program 1400W
  Peak 2800W
High Frequency Driver JBL 2408H 37.5mm (1.5") annular polymer diaphram, neodymium compression driver.
Low Frequency Drivers JBL 265H 380mm (15") Differential Drive woofer.
Input Connectors Neutrik® Speakon® NL-4 (x2)
Construction Trapezoidal, 15/18mm, plywood.
  Black DuraFlex™ finish.
  Black, powder coated, 16 gauge perforated steel grille with acoustically transparent black screen backing.


Width ..... 535 mm
Depth ..... 460 mm
Height ..... 1240 mm
Weight .... 38.2 Kg
  JBL MRX525 Speaker Dimensions

Ordering Information

Description Order Code
JBL MRX525 Speaker 2 Way, 2x 15" + 1" Horn JBL-MRX525
The information presented on this page is provided by courtesy of JBL Professional.
Revised: 22-Dec-2010 Copyright (C) 2010 Adena Limited