-59% JBL MRX512M

12" Two-Way Bass Reflex, Main PA / Monitor Applications

The MRX512 is a portable, twelve-inch, two-way speaker system designed specifically for sound reinforcment stage monitoring applications.


12" Differential Drive® woofer for high-power capacity and very lightweight

1.5" annular polymer diaphragm compression driver

Compact and low-profile for minimal obstruction of audience sight-lines

70° x 70° coverage for even and smooth response on and off axis

Dual-angle pole socket for applications requiring tripod mounting

Heavy Duty 16 gauge protective screen backed steel grille

Tough DuraFlex™ enclosure finish


Speech reinforcement

Live performance stage monitoring

Reinforcement of vocal and acoustic music

High-performance satellite speaker for use with subwoofers

The MRX512M is a premium, utility/monitor speaker. The MRX512M uses a JBL 262H 305 mm (12 in) Differential Drive® woofer and a 2408H 37.5 mm (1.5 in) annular polymer diaphragm, neodymium compression driver. A 70° x 70° horn provides smooth, even coverage whether used in the vertical (mains) or horizontal (monitor) orientation. NL4 connectors are provided on both ends of the speaker to keep cable runs tidy on stage when used in the monitor application and for easy access when used on tripods.

A passive network provides accurate reproduction throughout the cross-over region. For use on a tripod or over a subwoofer, JBL's dual angle pole mount is included. This feature allows the speaker to be mounted in a vertical position or with a 10° down tilt for optimum audience coverage. 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.


Power Rating 400 W / 800 W / 1600 W

Frequency Range 60 Hz - 20k Hz


(H x W x D) 645 mm x 380 mm x 345 mm

(25.25 in x 15.0 in x 13.5 in)

Sensitivity 97dB SPL

Frequency Response 90 Hz - 20k Hz

Nominal Impedance 8 ohms

Rated Maximum SPL 129 dB SPL continuous

Coverage Pattern 70º x 70º nominal

Weight 14.9 kg (33.0 lbs.)

High Frequency Driver 1 x JBL 2408H 37.5 mm (1.5 in) annular polymer diaphragm, neodymium compression driver

Low Frequency Driver 1 x JBL 262H 305 mm (12 in) Differential Drive® woofer

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  • Brand: JBL
  • Product Code: MRX512M
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