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JBL JRX112M 12" 2-Way Stage Monitor PA Speaker

Brand:|Model: JRX112M|Part # 245-810

The JBL JRX112M is a portable 12" two-way speaker system designed specifically for live performance stage monitoring applications.
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Part # 245-810
  • Legendary JBL engineering and sound quality
  • Rugged and acoustically superior 3/4" MDF enclosure material
  • All woofers and compression drivers manufactured in California by JBL
  • Tough, non-resonant all-steel handles and 18 gauge steel front grill
  • SonicGuard™ circuitry protects crossovers and HF components
  • PT™ Waveguide provides well-controlled coverage and low distortion

Product Details

JBL JRX112M 12" 2-Way Stage Monitor PA Speaker

The JBL JRX112M is a portable 12" two-way speaker system designed specifically for live performance stage monitoring applications. With enough sensitivity and power handling to cut through the performance volume onstage, the JRX112M has a smooth response so it can deliver maximum gain before feedback. It also includes JBL's dual-angle pole socket making it equally at home as a front-of-house speaker. The JBL JRX112M delivers the performance and prestige JBL is known for at an affordable price point.

Components: JBL M112-8 12" woofer, JBL 2412 1" exit compression driver mounted on Progressive Transition™ Waveguide.

Specifications: • Power handling: 250 watts RMS/1,000 watts peak • Recommended amplifier power: 250 watts to 500 watts • Frequency response (-10 dB): 60 Hz to 16 kHz • Nominal impedance: 8 ohms • Sensitivity: 99 dB 1W/1m • Maximum SPL: 129 dB • Nominal dispersion: 90° x 50° • Crossover frequency: 1.8 kHz • Input connectors: Neutrik Speakon® NL-4, 1/4" TS phone jack • Weight: 43 lbs. • Dimensions: 22.5" x 15.5" x 12.5".

Progressive Transition™ Waveguide

Just one example of JBL's innovation is the PT™ Waveguide design. For decades, horn designers were faced with trade-offs between well controlled coverage, low distortion, and good frequency response. JBL developed proprietary algorithms which give their PT Waveguides the best performance in all three areas.


JRX100 doesn't scrimp on the hardware either. All the JRX models use tough, non-resonant all-steel handles with big, beefy bars. And the entire baffle (not just the woofer) is protected by an 18 gauge steel grill.

JBL Drivers

All woofers and compression drivers used in JRX100 are manufactured in Northridge, California by JBL Professional.

Enclosure Construction

Competitive systems typically use particle board construction and rely entirely on glue to hold it together. For JRX100, JBL selected a more rugged and acoustically superior 3/4" MDF material for the enclosures. And to make sure they stay together, they constructed them with advanced adhesives and closely spaced mechanical fasteners. Not only are the cabinets rugged, but the denser enclosure walls are more rigid, delivering better low end as a result.


Feedback, dropped microphones, pushing the amps into clipping—all these things can quickly destroy even the best high-frequency drivers. That's why JBL JRX100 speakers include SonicGuard™ protection. SonicGuard circuitry absorbs excess energy without interrupting the performance. No circuit breakers to reset, no fuses to replace, and no "poly-switches" to degrade sound quality.

"Power Capacity" and "Peak Power Capacity" ratings are based on the average and peak power capacity of product samples subjected to a 100 hour power test using random noise with a 6 dB crest factor, in accordance with IEC standards.

Product Specifications
  • Speaker TypePassive / Unpowered
  • ConfigurationStage Monitor
  • Woofer Size12"
JBL JRX112M 12" 2-Way Stage Monitor PA Speaker
  • BrandJBL Professional
  • ModelJRX112M
  • Part Number245-810
  • UPC050036902816
  • Product CategoryPA Speaker Systems
  • Unit of MeasureEA
  • Product Rating
    (1 Reviews)
  • Weight48 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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JBL JRX112M 12" 2-Way Stage Monitor PA Speaker

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