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Jr Size Bass Pedal


12 in. Two-Way Stage Monitor Loudspeaker System

The JRX112M is a portable, twelve-inch, two-way speaker system designed specifically for live performance stage monitoring applications.


  • JBL 12 in low frequency driver with a 64 mm (2.5 in) diameter edgewound ribbon voice coil which provides more cross-sectional wire area in the voice coil gap than round wire designs, for greater efficiency and power handling.
  • Ferro-fluid cooled compression driver with titanium diaphragm improves high frequency performance as well as system reliability.
  • The advanced network topology crossover design shapes frequency response and delivers "coherent summation" in the crossover region.
  • High-voltage capacitors and inductors with massive cores and heavy gauge wire enable the crossover network to handle high power without saturating.
  • Progressive Transition™ high frequency waveguide provides superior coverage control, reduced distortion, and smoother frequency response.
  • The rugged, acoustically superior enclosure is constructed from 19 mm (.75 in) MDF (Medium Density Fiberboard) using advanced adhesives and mechanical fastener technology for extreme durability and improved low-frequency performance.
  • SonicGuard™ protects the highfrequency driver from excess power without interrupting the performance.
  • Non-resonant, all-steel handles are used.
  • Attractive 18-gauge hexagon perforated, steel grille protects components from damage.
  • Dual-angle pole-mount socket allows the speaker to tilt 10°for more uniform audience coverage.


Power Rating

250 W / 1000 W

Frequency Range

60 Hz - 16 kHz (-10 dB)

(H x W x D)

572 mm x 394 mm x 318 mm
(22.5 in x 15.5 in x 12.5 in)

Frequency Response

70 Hz - 12 kHz (±3 dB)

Nominal Impedance

8 ohms


99 dB SPL (1w/1m)

Recommended Amplifier Power

250 W to 500 W into 8 ohms

Maximum SPL

129 dB

Nominal Dispersion

90º x 50º

Crossover Frequency

1.8 kHz


19.5 kg (43 lb)

High Frequency Driver

JBL 2412 1 in exit compression driver mounted on Progressive 
Transition™ Waveguide

Low Frequency Driver

JBL M112-8

Input Connectors

Neutrik® Speakon® NL-4 (x1); .25 in TS phone jack (x1); parallel