Master Reference Monitor

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M2 Master Reference Monitor

Addressing the growing need for high dynamic range and reference-monitor accuracy in a broad range of studios, JBL has developed the M2 Master Reference Monitor: A Free-Standing, 2-Way System that can be placed in any environment to provide an exceptionally accurate monitoring experience. Leveraging a new generation of JBL high-output, ultra-low distortion transducers, the M2 provides in-room frequency response of 20 Hz to 40 kHz, and an extraordinary 123 dB maximum SPL to meet the demanding music, cinema and broadcast production requirements for impactful dynamic range.



  • The Ultimate High Frequency Driver for Critical Reference Monitoring Extended HF Reproduction Smooth Response High Power Handling Measurably Lower Distortion Reduced Power Compression Increased
    Dynamic Headroom
  • Exceptional Low Frequency Extension, High Output, Very Low Power Compression, Very Low Distortion
  • Impressive Imaging and Sound Stage, Exceptional High Frequency Detail, Uniform Directivity for Smooth In-Room Response, Patent Pending Design
  • LSR Linear Spatial Reference Design
  • Small Footprint, Extended Bass Performance, Patented Low Frequency Port Design



The Ultimate High Frequency Driver for Critical Reference Monitoring, Extended HF Reproduction, Smooth Response, High Power Handling Measurably Lower Distortion, Reduced Power Compression, Increased Dynamic Headroom


Enhanced Performance and Exceptional Low Frequency Extension, High Output, Very Low Power Compression, Very Low Distortion

Achieving extended, rich low frequency performance within the M2 system design parameters required additional JBL engineering innovations, and the 2216Nd in the M2 is no “off-the-shelf” woofer. It employs no less than five patented technologies to allow bass extension to the limits of the audible range, and high output, free of power compression that is detrimental to a system’s low frequency performance. Echoing the “dual driver” design of the D2, the 2216Nd utilizes dual neodymium magnets and two voice coils. To ensure the ultimate performance, even the use of special wire in the 2216 voice coils is a JBL patented application.


Impressive Imaging and Sound Stage, Exceptional High Frequency Detail, Uniform Directivity for Smooth In-Room Response

To support an imperceptible transition between the two drivers, and deliver exceptional imaging, JBL engineers pioneered a new patent-pending waveguide design that enables neutral frequency response, not just on-axis, but off-axis in the vertical and horizontal planes, all the way down to the M2’s 800 Hz crossover point.



We all know that many loudspeakers have similar measurements but sound different. By going beyond simple on-axis frequency response measurements, JBL defines the ultimate performance specification for new systems – what it will sound like in your room. At the mix position, you hear a combination of direct sound and sound reflected from the rooms surfaces. For sound arriving at the mix position to be smooth and neutral, it is not enough for a speaker to measure “flat” on-axis; it is essential the speaker have excellent off-axis performance.


Small Footprint, Extended Bass Performance, Patented Low Frequency Port Design

Extended low frequency performance and high SPL can be the formula for unwanted resonance. The M2 enclosure is constructed of rigid 1" MDF and with the aid of JBL’s interferometer, extensively braced for rock-solid stability at the system’s full rated power. The enclosure incorporates a JBL patented Slipstream port design with internal flares that ensure low frequency efficiency while eliminating noise caused by port turbulence. Architecturally elegant, the M2 enclosure occupies a relatively small footprint, and can be transported to various working environments.

System Integration

System Integration

While offering exceptional accuracy “out of the box,” the power of the M2 is fully realized with its intelligent in-room tuning and integration capabilities, ensuring optimum performance in your listening environment.



  Version Language Size Uploaded
M2 Set Up Instructions
updated: Oct 31, 2019
    969 KB Oct 31, 2019
M2 Brochure
updated: Oct 23, 2020
    6.49 MB Oct 23, 2020
LSR Series M2 Declaration of Conformity
updated: Oct 18, 2019
    119 KB Oct 18, 2019
HiQnet Audio Architect
updated: Nov 10, 2020
    Nov 10, 2020
Speaker Tunings
7 Series and M2 Crown DCi Tuning
updated: Feb 24, 2020
    176 KB Feb 24, 2020
M2 Crown iTech5000HD Tuning Files
updated: Feb 24, 2020
    21.2 KB Feb 24, 2020
M2 System File BSS Soundweb London BLU800 Tunings
updated: Feb 24, 2020
    390 KB Feb 24, 2020
M2 Base V2 Config iTech 4X3500HD Device File
updated: Oct 22, 2020
    31.7 KB Oct 22, 2020
Ease Data
Ease SPK/DLL Files - Full JBL Pro Line
updated: Jul 08, 2019
    20.5 MB Jul 08, 2019
Owner's Manuals
M2 Owner's Manual
version A, updated: Jan 15, 2020
  1.62 MB Jan 15, 2020
Port Detail
updated: Jan 15, 2020
    42.7 KB Jan 15, 2020
D2 Compression Driver
updated: Jan 15, 2020
    100 KB Jan 15, 2020
M2 pair
updated: Jan 15, 2020
    37.2 KB Jan 15, 2020
Differential Drive Callouts
updated: Jan 15, 2020
    56.5 KB Jan 15, 2020
Differential Drive Woofer
updated: Jan 15, 2020
    51.3 KB Jan 15, 2020
Image Control Waveguide
updated: Jan 15, 2020
    44.6 KB Jan 15, 2020

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System Format 2-Way Floor Standing or Soffit Mountable
HF Driver D2430K Dual Diaphragm Dual Voice Coil Compression Driver
LF Driver 2216Nd 15 in (381 mm) Differential Drive® Woofer
Crossover Frequency 800 Hz
Frequency Response (±3 dB) 20 Hz - 40 kHz
Coverage Angle 120° H x 100° V
Sensitivity 92 dB
Continuous/Peak SPL@ 1m 117 dB /123 dB; 108 dB Peak SPL @ 8m
The System Requires One Crown® iTech 5000HD power amp for each speaker, or One Crown® iTech 3x3500HD power amp for two (2) speakers.
Amplifier Power Rating 1,200 Watts into 8 ohms
Input Connectors Spring Terminals
Enclosure 25 mm (1 in) MDF
Finish Satin Black Lacquer
Included Removable ABS Grille with Black UL Compliant Fabric
Dimensions (w x h x d) 508mm x 1256mm x 355.6mm (20in x 49.5in x 14in)
Net Weight (each) 58.5 kg (129 lb)
Maximum Peak SPL 123 dB
Maximum Continuous SPL 117 dB