JBL M2 Main Reference Monitor

JBL Professional M2 - 2-Way Main Reference Monitor with Image Control Waveguide and 20 Hz to 40 kHz Response

The JBL Professional M2 Master Reference Monitor is a passive, 2-way main reference monitoring system that combines a 15” Differential Drive 2216Nd woofer with the D2 D2430K compression driver in an Image Control waveguide . Engineered for low distortion and high dynamic range, it delivers room response from 20 Hz to 40 kHz and a maximum SPL of 123 dB , meeting the demands of music, film and broadcast production with true dynamic range. Constructed from 25 mm MDF with internal bracing and a Slipstream port , the enclosure maintains rigidity and minimizes turbulence noise for extended, controlled bass.

The M2 is designed for DSP bi-amping using official tuning files for Crown I-Tech or BSS Soundweb London . The crossover between channels is achieved at 800 Hz , with uniform directivity of 120° H × 100° V and a sensitivity of 92 dB , resulting in stable imaging and smooth response within the listening window. Its small footprint allows for freestanding or soffit installation in compact rooms without sacrificing large-format performance.

Main features

• 2-way bi-amplified architecture with DSP : D2 D2430K HF motor and 15” 2216Nd woofer with Differential Drive technology.
• Image Control waveguide : consistent directivity and precise soundstage over a wide listening area.
• Reference Response and Dynamics : 20 Hz–40 kHz (±3 dB in room), 117 dB SPL continuous / 123 dB peak .
• DSP-optimized 800Hz crossover for minimal distortion and seamless transition between tracks.
• High-performance acoustic enclosure : 25mm MDF, braced, with low-turbulence Slipstream port .
• Flexible installation : free-standing or flush-mounted (soffit) ; separate HF/LF spring terminals for bi-amplification.
• Professional Integration : Official tuning files for Crown I-Tech 5000HD / 4×3500HD and BSS Soundweb .
• Satin black finish with removable ABS grille .

Product benefits

• Reference Accuracy : The D2 + Image Control Waveguide combination maintains neutral tonality both on-axis and off-axis.
• True Dynamic Range : 123 dB peak and low power compression for mixing and decision making at demanding work levels.
• Extended bass without a sub : The 15” 2216Nd provides extension down to 20 Hz in the room, reducing the need for additional subwoofers in many applications.
• Room Consistency : Official tunings and DSP room EQ ensure predictable results in different control environments.
• Small footprint : Optimized dimensions for modern main rooms without sacrificing large-screen performance.

Use cases

• Primary monitoring in control rooms for music, film, and post-production/broadcast.
• Compact rooms requiring high SPL, stable imaging and deep bass with a reduced footprint .
• Soffit-mount or floor-standing installations with integration into Crown/BSS systems.

Frequently Asked Questions

• Does the M2 require external amplification and DSP? Yes. It's designed for bi-amping with official tuning files (e.g., Crown I-Tech 5000HD per speaker or I-Tech 4x3500HD for two speakers; also compatible with BSS Soundweb London ).
• Do you need a subwoofer? In many environments, it's not necessary, thanks to the 2216Nd 's bass extension into the lower audible range.
• Can it be recessed? Yes, the M2 is designed for soffit or freestanding installation.
• What coverage does it offer? 120° (H) × 100° (V) , ideal for maintaining a uniform response across the work area.

Description for projects

Passive 2-way main reference monitor with bi-amplification and external DSP. Transducers: HF D2 D2430K (dual diaphragm/voice coil, compression) and LF 2216Nd (15″, Differential Drive ). Image Control waveguide. Electronic crossover at 800 Hz . Response (±3 dB): 20 Hz–40 kHz . Coverage: 120° H × 100° V. Sensitivity: 92 dB . Max. SPL: 117 dB continuous / 123 dB peak at 1 m. Requires 1,200 W/8 Ω per speaker ( Crown I-Tech 5000HD or I-Tech 4×3500HD recommended for two). Spring-terminal inputs (HF/LF). 25 mm MDF enclosure with Slipstream port. Satin black finish. Dimensions (W × H × D): 508 × 1256 × 355.6 mm . Net weight: 58.5 kg per unit.