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d&b M4 monitor


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Limited warranty
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d&b’s Stage monitorscan seriously enhance the performance of the artist and the success of a production. That’s why d&b has always maintained that there should be no difference in the quality of sound between front of house and the stage. Consequently the d&b Stage monitors have not only a low profile cabinet design for use in visually sensitive situations, but also remarkable vocal presence and clarity and more than adequate power. With the well defined dispersion control the systems guarantee a high feedback stability realizing an efficient tool and a neutral platform for the engineer and artist alike.


d&b’s M4 is a 2-way high performance stage monitor that adopts a 15 "LF driver using neodymium magnet and Horn load 1.3" HF exit · coaxial driver. A fixed dispersion of 50 ° × 70 ° (horizontal × vertical) produced by this unique horn will accurately define the cover area on the stage. "M4" can also be operated in 2-way active mode. If you use the cabinet in a vertical position, "M4" will be a powerful PA loudspeaker with 70 ° × 50 ° dispersion suitable for various uses. For permanent use, the dispersion characteristic of "M4" driver assembly can be rotated in 45 degree steps. The "M4" cabinet is made of shipboard plywood, with a built-in handle, it is shock-resistant painted finish. You can attach to the speaker stand with M10 screw hole insert and socket. The front of the cabinet is protected by a solid metal grill lined with foam material that has no acoustic influence. Two recessed runners on the bottom protect the cabinet from scratches and prevent displacement. 

M4 data

Frequency response (-5 dB standard)

55 Hz to 17 kHz (including floor · coupling)

Maximum sound pressure level (1 m, free field) 
SPL maximum peak test signal: pink noise of crest factor 4

When using D6 / 10D: 134 dB (passive mode) When 
using D 12 / D 20/30 D: 138 dB (passive mode) / 140 dB (active mode) When using D 
80: 138 dB (passive mode) / 140 dB (Active mode)

Number of drive cabinets for each amplifier channel (passive mode)


D12 Number of cabinets per amplifier (active mode)


D80 Number of cabinets per amplifier (active mode)


Loudspeaker data


2 way stage monitor

Rated impedance

8 Ω

Power handling ability (RMS / peak 10 ms)

400/1600 W

Rated dispersion angle (horizontal × vertical)

50 degrees × 70 degrees, rotatable


Neodymium magnet use 15 "Driver 
3" Coil and CD horn use Coaxial 1.3 "Exit · Compression · Driver 
Passive · Crossover · Network


2 × NLT 4 F / M, optionally 2 × EP 5 or 2 × NL 4

Dimensions and weight

Dimensions (H × W × D, including protrusions)

363 × 580 × 505 mm


20 kg



Product Videos

Dave Rat Testing Gain Before Feedback on EAW MicroWedge, L-Acoustics and D&B Wedges 09:32 Dave Rat spent many years designing the MicroWedge monitors. Here he does some 'gain before feedback' testing on D&B Audiotechnik M2, L-Acoustics 115XT HiQ, EAW MicroWedge 12 and EAW MicroWedge 15 stage monitors.

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Other Details

Limited warranty
Sales Questions?:

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