M4
d&b audiotechnik
M4
d&b audiotechnik M4 High-Performance Stage Monitor
This stage monitor employs an integrated 15”/1.3” exit coaxial driver design with neodymium magnet and constant directivity horn loading. Its dispersion of 50° x 70° (h x v) provides an accurately defined coverage area on stage. Used upright, it serves as a powerful front PA speaker (70° x 50°) for various applications.
The M4 is a two-way design with a built-in passive crossover network. It can optionally be operated in two-way active mode just by changing the configuration of the D12 amplifier without any modifications to the loudspeaker. Its frequency response extends from 55 Hz to above 17 kHz.
The monitor's cabinet is marine plywood with an impact-resistant paint finish. Its front is protected by a rigid metal grill and replaceable, acoustically-transparent foam. The side panels incorporate a pair of handles, a pole mount socket and four M10 threaded inserts for connection to different rigging devices and brackets. Two runners recessed in the bottom panel protect the cabinet from scratching and prevents movement. Mounted on the rear panel are two EP5 or NL4 connectors wired in parallel.
The M4 is a two-way design with a built-in passive crossover network. It can optionally be operated in two-way active mode just by changing the configuration of the D12 amplifier without any modifications to the loudspeaker. Its frequency response extends from 55 Hz to above 17 kHz.
The monitor's cabinet is marine plywood with an impact-resistant paint finish. Its front is protected by a rigid metal grill and replaceable, acoustically-transparent foam. The side panels incorporate a pair of handles, a pole mount socket and four M10 threaded inserts for connection to different rigging devices and brackets. Two runners recessed in the bottom panel protect the cabinet from scratching and prevents movement. Mounted on the rear panel are two EP5 or NL4 connectors wired in parallel.
Product Weight: 44 lbs
Dimensions: 22.83"W x 20.51"D x 14.30"H
Technical Tools
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Manufacturer Specs
System data
Frequency response (–5 dB): 55 Hz - 17 kHz
Max. sound pressure (1 m, free field)1
With D6 (passive mode): 134 dB
With D12 (passive mode): 138 dB
With D12 (active mode): 140 dB
Input level (100 dB SPL/1 m) passive/active: –22 dBu/–22 dBu
Passive mode: LF: – / HF: +
Active mode: LF: – / HF: –
Loudspeaker data
Nominal impedance: 8 ohms
Power handling capacity (RMS/peak 10 ms): 400/1600 W
Nominal dispersion angle (h x v): 50° x 70°
Components
15“ driver with neodymium magnet
Coaxial 1.3” exit compression driver with 3“ coil and CD horn
Passive crossover network
Connections: 2 x EP5, optional 2 x NL4
Pin assignments
EP5: 1: LF+/2: LF–/3: HF+/4: HF–
NL4: 1+: LF+/1–: LF–/2+: HF+/2–: HF–
Weight: 20 kg (44 lbs)
Frequency response (–5 dB): 55 Hz - 17 kHz
Max. sound pressure (1 m, free field)1
With D6 (passive mode): 134 dB
With D12 (passive mode): 138 dB
With D12 (active mode): 140 dB
Input level (100 dB SPL/1 m) passive/active: –22 dBu/–22 dBu
Passive mode: LF: – / HF: +
Active mode: LF: – / HF: –
Loudspeaker data
Nominal impedance: 8 ohms
Power handling capacity (RMS/peak 10 ms): 400/1600 W
Nominal dispersion angle (h x v): 50° x 70°
Components
15“ driver with neodymium magnet
Coaxial 1.3” exit compression driver with 3“ coil and CD horn
Passive crossover network
Connections: 2 x EP5, optional 2 x NL4
Pin assignments
EP5: 1: LF+/2: LF–/3: HF+/4: HF–
NL4: 1+: LF+/1–: LF–/2+: HF+/2–: HF–
Weight: 20 kg (44 lbs)