M4 stage monitor

M4 monitor front
M4 monitor front

M4 stage monitor

Stage Monitors

2-way stage monitor

  • Components 15"/1.3"
  • Dispersion 50° x 70° rotatable
  • max SPL 140 dB
  • Weight 20 kg / 44 lb

Product description

The M4 is a 2-way high performance stage monitor employing an integrated 15” LF and 1.3” exit horn loaded HF coaxial driver design that utilizes neodymium magnets. The constant directivity dispersion of 50° x 70° (h x v), which this unique horn provides, delivers an accurately defined coverage area on stage. The M4 can also be operated in 2-Way Active mode. When the cabinet is used in an upright position the M4 serves as a powerful PA loudspeaker with a 70° x 50° dispersion suitable for a variety of applications. For dedicated installation applications the dispersion characteristics of the M4 driver assembly can be rotated in 45° increments. The M4 cabinet is constructed from marine plywood, which incorporates the handles, has an impact resistant paint finish, M10 threaded inserts and a socket to accept loudspeaker stands. The front of the loudspeaker cabinet is protected by a rigid metal grill backed with an acoustically transparent foam. Two runners recessed in the bottom panel protect the cabinet from scratching and prevents movement.

Amplifiers

The d&b D20 and 30D amplifiers are recommended to drive the M4. The d&b D80, 10D and D6 can also be used. The M4 monitor can be driven in passive mode, requiring one amplifier channel. Alternatively, for increased headroom, the M4 can be driven in 2-Way active mode, using two channels of the D20, D80, 10D or 30D amplifiers. The recommended amplifiers for the M4 are the d&b D20 and 30D. The d&b D6, D80 and 10D amplifiers can also drive the M4 with the appropriate loudspeaker configuration selected.

D20

30D

Architectural specifications for detailed project planning

Do you require architectural specifications? For a d&b system or a specific d&b Series? Here are the most important technical specifications ready for download.

System data
Frequency response (-5 dB standard)
55 Hz - 17 kHz1
Max. sound pressure (1m, free field)2
with D6/10D
with D20/30D
with D80

134 dB3 / 135 dB4
138 dB3 / 140 dB5
138 dB3 / 140 dB5
Cabinets per amplifier channel (passive mode)
2
Cabinets per D20/D80 (active mode)
4
Loudspeaker data
Configuration
2-way stage monitor
Nominal impedance
8 Ω
Power handling capacity (RMS/peak 10 ms)
400/1600 W
Nominal dispersion angle (h x v)
50° x 70° rotatable
Components
15" driver with neodymium magnet
coaxial 1.3" exit compression driver with 3" coil and CD horn
passive crossover network
Connections
2 x NLT4 F/M
optional 2 x EP5 or 2 x NL4
Dimensions / weight
Dimensions (H x W x D)
363 x 580 x 505 mm6
14.3 x 22.8 x 19.9" 2
Weight
20 kg
44 lb

1 with floor coupling
2 SPL max peak test signal: pink noise with crest factor 4
3 passive mode
4 active mode (10D only)
5 active mode
6 overall dimensions (projected footprint)

Application information is presented for guidance only. d&b reserves the right to make any necessary changes to the products and the published specifications. As part of the ongoing development program d&b tries to maintain the highest degree of product compatibility.

 
Release
Category
File type
Size
Language
 
M4 Manual 2.2
06.06.2018
Manuals
PDF
747 KB
English
3D CAD drawings - M4
11.05.2018
CAD Data 2D/3D
ZIP
575 KB
2D CAD drawings - M4
09.05.2018
CAD Data 2D/3D
ZIP
267 KB
EU Declaration of Conformity (CE)
06.03.2018
Other documentation
PDF
53 KB
English
The stage monitors brochure
04.01.2017
Brochures
PDF
4 MB
English
Stage monitors configurations examples
25.03.2015
Brochures
PDF
483 KB
English
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