d&b audiotechnik M4 monitor

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 pane...l protect the cabinet from scratching and prevents movement.
Data
System data  
Frequency response (–5 dB standard)
55 Hz - 17 kHz 4
Max. sound pressure (1m, free field)1 with D6/10D with D20/30D with D80
134 dB7 / 135 dB 17 138 dB7 / 140 dB 8 138 dB7 / 140 dB 8
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 mm 2
Weight
20 kg
1 SPL max peak test signal: pink noise with crest factor 4
2 overall dimensions (projected footprint)
4 with floor coupling
7 passive mode
8 active mode
17 active mode (10D only)
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.

VIAC