The d&b M4 is the industry-standard monitor for high-spec corporate events, festivals and touring musicians.

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 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.