M4 Architectural specifications

The 2-way, passive stage monitor shall consist of a integrated 15"/1.3" coaxial driver combination with a passive crossover, using a single magnet assembly, providing a conical 70° constant directivity HF dispersion.
2-way active operation shall also be applicable.

The cabinet shall be constructed from marine plywood with an impact resistant paint finish. The front of the loudspeaker cabinet shall be protected by a rigid metal grill in front of an acoustically transparent foam. Each side panel shall incorporate a handle while four M10 threaded inserts shall allow connection to different rigging devices and brackets. A pole mount shall be incorporated in one side panel to accept a loudspeaker stand. Two runners shall be recessed in the bottom panel to prevent cabinet movement and protect the bottom panel against scratching.

The cabinet shall be fitted with NLT4 F/M connectors. EP5 connectors shall be available upon request.

The loudspeaker shall only be operated by a dedicated, compatible controller amplifier.
The power handling capacity shall be 400 W RMS and 1600 W peak (10 ms). The frequency response (–5 dB) measured on axis shall be 55 Hz to 17 kHz with a maximum sound pressure of at least 138 when driven passively and 140 dB when driven actively.

The dimensions (W x H x D) shall not exceed 580 x 363 x 505 mm (22.83" x 14.30" x 19.88" ) and shall weigh no more than  kg ( lb).

The loudspeaker shall be the M4 by: d&b audiotechnik GmbH & Co. KG.