M2 Manual (5.
References in the manual WARNING! This refers to a potentially dangerous situation which may lead to personal injury. CAUTION! This refers to a potentially dangerous situation which may lead to damage to the equipment. IMPORTANT! This refers to a situation which may cause the equipment to malfunction. Symbols on the equipment Please refer to the information in the operating manual. WARNING! Dangerous voltage! General Information M2 Manual Version 5.0E, 10/2003, D2092.E.
Safety precautions Before you use our products, read the manual carefully and observe all the safety precautions. They will protect you and help to avoid equipment failures. Keep this manual in a safe place so that it is available for future reference. If you supply d&b products, please draw the attention of your customers to these safety guidelines. Enclose the relevant manuals with the systems. If you require additional manuals for this purpose, you can order them from d&b.
M2 The M2 is a 2-way active monitor employing two 12" LF drivers in an airflow optimized bass-reflex cabinet. It contains a 1.4" HF driver using a compact but extremely strong neodymium magnet assembly, mounted on a low distortion horn optimized for monitor applications. The M2 cabinet is constructed from marine plywood and has an impact resistant paint finish. The front of the loudspeaker cabinet is fitted with a rigid metal grill backed with a replaceable acoustically transparent foam.
Operation with D12 INPUT A OUT A 2-Way SenseDrive AMP A Selecting "2-Way Active" and M2 mode enables up to two M2 cabinets to be driven actively by the D12 amplifier. The input signal is fed to INPUT A, while the input signal is routed (linked) to INPUT B internally. OUT B 2-Way AMP B D12 Input/Output routing 2-Way Active mode IMPORTANT! To apply SenseDrive for the LF driver of both cabinets they should be linked together locally and connected to the output A connector of the D12 amplifier.
Operation with A1 Two M2 cabinets can be driven by a single A1 mainframe fitted with an M2 controller module. M2 CUT OV HI CUT switch The CUT setting is available. The characteristics of the CUT setting is explained under the previous section "Operation with D12 Controller settings". OV LO GR HI ID GR LO MUTE ISP 0 LFC level control The detented LFC control (Low Frequency Coupling) adjusts the systems low and low/mid response for the different operating environments of the M2 cabinet.
Frequency response The diagram below shows the frequency response of the M2 cabinet in floor monitor position, measured at a height of 1.7m (5.6 ft) (listening position in monitor operation) on axis: 10 5 0 -5 -10 -15 -20 -25 -30 20 100 1k 10k 20k M2 frequency response, monitor operation Technical specifications M2 system data Frequency response (–5 dB, free field) .................................................. 56 Hz - 17 kHz Frequency response (-5 dB, floor coupling) .....................
EU declaration of conformity (CE symbol) EU conformity of loudspeakers This declaration applies to loudspeakers manufactured by d&b audiotechnik AG and includes the types listed in the table below: − M2 Z0061 All production versions of these types are included, provided they correspond to the original technical version and have not been subject to any later design or electromechanical modifications.
