Biamp MAII User Manual

MAII (Module Adapter) - Instructions

The MAII Module Adapter provides mounting, power and audio connections for BOSE
1B, 402, 502, & 802). The MAII allows these cards to be used economically in ‘stand-alone’ applications with BIAMP IWA250 in-wall
powered mixers, BIAMP MXA Series mixer/amplifiers, or virtually any other sound system.

The MAII Module Adapter consists of a small metal box, with an internal circuit board and an external power transformer. The internal
circuit board includes an edge-connector, which will provide power & audio to the EQ card circuit board. The MAII power transformer is

connected via a 5-pin DIN connector. To install an EQ Card

: Remove the 4 screws from the top cover of the MAII, and remove the top
cover. Insert the EQ card into the MAII, making sure the circuit board is pushed fully into the edge-connector. Replace the top cover and
the 4 screws. The MAII may be screw-mounted to any surface, using the keyholes provided on the rear panel. Connect the MAII power
transformer to AC power. Make audio input & output connections at the MAII unbalanced RCA jacks. Power up the sound system.

EQ card audio signals are unbalanced, and are connected (via the MAII RCA Input and Output jacks) between the source (preamp/mixer)
and the output (amplifier) of a sound system. When used with IWA Series in-wall powered mixers, connect the MAII at the IWA Main (or
Zone) patch point, with Main (or Zone) Out to the MAII Input, and the MAII Output to the respective IWA EQ In. When used with MXA
Series mixer/amplifiers, connect the MXA Pre Out to the MAII Input, and the MAII Output to the MXA EQ In. Likewise, a module may be
connected between the source & amplifier of virtually any system.

The MAII receives 27 Volts AC from its external power transformer, and provides ±12 Volts DC to the installed EQ card (Pin 1 = +12Volts;
Pin 2 = -12 Volts). The MAII provides signal input/output and ground to the installed EQ card (Pin 4 = signal input; Pin 5 = signal output;
Pins 3, 6, & 8 = ground). When loaded with a module, the MAII will provide a maximum current of 500 mA and will have a power
consumption of less than 2 Watts.

®

AmPlus Series EQ cards (Models 8, 25, 32, 102,

MA

II

INPUT

power

OUTPUT

BIAMP SYSTEMS

designed and assembled in the USA

27V

~

50/60 Hz

15 watts

class 2 wiring

TO REDUCE THE RISK OF FIRE OR

SHOCK, DO NOT EXPOSE TO MOISTURE.

www.biamp.com

WARNING:

BOSE® is a registered trademark of Bose Corporation

16Feb07

585.9147.90A