
MPA Series User Manual v1.2 3
Safety Information ........................................ 4
Safety Notes regarding Installation ........................4
Conformities .................................................. 4
Safety Considerations and Information ................4
Caution - High Voltages ............................................4
Caution - Mains Fuse ................................................4
Caution - Servicing .................................................... 4
General Description ...................................... 5
Schematic Diagram ...................................... 5
Front Panel Description ............................... 6
Rear Panel Description ................................. 6
Music Inputs ................................................... 7
Sensitivity & Gain Control ....................................... 7
Music Source Select .................................................. 7
Music Level Control .................................................. 7
Remote Control of Music Source .........................7
Select and Level .......................................................... 7
Music Equalisation ......................................... 8
Music Priority ................................................ 8
Microphone Inputs ........................................ 8
Gain Control ............................................................... 8
Microphone Access Input ......................................... 8
Front Panel Microphone Level Controls ..... 8
Microphone Equalisation .............................. 8
Microphone Priority ...................................... 9
Microphone over music priority ............................9
Mic 1 over Mics 2-4 priority ................................... 9
Chime ............................................................. 9
Power Amplier Stage and Outputs............ 9
Line Output .................................................................9
Low impedance operation ....................................... 9
High pass lter .......................................................... 10
Music Mute(Fire Alarm Interface) ............. 10
Bose® Equalisation Modules ..................... 10
Installation Instructions ..........................................10
General Notes ............................................. 11
Multi-zone Applications ..........................................11
EMC Considerations ............................................... 11
Earthing ......................................................................11
Ventilation .................................................................. 11
Technical Specications .............................. 12
Location of internal jumpers, etc. .............. 13
Factory Default Jumper Settings ...........................13
Contents
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