Page 1
2 CAUTION: The Bose
® Panaray MA12EX Modular Line Array Loudspeaker System
contains no user-serviceable parts. To prevent warranty infractions,
refer servicing to warranty service stations or factory service.
PROPRIETARY INFORMATION
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OF
BOSE CORPORATION WHICH IS BEING FURNISHED ONLY FOR
THE PURPOSE OF SERVICING THE IDENTIFIED BOSE PRODUCT
BY AN AUTHORIZED BOSE SERVICE CENTER OR OWNER OF
THE BOSE PRODUCT, AND SHALL NOT BE REPRODUCED OR
USED FOR ANY OTHER PURPOSE.
The Bose Panaray MA12EX Modular Line Array Loudspeaker System is covered by a 5-year
transferable limited warranty.
Warranty Contents
Warranty ............................................................................................................................................. 2
Specifications .................................................................................................................................... 3
Product Description .......................................................................................................................... 3
Accessories Used with the MA12EX Loudspeaker System .......................................................... 3
Part List Notes ................................................................................................................................... 3
Packaging Part List, Panaray
® MA12EX Loudspeaker System (see Figure 1) ............................ 4
Figure 1. Panaray MA12EX Loudspeaker Packaging View ............................................................. 4
Packaging Part List, Panaray MA12EX Transformer Accessory (see Figure 2) .......................... 5
Figure 2. Panaray MA12EX 70/100V Transformer Accessory Packing View ...................................5
Main Part List, Panaray MA12EX Loudspeaker System (see Figure 3) ........................................ 6
Figure 3. Panaray MA12EX Loudspeaker System Exploded View ..................................................7
Main Part List, Panaray CVT-MA12EX Transformer Accessory (see Figure 4) ............................ 8
Figure 4. Panaray CVT-MA12EX 70/100V Transformer Accessory Exploded View .........................8
Disassembly Procedures ........................................................................................................... 9-10
MA12EX Loudspeaker ...................................................................................................................... 9
CVT-MA12EX Transformer Accessory ........................................................................................... 10
Test Procedures .............................................................................................................................. 11
Figure 5. Panaray MA12EX Test Setup Diagram ...........................................................................11
Figure 6. Panaray MA12EX Loudspeaker Wiring Diagram ............................................................12
Service Manual Revision History ................................................................................................... 13
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3
Specifications
External Dimensions: 38.75 x 4.125 x 5.5 in. (978 x 107 x 130 mm)
Weight:Single Speaker: 21.5 lb. (10 kg)
Packed System: 24 lb. (11 kg)
Sensitivity: 87dB SPL, 75 Hz - 15 kHz (1W/1m free space)
System Protection: None
Impedance: 8 Ohms nominal, 7.5 Ohms minimum
Power Handling: 150 Watts continuous per IEC-268-5, 75 Hz high pass,
96 hours. Recommended amplifier power 150-300 Watts
The Bose
® Panaray ® MA12EX Modular Line Array Loudspeaker System is a modular system
used for full range sound reproduction. It is a vented enclosure design using 12 full range 2.25
drivers housed in a closely spaced line.
The loudspeaker provides a means for mechanical attachment of two units to form a rigid single
line source by using the CB-MA12EX coupling bracket (see table below). Each loudspeaker has
two Neutrik
® connectors and two barrier style terminals so that multiple units can be connected
as a system in series and parallel.
The Bose Panaray MA12EX Loudspeaker can be used with the Bose Panaray MB4 Modular
Bass Loudspeaker for dynamic full range reproduction.
Accessories Used with the MA12EX Loudspeaker System
Part List Notes
1. This part is not normally available from Customer Service. Approval from the Field Service
Manager is required before ordering.
2. The individual parts located on the PCBs are listed in the Electrical Part List.
3. This part is critical for safety purposes. Failure to use a substitute replacement with the
same safety characteristics as the recommended replacement part might create shock, fire
and/or other hazards.
4. This part is referenced for informational purposes only. It is not stocked as a repair part. Refer
to the next higher assembly for a replacement part.
Description Part Number
CVT-MA12EX, TRANSFORMER, 70/100V, BLACK 315338-0100
CVT-MA12EX, TRANSFORMER, 70/100V, WHITE 315338-0200
CB-MA12EX, COUPLING BRACKET, BLACK 317088-0100
CB-MA12EX, COUPLING BRACKET, WHITE 317088-0200
WMB2-MA12/MA12EX PITCH LOCK UPPER BRACKET, BLACK 318337-0100
WMB2-MA12/MA12EX PITCH LOCK UPPER BRACKET, WHITE 318337-0200
WMB-MA12/MA12EX, BI-PIVOT BRACKET, BLACK 318338-0100
WMB-MA12/MA12EX, BI-PIVOT BRACKET, WHITE 318338-0200
WB- MA12/MA12EX, PITCH ONLY BRACKET, BLACK 318418-0100
WB- MA12/MA12EX, PITCH ONLY BRACKET, WHITE 318418-0200
Product Description
