The Bose MA12EXB is a weather-resistant modular line array loudspeaker finished in black. It is designed for both indoor and outdoor permanent installations where wide horizontal coverage and high speech intelligibility are essential. With extended frequency response and a slim, unobtrusive design, the MA12EXB is ideal for houses of worship, auditoriums, transit facilities, and multipurpose venues.
Key Features
- Modular line array with 12 × 2.25″ full-range drivers
- Extended frequency response compared to the standard MA12
- 160° horizontal coverage
- Slim column design for architectural integration
- Weather-resistant construction (indoor/outdoor rated)
- Black finish (B = Black; also available in White as MA12EXW)
- Can be combined with coupler brackets (CBMA12EX) for taller arrays
Specifications
- Frequency Response (-10 dB): ~80 Hz – 16 kHz
- Coverage: 160° horizontal × 20° vertical (per module)
- Power Handling: 300 W continuous (IEC)
- Sensitivity (SPL / 1W @ 1m): ~90 dB
- Maximum SPL: ~102 dB (per module)
- Nominal Impedance: 8 Ω
- Drivers: 12 × 2.25″ (57 mm) full-range
- Color: Black


















