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Key Features
- For Bass-Array Applications
- For Use with Bose LT Arrays
- 1 x 12" High-Excursion Woofer
Key Features
- For Bass-Array Applications
- For Use with Bose LT Arrays
- 1 x 12" High-Excursion Woofer
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Become an ADI CustomerKey Features
- For Bass-Array Applications
- For Use with Bose LT Arrays
- 1 x 12" High-Excursion Woofer

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Overview
Specifications
Documents
Product Overview
The black MB12 from Bose is a modular bass loudspeaker designed to provide bass augmentation for Bose LT arrays and other subwoofer applications. The Baltic birch enclosure features a single 12" high-excursion woofer with a 4" voice-coil and a power handling of 400W RMS (1600W peak). The subwoofer offers a frequency response of 40 to 280 Hz and features a front-loaded transmission line design that provides a peak-free extended low-frequency, reducing port turbulence distortion.
Main Features
- For Bass-Array Applications
- For Use with Bose LT Arrays
- 1 x 12" High-Excursion Woofer
- 40 to 280 Hz Frequency Response
- 123 dB Peak SPL
- 400W RMS, 1600W Peak Power Handling
- Front-Loaded Tapered Transmission Line
- Reduced Port Turbulence Distortion
General Information
Name: Bose Professional 40173 Speaker, MB12 III Bass, Black
Category: Bose Professional, Pro AV, Commercial Audio, Pro Speakers
UPC Code: 017817391634
Country of Origin: China. Country of origin is subject to change.
Specifications
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ADI Part Number 1B-40173 Brand Name Bose Professional Manufacturer Bose Corporation Manufacturer Part Number 40173 Product Model 40173 Product Name Bose Professional MB12 Modular Bass Loudspeaker (Black) Product Series MB Product Type Speaker weight 78 lb
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Impedance 8 ohms Sensitivity 91 dB
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Maximum Frequency Response 280 Hz Minimum Frequency Response 36 Hz RMS Output Power 400W
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Sound Emission 123 dB
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Color Black Weight (Approximate) 78 lb
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Features 1 x 12" High-Excursion Woofer, 123 dB Peak SPL, 40 to 280 Hz Frequency Response, 400W RMS, 1600W Peak Power Handling, For Bass-Array Applications, For Use with Bose LT Arrays, Front-Loaded Tapered Transmission Line, Reduced Port Turbulence Distortion