Continue Shopping View Cart
Markertek - The Future of Broadcast Supply

Call 800-522-2025
M-F 8:30am - 7pm EST

Free Shipping Promo Box

FREE SHIPPING No Minimum Order!

SHOP MARKERTEK EVERYDAY for all of your needs. Free shipping on almost every order placed on our website.
Special order & oversized freight intensive items ship at an additional cost. Continental US orders only.
Ask about our new Economy International Shipping Options.

Secure LoginClose X

Returning Markertek Customers

New Markertek Customers

Why Create an Account?

Creating a Markertek account now will save you time on future orders. You'll have full access to your order history and a personalized shopping experience.

Bose MB12 III Modular Bass Loudspeaker - White
  • Bose MB12 III Modular Bass Loudspeaker - White
  • Bose MB12 III Modular Bass Loudspeaker - White
  • Bose MB12 III Modular Bass Loudspeaker - White
Questions? Ask a Markertek Expert:
800-522-2025 Email

Bose MB12 III Modular Bass Loudspeaker - White

Manufacturer: Bose Corporation

Item #: BOSE-40174   •   MFG #: MB12

We are an authorized dealer for this series; however, the manufacturer does not permit online sales. Please contact a sales engineer at 1-800-522-2025 to complete your purchase.
  • Special Order Item: non-cancelable, non-returnable, non-refundable.



The Bose MB12 has a compact 1 x 12" (305 mm) configuration designed to provide bass augmentation for Bose LT arrays and other subwoofer applications. Allows minimal-height arrays when used with LT mid/high loudspeakers.


Houses of worship
Performing arts venues
Outdoor event venues

The MB12 is for indoor applications only.

  • Features

    • Low-frequency reinforcement for Boser LT arrays and other subwoofer applications that require 40 - 280 Hz bass response
    • Front-loaded tapered transmission line design provides peak-free extended low-frequency response, and reduces port turbulence distortion
    • 1 x 12" (305 mm) high-excursion woofer with 4" (102 mm) voice-coil and 400 W long-term power rating provides high SPL with fast transient response
    • Compact enclosure optimized for bass-array applications when cardioid or other directional-bass configurations are required for reverberant spaces
  • Specifications

    • Frequency Response (+/-3 dB): 40 Hz - 280 Hz
    • Frequency Range (-10 dB): 36 Hz - 290 Hz
    • Nominal Dispersion: Omni-directional below 200 Hz
    • Sensitivity (SPL / 1 W @ 1 m) : 91 dB SPL
    • Maximum SPL @ 1 m: 117 dB SPL (123 dB SPL peak)
    • Crossover Frequency: none (external DSP crossover required)
    • Recommended High-Pass Filter: 30 Hz(24 dB / octave)
    • Loudspeaker EQ: Required
    • Long-Term Power Handling: 400 W (1600 W peak)
    • Nominal Impedance: 8 Ohm
    • Driver Compliment LF: 12" (305 mm) woofer with 4" (102 mm) voice-coil
    • Enclosure: Baltic birch plywood, 13-ply, 18 mm
    • Finish: Polyurethane-based textured paint, black or white
    • Grille: 16-gauge perforated steel grille with powder-coated finish
    • Environmental: Indoor use only
    • Connectors: Two (2) parallel-wired NL4 Neutrik Speakon connectors
    • Suspension / Mounting: Sixteen (16) points SAE 3/8" - 16 threaded inserts (4 each, top, bottom and sides), steel
    • Dimensions: 14.7" H x 20.0" W x 25.4" D (374 mm x 508 mm x 646 mm)
    • Net Weight: 78 lb (35.4 kg)
    • Shipping Weight: 92 lb (41.6 kg)
    • Package Contents: 1 Loudspeaker

Add Accessories for your MB12: