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Bose MB4 Modular Bass Loudspeaker (pieza) Negro

Código: 02-MB24III-BK

Compact 2 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.

MB24 for indoor applications only.



Low-frequency reinforcement for Bose® 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

2 x 12" (305 mm) high-excursion woofer with 4" (102 mm) voice-coil and 800 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


  • Stadiums
  • Arenas
  • Houses of worship
  • Auditoriums
  • Performing arts venues


Technical Summary

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)
94 dB SPL

Maximum SPL @ 1 m
123 dB SPL (129 dB SPL peak)

Long-Term Power Handling 
800 W (3200 W peak)

Nominal Impedance
4 Ω

Mechanical Diagrams

Front View

Top View

Side View

Product Codes