MB12 / MB12 WR

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)
91 dB SPL

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

Long-Term Power Handling
400 W (1600 W peak)

Nominal Impedance
8 Ω

Applications

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

Key Features

• 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

• 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

Physical

Enclosure
Baltic birch plywood, 13-ply, 18 mm
(Exterior grade for MB12 WR)

Environmental
MB12: Indoor use only
MB12 WR: Outdoor per IEC 529 IPX5

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 (stainless steel for MB12 WR)

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)

Color
Black, White, Paintable (MB12 WR available in black only)

Package Contents
1 Loudspeaker