Bose MB4 Modular Bass Module

• Unique 4 x 5.25" (133 mm) high-excursion woofer configuration provides deep bass to 35 Hz with fast transient response
• Modular design allows stacking of multiple enclosures for increased maximum sound levels

MB4 Modular Bass Module Specifications:

• System Performance
• Frequency Response: (+/-3 dB)1 45 Hz - 310 Hz
• Frequency Range :(-10 dB)1 35 Hz - 350 Hz
• Nominal Dispersion: Omni-directional below 200 Hz
• Recommended High-Pass Filter: 30 Hz high-pass filter
• Overload Protection: PTC/Lamps (2)
• Long-Term Power Handling: 2 200 W (800 W peak)
• Sensitivity: (SPL / 1 W @ 1 m)3 87 dB SPL
• Maximum SPL @ 1 m4: 110 dB SPL (116 dB SPL peak)
• Nominal Impedance: 8 Ω
•  
• Transducers
• Driver Compliment: Four (4) 5.25" (133 mm) low-frequency drivers
•  
• Physical
• Enclosure: High-density wood composite with solid color PVC laminate, high-impact polypropylene end caps
• Grille: Powder-coated steel grille
• Environmental: Indoor use only
• Connectors: Two (2) parallel-wired NL4 Neutrik® Speakon® connectors
• Suspension / Mounting: Four (4) M8 threaded inserts (2 top, 2 bottom)
• Dimensions: 26.7" H x 10.2" W x 18.2" D (678 mm x 260 mm x 463 mm)
• Net Weight: 45 lbs (20 kg)
• Shipping Weight: 62 lbs (28 kg)