The Bose Panaray MB4 is a compact low-frequency loudspeaker designed primarily to provide bass augmentation for Bose Panaray and DS systems in small to medium-size indoor permanent installations. It can also be used as portable sound reinforcement.
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
