Bose 251 Environmental Specifications

Weather-resistant brackets and hardware withstand the rigours of year-round outdoor placement.
Mineral and glass-filled polypropylene cabinet provides added durability against extreme conditions.
Syncom computer tested to ensure one of the highest levels of quality and reliability in the audio industry.
One woofer (13.3 cm) in a proprietary multi-chambered enclosure produces deep, full low frequencies, with minimal audio distortion.
Articulated Array speaker design includes precisely positioned drivers to provide a large, consistent sound field for outdoor listening.
Two full-range drivers (6.4 cm) positioned in an Articulated Array speaker design provide consistent, lifelike sound over a large listening area.
Woofers (13.3 cm) with polymer fibre composite cone and butyl rubber surround deliver high quality sound from a speaker that resists deterioration under extreme conditions.