Bose 251 Outdoor Speakers

The Bose 251 Environmental Speakers are passive outdoor audio units engineered to deliver high-fidelity stereo sound across open-air spaces such as patios and decks. Central to their performance is Bose's Articulated Array speaker design, which specifically angles two 2.5-inch Twiddler drivers inside each cabinet to disperse a wide, consistent soundstage. This configuration successfully eliminates the narrow audio "sweet spot" typically associated with conventional outdoor speakers, allowing listeners to experience balanced audio as they move around. Additionally, each speaker incorporates a 5.25-inch woofer housed in a patented multi-chambered enclosure, a design that filters out audible distortion while maximizing low-frequency bass output from a relatively compact footprint.

Constructed for permanent outdoor installation, the 251 speakers feature rugged, talc- and glass-filled polypropylene cabinets designed to survive harsh environmental conditions. The units undergo rigorous testing to ensure they can withstand snow, ice, rain, and prolonged exposure to saltwater spray. They maintain optimal functionality in extreme temperature shifts, operating safely from -22°F to 140°F. Equipped with dedicated, weather-resistant brackets and hardware for straightforward vertical mounting, these speakers provide a highly durable, year-round audio solution for residential and commercial outdoor setups.