Bose 251 Outdoor Environmental Speakers (Black)


Bose 251 Specs

Speaker System
Power Handling 100 W
Drivers 2.5″ / 6.35 cm Full-Range
5.25″ / 13.3 cm Full-Range
Frequency Response 10 Hz to 200 kHz
Impedance 8 Ohms
Wired Connectivity Terminal Block
Sensitivity 88 dB
Cabinet Material Polypropylene
Dimensions 5.8 x 13.5 x 8″ / 14.6 x 34.3 x 20.3 cm
Weight 8.0 lb / 3.6 kg (Each)
Packaging Info
Package Weight 21 lb
Box Dimensions (LxWxH) 17 x 16 x 12″


The Bose 251 Environmental Speakers deliver full, rich sound for your listening pleasure on the deck, by the pool or on the porch. Built to withstand the elements, these award-winning speakers provide reliable, year-round performance that will have you humming in the sun or singing in the rain.

Two 2 1/2″ Twiddler™ drivers in an Articulated Array® speaker design

Lifelike stereo sound over a larger listening area instead of in one small “sweet spot” as with conventional speakers.

One 5 1/4″ woofer in a patented multi-chambered bass enclosure

Uniquely structured, the chambers within this patented design filter out unwanted audible distortion in the low-frequency range. They also improve speaker efficiency, resulting in deeper bass from a small enclosure.

Talc- and glass-filled polypropylene cabinet

Added durability against extreme conditions.
Patented multi-chamber bass enclosure for deep bass without audible distortion.
Engineered to withstand snow, sun, rain, ice and saltwater spray.


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