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251® environmental speakers

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Our best wall-mount outdoor speakers

Music is made for the outdoors, so make sure getting the most from it. Experience balanced stereo sound over a much wider area than most conventional outdoor speakers can offer. Our 251 speakers deliver that sound with a refined design that adds a touch of elegance to your outdoor spaces. They’re guaranteed to withstand harsh weather.

  • Extremely wide sound field for larger outdoor areas
  • Outside speaker cabinet designed to reproduce low frequencies with minimal audio distortion
  • Tested to withstand snow, rain, salt and extreme temperatures
  • Weather-resistant brackets and hardware included

Mount 251 outdoor stereo speakers to your exterior walls, connect to your stereo components, and enjoy quality Bose sound as you move around your yard.

Speakers that have you covered

With conventional outside speakers, stereo sound can be heard in only a few "sweet spots" and not all around your patio, pool or yard. And they often can't reproduce the low frequencies that provide impact.

Bose 251 speakers use an Articulated Array® speaker design to produce an extremely wide sound field. Each speaker cabinet houses two drivers set at precise angles so you experience consistent stereo effects as you move around outdoors. And the unique multi-chambered design of the Bose 251 exterior speaker cabinet minimizes audible distortion from low frequencies, for sound with clear, natural impact.

Bose outdoor speakers are designed for harsh conditions. These weather resistant speakers are engineered and tested to withstand snow, rain, salt and temperature extremes of 140° F to -22° F. They are also protected by a five-year limited warranty.


  • Articulated Array® speaker design includes precisely positioned drivers to provide a large, consistent sound field for outdoor listening.
  • Bose environmental testing simulates exposure to sunlight, rain, heat, ice, salt and water—proof of the extreme conditions these outdoor speakers can endure and still deliver reliable, long-lasting performance.
  • Multi-chambered enclosure is uniquely structured to minimize audible distortion from low frequencies. You can enjoy clear, natural sound from an outside speaker enclosure that easily mounts to walls in your deck, garden or pool area.
  • One woofer (5.25") in a proprietary multichambered enclosure produces deep, full low frequencies, with minimal audio distortion.
  • Twiddler® drivers (2.5") with glass composite cone and silky light surround deliver clear, high frequencies from a speaker that resists deterioration under extreme conditions.
  • Two full-range drivers (2.5") positioned in an Articulated Array® speaker design provide consistent, lifelike sound over a large listening area.
  • Mineral and glass-filled polypropylene cabinet provides added durability against extreme conditions.
  • Woofers (5.25") with polymer fiber composite cone and butyl rubber surround deliver high quality sound from a speaker that resists deterioration under extreme conditions.
  • Weather-resistant brackets and hardware withstand the rigors of year-round outdoor placement.
  • Syncom® computer tested to ensure one of the highest levels of quality and reliability in the audio industry.
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  • Each speaker:13.5" H x 5.75" W x 8" D (8 lbs)

In the box

  • 2 Speakers
  • Mounting hardware (8 screws and 8 plastic anchors)
  • Self-adhesive rubber feet
  • 4 Knobs
  • 2 Brackets

Other items you may need

  • Speaker wire (For help choosing the appropriate gauge, see the owner's manual.)


Can I mount the speakers horizontally and vertically?

251 speakers are designed for vertical mounting only.

What conditions and temperature extremes can these speakers withstand?

251 speakers are designed to withstand:

  • Sun, high humidity (rain and snow), salt and fog
  • Temperature extremes (-40° F to 158° F; -40° C to 70° C) 
  • Permanent outdoor installation

Can these speakers be combined with my Lifestyle® system?

Yes. You can use your 251 speakers with the SA-3 amplifier to expand your Lifestyle® system outdoors.

What is the warranty on these speakers?

251 speakers carry a five-year limited warranty.



Owners Guide