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Bose® Free Space® 51 Environmental Speakers

Item#:  B55-1056  | Model#: 31763

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Bose® Free Space® 51 Environmental Speakers Product Details

Bose® Free Space® 51 Environmental Speakers
Now you can enjoy the pleasures of your favorite music practically anywhere in your yard, thanks to our most versatile outdoor speaker. On your patio or by your pool, on your deck or in your garden, the Bose® Free Space® 51 speaker delivers a level of sound quality unprecedented with an in- or on-ground speaker. The unique radial enclosure disperses clean, full-range sound 360º evenly over a large area, with the depth and richness of music’s lower tones that is uncommon outdoors. Mount or simply place Free Space® 51 speakers on your deck or patio, or set them directly into the ground to blend in with your landscaping. Hide or highlight them – you’ll get the same superb performance either way. Rugged, weather-resistant casing and driver withstand extreme heat and cold, ice, snow, wind, rain and salt fog all year round – with consistent sound performance. And you can use Free Space 51 speakers as your main outdoor speakers or as a complement to an existing system. Enhance your outdoor environment with the new Bose speakers that love to play outside.

What It Is & Why You Need It

  • Superb, full-range sound quality with extensive 360º coverage.
  • Flexible placement options – can be mounted, freestanding or set into the ground.
  • Natural green color blends in with foliage in most outdoor environments.
  • Exceptionally rugged, durable construction for year-round dependability.

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A Closer Look

Additional Specifications

  • Color: Green
  • Driver complement: downward-firing Bose environmental 4.25" full-range driver.
  • Dimensions: 14.2" Height x 12.6" Diameter (360 x 320 mm)


  • Engineered and tested to withstand snow, rain, salt and temperature extremes of 158ºF (70ºC) to -40ºF (-40ºC).
  • Survived the Salt Fog test 66% longer than the demanding Marine Industry Standard.
  • Sturdy, weather-resistant construction withstands the rigors of year-round outdoor placement and loads of up to 350 lbs.
  • Radial design disperses sound 360º for broad, even coverage.
  • Enclosure uses its total capacity for optimal acoustic performance, delivering full-range sound over a large listening area.
  • Polymer fiber composite driver cone combines high-quality sound reproduction with resistance to deterioration from extreme weather conditions.
  • Centrally located port enhances low-frequency reproduction to help preserve music’s depth and richness outdoors.
  • Domed port grille reflects high frequencies into the listening area to enable clear, natural-sounding consistent performance.
  • Base flange with mounting holes provides easy installation on deck and other hard surfaces, or added stability in the ground.
  • Three wire grooves on bottom allow for stable footing and a neat appearance when placed on hard surfaces.
  • Rated at 50 watts IEC continuous power handling. Compatible with amplifiers or receivers rated from 10 to 100 watts per channel RMS and 4 to 8 ohms.

What's Included

Additional Resources: Product Manuals

  • Manufactured by: Bose
    Warranty provided by: Bose
    Limited Warranty: 60 months parts; 60 months labor
    Mfg Part No: 31763
    UPC No: 017817325455
    Box Size: ( Length:29, Width:16, Depth:15)
    Shipping Weight: 21.9000 pound(s)
    Dimensional Weight: 31pounds

    What is Dimensional weight?

    Click here for full warranty and support information
  • Limited Warranty: A full text version of the limited warranty may be obtained by mailing a self addressed, stamped envelope to the address below and requesting the warranty for item number: B55-1056

    Warranty Information
    11 Harbor Park Drive,
    Port Washington, NY 11050.

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