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Bose Free Space 51 Environmental Speakers - 31763

Abt Model: FS51GR | UPC Code: 017817325455
Bose - 31763 - Outdoor Speakers
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Radial Design/ Specially Designed Enclosure/ Downward-Firing 4.25" Full-Range Driver/ Sturdy Weather-Resistant Construction/ Priced Per Pair/ Green Outdoor Speaker Cabinet
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Your Shipping Zipcode: 07095 (change)

Estimated Delivery Date: 
Jan 29th - Jan 30th *

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Average Customer Reviews

5.0 (2 reviews) 5

Product Details

Bose Free Space 51 Environmental Speakers - FS51GR

Experience the full pleasures of your favorite music practically anywhere in your yard with our most versatile outdoor speakers. On your deck or patio, by your pool or in your garden, Bose® Free Space® 51 speakers deliver a level of sound quality remarkable for an in- or on-ground speaker…another breakthrough from the most respected name in sound. Hide or highlight them – you’ll get 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 – and still deliver quality sound. Enhance your outdoor environment with the new Bose speakers that love to play outside.

Product highlights:

  • Deliver better coverage around the yard by dispersing sound in a wide, 360-degree pattern.
  • Freestanding design blends with most any outdoor décor and enables on-ground or in-ground installation.
  • Ideal as main outdoor speakers and can also serve to extend coverage of an existing pair of speakers.
  • Exceptionally rugged, durable construction for year-round dependability.
Bose® quality sound. From the ground up.

Free Space® 51 speakers

You love the thought of relaxing to your favorite music outdoors. But you want speakers that offer you both quality sound and the flexibility to put them where you'd like.

We hear you.

Bose Free Space® 51 speakers are our best performing and most versatile outdoor speakers. Place them by the pool, on the deck or in the garden. The options are many - and they're a great choice if you cannot or prefer not to mount speakers to your home.

Free Space 51 speakers blend in with backyard greenery, so they're hardly noticeable. But the full-range sound will certainly get your attention.

The benefits are in the design.

The benefits are in the design.You might wonder how a speaker placed near your feet delivers such clear, natural sound to your ears. Free Space 51 speakers offer exceptionally broad, even coverage thanks to a radial design that enables 360-degree sound dispersion. A rugged, weather-resistant casing and downward-firing
4 1/2" full-range driver withstand extreme conditions to produce year-round sound. Choose your favorite music, and notice how even its subtle nuances come to life in an outdoor environment.

The beauty is in the details.A centrally located port enhances the low-frequency performance to help preserve the depth and richness of music outdoors. And a domed grille resting over that port reflects high-frequency tones into the listening area. All of these features combine to offer the durability you need outdoors with sound you'd expect indoors.

The beauty is in the details.

The flexibility of Free Space 51 speakers allows you to partially bury them in the ground or easily install them on hard surfaces. The speaker base has three mounting holes for solid and secure placement. Grooves on the underside of the base allow you to neatly tuck in wires. This ensures that the wire doesn't cause rocking and provides a simple and professional-looking installation on a deck or patio. With meticulous design and rewarding performance, Free Space 51 speakers are an ideal choice for outdoor listening pleasure.

Features Benefits
Radial design Delivers better coverage around the yard by dispersing sound in a wide, 360-degree pattern.
Specially designed enclosure Optimizes the speakers' overall acoustic performance for even, full-range coverage over a large listening area with exceptional low-frequency performance.
Downward-firing 4.25" full-range driver Delivers long-lasting sound backed by a legendary 5-year transferable warranty. This weather-resistant driver is further protected from the elements.
Polymer fiber composite driver cone Combines a pulp and plastic mixture with waterproofing agents for high-quality sound reproduction that is resistant to the type of deterioration often caused by extreme conditions.
Centrally located port Enhances low-frequency performance to preserve the depth and richness of music outdoors.
Domed port grille Reflects high-frequency tones into the listening area for a clear, consistent and natural-sounding acoustic performance.
Sturdy weather-resistant construction Allows the speakers to deliver a consistent and reliable performance that survives the rigors of year-round outdoor placement. Built to withstand 350 pounds and extreme weather conditions.
Green speaker cabinet Blends in with backyard greenery.
Base flange with mounting holes Provides easy, solid and secure installation on hard surfaces or in the ground.
Three wire grooves on speaker bottom Prevents the speaker from rocking on the speaker wire and enables a professional-looking installation on decks, patios and other flat surfaces.
Approximate Dimensions

Each speaker: 14.2"H x 12.6"D (36 x 32 cm)
Pair in carton: 22"H x 31"W x 21"D (38.1 x 73.6 x 40.6 cm)

Approximate Weight
Unit (each)24 lbs. (10.8 kg)
Shipping (pair) 48lbs. (11.3 kg)

Features and specifications are subject to change without notice.

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Need Accessories?
Speaker Wire Speaker Wire
Dramatically increase sound quality or add distance from your receiver with our speaker wire.
More reasons to buy the Bose 31763 from Abt Electronics
  • is an authorized dealer (Learn More).
  • The Bose 31763 is Brand New.
  • The Bose 31763 Ships in a Factory Sealed Box.
CategoryWireless Sound
ConnectivityBare Wire
Enclosure TypeBass Reflex (Ported)
Magnetic shieldingNo
Power10W - 100W
Speaker DesignAll Weather
Speaker TypeOutdoor
Woofer Size (inches)4.25
Height (inches)14.2
Width (inches)12.6
Depth (inches)12.6


Speaker Wire
Speaker Wire
Dramatically increase sound quality or add distance from your receiver with our speaker wire.
AudioQuest Flat Series 30 Feet Speaker Cable
Special Order: 7 To 14 Day Delivery Time
$ 58.75
AudioQuest Flat Series 50 Feet Speaker Cable
In Stock
$ 94.75
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by PowerReviews
Bose Free Space 51 Environmental Speakers

(based on 2 reviews)

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Reviewed by 2 customers

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(2 of 2 customers found this review helpful)


Great sound, great speakers!

By dave

from Chicago

About Me Audiophile, Practical, Tech Savvy

Verified Reviewer


  • Easy Setup
  • Easy to Mount
  • Good Power Output
  • Great Sound Quality


    Best Uses

    • Outdoors

    Comments about Bose Free Space 51 Environmental Speakers:

    Great sounding speakers! I was looking for new outdoor speakers....deck approximately 16' x 24', and decided not to hang speakers on the wall. These blend in with plants extremely well and have great sound....good bass and great imaging...most people can't tell where the sound is coming from.

    Comment on this review

    (1 of 1 customers found this review helpful)


    Great speakers

    By Steve & Heidi

    from Alpharetta, GA

    About Me Practical

    Verified Buyer


    • Attractive Design
    • Easy Setup
    • Great Sound Quality


      Best Uses

      • Outdoors

      Comments about Bose Free Space 51 Environmental Speakers:

      We replaced some "rock" speakers that were failing with these high quality outdoor speakers. We have seen them in commercial outdoor settings and checked them out. Immediately we noticed the difference of the Bose quality. While not the most attractive, they do blend nicely with the landscape around our pool and we are very satisfied with our purchase.
      I would love for Bose to come out with "rock" style speakers that have the great quality that we love.

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      Bose Free Space 51 Environmental Speakers

      Bose Free Space 51 Environmental Speakers

      In Stock

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