Bose® Free Space® 51 environmental speakers


In-Store Pickup available




  • Indoor/Outdoor
  • 2-Way/6" Woofer
  • 100 Watts per Channel
  • Priced and Sold in quantities of 2
  • 1 Low Frequency Driver


  • Bring the subtle nuances of your favorite music to life in outdoor environments where wall mounting is not an option. Bose® Free Space 51 landscape speakers can be placed in the garden, on the deck or on the patio. Connect these outside speakers to your existing audio equipment and enjoy natural sound throughout a broad listening area.

    Free Space 51 outdoor stereo speakers offer broad, even coverage due to a design that enables 360-degree sound dispersion. A centrally located port enhances 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 across the listening area.

    These landscape and patio speakers can be installed in the ground or on hard surfaces. Designed to blend in with backyard greenery, you may hardly notice them when placed within your landscaping. And for use on a patio or deck, the grooves on the underside of the base allow you to neatly tuck in wires for a simple and professional-looking installation.

    With all of their features, including their rugged casing and downward-firing, 4½", full-range driver, these weather resistant speakers offer the durability you need outdoors with sound you'd expect indoors. And they are guaranteed and tested to withstand even extreme conditions, so you can leave them outside all year long.

    Bring the outdoors alive with sound from your Lifestyle® system, if you own one, with Free Space 51 outdoor speakers and an SA-3 amplifier. You can even listen to music outdoors while different music or movies play indoors, at the same time, from the same Lifestyle® system.

  • 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.
  • Radial design of these unique outdoor speakers enables 360-degree sound dispersion for exceptionally broad outdoor coverage.
  • Downward-firing, full-range driver (4.5") and centrally located port deliver the depth and richness of your favorite music. The weather-resistant driver makes it possible to enjoy year-round sound from a rugged landscape speaker specially designed for outdoors.
  • Domed port grille works in concert with the centered port to reflect high-frequency tones into the listening area. Enjoy clear, consistent performance for your favorite music outdoors.
  • Specially designed enclosure optimizes the speakers' overall acoustic performance for even, full-range coverage over a large listening area.
  • Polymer fiber composite driver cone ensures 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 deliver the depth and richness of music outdoors.
  • Sturdy weather-resistant construction allows the speakers to deliver consistent, reliable performance that withstands the rigors of year-round outdoor placement and up to 350 pounds of pressure. Five-year guarantee.
  • Green speaker cabinet designed to blend 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 prevent the speaker from rocking on the speaker wire, allowing a professional-looking installation on decks, patios and other flat surfaces.


Product Details

What's in the Box
2 speakers
4 wire nuts
Each speaker: • 14 1/5"H x 12. 3/5"D, 24 lbs • (36 x 32 cm, 10.8 kg)
Pair in carton: • 15"H x 29"W x 16"D, 25 lbs • (38.1 x 73.6 x 40.6 cm, 11.3 kg)

Compare Outdoor Speakers

Comparison features
2.5" full-range drivers Two per speaker Three per speaker
5.25" woofer
Downward-firing 4.5" full-range driver
Radial design for widest outdoor coverage
Articulated Array® speaker design
Brackets for wall mounting
with ability to mount horizontally or vertically
In or on-ground placement
Sturdy weather-resistant construction Yes
with five-year limited warranty
with five-year limited warranty
with five-year limited warranty
The information above is powered by Answers™
Speaker Type
Speaker Configuration
2-Way/6" Woofer
Power Handling
100 Watts per Channel
Priced as
Priced and Sold in quantities of 2
Low Frequency Driver
1 Low Frequency Driver
High Frequency Driver
1 High Frequency Driver
Frequency Response
50Hz - 20KHz
8 Ohms
Speaker Wire Connectors
Push Terminals
Shipping Weight
23 lbs
Warranty Terms - Parts
60 Months
Warranty Terms - Labor
60 Months


by PowerReviews
Bose® Free Space® 51 environmental speakers

(based on 1 review)

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Reviewed by 1 customer

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(7 of 7 customers found this review helpful)



By Juice

from Undisclosed

Comments about Bose® Free Space® 51 environmental speakers:

What a great sounding speaker! I have a fairly decent size yard and these fill it with high quality sound. Replaced a set of old in ground speakers that sounded good and with the 51's I just realized what i was missing

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