Bose Free Space 51 Outdoor Speaker - Pair (Green)

Model: 31763 UPC: 017817325455 Item: 161754


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754 Route 309 (Bethlehem Pike) Montgomeryville, PA 18936
  • Mon: 9:30am - 8pm
  • Tues - Fri: 9:30am - 6pm
  • Sat: 9:30am - 5pm
  • Sun: 12pm - 5pm
(215) 368-8343
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38 Greenfield Avenue, Ardmore, PA 19003
  • Mon - Fri: 10am - 6pm
  • Sat: 10am - 5pm
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(610) 649-7002
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Free Space 51 Outdoor Speaker - Pair (Green)
$628.00 for two items
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Product Information

Now from Bose – a freestanding speaker that conquers conventional limitations of performance and placement outdoors. The Free Space® 51 speaker brings you the pleasures of your favorite music by the pool . . . on your deck or patio. . . or in the garden. Its radial design delivers broad 360º sound coverage, while a specially engineered enclosure helps preserve music’s depth and richness in the open air. Can be mounted or placed on hard surfaces, or set directly into the ground. Withstands extreme weather conditions for year-round dependability. Finally – a speaker that combines your love of music with your love of the great outdoors.

  • 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.
  • Driver complement: downward-firing Bose environmental 41⁄4" full-range driver.
  • 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.
  • Dimensions: 14.2" Height x 12.6" Diameter (36 x 32 cm).
  • Weight in carton: 25 lbs. (11.3 kg).
  • Available in textured Green.




  • Dimensions (H x W x D): 15" x 14.5" x 14.5"
  • Weight: 12 lbs.

What's in the Box

What's in the Box:

  • Free Space 51 Outdoor Speaker - Pair
  • Wire nuts


Customer Reviews for Bose Free Space 51 Outdoor Speaker - Pair (Green)

4.4 / 5.0
14 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
I figured after owning these speakers for over fives years it was time to write a review. I live just outside Chicago where we get really cold winters. These speakers have not shown any signs of cold or heat damage. And yes they have been outdoors since I bought them. And their sound is truly unbelievable. I have then hooked up to my 21 year old Yamaha receiver. Friends that come over cannot believe the deep bass sounds coming from these speakers. They always ask if I have a sub woofer hooked up. I cannot be any happier with the build and sound quality. I would highly recommend to anyone to purchase.
November 9, 2015
Originally posted at
Exactly what I expected
I have a a fairly large outdoor area, and I instead a pair of these along with two pair of Bose 251's, and my jubilation can't be contained. These speakers sound great as they cover such a broad area and the sound reflects off the ground and makes you feel surrounded by the sound instead of it being directed at you. I will add a second pair to complete my all ready amazing out door space as if you are trying to provide sound to two patios, a pool, a pergola, and fire pit space you need the quality and power of Bose to do so.
August 15, 2016
Originally posted at
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
August 7, 2015
Originally posted at
These speakers are the best , had my for 11 years now , but this winter put one of them to rest . I'll be out to replace the both real soon. They own me nothing . Sound means a lot to me and Bose speakers do the job, thank you Bose. Paul F.
March 8, 2017
Originally posted at
Fabulous sound quality
After a month of use, couldn't be happier. Sound quality is excellent. They are never going to win awards for looks but are suitably camouflaged and unobtrusive amongst the garden plants. I am using them with the SoundTouch SA-4 amplifier system, giving a rich background at lower volumes and a punchy vibrant sound with plenty in hand as the power is increased.
June 25, 2015
Originally posted at
Great quality sounding speaker in most settings!
5* outdoor speaker.

The speaker is really well camouflaged in most outdoor settings. I was recently in Abu Dhabi and they had hundreds of these speakers playing out in the city all playing the same music. After returning home from my travels I purchased the FreeSpace speaker and am hugely happy with the item.

Glad I purchased this over the other options out there. Bose really live up to brand expectations. If your are after a weather resistant outdoor speaker, you really can't go wrong with this item or any Bose products for that matter.

Great speaker, wish I could afford a stereo pair!
December 21, 2015
Originally posted at
One of our best purchases ever!
Have had ours right next to the pool, in planters for 6 years, still look and sound like brand new.
July 13, 2018
Originally posted at
Great outdoor speakers
I have owned a pair for nearly 15 years. They still sound as good as the day I installed them.
May 19, 2018
Originally posted at
Great autdoor speakers !
I bought this speakers ten years ago. It works as well as on the first day.
I am happy with them.
October 24, 2017
Originally posted at
Well Known
i have seen these speakers all around theme parks in the UK such as The Smiler and Icon and i can say they are great quality, and long lasting since the Smiler has been operating for 5 years and the speakers ares till going
August 6, 2018
Originally posted at


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