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  • Bose Free Space 51 Outdoor In-Ground Speakers (Green)
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Bose Free Space 51 Outdoor In-Ground Speakers (Green)

by Bose
| 23 answered questions

Price: $449.00 & FREE Shipping. Details
In Stock.
Ships from and sold by Amazon.com.
  • Downward firing 4-1/4 full range driver
  • Innovative radial design disperse sound in a 360 degree pattern
  • Rugged, flexible design withstands temperatures from -40 to +150 degrees Fahrenheit, and passed the rigorous salt fog test 66% longer than required by the Marine Industry Standard
  • Recommended power - 10 - 100 watts
  • Base flange with mounting holes for easy installation
11 new from $449.00 1 used from $370.00
Is this a gift? Please note that this item ships in its own packaging and cannot be gift-wrapped or concealed.
Special Shipping Information: This product may not be available for 1 or 2 day shipping due to federal regulations that require it to ship via ground ship methods only. This product can only be shipped within the 48 contiguous states.


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$449.00 & FREE Shipping. Details In Stock. Ships from and sold by Amazon.com.

Frequently Bought Together

Bose Free Space 51 Outdoor In-Ground Speakers (Green) + SONOS - CONNECT:AMP Wireless Streaming Music Amplifier
Price for both: $948.00

Buy the selected items together


Special Offers and Product Promotions

  • Amazon Free 30-Day Tech Support: This item is eligible for free tech support for 30 days from the date of delivery. Over the phone, our trained technicians can help you set up, configure, connect, and troubleshoot so you can start enjoying your new purchase. Owners of qualifying products can reach Tech Support by calling 1-800-362-5703. Learn more

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Product Specifications

Brand NameBose
Speaker TypeOutdoor
Color NameGreen
Item Display Height14.2 inches
Peak Power Handling - Speakers50 watts
RMS Power Range - Amplifiers50 watts

Technical Details

  • Brand Name: Bose
  • Model: 31763
  • Color Name: Green
  • Speaker Type: Outdoor
  • Speaker Amplification Type: Passive
  See more technical details

Product Details

Product Manual [169kb PDF]
  • Product Dimensions: 29.1 x 15.9 x 16 inches ; 22 pounds
  • Shipping Weight: 25 pounds (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
  • ASIN: B00009B8H6
  • Item model number: 31763
  • Average Customer Review: 4.7 out of 5 stars  See all reviews (38 customer reviews)
  • Date first available at Amazon.com: November 22, 2004

Product Description

Enjoy outstanding audio inside or outside with these Bose® Free Space® 51 environmental speakers. The rugged speakers feature an innovative circular design that radiates sound out in a 360° pattern. Features: durable, flexible design that withstands temperatures from -40° to 150°F and passed a rigorous salt fog test 66% longer than required by the Marine Industry Standard; mounts to your deck or can be put in ground; reproduces low frequency notes for an impactful experience; recommended power of 10-100 watts; base flange with mounting holes for easy installation and a textured green enclosure.

Customer Questions & Answers

Customer Reviews

Great quality and amazing sound from these speakers.
Craig Boyle
We have a pool and placed these on the patio and can hear all over the yard/pool without distortion.
Thomas Wayne Daniel
The Bose speakers are worth every penny and provide a beautiful sound for your outdoor space.
Karen Knox

Most Helpful Customer Reviews

32 of 35 people found the following review helpful By Michael Krieger on March 26, 2011
I have had a set of these Bose speakers in my patio for 7 years now, and they are still as awesome as they were when I installed them. They provide excellent sound quality, even when playing compressed audio formats. They also provide stereo imaging that rivals that of premium indoor speakers (I have considered getting some sets of these to use with the surround sound in my living room).
The weather has had very little effect on these speakers over the years, they are slightly faded, and that's about the only sign of age that they show.
Another wonderful quality of these speakers; is that they are non-directional. Which means that unlike most speakers, you DO NOT have to be in a specific location to hear good quality sound.
So if you are looking for great sounding outdoor speakers, these are simply the best one's available.
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26 of 29 people found the following review helpful By Mr. Murillo on August 1, 2010
Verified Purchase
I made the mistake of buying a " knock off" to save a few bucks....they sounded decent but only lasted about a year...

If you are considering anything less than these BOSE ......Learn from my mistake....spend the money....they are far superior to any other speaker of this type.
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23 of 27 people found the following review helpful By Joe on July 20, 2010
Verified Purchase
I have 2 sets of Bose outdoor speakers - One set under a veranda roof and these out by my pool. These are the best you can get if you need something that will be integrated in landscaping, etc. If you can place the speakers under cover or attach them to your house I would recommend the other Bose outdoor speakers.
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12 of 14 people found the following review helpful By Happy one on August 24, 2011
Verified Purchase
I installed these five years ago and they still look and sound great. I placed mine in my flower gardens so they would be covered during the summer, and they still sound great. With the 360 degree sound my neighbors and friends are amazed when they find out where sound is coming from. I could have paid less for other speakers, but I am very happy with these and expect years of satisfaction.

Update June 3, 2014.. Even after our record cold and snow this winter (Chicago area), the speakers were buried under snow from mid December to early March, the speakers still sound great. 8 years and counting.
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6 of 7 people found the following review helpful By singapore on December 14, 2011
Verified Purchase
Sturdy, crystal clear sound, easy to install, nice looking- thats how i describe these speakers. we used them for our recent party and it really enhanced our audio for the evening
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3 of 3 people found the following review helpful By Arnold E. Benjamin on April 9, 2013
Verified Purchase
I have been looking at Bose Free Space 51 Outdoor In -Ground Speakers for about three or four years. I thought they were a little pricey, but I have never questioned the quality of the product.
I received speakers about two weeks ago, I have not regret one dollar yet!
"Outstanding"
Thank you!!
A E Benjamin
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2 of 2 people found the following review helpful By Wayne Grabski on August 11, 2012
Verified Purchase
I have these speakers hooked up with 5 other various pairs of outdoor speakers. the Bose sure help to fill in the bottom end all around you
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1 of 1 people found the following review helpful By T. Bogan on February 22, 2014
Verified Purchase
We recently bought two sets of outdoor speakers (Bose Fee Space 51 and Definitive AW 6500) and connected them to a Sonos wireless system (using the Connect: AMP). We like both sets of speakers but the sound is crisper from the Definitives.

Bose as always does a good job delivering bass and the in ground form factor fits that space very well - but several people who have listened to both speakers prefer the sound from the Definitives.

The Bose may be a little underpowered using the Sonos amp (it only delivers 55 w/ channel) but overall we are very happy with our choice and setup. In another system, we are using Bose connected to a Bose Amp and the results are better.
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Most Recent Customer Reviews