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Home / Product Category / SPEAKERS / Ceiling Speakers / 8" In-Ceiling Speakers / ACE850 8" Kevlar® Trimless Thin Bezel Ceiling Speaker Pair

ACE850 8" Kevlar® Trimless Thin Bezel Ceiling Speaker Pair

Product code: OSD-ACE850

In Stock
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OSD Price: $99.95
Compare at: $299.95 You Save: $200.00 (67%)
Sold in pairs 1 = 1 pair
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Features & Specifications

ACE (Architectural Ceiling Element) series ceiling speakers combine elegant, modern style with outstanding audio performance. Features include an 8” Kevlar® woofer with rubber butyl surround for long life, 1" pivoting aluminum dome tweeter and up to 200W power handling. The micro flange grilles have a thin (0.15") trim, giving the ACE speakers a clean and sleek appearance that seamlessly integrates into any design space.You can even paint the grilles for a truly custom touch! Our learning center has some great tips on how to install your speakers and how to paint the grilles as well.

What Is Kevlar® ?
Kevlar® is a super strong material known for its ability to produce powerful but very smooth bass tones. Kevlar® woofer cones retain their shape even at very high energy levels, which means you can crank up the volume and experience spine-tingling sound without distortion or coloration.

For a retrofit installation, no construction bracket is needed.

Please note: Use cut-out diameter according to the bullet point on the website.


Other Product Info

With a look deriving from famous World War II British Spitfire Jets, a new sophisticated crossover and the best component materials available, the MK650 Spitfire Ultra Reference Series are the best ceiling speakers on the market. Premium technologies such as Kevlar® woofers, pivoting aluminum dome tweeters and sophisticated crossovers provide deep bass and exceptional top-end frequency response. Kevlar® is the best component for woofers. It responds note for note without coloration and has big cranking power so you can dial up your system for higher listening levels. The contour switches will let you tailor frequency responses to your room arrangement. You won't find yourself wishing for more or less treble, mid-range or bass output from one speaker just because you don't happen to sit right between them.


  View Owner's Manual          


By Corey from Michigan on March 13, 2012
Any idea when the preconstruction mounting brackets will be back in stock?
By Customer Service - Q&A on March 14, 2012

Hi Corey,
You would use the bracket NCBC8-K for this speaker. For installation, snap the perforated tab on the inner ring and place the bracket with the lip facing down.


By KB Jake from Toronto,On on January 24, 2013
How would these speakers perform for audio only installations connected to a Sonos music system.
Concerned tham home theatre and audio drive different results.
By Customer Service - Q&A on January 26, 2013

Hi KB,

These speakers were focused on audio long before we added them to our home theater mix. You will notice they have an excellent Frequency Response and the Sensitivity is 92 dB which means they are very efficient and will work very well with either the SONOS connect amplifier or SONOS Connect and our OSD High Current Amplifiers.

TL/MA - 1578

By Corey from Michigan on May 16, 2012
We are installing these speakers in new construction. Our builder wants to enclose the back with a enclosure (wood / foam). What depth of box should we have him build?

If you do not recommend back enclosure, how do you recommend to handle insulation?

By Customer Service - Q&A on May 17, 2012

Hi Corey,

The box needs to be at least 5 to 6 inches to accommodate the depth of the speaker. These speakers work in an infinite baffle so they adapt to a broad range of enclosure sizes. You could have him build an enclosure featuring a top and two sides using the ceiling joists or studs as the other two sides. It's a good idea to isolate the speaker from the insulation. You can also load the enclosure with fiber fill (Dacron-Polyester fiberfill) that allows you to build a smaller enclosure. You can buy this at any fabric store or in a bedding section of a K-Mart or Home Depot. There are some simple solutions to covering the speaker with a wire mesh but if you have the ability to build enclosures, this is the optimum solution.


By Randy Wiebe from Winnipeg Manitoba Canada on December 2, 2011
Can these speakers be used outside
By Customer Service - Q&A on December 2, 2011

Dear Customer,
These are strictly indoor speakers, but check out the ice600wrs, those are for bathrooms and outdoors.
By Customer Service - Q&A on December 2, 2011

Dear Customer,
These are strictly indoor speakers, but check out the ice600wrs, those are for bathrooms and outdoors.

By Rocco Leach from Atlanta, GA on December 28, 2012
Are the grills paintable?
By Customer Service - Q&A on December 31, 2012

Hi Rocco,

Yes, you can paint the grills on these ceiling speakers as well as the frame. The kit also includes a paint shield. Be sure to use a fine spray paint, not a brush, or you could clog the holes, and when you paint the grill, be sure to remove the inner cloth ,typically found on the inside of the grill.


By Anders from Sweden on January 6, 2013
Can this speaker be used with the back box BB8 and would it be a good idea to combine the use of BB8 (if possible) with the mounting bracket (NCBC8-K)?
By Customer Service - Q&A on January 8, 2013

Hi Anders,

The ACE850 ceiling speaker should work with the BB8. The BB8 will provide both a sealed enclosure and the support needed so you do not need the NCBC8-K new construction bracket.

TL/MA - 1517

Product Reviews

ACE850 8" Kevlar® Trimless Thin Bezel Ceiling Speaker Pair
4.5 Stars based on 11 Review(s)
Poughkeepsie, NY
4 Stars

The grills are a nightmare.
July 1, 2016
The thumbnail of the speakers make it look like the grills would attach via magnet (like most premium bezel-less speakers have), but instead they have these little clips that need to be bent with a flathead screwdriver in order to remove the grill. This was frustrating to no end on the first installation, slightly less annoying on the second, and pretty easy on the second and third pairs. However, once the speaker is in the ceiling, and the grill has been placed back on, it kind just sits there loose - making we worried it will fall off some day. Other than that, they sounded as good as I'd expect a non-baffled in-ceiling speaker to sound in this price range.

Valparaiso, Indiana
5 Stars
I would recommend this item to a friend.

Best ceiling speakers I have ever had.
December 22, 2013
I bought these speakers having previous experience with OSD through a pair of outdoor rock speakers I purchased from them. OSD has been great with fixing any problems I have had and are by far one of the best companies I have dealt with. I bought these speakers as I am slowly putting in a whole house audio system (room by room). I put these speakers in knowing how great the rock speakers sound but I was absolutely blown away at how great the ACE850MK speakers sound. The base, the clarity, the sound in general is unbelievable. You will not go wrong dealing with OSD and these speakers. OSD also has an enclosure for these speakers which I recently purchased and hope to have installed by Christmas. Based on what I have read these enclosures for the 8" speakers will protect the back side of the ceiling speakers and improve the sound quality even more.
Sound absolutely great with a rich base and great tone quality, easy to install. Blend great with the ceiling.
None that I can find.

Sebring, FL
4 Stars
I would recommend this item to a friend.

Major Sound
December 5, 2013
Installed 8 in a very large retirement village club house. They play as loud as they can stand it and are very clean and clear. Never expected thundering lows but music to dance to sounds great!! (Uses 2 3/4" strips between the drop ceiling grids to support the weight....they have large heavy magnets.) Wired them up in pairs for 4 ohm load to 2 QSC GX3 pro stereo amps which permits using either zone separately or together. Trimless design seems to work fine and they almost disappear from view... Looks very modern and clean!
Good speaker specs and sound great.
The mounting tabs are easy to use but they are made from a plastic. Hope they last.?>
Best Uses:
Home multimedia or large venue.

Phoenix, AZ
4 Stars
I would recommend this item to a friend.

Excellent quality, excellent price
September 4, 2013
Very pleased with the quality and performance of these speakers. The only thing that would make them better is if they were enclosed.
Quality, performance, price.
Not enclosed. You will need to supply your own enclosure solution to prevent bleeding.

High Point NC
5 Stars
I would recommend this item to a friend.

Clean look and crisp sound
July 20, 2012
The quality of the product and the sound it produces is right up there with the name brand speakers that one would pay much more for. I am using them in a 7.2 theater system and they are awesome!
Easy to Mount, Attractive Design, Easy To Set Up, Great Sound Quality
Best Uses:
Multiple Rooms / Whole House, Home Theater

Kevin LV
5 Stars
I would recommend this item to a friend.

Great Speakers
June 16, 2012
Bought six of these speakers for my home theater system (6.1) and they are awesome. Powered by a yamaha RX-710, with an OSD S-10 sub-woofer. The sound produced by this system is fantastic and truly is a "home theater." You can't beat the value of these speakers and the Yamaha receiver is great.
Good Power Output, Easy to Mount, Great Sound Quality

Randall live
Roswell, GA
4 Stars
I would recommend this item to a friend.

ace850mk rock
November 18, 2011
My wife and danced for 2 hours. Love the sound..
Great Sound Quality, Easy To Setup, Easy to Mount, Attractive Design, Good Power Output
Best Uses:
Larger Rooms, We used in a 20 x20 51, Basic Systems, Home Theater

San Francisco, CA
5 Stars

I was a little skeptical ...
April 16, 2010
I was a little skeptical buying these speakers before listening to them. They do look good online, after I install them for my 7.1 home theatre system, I donäó»t know how OSD did such a wonderful job by creating these beautiful sound speakers at a stealing price. I check Polk and Boston Acoustics at local dealers but these ACE850MK produce solid strong bass, very noticeable clean vocals and my home movie theatre experience just step into another level. Thank you Outdoor Speaker Depot for great technical support and fast shipping.

Walkerton, ON Canada
5 Stars

I installed these ...
February 16, 2010
I installed these speakers for my down stairs bar. This price and sound are spectacular. I mounted theme in back boxes and insulated behind them, you will not be disappointed. Ship is just as easy as picking it up from the store, with no need to drive!!!

Columbia, SC
5 Stars

Google in ceiling ...
February 8, 2010
Google in ceiling speakers and to make a long story short, this company by far provides high quality products at a considerable discount price. I almost went to home depot to buy the products i needed to finish my man room ie...HDMI in wall cables, gang plates for home theater system and etc. It would of cost me a lot of money. I love this company and would be recommending them to all my friends and family members. Great Company

5 Stars

The complete shopping ...
July 28, 2009
The complete shopping experience was better than I expected. >From customer service to pricing & product quality exceeded my expectations. I would not hesitate to recomend this product.