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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 Titanium Dome Tweeter and up to 175W 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. These flush mounted speakers are hardly noticeable; that is until they're playing. The micro flange grilles are attached by extremely powerful magnets that stay put for quick and easy installation. Adds less visual impact on your architectural audio installation. 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 ACE850 Spitfire Ultra Reference Series are the best ceiling speakers on the market. Premium technologies such as Kevlar® woofers, pivoting Titanium 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. 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          


13 Questions & 14 Answers
Juan camilo Alvarez
from FL asked:
June 29, 2018
Hi. Is this the price for each speaker or for the pair? It comes 1 or 2 speakers?
1 Answer
HI Juan: Sold in pairs 1 = 1 pair Sold in Pairs one for right and the other for left. TL/5083
Tim Leahy
on June 30, 2018

from Michigan asked:
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? Thanks
1 Answer
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. TL/MA
Customer Service - Q&A
on May 17, 2012

from Broadlands, VA asked:
February 20, 2018
I am trying to finish out my 7.2 home theater for my new basement. So far I have 3 OSD-MK-IW550LCR for front, R and L and have the Onkyo TX-NR656 ready to power them. I am looking for the rear and side speakers to put in the ceiling and am wondering if these would do well. I also plan on two OSD sub-woofers to round it all out (one in front left, one in back right). The space is about 16 ft x 17 ft but is also open to adjoining spaces (no doors).
1 Answer
Hi Anthony: The best speakers for In-Ceiling Speakers for Custom Home Theater for Front Stage LCR (which you have covered) and also Surround and Effects speakers are our Angled In-ceiling speakers the ACE870 (best for front stage) and the ACE670 for the surround/effects speakers. The angled speakers give you more mounting/placement options. With the ONKYO you will look for a pair of surrounds to be on either side of the optimum listening area or even slightly behind. That would be labeled as channel 4 and 5 for the Surround. Then they have channel 6 for sub and 7 and 8 for Surround Back or Height (effects speakers). These would be for your Dolby Atmos speakers located between the front stage and seating area. You can place the height speakers 3 to 5 feet in front of your optimum viewing/listening seating area. You can go with the 8" if you want but the 6.5 are typically enough. Right now we are out of stock on both the ACE670 and ACE870 but if you contact our sales department they can provide you with a couple of direct replacements from our Black Series. We should have the two ACE speakers in the second quarter 2018. TL/4810
Customer Service - Q&A
on February 22, 2018

from marshall, nc asked:
June 22, 2017
Do the ACE850's come with the New Construction Bracket PCB-C800?
1 Answer
Hi Marshall: These do not come with a New Construction Bracket. It is optional and I believe the ,model number is wrong. It should be a NCBC8-K New Construction Bracket Pair For 8" In Ceiling Speaker. TL/4436
Customer Service - Q&A
on June 25, 2017

from GA asked:
July 9, 2016
This is probably a more general question, but I am going to mount these in wood, stained dark brown. Are their replacement grills or is there a suggested way to get a grill in a darker color - black, etc? Thanks
1 Answer
HI RHB: The Grills are paint able, You can use a spray paint. After you paint it remove the cloth cloth attached on the inside of the Grill. TL/3976
Customer Service - Q&A
on July 9, 2016

from Bay Area, California asked:
January 27, 2016
The manual and one of the comments lists this speaker as having 92db sensitivity, but the specs section lists 88db.Which is right?
1 Answer
Hi Guy: Go with the Manual, our site is currently being updated a category at a time. And we will be changing the on-line listing to match the Manual. Sorry for the confusion, ironically I am the one doing the updates so I better step it up TL/3678
Customer Service - Q&A
on January 28, 2016

from Caldwell Idaho asked:
January 13, 2016
is there any difference between the ACE850 and the ICE850 besides the thin bezel on the ACE
1 Answer
Hi Sonya, The only other difference between the ICE850 and ACE850 is the sensitivity rating. The ICE850 is at 89db when the ACE850 is at 88db, so not a big difference. CS 3660
Customer Service - Q&A
on January 13, 2016

from Boston, MA asked:
May 19, 2015
What is the minimum amount of power that I should supply to these speakers?
1 Answer
Hi Chuck, Absolute minimum would be 20 watts per speaker, but you want to give them around 80 to 100 watts usually.
Customer Service - Q&A
on May 19, 2015

KB Jake
from Toronto,On asked:
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.
1 Answer
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
Customer Service - Q&A
on January 26, 2013

from Sweden asked:
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)?
1 Answer
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
Customer Service - Q&A
on January 8, 2013

Rocco Leach
from Atlanta, GA asked:
December 28, 2012
Are the grills paintable?
1 Answer
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. TL/MA-1498
Customer Service - Q&A
on December 31, 2012

from Michigan asked:
March 13, 2012
Any idea when the preconstruction mounting brackets will be back in stock?
1 Answer
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. CL /MA
Customer Service - Q&A
on March 14, 2012

Randy Wiebe
from Winnipeg Manitoba Canada asked:
December 2, 2011
Can these speakers be used outside
2 Answers
Dear Customer, These are strictly indoor speakers, but check out the ice600wrs, those are for bathrooms and outdoors. CL
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. CL
Customer Service - Q&A
on December 2, 2011

Product Reviews

11 Reviews
64% (7)
36% (4)
0% (0)
0% (0)
0% (0)
55% Recommend this product (6 of 11 responses)
By Brandon
Poughkeepsie, NY
July 1, 2016
The grills are a nightmare.
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.
By Bill
Valparaiso, Indiana
December 22, 2013
Best ceiling speakers I have ever had.
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.
ProsSound absolutely great with a rich base and great tone quality, easy to install. Blend great with the ceiling.
ConsNone that I can find.
By Larry
Sebring, FL
December 5, 2013
Major Sound
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!
ProsGood speaker specs and sound great.
ConsThe mounting tabs are easy to use but they are made from a plastic. Hope they last.?>
Best UsesHome multimedia or large venue.
By Doug
Phoenix, AZ
September 4, 2013
Excellent quality, excellent price
Very pleased with the quality and performance of these speakers. The only thing that would make them better is if they were enclosed.
ProsQuality, performance, price.
ConsNot enclosed. You will need to supply your own enclosure solution to prevent bleeding.
By Bernard
High Point NC
July 20, 2012
Clean look and crisp sound
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!
ProsEasy to Mount, Attractive Design, Easy To Set Up, Great Sound Quality
Best UsesMultiple Rooms / Whole House, Home Theater
By Kevin LV
June 16, 2012
Great Speakers
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.
ProsGood Power Output, Easy to Mount, Great Sound Quality
By Randall live
Roswell, GA
November 18, 2011
ace850mk rock
My wife and danced for 2 hours. Love the sound..
ProsGreat Sound Quality, Easy To Setup, Easy to Mount, Attractive Design, Good Power Output
Best UsesLarger Rooms, We used in a 20 x20 51, Basic Systems, Home Theater
By Paul
San Francisco, CA
April 16, 2010
I was a little skeptical ...
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.
By Doug
Walkerton, ON Canada
February 16, 2010
I installed these ...
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!!!
By Anonymous
Columbia, SC
February 8, 2010
Google in ceiling ...
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
By Don
July 28, 2009
The complete shopping ...
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.