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Home / Product Category / Outlet Center / Clearance / Speakers / Ceiling Speakers Pair 8" MK High Fidelity OSD Audio MK850

Ceiling Speakers Pair 8" MK High Fidelity OSD Audio MK850

Product code: OSD-MK850

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OSD Price: $199.95
Compare at: $624.95 You Save: $425.00 (68%)
Sold in pairs 1 = 1 pair
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Features & Specifications

An excellent home theater or whole house audio system begins with in-ceiling speakers that match your performance and price expectations. For customers who are very particular about sound quality, we offer the MK Series In-ceiling speakers with audiophile level components that provide extraordinary detail. Our absolute top-of-the-line, the MK850 is an 8-inch in-ceiling speaker that delivers a new level of performance for its price range. If you're the kind of listener or movie fanatic who hears every little audio detail, this speaker is the right match.

Underneath the Grill
We call the MK our Ultra Reference speakers because of the premium technologies used such as a Kevlar woofer, pivoting aluminum dome tweeter and a sophisticated crossover network. These components combine to provide deep bass and exceptional top-end frequency response. Although attention to quality is a part of all OSD Audio speakers, upgrades in material, such as Kevlar, make a difference in a good, better and best scenario. First developed in the 1960s, Kevlar has a super high strength-to-weight ratio and responds note for note without coloration, even when you crank up the volume. In addition, the MK850 has front-mounted contour switches that allow users to tailor frequency response to their room arrangement, and therefore compensate for wood floors, stone floor, carpet, etc.

Common Applications of the MK Series
With its 8-inch Kevlar woofer and high end components, the MK Series is not for background music. You will hear detail and customers tend to use these in-ceiling speakers in home theaters or listening rooms. The MK850 performs exceptionally well in large home theaters or rooms over 140 square feet. These speakers come complete with mounting templates and instructions and have paintable grilles/frames to match any décor.

For a retrofit installation, no construction bracket is needed.


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 MK850 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 response to your room arrangement. You won't find yourself wishing for more or less treble, midrange or bass output from one speaker just because you don't happen to sit right between them.



  View Owner's Manual          


By Ed from Idaho on October 18, 2011
Can these be used outside mounted in a deck overhang?
By Customer Service - Q&A on October 19, 2011

Yes, these can be mounted in a deck overhang as long as the area behind the speaker is not exposed to the elements. The Grill is powdercoated aluminum and the frame is ABS plastic. We would recommend adding a bead of silicon chaulk between the frame and the ceiling as you install.

By kong from minnesota on November 18, 2011
Hi. I picked up a pair of MK650's and planning on picking up another pair soon for my surround sound system. I will be running a receiver 110watt x 5.1, I don't have a subwoofer right now since I'm on budget. Would this work better than the MK650 as a woofer replacement for now? Also If I was to pick a pair of MK850 up which location should these be placed for better performace? Front left and right or surround left and right? Thanks.
By Customer Service - Q&A on November 21, 2011

We would recommend picking up the MK670 Angled LCR speaker. The angled LCR speaker was designed for the left, right and center combination for the in-ceiling option. It sounds like you have a center channel already so this would ideal as a right and left channel. Due to the angled design, you can place them in the ceiling closer to the wall where the monitor is mounted. Normal In-ceiling speakers need to be placed almost directly above the seating area due to the limitation of the angle of the standard pivoting tweeter. These also work very well for the actual surround speakers offering more flexibility to where you place them (which should be slightly above and behind the seating area). Regarding your subwoofer issue, the surround sound receiver limits the bass information to the 5 speakers while featuring a dedicate LFE (Low Frequency Effects) output that typically is connected to a Powered Subwoofer. OSD offers an affordable option for a Powered Subwoofer, the S-10. The MK Series LCR speakers sold individually are the best we offer. We also offer an in-wall LCR speaker for the center channel that mounts between two studs in the MK series.


By Haisam from Washington, DC on February 20, 2012
I just received a pair of these speakers; I can't figure how to remove the cover so I can adjust the bass and treble. The instructions are not detailed enough! Is there a video?
By Customer Service - Q&A on February 21, 2012

Hi Haisam,

We have a how to video on our web site. Go to:

Click on videos. There is another way to remove the grill as well. The MK850 is flexible enough before it is mounted to tweak it using your thumbs about five inches apart. Flex the frame pushing down with one thumb and pulling upwards with the other. You will see the grill slowly work its way out. Or you can try using the method highlighted in the video but be carful not to put too much pressure on the mounting ear. Good luck!


Product Reviews

Ceiling Speakers Pair 8" MK High Fidelity OSD Audio MK850
4.5 Stars based on 11 Review(s)
Irvine, CA
3 Stars

Speakers are fine but removing grilles was difficult.
August 9, 2015
I really have not heard them enough to properly rate sound quality. I am very disappointed with the lack of instructions (including a thorough search of your website) for how to remove the grilles.I eventually figured it out but only after damaging the first grille. Perhaps this is a standard issue with all round ceiling speakers by all manufacturers, but OSD failed to address something that has to be a pain to most users. The grilles are not going back on until I'm positive I have the tweeters pointed as I want them. I sure would appreciate OSD sending me a new grille and a few more of the removal tool which did not hold up well.

Fort Collins CO
5 Stars
I would recommend this item to a friend.

Great Speakers
June 22, 2013
I had planned to get the 6.5 inch speakers but they were sold out. After consulting with the very helpful representative on the phone I decided to get the 8 inchers. They arrived in about three days and I could not be happier. They sound great.

Jody Duran
Aurora Colorado
5 Stars
I would recommend this item to a friend.

June 20, 2013
what a great deal for the money and sound great Thanks OSD

Buffalo new york
4 Stars
I would recommend this item to a friend.

Good speakers
February 3, 2012
I installed a whole house audio system and these speaker sound good and handle the power. I have a 14 year old so they get plenty of use and are turned up most of the time.
Easy To Setup, Easy to Mount, Great Sound Quality
Best Uses:
Multiple Rooms / Whole House, Home Theater

Brisbane, Queensland, Australia
4 Stars
I would recommend this item to a friend.

Spitfire MK850 Ultra Reference 8
October 29, 2011
I have the product to be of good quality easy to install and they arrived well packaged.
Best I have heard but, Attractive Design, Easy to Mount, I purchased these for, Have nailed it, Are good value and, Great Sound Quality, System initial thoughts, They represent good value, Easy To Setup, Quality As rear surround, Effect speakers they, Good Power Output, I won't say they are the, A 51 home theatre
Clarity and depth but OK, Speakers they lack the, Compared to my front BW

5 Stars

Just installed the 3 pair ...
May 8, 2009
Just installed the 3 pair of MK850s and they are tremendous. Better than my Bose system. I am thoroughly impressed and appreciate you recommending them.

5 Stars

Love the ...
April 1, 2009
Love the MK850's--these are the cornerstone of my media room. I have two sets along with the MK650's and could not be happier. These sound as good or better than units costing much more.. These "ROCK!"

5 Stars

Great speakers! They are ...
March 31, 2009
Great speakers! They are a perfect match with my big screen. The sounds are so realistic, I can't see how I ever did without them in the past. These are a must have if youÍre looking at a nice set of speakers. Highly recommend!

5 Stars

Have had the speakers for ...
March 30, 2009
Have had the speakers for a little over a week and my first impressions are very favorable. Installation was a snap, the mounting of the units are well thought out and the instructions include the templates to help determine proper location. The sound from these are incredible. I use them for both music as well as part of my surround sound system. The sounds from movies (THX) are tight and accurate. I donÍt have to turn up the volume to get the different sounds from the movies. The speakers are able to handle the various sounds; from music to voices to action effects or background noise effectively. >From a musical aspect, the sound is also impressive. The highs are extremely tight and accurate and surprisingly, even without a subwoofer, the bass is adequate for the majority of the music I listen to. Hooking up a subwoofer adds a new dimension to my previous expectations for in-ceiling systems. I can crank up the volume with very little distortion and am amazed at the clarity of sounds from Art Pepper to Guns n Roses. >From a ñbang for the buckî perspective, one canÍt find a better speaker.

5 Stars

Outdoor Speaker Depot are ...
March 23, 2009
Outdoor Speaker Depot are very easy to get in touch with. They answer the phone, and they know the answers to your questions. Very easy to deal with.

5 Stars

After trying both ICE850 ...
February 17, 2009
After trying both ICE850 and MK850 speakers, I pick MK850 as the winner. DonÍt get me wrong that ICE850 is very nice speaker, especially for movie and class music. But MK850 provides noticeable more bass and better crossover. They both are superb speakers but I preferred MK850.