Features and Specifications: In the single speaker category the MK670 sports a truly innovative design. The MK670 single speaker includes an angled 6.5” Kevlar woofer, set at a 15° degree angle and a pivoting 1” aluminum dome for amazing imaging and staging. The critical high and midrange frequencies are pointed toward the listener, not the floor, so when your video tracks left to right, the sound tracks right along with the video. With power handling up to 175, this is an ideal speaker to build a great ultimate home theater.
Why an Angled Speaker?
The beauty of an angled speaker like the MK670 is that you can tailor the sound to your room. Suppose your sofa is not positioned directly below your ceiling speakers. The angled speaker allows you to point the audio directly at the "sweet spot." Also sometimes customers do not have room for an in wall center channel and use three MK670 in-ceiling speakers for front surround. This configuration is especially helpful when the listening area is close to the rear speakers.
The Power of Kevlar!
Kevlar brand fiber is an innovative technology combines high strength with light weight to help dramatically improve the performance of a variety of consumer and industrial products. Lightweight and flexible, Kevlar has evolved over four decades of innovation to do everything from helping save thousands of lives around the world to helping make safer homes and vehicles to helping land spacecraft on Mars. If it needs to be light, strong, or safe, it needs to be Kevlar. Kevlar Cones are featured on both our MK Spitfire and Kevlar Series Speakers.
Testing the Sound Quality of In-ceiling Speakers
Many customers like to test the sound quality of their new OSD Audio in-ceiling speakers before they install them. Keep in mind, however, that these flush-mount speakers are designed to be used in the wall or ceiling. Uninstalled in-wall/in-ceiling speakers will sound weak and tinny because without the proper enclosure (in this case your house wall) the speaker can’t produce the sound pressure level it needs. If you want to try them out, we recommend mounting the in-ceiling speakers into a box of about 3 cubic ft. or larger; or simply mount them in the ceiling and then listen. This will give you an accurate measure of the sound quality.
Paint the Grilles for a Custom Touch!
Many of our customers like to paint the grille of their in-ceiling speakers to match their room décor. Painting the grilles/trim won’t harm your speakers but be sure to use spray paint; never a brush. Brushing the grilles can clog the holes and interfere with sound quality. We also recommend using a fine spray paint gun, the inexpensive kind that you can pick up at your local hardware store. Our in-ceiling speakers also come with a paint shield to help guide you.
For a retrofit installation, no construction bracket is needed.
- Woofer: 6.5” Kevlar Cone (15 degree angle)
- Tweeter: Pivoting 1” aluminum dome
- Power handling: 15 - 175W
- Frequency Response 30Hz - 22kHz
- Sensitivity 92db
- Contour Switches: ±3dB Bass and ±3dB Treble
Impedance: 8 ohms
- Unit Dimension: Diameter 9 1/2” X Depth 5”
- Cut-Out Diameter: 8-1/8”
- Quick-turn mounting arms for easy installation
- Weather-resistant design includes powder-coated grill that will not rust
- Warranty 10 Yr
- New Construction Bracket OSD-NCCB6-K
Questions and Answers:  By chris from boston on September 22, 2012 My question is this. I am redoing my entire attic and want to include in ceiling speakers. The issue is that I am going to have spray foam insulation. What is the best way to protect the speakers in the ceiling with the spray foam? Is there an incasement that I can put the speaker in. By Customer Service - Q&A on September 24, 2012Answer:Hi Chris,
Sounds like you’re referring to a back box. While not required, back boxes can enhance the performance of your in-ceiling speakers and reduce sound carrying to other rooms or floors up to 10 dB. We sell the BB6, which would improve the sound pressure level as well as protect the speakers from the insulation. Take a look at our learning section for more tips in installing in-ceiling speakers:
http://www.outdoorspeakerdepot.com/how-to-install-ceiling-speakers.html
CL/MA
1302By Kevin from hawaii on October 13, 2011 do they come with a new construction bracket? By Customer Service - Q&A on October 17, 2011Answer:No these do not come with a new construction bracket, nor do they require one. If you prefer to use a new construction bracket, the appropriate model bracket for this speaker is NCCB6-K.
http://www.outdoorspeakerdepot.com/pcbc600.htmlBy Hank Adkins from Houston TX on November 10, 2011 Does this speaker require a back box, if so can they be purchased separately? By Customer Service - Q&A on November 10, 2011Answer:No it doesn't require. Your drywall is the back box.By John from Utah on February 19, 2012 How do you keep insulation from getting on these speakers? I have blown-in insulation and I have to use 20 of these babies. By Customer Service - Q&A on February 20, 2012Answer:Hi John:
Here is a affordable solution...
It is like a sleeve that covers the speeaker protecting it from loose debris getting behind the grill inside the basket...
http://www.partsexpress.com/pe/showdetl.cfm?Partnumber=300-265
TLProduct Reviews:
Ceiling Speaker Angled Kevlar Woofer OSD Audio MK670
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5 Stars based on 7 Review(s) |
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great speaker for home theater and great price
March 22, 2013

Its good to do your research on your off-brand speakers. You could save yourself a lot of money.
I was a little skeptical on buying this brand over other brands mentioned an avsforum. Haven't heard much of these speakers, but liked what I saw listed on their specs. The specs matched up pretty similar or if better to the Bowers and Wilkens CCM663 (found at BestBuy Magnolia to be demoed). I decided to give the MK670 a try and if I didn't like them, I would just return them. Stuck them in the ceiling, and never thought twice about taking them down.
Comparing them to the CCM663, I found the MK670 to sound slightly more tinny than the CCM663, but was fixed when changing the impedence from +3db to 0db. Also wasn't bassy with the +3db, but are you really expecting a lot of bass out of your ceiling when the setup is for a home theater system. That's what a subwoofer is for.
Bottom line...if you have the money, go ahead and spend it on some overrated, overpriced speaker. My guess is that you came to this website because you aren't made of money and you liked where the price point of these speakers are at. GET THEM...you won't be disappointed.
BTW, I bought 3 for my fronts (sold individually), and the MK650 for my rears (sold as a pair). The room these reside in is a space of about 20x24ft room.
Pros:price
easy installation
Cons:not enough bass to be used as a whole house speaker.
Best Uses:Home theater only. I wouldn't use these as a whole house speaker.
Ed
Virginia Beach, VA
5 Stars
I would recommend this item to a friend.
Amazing sound
April 13, 2013
Using three of these Speakers as LCR. All I can say is wow!! They are constructed great and feel high quality. The low frequency is impressive as well as the angled design which makes a big difference. Thanks OSD!
Cons:Dog ears are a bit flimsy. cant see them holding up well if I need to remove them often.
Marco
Toronto, Canada
5 Stars
I would recommend this item to a friend.
I love the sound of these speakers
September 18, 2012
I have been researhing ceiling speakers for about a year
and I decided that for the price and features, I would give these
speakers a try. I am glad I did. These speakers sound excellent and
I would have to paid two to three times more to get the sound that
a critical listener would like. I also like the quality of these
speakers.
Pros:Easy To Set Up, Quality Construction
Best Uses:Upgrade
cheap skate
Dallas Texas
5 Stars
I would recommend this item to a friend.
Great sounding speaker
March 7, 2012
Sounds as good as speakers costing three times as
much
Pros:Quality Construction, Low Power Consumption, Easy To Use, Easy To Set Up
Best Uses:Upgrade, Replacement
J
Chicago
5 Stars
I would recommend this item to a friend.
Best Bang for Your Buck
January 10, 2012

Bose, Infinity, Polk, Boston Acoustics, Klipsch, Outdoor
Speaker Depot. "Which one of these things is not like the other?"
Well, the last one, of course. What the last one has that the
others do not is BEST value. Who would have ever thought OSD would
be listed with these names? Not me, but I tell you what, I put OSD
ahead of these when I recommend speakers from now on. This speaker
is used for my center channel for my home audio system. It is
powered by an Onkyo receiver~110 watts per channel. The overall
sound output and quality of this speaker is fantastic! I also play
them in all channel stereo mode. These speakers never sound harsh
and just beg for more power and volume. They have very well
constructed frames, impressive materials, and crossover units that
made me raise my eye-brows in disbleif because of what I paid for
them. It's true if I spent 5 times what I paid for them, I would
say they are still worth the cost. Both lows and highs have a
switch for -3, 0, or +3 db sound attenuation or enhancement. They
have a very pleasant sound, highs sound crisp, clean and never
harsh. Mids are smooth and warm. Lows are not earth shattering, but
if they were in their own enclosure (mine are backed by insulation)
it may be a different story. Mate them to a powered subwoofer to
get the most from the overall sound. Overall they do not sound as
loud as the ICE660 I also purchased from OSD, but they also do not
sound as harsh at times at high volume levels as the ICE660's did.
If you want high power handling and superior quality materials and
flexibility get these speakers!
Pros:Easy To Setup, Easy To Use, Quality Construction
Best Uses:Upgrade
Tony B
San Deigo
5 Stars
I would recommend this item to a friend.
MK speakers rock!
August 5, 2011
I have 7 of the MK670 angled speakers in the lounge for
the Home cinema and they are great - the IC650s are are in the
bedroom and match the sound quality of the 670s perfectly. truly a
great speaker. Highly recomend them to anyone.
Pros:Easy To Setup, Easy To Use
Darren
South Bend, IN
5 Stars
MK670 angled 6.5? Kevlar Ceiling Speaker
July 23, 2011
Used these as the front channels in our newly constructed
home lounge room. Sound is clear, with good bass tone... paired
with the MK650 for surround speakers. No complaints or problems at
all with them, installation was easy using the included
template.
Pros:Easy To Setup, Easy To Use, Easy installation
usakiwi
Modesto, CA
5 Stars
I would recommend this item to a friend.
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