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Home / Product Category / SPEAKERS / In Wall Speakers / 6.5" In Wall Speakers / In Wall Speaker MKW650 Kevlar® Ultra Reference Pair

In Wall Speaker MKW650 Kevlar® Ultra Reference Pair

Product code: OSD-MK-W650

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OSD Price: $129.95
Compare at: $499.95 You Save: $370.00 (74%)
Sold in pairs 1 = 1 pair
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Features & Specifications

OSD-MKW-650 Ultra Reference In wall Speaker - This 6.5" wall speaker outperforms speakers that cost hundreds of dollars more. Premium technologies such as a Kevlar® woofer send chills down your spine as you listen to your favorite music or movie soundtrack, while the pivoting aluminum dome tweeter delivers outstanding top-end frequency response. The contour switches let you tailor frequency response to your room arrangement, so you won't find yourself wishing for more or less treble, midrange or bass output just because you don't sit in the "sweet spot." There is simply no better price-performance ratio speaker out there.

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 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 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.



14 Questions & 15 Answers
Wayne Grant
from University Heights, OH asked:
March 11, 2018
What is the major difference between the MKW650 and the IW690 speakers?? They seem very similar, only the frequency response is the difference. I'm moving toward the IW690, but I want the absolute best dynamic range. I will be replacing InwallTech® M65.1W's for my 10.2 Auro3D system.
1 Answer
Hi Wayne: MK-W650 is a model we no longer produce. We are selling the current inventory at the reduced price you see on-line ($129.95 plus 10% discount, free shipping). No comparison to the IW690 or the speaker you are replacing. This was our top of the line series, the MK series Specifications Woofer: 6.5†Kevlar® Cone Tweeter: Pivoting 1†aluminum dome Power handling: 15 - 175W Frequency Response 28Hz - 22kHz Sensitivity 92db Contour Switches: ±3dB Bass and ±3dB Treble Impedance: 8 ohms We have moved more to a trim-less look getting away from the Standard Frame. But compare these specs to what you currently have. Power Handling: 175 Watts to 125W 28Hz to 22kHz vs 35Hz to 24.5kHz 92dB vs 88dB 1 Watt at 1 Meter Contour switches for Treble/Bass gives you more control, +3/0/-3dB Great Value Good luck TL/4841
Tim Leahy
on March 11, 2018

from Philadelphia, PA asked:
April 28, 2018
are these meant to be used outside? i have need for two outdoor in-wall speakers, and these would fit the cut out
1 Answer
HI John: The speakers are not dedicated for outside but you could weatherize yourself using waterproof silicon on the back of the frame sealing the frame to the wall. TL/4941
Tim Leahy
on May 3, 2018

from New Jersey asked:
May 2, 2017
My name is Bobby I have a couple of quests on the mkw650 in walls. I am thinking about buying 5 pairs of these for theater room for my fronts sides rear and atoms question I have is how big of a cabinet do I need? The cabinet I would like to build is dimensions are lxwxh 9x3.5x40 dimension are for inside box air space =.72 sqft of air space is that enough if not what do you recommend? Also can u recommend center channel thanks
1 Answer
Hi Biobby: Cabinet size will work fine especially if that is the space you have. The MK-IW-550 is the perfect match for the Center Channel. I would do three pair of the MKW-650 for your left right front, Left Right surround and left right Rear surround. But for ATMOS your best setup would be in ceiling angled speakers. Unfortunately we no longer have the standard frame MK670 6.5" angled speaker. Why angled you ask; the key to any home theater is having all the Tweeters of all channels aimed directly at the Optimum viewing and listening area. The angled speakers allow you more flexibility for placement. You can mount them closer to the wall without unwanted reflections. The option we do have in stock for the ceiling speakers would be our new ACE670 which feature the same Carbon Fiber Woofer and Metal dome Tweeter. But they feature the new Trim-less design unlike the standard frame of the MK. Another thing to consider would be change one pair of the MKW650 to the MKW850 for your right and left front stage speakers or even going with three MKIW550 LCR speakers for your front right, left and center. Your front stage is most critical all other are effects speakers. And of course a minimum of two external powered subs. Let me know if I can answer any other questions, I am assuming you will be doing a 7.2.4 system so you need a 11.2 Receiver. Good luck TL/4344
Customer Service - Q&A
on May 13, 2017

from Bluffton, SC asked:
February 7, 2016
I have a 12x14 room....flatscreen is on the 14' wall, so 12' front to back. I'm looking to purchase the following package for a 5.1 surround system. MKW-650 for FL and FR, MK-IW550LCR, and a pair of MK-650's for rear surrounds. I have a powered sub, so I will add you wireless kit. Is this a good recommended system, or is there a better suggestion?
1 Answer
Hi Greg: That is great choice of speakers. The key is to have your front stage with the proper timbre match which you get by using speakers with the same cone material and tweeters. Its also a bonus when you match the rear channels as well. We also have the wireless sub woofer kit now in stock. Good selections, make sure you use CL3 rated speaker wire, 16 gauge should be fine. Note; also the receiver of the wireless sub-woofer kit that sits on top of the sub woofer needs to be plugged into an AC outlet along with you Powered sub woofer power cord. TL/3697
Customer Service - Q&A
on February 8, 2016

from Austin, TX asked:
January 11, 2014
I am going to purchase a pair of these for my in-wall front left and right speakers of a 5.1 setup. I now need two speakers for the rear left and right which are in the ceiling. What do you recommend to go along with these? In addition, I also need a subwoofer to complete the setup. Is there an in-wall or in-ceiling subwoofer? I want a full 5.1 OSD setup.
1 Answer
Hi Aaron, The MKW-650 will work great for the front speakers of your system. I would recommend using the MK650's for your rear left and right. We do also have in-wall subwoofers like the IWS8, or we do have free standing subwoofers. It depends on whether this will be on carpet or hard floor for which one to get. You would not want to get a down firing sub if it will be on carpet as it will muffle the sound somewhat. Hope this helps. CS 2435
Customer Service - Q&A
on February 20, 2014

from Va asked:
October 18, 2013
Thanks for the quick reply to my question on the need to install these into walls vs. cabinets. A couple of follow ups please: 1. Can you suggest "optimal" cabinet dimensions - perhaps based on the Thiele /Small parameters? 2. Would you recommend a closed or ported cabinet? 3. Can you give some info on the crossover? 4. What are the significant difference between this model on the higher end one?? Thanks
1 Answer
1. Probably best to do anywhere between 12-15" squared or just build a box a bit larger than the one these are shipped in. 2. Do a closed cabinet and put some fiber fill in there to improve the sound quality. 3. Details as far as? 4. This is the high end 6.5" in-wall model. The only higher you can go is up to the 8" version, the MK-W850. That will give you more bass and overall coverage. -BM 2283
Customer Service - Q&A
on October 18, 2013

from Va asked:
October 17, 2013
Do these HAVE to be installed in wall - Can you make an small cabinet for them ans an alternative??
1 Answer
Hi Wayne, Good question! Yes, they do not need to be installed in the wall. You can definitely install into a cabinet if done properly. In fact, that should create a better bass response from the enclosed space. Let us know how that goes, and please ask if you have any further questions. Thanks! -BM 2277
Customer Service - Q&A
on October 17, 2013

from Cameron Park, CA asked:
June 4, 2013
We took out the wall between our kitchen and family room where a pair of Boston 350's were in the wall. They were my rear speakers for my 5.1 surround sound. I just came upon your site and I wanted to know if these MKW-650 would fit or do you have any other suggestions. Since there is no longer a wall I will mount them in the ceiling. The Boston speakers with grill measure 6 3/4 by 9 1/2. I also have two small square speakers in the kitchen their grill measures 6 3/4 by 6 3/4. Any help would be appreciated.
1 Answer
Hi Chuck, For a 6 x 9 cutout, consider a 5.25" speaker. The MKW650 in-wall speaker is larger, so you would have to enlarge the cutout. The IW540, however, has a smaller cutout (closer to yours) and the trim would cover your current opening. We list the cutout dimensions for all the speakers in the "view more" section under features and specs. CL/MA 1951
Customer Service - Q&A
on June 10, 2013

from aberdeen SD asked:
January 27, 2013
I have a 11'x16' entertainment room in my basment, has 7' ceiling, wondering how many speakers i should use and where the best place is to install them
1 Answer
Hi Paul, What size is the monitor and will it be on a cabinet or mounted on the wall? Are you looking to do a custom in-wall/In-ceiling sound system? Can you supply a basic drawing featuring TV location and the seating options? TL/MA - 1584
Customer Service - Q&A
on January 28, 2013

from Houston, TX asked:
December 13, 2012
I am looking into replacing in wall speakers throughout house. Cuts have already been made in sheetrock and most have one side of speaker bracket screwed to studs. Is there a way to use the MKW-650 and secure one side to stud without having to move cut out over 2 inches?
1 Answer
Hi Abel, Can you take a couple of different pictures of your speaker bracket and overall installation and send them to me at This way, I can better answer your question. TL/MA - 1464
Customer Service - Q&A
on December 13, 2012

from idaho asked:
December 5, 2012
New Construction Bracket NCI6 - I can't find this bracket in your store. What other brackets can I use? Thanks!
1 Answer
Hi Mikael, We no longer carry brackets for the MKW-650 speakers becuase they are nor required for installtion. Simply install in the drywall, make the cut and then secure the speakers with the dog-eared clasps around the trim. CL/MA 1444
Customer Service - Q&A
on December 7, 2012

from Larvik, Norway asked:
July 4, 2012
do i need to make a case inside the walls for these? and the mk-iw550 center speaker? or any other ideas? petter
1 Answer
Hi Petter: It depends on how much room you have behind the speaker. In the US I would know the area behind the speakers would be roughly 10.16cm deep and 39.4cm wide. And typically there would be additional fire breaks (cross studs) above an below the speaker. The speaker itself usually provides an effective seal with the Sheetrock it is mounted to. It does not hurt to add a little fiber file around the speaker to fill the cavity. Certainly if your application has no enclosure on the backside of the intended wall you would need to custom build something. All our in-wall and in-ceiling speakers feature an infinite baffle so it can fit into almost any enclosure size. The Fiber fill helps fine tune the installation. I hope that helps TL
Customer Service - Q&A
on July 6, 2012

from Kelowna, BC asked:
April 5, 2012
Are the screens and trim for the MKW-650 paintable
1 Answer
Bill, Yes they are paintable, we recommend spray paint only for the grills so it does not clog the holes. There is a cloth on the back of the grills that must be removed before spray painting. There is also Cutout template that doubles for a paint shield that covers the baffel while you paint he frame.CL
Customer Service - Q&A
on April 6, 2012

from South Jordan, Utah asked:
November 28, 2011
I want to buy 2 pairs of these for my 5.1 surround sound home theater living room (2 front and 2 rear). I already own a sony subwoofer for the lows and will be pushing these speakers with my Onkyo 509 receiver. So far I have heard of nothing but good reviews for these OSD speakers. Overall, how do you like these speakers and if you could go back and do it again is there anything that you would change? Thanks! - James
2 Answers
James, I love to brag about these speakers, they are top of the line. The MK's will blow you away with clarity and the resonace the kevlar material gives you are even better than the ice series because they have a larger magnet! Good choice, let us know how they sound once you get them in! CL
Customer Service - Q&A
on November 29, 2011
Also... The MKW-650 is a great choice for the Left and Right channel of the front stage. You mentioned a Sony Subwoofer but no center channel speaker to complete the LCR (channels 1, 2 and 3 of the 5.1). The perfect match for these speakers is the MK-1W550LCR dual 5.25". It features the same cone material, frequency response, and identical tweeter as the MKW-650 speakers. This provides the perfect timbre match for your front stage. You can go with the MKW-650 for the rears as well or you can go with two each of our OSD MK-670 angled In-ceiling LCR speakers that would be ideal mounted above and slightly behind your seating/viewing area. Sometimes the ceiling has more access. This would be the optimum Custom Home Theater system that provides excellent performance at a great price. If we had to go back, we would make the exact speakers—we truly believe in the quality.
Customer Service - Q&A
on November 29, 2011

Product Reviews

9 Reviews
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56% Recommend this product (5 of 9 responses)
By James
North Carolina
April 18, 2013
One word.....AWSOME!!!!!
I must admit I was a little skeptical when I first purchase this set, but I that all went away the instant I fired up my Denon word........AWESOME!!!!! I've now got crisp clean sound that is spacious, but not overwhelming and I can hear the detail in my music and movies the way they were meant to be heard.
By montea davidson
gaffney sc
August 1, 2016
my in wall speaker
I in installed them my self I was very happy with the outcome the quality is good sound great price is the best I would refer them to all ov my frieends
Bowie, MD
October 16, 2013
Great speaker value
I bought these speakers for my theater room which I am renovating from the previous owners configuration. The speakers arrived in a few days of the order in great condition. They were easy to install and look great. The in wall installation the way to go. The sound is great . I had friends over to watch some foot ball and they were amazed at the quality of sound produced by the speaker system.So far no problems.
Pros-great value -good sound -easy installation -quality construction
Best Uses- surround sound -media/theater rooms
By Marc
Jersey Shore
July 11, 2013
Good product
Easy install Cranked right up Love em
ProsQuality Easy install
By BobD
Salem, MA
February 20, 2013
Excellent sound and a good value
I now own both the IW-690 and the MKW-650. I believe you can hear the increased dynamic range of the MKW and for the extra few dollars it is worth moving up to this model. As other speakers in my whole house system fail I will be back to the OSD site for my replacements.
ProsAttractive Design, Easy To Set Up, Great Sound Quality, Easy to Mount, Good Power Output
Best UsesHome, Multiple Rooms / Whole House, Larger Rooms
By Anonymous
April 20, 2011
Wow, you guys are the ...
Wow, you guys are the best. I ordered a great pair of high performance speakers and they got delivered so fast I couldn't believe it--two days !! Your prices are fantastic for the high quality units I received. I ordered 2 back boxes a couple days layer and boom--got those in a couple days too and again the lowest price on the internet. Thanksand keep up the great deals and super service. I've been telling all my friends to check out OSD !
By Barry
Ozark, MO
November 25, 2010
I recently installed a ...
I recently installed a pair of these with a IW 550 LCR center and with the small subwoofer from here as well. Unbelievable sound. I am a musician and sitting in the room listening to these, I heard sounds in the recordings I had never heard before through my Advents or through my Onkyo 5.1. It is an incredible experience. I am thrilled with these speakers period. The price just enhances the experience. Easy to install and magnificent to listen to
By paul sheppick
October 23, 2009
If your looking for ...
If your looking for inexpensive speakers that will rock your house these are it. This produce way better sound than my bose system. By far the best speaker I have ever installed. They are so good I have done them for 3 home theaters.
By Alberto
July 9, 2009
I installed 5 of this ...
I installed 5 of this speakers for my home theatre system, and the sound is excelent,I connected them to my yamaha rx-v465 and a 100 watts sony subwoofer and they are perfect for this application.