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    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Product # 13683
    Size: 8in
    4in 6.5in 8in
    In Stock This item should ship tomorrow (1/17/2018) if ordered within 18 hours 30 minutes

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    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)

    8-inch Carbon Fiber In-Ceiling Speaker

    This carbon fiber in-ceiling speaker is the perfect combination of performance and style. The use of carbon fiber for the woofer means that the speaker can hit harder, go lower, and handle more power with significantly less distortion than conventional drivers. The silk dome tweeter produces clean, crisp, and clear highs and mids. You can fine tune the blend of sound using the built-in high frequency attenuator in case the sound is too bright. The metal grille can be painted to match your ceiling and attaches easily using magnets.

    Louder with Less Power | Higher Power Handling with Less Distortion

    Control High Frequencies | Easy to Install | Use up to 10AWG Cable

    8-inch Carbon Fiber 2-way In-Ceiling Speaker with Magnetic Grille

    Sound Quality
    Sound Quality

    Sound Quality: Life is too short for speakers that don't sound great! We believe that the whole point of listening to music is to hear it as the artist intended. Our engineers and audio experts have spent countless hours listening to and comparing various speakers until we were satisfied we had found models that fit our demanding standards.

    Style: While Monoprice believes in function over form, there is nothing wrong with having speakers that look good, too. This in-ceiling speaker helps reduce clutter by getting your speakers off the floor or bookshelves, and the magnetic metal grille can be painted to match your ceiling, so it virtually disappears from view.

    Simplicity: Installation is as easy as it can get. Use the included cutout template to mark your ceiling, make the cut, then using only a screwdriver, secure the speaker to the ceiling with the easy install mounting tabs.

    Carbon fiber gives you higher sensitivity, deeper bass, and higher power handling.

    8-inch Carbon Fiber In-Ceiling Speaker

    Carbon fiber woofers are lighter and stiffer than conventional materials used in speaker manufacturing. The speaker cones are more sensitive to power, which means that you get more volume using less power. Additionally, the stiffer material means deeper bass and higher power handling, with significantly less distortion.

    8-inch Carbon Fiber In-Ceiling Speaker

    • 160 watts maximum input power
    • 8" carbon fiber woofer with rubber surround
    • 1" silk dome tweeter
    • 50Hz ~ 20kHz frequency response
    • Built-in high frequency attenuator
    • Paintable magnetic grille

    Tools Recommended for Installation

    Recommended Tools

    • Stud finder
    • Carpenter's level
    • Marking pen or pencil
    • Electric drill
    • 14AWG CL2 in-wall rated speaker wire (SKU 2821)
    • Wire strippers
    • Phillips screwdriver

    1 Year Warranty


    Monoprice not only stands behind every product we sell with a 1 year replacement warranty, we offer a 30-day money back guarantee as well! If the product you purchase does not satisfy your needs, send it back for a full refund.

    Quality at a Fair Price

    Quality at a Fair Price

    Monoprice's rugged design and rigid quality control standards deliver high quality products at fair prices.

    Service & Support

    Service & Support

    You're never on your own with Monoprice products! We have a full team of friendly and knowledgeable technicians available to answer your questions, both before and after the sale. Contact our technical support team for questions about our products, troubleshooting, or even suggestions for products to fit your particular needs. Not to be outdone, our friendly and helpful customer service team is here to make your ordering, delivery, and any possible returns a quick and painless operation, from start to finish!

    Model 13683
    Speaker Type 2-way coaxial in-ceiling
    Woofer 8" carbon fiber cone
    Tweeter 1" silk dome
    Frequency Response 50Hz ~ 20kHz
    Crossover Frequency 3.1kHz
    Nominal Impedance 8 ohms
    Power Handling Capacity (RMS) 80 watts
    Power Handling Capacity (Peak) 160 watts
    Sensitivity (2.83V) 90dB
    Overall Dimensions 12.1" x 4.1" (308 x 103 mm)
    Cutout Dimensions 10.67" x 3.90" (271 x 99 mm)
    Weight (each) 6.8 lbs. (3.1kg)

    Start typing your question and we'll check if it was already asked and answered. Learn More
    Browse 27 questions Browse 27 questions and 46 answers
    Are backboxes available for new construction?
    John M on Jan 4, 2017
    BEST ANSWER: Thanks for the question. We do not currently stock backboxes for this Speaker. Any backboxes that are compatible with the size of the speaker would work however. Hope this helps.
    what are the differences between these and the Alpha series? Do they sound different?
    New User U on Feb 9, 2017
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Black Back Ceiling Speakers 8-inch 2-Way Fiber with Covered Crossover (pair)
    Black Back Ceiling Speakers 8-inch 2-Way Fiber with Covered Crossover (pair)
    BEST ANSWER: Thanks for you interest in these ceiling speakers. Overall tone of the Black Back Speakers will be very similar to the popular Caliber series of Kevlar driver models. Carbon fiber will handle more power before distortion and last longer than Kevlar. Kevlar is better in humidity like bathrooms. The black Back has a protective cover that block debris from getting in to electronics and drivers but retains an open sound. There is no Back can available at this time for the Black Back.
    Is there an install guide for this metal backs? Will these prevent blown insulation from getting into the Alpha ceiling speakers? (I read that one idea is to insert a square of fiberglass insulation batting into the attic, before inserting a ceiling speaker.)
    Tristan R on Feb 27, 2017
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Metal Back Can for 8-inch Ceiling Speaker with Brackets (pair)
    Metal Back Can for 8-inch Ceiling Speaker with Brackets (pair)
    BEST ANSWER: We installed these cans on 16 Alpha 8" speakers, and they're great. See my review there for details. They do prevent blown insulation from getting into the speakers. They also helped with bass delivery, and richness. I removed the bass port on the alphas to take advantage of the cans. A few tips: The cans come with a tiny square of fiberglass insulation, which I can only assume is to smooth out the sound delivery. It isn't attached in any way, and when I first attached the cans to our speakers, it seemed to move around. I threaded the speaker wires through a slit in the fiberglass, and attached it to the back of the can with some gorilla tape so it quit moving around with heavy bass. We also wrapped our cans in Noico, which is like dynamat, as the cans flex a lot with the bass port removed. We were doing new construction, so we wanted to make use of the speaker rings. Be aware that the ring supports are not made for residential construction. They're made for commercial drop ceilings. We had to use an angle grinder to cut off each end of the supports so we could screw them to the ceiling trusses prior to sheetrock.
    Do these work with the 8" Alpha 13683 or the 8" Amber 24435?
    Brian L on Sep 27, 2017
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Installation Kit for a Pair of 8in In-Ceiling Speakers
    Installation Kit for a Pair of 8in In-Ceiling Speakers
    Amber Ceiling Speakers 8-inch 2-way Carbon Fiber with Ribbon Tweeter (pair)
    Amber Ceiling Speakers 8-inch 2-way Carbon Fiber with Ribbon Tweeter (pair)
    BEST ANSWER: Yes they will, according to the other person's answer about the size of the speaker. Scroll down.
    Can you aim the tweeters in this speaker like the Caliber series?
    Christopher G on Dec 27, 2016
    BEST ANSWER: Yes, the tweeters can be moved about 15 degrees tilt to any direction. Use the center waveguide ring around the silver silk dome tweeter to position it to your liking. Take care not to poke the tweeters, the inner housing moves fairly easy.
    why do the wires look tiny? should the be at least 14awg like the speakers say is recommended?
    jonathan r on Mar 20, 2017
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Metal Back Can for 8-inch Ceiling Speaker with Brackets (pair)
    Metal Back Can for 8-inch Ceiling Speaker with Brackets (pair)
    BEST ANSWER: Thank you for your question. When it comes to speaker wire there are many different opinions on which gauge of speaker wire to use. We have a guide in choosing which gauge to use for various lengths:


    Although we do not have information on the gauge of the wire in the metal can, the short run from the back of the can to the speaker would not cause issues. I hope this helps.
    says this will work with other speakers of similar dimensions, will it work with
    Product # 13683?
    Kristy C on Apr 17, 2017
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    ABS Back Enclosure (Pair) for PID 4104 8in Ceiling Speaker
    ABS Back Enclosure (Pair) for PID 4104 8in Ceiling Speaker
    BEST ANSWER: The metal 14365 cans WILL NOT work on the 4104 ceiling speakers. The ring is about an inch too wide in diameter for the clamps to work, the can covers the fingers that clamp down on the ring, and the can can only rest on top of the speaker but does not attach (against code).
    Caliber In-Ceiling Speakers, 8in Fiber 2-Way (pair)
    Caliber In-Ceiling Speakers, 8in Fiber 2-Way (pair)
    Are these suitable for a porch ceiling?
    Chris I on Feb 15, 2017
    BEST ANSWER: I installed two pairs of the 8" Alphas in my living room ceiling and they sound good. I see no reason why they wouldn't work in a porch, but you will need to make sure that there is sufficient space between joists to fit them between joists. That said, I used a pair of 6" Calibers in my porch installation because they were cheaper and because they have matching back boxes. I wanted back back boxes to keep bugs and dust from getting to the speaker. Also, the Calibers have grills that are friction fit, and I wasn't sure if the magnetic grills on the Alphas would agree with changing temps, etc. outside. The calibers sound great with the back boxes on my porch. But I imagine the 8" Alphas would sound even better.
    Building a new house and planning ahead to family room surround setup, an open layout 20x21 room with 3 walls, the 4th is completely open to kitchen. We want minimal clutter and willing to sacrifice some audio fidelity so i'm going for an in-celing speaker setup and using the best bang for the buck (Monoprice) speakers. I like the specs and feedback on this Alpha carbon fiber 8" speaker, however what other speakers would you match it to for a 7.1 setup? I anticipate most of the time we'll use it for 2-ch general tv sound, some for music, and lastly for surround movies. Thx.
    A shopper on Dec 28, 2016
    BEST ANSWER: All of the Alpha series speakers are matched for even sound. Big room should have a big sub.
    Hi Dave - it seems you have all the answers regarding the Amber ribbon speakers. Are there any more details you can provide on the upcoming ribbon in-wall and ceiling line? I am mostly interested in dimensions. I have contractors finishing my basement and I getting close to needing to run low voltage and I have already purchased Alpha speakers (13683, 13616, 13618) for my home theater and would like to replace them with these ribbon speakers when they become available - can't wait until October to install though. I have depth limitations for the rear surrounds (3.5" total clearance) which is why I had to get the 6.5" alphas. My concern is that I don't want to have a larger hole in my wall than what the ribbon will need.

    On another note, does anyone use these speakers (15700) as left front and right front speakers? I want to get these but am concerned they will overpower the alphas I will be using everywhere else. It would be great to know all the dimensions (depth included) of the upcoming ribbon speakers so that I can make sure I future proof my setup and have my contractors allow for them. Thanks!
    Nicholas F on May 23, 2017
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Alpha In-Wall Speaker Center Channel Dual 5.25-Inch Carbon Fiber 2-way (single)
    Alpha In-Wall Speaker Center Channel Dual 5.25-Inch Carbon Fiber 2-way (single)
    Alpha In-Wall Speakers 6.5-Inch Carbon Fiber 2-way (pair)
    Alpha In-Wall Speakers 6.5-Inch Carbon Fiber 2-way (pair)
    Amber In-Wall Speaker 6.5-inch 3-way Carbon Fiber Column with Ribbon Tweeter (each)
    Amber In-Wall Speaker 6.5-inch 3-way Carbon Fiber Column with Ribbon Tweeter (each)
    BEST ANSWER: The new Ambers are still in development. We have not finalized dims at this time. I am trying to keep the dims similar to the Alphas. 3.5" is my target depth for all of the installed speakers to fit within 2x4 studs.

    The use of the Amber 15700 with Alpha surrounds seems to be a pretty popular formula. If you scroll through the reviews you will see quite a few folks doing just that.
    Should the "vent" cover on the 8" Alpha speaker be removed when installing the back can? Should I also add damping material?
    Brian H on Feb 16, 2017
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Metal Back Can for 8-inch Ceiling Speaker with Brackets (pair)
    Metal Back Can for 8-inch Ceiling Speaker with Brackets (pair)
    BEST ANSWER: If the original design of the 8" Alpha was to have the vent removed if using the enclosures (creating a ported enclosure), it was later changed. What looks like a removable port cover isn't actually removable. In addition to being screwed to the speakers, it's also pretty permanently glued. I played with the enclosures a little before installing them and no matter what I did, the bass was pretty unimpressive. E.G. my 5" bookshelves blew these away bass-wise. In the end, I disassembled the tweeter bridge to seal the hole where the tweeter wire goes through as it whistles quite noticeably once you add the enclosures and sealed the speaker to the enclosure all with household silicone. I also filled the enclosures with additional fiber fill. Hope this helps.
    What range of amp wattage (continuous/rms) do you recommend for each size of these Alpha speakers?
    New User U on Jan 4, 2017
    BEST ANSWER: Thanks for the question. The RMS and Peak power handling capacity is included in the specifications section of the product description for each speaker in the series. for the 8 inch speaker, the RMS power handing capacity is 80 Watts with a Peak Power handling capacity of 160 Watts. Hope this helps.
    How many in ceiling speakers come with it?
    New User U on Jul 14, 2017
    BEST ANSWER: 2 speakers or 1 pair
    what is the purpose of the slot ? are these slots used to direct bass into the room ?
    New User U on Mar 15, 2017
    BEST ANSWER: From my understanding, it's a bass vent. You can use them sealed of vented. If we are talking about the same slot...
    Can I use these ceiling speakers for atmos?
    New User U on Feb 15, 2017
    BEST ANSWER: You could, I think these would be a bit large except in the very biggest of theater rooms.
    What mounting brackets would be recommended for new construction?
    Justin W on Jan 17, 2017
    BEST ANSWER: I didn't use any just the one that comes built in with the speakers. they are butterfly screws and open when you tighten them. just be careful as they are plastic and can break if tighten to hard or fast.
    How do I know how to set the high frequency roll off switch on these speakers?
    Steve L on Dec 3, 2017
    BEST ANSWER: The high frequency roll-off switch is set to your taste. Typically if you have a "live" room, a room with mostly reflective surfaces such as hard floors, lots of glass, and minimal furniture, you will hear high frequencies reflect and bounce around the room. The roll-off mellows the sound to compensate for the extra reflections.
    Would these be damaged if used under a covered porch outside? Moderately humid climate, temperatures from -10 to 100 F
    John R on Apr 1, 2017
    BEST ANSWER: Thank you for your question. The intended use of these speakers would be use indoors. They would not be rated to withstand outdoor conditions. Use outside of the intended purpose would also void the warranty. We would not recommend use of the speakers outdoors.
    What is the coverage angle on these speakers?
    Evan P on Feb 26, 2017
    BEST ANSWER: Thanks for your interest in our ceiling speakers. Most ceiling speaker unless otherwise noted have a 110° conical coverage area.
    does this one work with alpha and amber series?
    A shopper on Jan 15, 2018
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Rough-in Bracket for 8in Round Speaker (Each)
    Rough-in Bracket for 8in Round Speaker (Each)
    Amber Ceiling Speakers 8-inch 2-way Carbon Fiber with Ribbon Tweeter (pair)
    Amber Ceiling Speakers 8-inch 2-way Carbon Fiber with Ribbon Tweeter (pair)
    4.7 / 5.0
    37 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    Great Audiophile Grade Speaker
    I installed these speakers to replace four Monoprice 6.5 inch speakers that I had previously installed. I'm using the speakers as surrounds and rear speakers in a home theater set up. I also have tower speakers for front left and right, a center channel, and a subwoofer. I was in the market to upgrade my speakers since it appeared that my front speakers were just overpowering the 6.5 inch ceiling speakers I had. I shopped around and I saw these 8 inch ceiling speakers from Monoprice, and it looked like they are from a new line of more premium grade products. The product description looked very impressive when compared to other speakers from high end manufacturers. As usual, the Monoprice price was very competitive. I pulled the trigger and received the four speakers in one box. The packaging was very secure and showed an attention to detail and that you just don't see in this price range. I checked out the speakers and was impressed with the quality of the components and the overall weight, and materials. I enlarged the holes to accommodate the new speakers and found the installation to be relatively easy and straightforward. The only downside was cutting the drywall can be a very messy job, (certainly not the fault of the speakers), and the weight of the speakers made it tough to hold them up with one hand for an extended period of time while the installation screws were tightened. However, I do consider the weight to be a plus in speaker performance and construction quality. I fired up my system and watched some of my reference movies and I was very impressed with the improvement in sound quality over my old speakers. They were much more open and detailed. My wife and I heard sounds we did not hear before coming from the surrounds and rears. So far I am very impressed with the overall sound quality. I can't imagine a better product for the price.

    PROS: Substantial construction quality, Excellent sound!

    CONS: Install can be tough due to speaker weight
    January 19, 2016
    Wow....Amazing. DO NOT hesitate to purchase these speakers.
    I looked at these speakers for about 2 months before finally purchasing them. So, to be completely honest, I really thought that Monoprice was deleting negative reviews. But I decided to give the following speakers a try ( 2 sets of Alpha In Ceiling Speakers 8 Inch Carbon Fiber 2-way (pair), 2 Amber In Wall Speaker 8-inch 2-way with Ribbon Tweeter (single), 1 Alpha In Wall Center Channel Speaker Dual 5.25 Inch Carbon Fiber 2-way (single), and 2 Amber 6.5-inch Carbon Fiber 3-way In-Wall Column Speaker with Ribbon Tweeter (each).) I purchased these speakers for a Dolby Atmos Home Theater set up. I have these speakers connected to a Onkyo TX-RZ810 receiver. I cannot say enough good things about these speakers. They are very Crisp, and have a very clean and clear sound. The speakers look absolutely amazing as well. I wish I could upload some pictures to show how well they look. I would not hesitate on purchasing these speakers. You WILL be satisfied.

    PROS: Great Speakers, Great Price, Look beautiful.

    CONS: Shipping is higher than it should be. (Not really a default of the speakers, but I wish Monoprice would have better shipping rates)
    October 1, 2016
    Awesome for whole-house audio
    We've installed 16 of these 8" alphas throughout out home and absolutely love them. A dozen are used in our whole-house audio system using Sonos Connect:Amps. I have 2 pair of these connected to each Sonos. I'm impressed with the deep rich sound we're getting out of them even without adding a subwoofer. The remaining 4 are in the ceiling in our theater room for 9.1 audio. They pair nicely with the Alpha 3-way columns in the walls. A few things we did that I think made a big difference... I removed the bass port plug in each speaker, and added the matching Monoprice metal back cans to each speaker. The difference for us with and without was substantial. Once installed, the back cans flexed a lot with heavy bass. To tighten things up, and prevent any rattles or vibration, I wrapped all of our back cans in Noico 80 mil sound deadening mat, similar to dynamat. Overkill? Maybe but they sound awesome, and are rock-solid. And, I was able to do all of our speaker with one pack of 36 sqft of Noico for a couple bucks a speaker. We also sprayed all of the grills to match our ceiling colors. Before doing this, we removed the grill liners that look like dryer sheet. I expect that they would fill up with paint if left in place. After spraying, we re-attached them to the inside of the grills with a little 3m spray adhesive. For those damaged during removal, we replaced them with 'interfacing' purchased at a fabric store.
    The weak spot in these speakers is the plastic tabs, which are easy to break if you're screwing them in with a cordless driver. especially if they're carrying the weight of back cans, or you're dealing with multiple layers of sheetrock in a home theater. Otherwise, these are a can't-lose purchase.
    April 12, 2017
    1 year ago
    Perfect Addition
    I replaced a pair of bookshelf speakers we have been using with our Sonos Connect:Amp- WOW! That is the best way to describe the difference. Granted a bookshelf speaker and a ceiling mount will sound different, but the quality as compared to cost is impressive. I connected pairs of these speakers in parallel to lower the ohm load to 4 ohms for the Connect:Amp and split them between two rooms- one being left channel the other right- cheap solution to have multi-room controllable sound. Definitely worth the cost and installation was easier than expected, I installed all four in about 40 minutes.

    PROS: Installation and ease of installation

    CONS: None
    April 19, 2016
    Great ceiling speakers
    I have 3 pairs of these in my house, another pair waiting for me to install.

    I started off with the 6.5" Kevlar speakers in my ceilings, which sound good. Then I made the mistake of going for the 8" Carbon Fiber ones. Now I want to swap out my 6.5". They sound much better than the 6.5, on the lower end but I did not install any 8" Kevlar (I have a pair in a box in my garage).

    The spouse insists on a bezel-less speaker, so the Kevlar 8" are a no go.

    These are matched up to Sonos Connect Amps, for streaming music listening.

    PROS: Sound great

    Solid construction

    Ultra slim bezel

    Magnetic grill attachment

    CONS: Expensive if you want to do lots of rooms (and you will after getting them)
    April 25, 2016
    Some other brands sell better speakers in this price range (alpha speakers). They don't mask themselves within 5 feet that well and the bass is so so. these have a tough time filling 10 x 20 foot open area with sound. The 8 inch speakers need 11 inches of cutout. That means you won't be installing different ones in the future without reinstalling lots of drywall. Only takes up to 14 gauge wire.
    July 24, 2017
    6 months ago
    Nice speakers at a nice price
    I give these speakers 5 stars, not because they are the best sounding speakers I have ever heard, they are not, but because they are an incredible value. They can certainly compete with some of the best speakers I have heard. Some reviewers state the the dog ear mounting brackets on these are fragile and break. I had no issues with that and I would say they most likely used a drill instead of a screwdriver. They dont need to be torqued down. Just hand tighten until it feels solid. I used these for a 7.4.4 Atmos install (I like subs) and couldnt be happier.
    February 28, 2017
    11 months ago
    A great value
    I decided to try these out instead of the usual Kevlar 6" units I have been putting into other rooms. These have a very nice frequency range with a better low end than the 6" units even without a box behind them.

    PROS: Price, sound
    September 13, 2016
    Best bang for your buck, easy to install, great clarity.
    December 17, 2017
    1 month ago
    Better than expected
    Installed these last month and was pleasantly surprised by the build quality and components. Needed some time for proper break in of woofer, but overall balanced sound.
    April 18, 2017
    9 months ago


    In Stock This item should ship tomorrow (1/17/2018) if ordered within 18 hours 30 minutes