Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Product # 13683
    Alpha Ceiling Speakers 8-Inch Carbon Fiber 2-way (pair)
    Product # 13683
    Size : 8in
    4in 6.5in 8in
    In Stock This item should ship today (4/25/2017) if ordered within 4 hours 35 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!

    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 14 questions Browse 14 questions and 18 answers
    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.
    Are backboxes available for new construction?
    John M on Jan 4, 2017
    Can you aim the tweeters in this speaker like the Caliber series?
    Christopher G on Dec 27, 2016
    BEST ANSWER: These speakers sound incredible! Yes you can aim the tweeters with these speakers. I've installed over 20 plus pairs of these for my customers.
    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)
    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.
    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.
    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 , 8" Ceiling Speaker
    ABS Back Enclosure (Pair) for PID 4104 , 8" Ceiling Speaker
    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.
    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.
    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.
    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: You should not need to remove the speaker cover when you're installing the back can. That being said, there is also no reason why you should leave it on either.
    The cans came to me with a small amount of damping material. Feel free to add more, but I think you'd find you didn't need to.
    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.
    4.7 / 5.0
    20 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
    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
    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
    6 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
    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
    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
    1 month ago
    I was overall very impressed with the speakers, especially for the price. The magnetic grills very flush against the ceiling and provide a really finished look. It also makes it easy to remove them and adjust the Tweeter if need be. Bass response was very full and I would install these speakers again with confidence.
    December 23, 2016
    4 months ago
    Wasn't sure what I would be getting...
    We bought a house that had in-ceiling speakers that had been removed, so we were blessed with having 4 gaping almost 11" holes in our ceiling covered with crummy looking plastic circles. These were one of only three speakers I could find that could repurpose those holes without modification, the other two being speakers costing $500-$1,000... EACH. So the wife said yes to these, and I spent a day putting them up for a whole $180 instead...

    They need some breaking in. The first few days they sound tight and a little too crisp. Like any speaker, really, but I've been running wide range music and movies on them during the day to put some hours on them and get them ready for a more critical listen and I can already hear them warming up. I'm hesitant to use the adjustment on the speaker itself as others have mentioned it having little to no impact so I'd rather adjust using my room acoustics sound data. Part of the issue I ran into is that these were tying to a center channel speaker that is vastly undersized compared to these, but the new center will be here in a few days and that should balance the room better. They put out a lot of sound, and have excellent bottom end reach. You still very much need a subwoofer for movies, but for basic listening they have a great range.

    The quality is good, the mounting feet are a bit sticky and the screws are a hefty amount of turning from being fully applied, which is tough to do while supporting a six pound speaker 10 feet off the ground with one hand.

    I'm very glad I went with these!
    February 28, 2017
    2 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
    2 months ago

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