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    Monoprice Caliber 8in Fiber In-Wall Speakers 3-Way (pair)
    Product # 6816
    6.5in 8in
    In Stock This item should ship today (9/19/2018) if ordered within 4 hours 37 minutes

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      4099 4100 4101 4881
    Model 4099 4100 4101 4881
    Impedance 8 Ohms 8 Ohms 8 Ohms 8 Ohms
    Frequency Response 62 Hz ~ 20 kHz 62 Hz ~ 20 kHz 50 Hz ~ 20 kHz 60 Hz ~ 20 kHz
    Power Handling Capacity 50 Watts Nominal,
    100 Watts Maximum
    60 Watts Nominal,
    120 Watts Maximum
    80 Watts Nominal,
    160 Watts Maximum
    50 Watts Nominal,
    100 Watts Maximum
    Woofer 5.25" Kevlar® Woven Fiber Cone w/
    15.4 oz. Magnet & Rubber Surround
    6.5" Kevlar® Woven Fiber Cone w/
    16.5 oz. Magnet & Rubber Surround
    8" Kevlar® Woven Fiber Cone w/
    30 oz. Magnet & Rubber Surround
    2x 5.25" Kevlar® Woven Fiber Cones w/
    10 oz. Magnets & Rubber Surrounds
    Tweeter 1" Pivoting Titanium Silk
    Membrane Dome (25° Swivel)
    1" Pivoting Titanium Silk
    Membrane Dome (25° Swivel)
    1" Pivoting Titanium Silk
    Membrane Dome (25° Swivel)
    0.75" Titanium Silk
    Membrane Dome
    Sensitivity 88dB ±2dB (1.0m/2.83V) 88dB ±2dB (1.0m/2.83V) 89dB ±2dB (1.0m/2.83V) 87dB ±2dB (1.0m/2.83V)
    Crossover 1.8 kHz 1.8 kHz 1.9 kHz 3.8 kHz
    Fs 62.186 Hz 59.501 Hz 50.373 Hz 60.008 Hz
    Re 7.2 ohms 7.2 ohms 7.2 ohms 14.8 ohms
    Qts 0.581 0.556 0.470 0.674
    Vas 9.655 liters 14.572 liters 35.531 liters 9.509 liters
    Cms 810.203 µm/N 619.720 µm/N 509.221 µm/N 509.221 µm/N
    BL 55.546 T 65.459 T 79.557 T 36.676 T
    EBP 84.377 82.07 71.35 66.824
    Xmax 1.5mm 2.5mm 3mm 2mm
    SD 9.161 cm2 12.868 cm2 21.382 cm2 9.503 cm2
    Overall Dimensions 11.0" x 7.5" x 2.8"
    (280 x 190 x 71 mm)
    12.1" x 8.7" x 3.0"
    (306 x 220 x 76 mm)
    14.1" x 10.0" x 3.5"
    (358 x 254 x 89 mm)
    17.6" x 8.7" x 3.5"
    (448 x 221 x 89 mm)
    Cut-Out Dimensions 9.61" x 6.14" (244 x 156 mm) 10.67" x 7.28" (271 x 185 mm) 12.72" x 8.66" (323 x 220 mm) 16.30" x 7.32" (414 x 186 mm)
    Mounting Depth 2.83" (71mm) 2.99" (76mm) 3.54" (89mm) 3.07" (89mm)
    Weight 3.8 lbs. (1.7 kg) 4.5 lbs. (2.0 kg) 6.6 lbs. (3.0 kg) 6.6 lbs. (3.0 kg)

      6816 7606 7607 7604
    Model 6816 7606 7607 7604
    Impedance 8 Ohms 8 Ohms 8 Ohms 8 Ohms
    Frequency Response 50 Hz ~ 20 kHz 63 Hz ~ 20 kHz 56 Hz ~ 20 kHz 50 Hz ~ 20 kHz
    Power Handling Capacity 100 Watts Nominal,
    200 Watts Maximum
    60 Watts Nominal,
    120 Watts Maximum
    80 Watts Nominal,
    160 Watts Maximum
    80 Watts Nominal,
    160 Watts Maximum
    Woofer 8" Kevlar® Woven Fiber Cone w/
    30 oz. Magnet & Rubber Surround
    5.25" Kevlar® Woven Fiber Cone w/
    16.5 oz. Magnet & Rubber Surround
    6.5" Kevlar® Woven Fiber Cone w/
    16.5 oz. Magnet & Rubber Surround
    6.5" Kevlar® Woven Fiber Cone w/
    22 oz. Magnet & Rubber Surround
    Midrange Speaker 4" Kevlar® Woven Fiber Cone w/
    5.4 oz. Magnet & Rubber Surround
    2.5" Kevlar® Woven Fiber Cone w/
    3.6 oz. Magnet & Rubber Surround
    3.5" Kevlar® Woven Fiber Cone w/
    5.4 oz. Magnet & Rubber Surround
    5.25" Polypropylene+Mica Cone w/
    16.5 oz. Magnet & Rubber Surround
    Tweeter 1" Titanium Silk
    Membrane Dome
    0.75" Titanium Silk
    Membrane Dome
    0.75" Titanium Silk
    Membrane Dome
    0.75" Titanium Silk
    Membrane Dome
    Sensitivity 90dB ±2dB (1.0m/2.83V) 87dB ±2dB (1.0m/2.83V) 88dB ±2dB (1.0m/2.83V) 89dB ±2dB (1.0m/2.83V)
    Crossover 490 Hz, 4.8 kHz 540 Hz, 4.9 kHz 540 Hz, 4.9 kHz 540 Hz, 4.9 kHz
    Fs 51.131 Hz 63.039 Hz 55.909 Hz 49.959 Hz
    Re 7.2 ohms 7.2 ohms 7.2 ohms 5.6 ohms
    Qts 0.537 0.488 0.558 0.296
    Vas 27.001 liters 7.188 liters 16.803 liters 11.961 liters
    Cms 715.910 µm/N 675.094 µm/N 671.670 µm/N 478.142 µm/N
    BL 8.970 T 67.514 T 65.317 T 107.759 T
    EBP 78.60 106.665 78.194 155.635
    Xmax 3mm 2.5mm 2.5mm 3.5mm
    SD 21.382 cm2 8.659 cm2 13.273 cm2 34.636 cm2
    Overall Dimensions 14.1" x 10.0" x 3.9"
    (357 x 255 x 100 mm)
    11.3" x 7.9" x 2.8"
    (287 x 200 x 71 mm)
    12.1" x 8.7" x 3.2"
    (306 x 220 x 81 mm)
    14.2" x 8.3" x 3.5"
    (360 x 211 x 89 mm)
    Cut-Out Dimensions 12.76" x 8.74" (324 x 222 mm) 10.00" x 6.50" (254 x 165 mm) 10.67" x 7.28" (271 x 185 mm) 12.99" x 7.09" (330 x 180 mm)
    Mounting Depth 3.58" (91mm) 2.76" (70mm) 3.19" (81mm) 3.20" (81mm)
    Weight 7.82 lbs. (3.5 kg) 4.96 lbs. (2.2 kg) 5.4 lbs. (2.4 kg) 8.15 lbs. (3.7 kg)

    Start typing your question and we'll check if it was already asked and answered. Learn More
    Browse 21 questions Browse 21 questions and 45 answers
    How do these compare to the 6816? Do these sound better?
    Brian L on Jan 3, 2017
    Monoprice Caliber 8in Fiber In-Wall Speakers 3-Way (pair)
    Monoprice Caliber 8in Fiber In-Wall Speakers 3-Way (pair)
    Monoprice Alpha In-Wall Speakers 8in Carbon Fiber 2-way (pair)
    Monoprice Alpha In-Wall Speakers 8in Carbon Fiber 2-way (pair)
    BEST ANSWER: Thank you for your question. The differences between Kevlar and Carbon Fiber will be Kevlar will be lightweight and rigid. They will have great power handling, sound great and have a wide frequency response. Carbon Fiber speakers will also be lightweight and will have a better response and will be more durable. Both sound great, I feel you would be happy with either.

    Should you require additional assistance, please reach out to our technical support team with a detailed question via any of the methods available here:


    Our knowledgeable Technical Support staff would be more than happy to assist. Thank you
    I'm placing these on a wall where the other side is not finished (mechanical room) would you suggest framing a box around them for better sound? Insulation in the box?
    A shopper on Mar 18, 2017
    BEST ANSWER: Absolutely and the bigger the box the better. Should increase bass response.
    What would be a good box size for 6816? I don't want to put these in my walls and would like to build a couple of boxes. These will be use a front speaker in a surround system. I already have 4103 in the ceiling for the surround speakers, mounted in 1 cu.ft. boxes.
    A shopper on Jul 18, 2018
    BEST ANSWER: These are infinite baffle speakers, they are built specifically for the large air spaces found in wall cavities. They will produce their best sound in a wall, not in a sealed speaker box. Best you can do is Port your box, but it still won't produce the sound the way it's supposed to.
    What is the purpose of the switch on the front of the speaker? 0dB, -3dB, and -6dB?
    Fred A on Jun 1, 2018
    BEST ANSWER: Your amplifier may have a different driving impedance to match to your speakers impedance for maximum power transfer. But if the speakers and amp are mismatched in impedance, the sound may be clipped at high volume which is undesirable. A quick and easy way try to reduce this affect is to trim the mismatch impedance by reducing the gain. 0db has no gain where as -3db and -6db further reduce the gain driving the speakers. In short, if you hear weird distortion at high volume, then switch to -3db. If that doesn't work try -6db. If still not worked then reduce volume..
    overall depth of 5.25 speaker?
    A shopper on Aug 22, 2018
    BEST ANSWER: Click on the "Full Specs" part of the page to see this. They range from 2.8" to 3.5" depending on the model (1x or 2x speakers). They are all designed to fit in a 2x4 wall.
    How does the tweeter pivot, just bought these and wondering how to adjust?
    A shopper on Mar 4, 2018
    BEST ANSWER: This model does not have a pivoting tweeter. #6816
    Want to pair this Aria center channel (#6317) with the Caliber 8-in 3-way (#6816) as the LR speakers. This is mainly because the Caliber center channel (#4881) is too wide to fit between two studs. Is this the best way to go or should I use an extra #6816 as the center (seems like that should fit between studs)? I'm concerned with both the sound and looks being different on the Caliber vs. the Aria. The Calibers look to have a bigger frame around the grill while the Aria has a very narrow frame. Will they look and/or sound too different?
    Mohammad S on Feb 19, 2018
    Monoprice Caliber 8in Fiber In-Wall Speakers 3-Way (pair)
    Monoprice Caliber 8in Fiber In-Wall Speakers 3-Way (pair)
    Monoprice Aria In-Wall Speaker Center Channel Dual 5.25in 2-Way (single)
    Monoprice Aria In-Wall Speaker Center Channel Dual 5.25in 2-Way (single)
    BEST ANSWER: Once you paint the grills they should be close enough to not look out of place. the tweeters are also similar so your voicing will be pretty good as well. If you can spend an extra couple of bucks the Alpha series is a better sound and looking set of speakers. The center is only 13" wide so it will fit in your studs.
    Monoprice Alpha In-Wall Speaker Center Channel Dual 5.25in Carbon Fiber 2-way (single)
    Monoprice Alpha In-Wall Speaker Center Channel Dual 5.25in Carbon Fiber 2-way (single)
    Monoprice Alpha In-Wall Speakers 8in Carbon Fiber 2-way (pair)
    Monoprice Alpha In-Wall Speakers 8in Carbon Fiber 2-way (pair)
    Hi. What would I need to install these speakers on a concrete wall?
    A shopper on Sep 28, 2017
    BEST ANSWER: You'll need to build a wood frame, screw it to the concrete then attach the speaker to the frame. You'll need a masonry bit for the concrete.you could also attach drywall to the frame then cut out a hole using using the supplied template to get a proper fit for the speaker.
    Whats the mounting depth for the Caliber 8inch fiber 3way speaker?
    Dennis M on Nov 23, 2016
    BEST ANSWER: Thank you for your interest in this In-wall speaker. The product page state Cutout dimension is 91mm which is 3.58", perfect for most 2x4 stud walls.
    Is there any way to get a single one of these? I blew out one of the speakers while DJing and need to replace it. :(
    Jacob M on Nov 7, 2017
    BEST ANSWER: Thank you for your interest in these in-wall speakers. These 3-way speaker are only sold in pairs. As a former DJ, I'd get the pair as one will probably blow up again.
    Some Caliber series speakers have a thin mounting flange (#13682) and some a thicker mounting flange like this speaker. Are the photos of this speaker accurate or has the line been (or is being) updated to the newer, thinner frames?
    Thomas S on Sep 21, 2017
    BEST ANSWER: Thank you for your interest in this installed speaker. The Alpha series speakers like 13682 have the this bezel and magnetic grills. The Calibers, 6816, have the wider bezels and friction grills.
    Monoprice Alpha In-Wall Speakers 8in Carbon Fiber 2-way (pair)
    Monoprice Alpha In-Wall Speakers 8in Carbon Fiber 2-way (pair)
    I have these speakers installed and broke several of the plastic clips during installation. Is there a way to get replacement pieces for the broken ones?
    Elion W on Aug 1, 2017
    BEST ANSWER: Thanks for your interest in our in-wall speakers. I am sorry, at this time we do not have replacements. I will look in to it.
    4.8 / 5.0
    226 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Star
    Excellent Product - Get em While They're Hot!
    I hooked these 7 bad boys up to my Onkyo TX-NR808 and drove them with 130 watts rms per channel. I selected the Full Range setting on the receiver and gave them a spin. I was very impressed and I am hard to please. These speakers replaced high end Klipsch on stands surrounding the room. My wife absolutely hated them. She said they dominated the room (they are now in the man cave hooked up to another home theater system). She was right. So I installed these 3-ways in the ceiling (except for the center channel which was in the wall centered with the monitor). The work involve was well worth it. Now we have a great sounding system and a family room no longer cluttered with speakers. The construction was very solid. The mounting much better than other ceiling/wall speakers I have installed over the years. They even sounded great with the powered subs turned off! Do not hesitate to buy these speakers. Don't cheap out on the speaker wires. Get the 14 gauge monoprice sells. And get more than you think you need because it always takes more than you figured. Buy with confidence.

    PROS: Great Sound
    Well Constructed
    What else do you want?

    CONS: Couldn't breathe for 3 days after sucking in all the plaster dust.
    I guess I can't blame the speakers for that (wear a mask).
    August 2, 2010
    Great Sound,
    These speakers sound great once installed, but you do have to careful of a couple of things.

    First, when cutting the mounting hole you should make it at least 1/4" larger than the supplied cut template. The template is an exact fit, but as we all know it's hard to mount in an exact fit. Do you self a favor and cut the hole wider, the flanges are wide enough to cover it.

    Second, I strongly recommend that you tighten all the mounting screws to run the threads on all the mounting ears before you mount the speaker. I had three of the mounting ears get off track and bend the screws. Luckily I could use a common dry wall screw as a replacement, but it was a pain.

    PROS: Great sound

    CONS: Supplied cut template is too tight, mounting "ears" don't work well
    February 23, 2015
    Great speakers
    I finally installed them in our bonus room in-wall, with a lot of insulation. I used the same speaker for LCR and Surrounds. They are completely timbre matched because of this. Movies and music sound great and comparable to more expensive speakers. I suspect that the insulation is important.

    I was debating between the 7604 and this speaker and my experience in audio suggested that these would have the best range and performance. However, I was not sure and called tech support. They were not well informed and said both are good. So I purchased one pair of the 7604 as a test version and did an A/B comparison (without having them installed in-wall, i.e. free air) of the 7604 and the 6816. It was patently clear to my ears, and my wife's ears that the three way 6816 was a better speaker and more rounded and fuller. I took the hit on the return of the 7604 and used the 6816 for the five speakers and We were not disappointed.

    My system is 7.2 and I used two Monoprice Kevlar ceiling speakers in the rear and two Monoprice 10 inch passive in-wall woofers in front. I boxed the woofers and used ample amounts of fiberglass insulation.

    Bottom line the system if great for both movies and music. I have other 2-channel music speakers (box) that cost much more and the Monoprice gets fairly close I suspect that improved crossover components + a mirrored verison will help narrow the gap substantially).

    This is a great product.

    PROS: These are great speakers for the price and highly recommended.

    CONS: 1) There is a lack of a mirror-image option for Left and Right. This is absolutely a ridiculous omission by Monoprice.

    2) while these speakers are very good. I am disappointed that Monoprice does not offer an enhanced version with superior resistors, inductors and capacitors for the crossover circuit. Many customers, including myself will pay a reasonable premium for this option.
    February 20, 2015
    Amazed by these little guys
    For years I have used 8" JBL in-wall speakers for my primary and surround speakers in our family room... and RAVED about them. Of course, at the time they cost me $1,000 for the four speakers so they OUGHT to be good.

    Times have changed, we moved to a new (smaller) abode and I had to leave my in-wall speakers at our old house. Being ridiculously low on cash and spousal approval, I decided to give these speakers a try solely based on the reviews of others who claim to be audiofiles.

    Installation was straightforward, and I can't tell you how amazed I am at the sound of these little guys. Strong low-end, clear high end and a solid midrange. I would say that they are on-par with my $1,000 JBL's and I only paid $110 total (they used to be $55 per pair).

    I can't recommend these enough - even at $100 per pair they are a phenomenal deal.

    PROS: Very inexpensive
    Clear mounting instructions
    Dynamic range is excellent
    No more bang for the buck anywhere!

    CONS: Can not buy "spare" grills (for painting to match decor)
    July 19, 2011
    8 in walls best value
    I never write these. Ever. After reading some of the reviews I had to jump in. I am an audio nut. Been into it for years (multiple decades really). DO NOT HESITATE TO BUY THESE. Like most speakers they need time to break in. They replaced Bose sat/sub speakers and are so completely superior it's laughable. Been running them for 6 months and could not be happier.

    PROS: Easy Install. Ridiculously great value. Outstanding sound.

    CONS: None
    January 18, 2016
    Review of Installation only
    First off the installation is a learning curve. Read reviews from people it will save you butt. The template is not very accurate. In fact the instruction for the template is not good at all. I found that if I remove the center piece, small ring and then use the template that was right on. No where in the instructions did it say to remove the small ring. Second thing I highly recommend is to Screw the posts in and out before installing. This will work the threads and help drastically lower the chance of breaking a posts. Also don't over tighten the posts. They will break as they aren't the highest quality but do the job. Use a hand screw driver not a gun. The screws on my unit both where bent up a little upon arrival. It was a pain in the A$$ to get these to sit right. The removal tool is no better than a paper clip trying to get them out.

    PROS: Not bad installation as long as you prep

    CONS: Speaker grill didn't seem very well cut and thus I had a pain getting them to sit right.
    March 23, 2016
    First, these speakers are amazing. For the price there's nothing like them. I bought six of them for a 5.1 setup in my large living room (24x32 with ceilings vaulting to 16'). It's a huge space and I wanted hidden speakers. Thought I would try these as I could throw them away if I didn't like them and only be out a little over $200. Added the monoprice 12" sub and the system rocks.

    Install is easy with one exception. When screwing the feet/clamps down they have a tendency to jump out of their tracks and jam. This requires removing the speaker to get them resettled. There's not easy way around it and we ended scrapping one of the speakers all together since we couldn't get it to work at all (we didn't try toooo hard since we had a spare anyway).

    The sound of these guys is quite good. Not much bass, but inwalls don't do much with that anyway. And after adding the sub, it doesn't make a bit of difference. They play quite loud before suddenly hitting a wall where they get hard sounding instead of louder. However, I have put them in a very big space and that volume limit is above where I would ever play them anyway.

    They are a bit hard to drive. My cheapy one with these speakers and another one with 20K worth of high end gear. After installing these speakers with a new, inexpensive Onkyo amp I was very pleased but got a sense that the amp wasn't doing too well driving them. Just for fun I plugged in a B&K Reference 200.7 amp (200 watts x 7 and $2800) to see what that did. They were MUCH better. Fuller, much more controlled, more impact. But, after putting that amp in the downstairs theater and running the Audessey acoustic callibration in the Onkyo I was still very pleased. Especially since I spent more on cabling in the other theater than I did for speakers/sub/receiver/blu-ray in this one.

    One more thing that's worth adding: having five identical speakers creates a fantastically seamless sound. The sound from the center perfectly matches the sides even with the center mounted on its side and under the 50" tv. Front to back sounds seamless too and gives the sense of the sound just being part of the movie instead of being from a bunch of individual speakers. I believe that's the whole point.

    When I put on music or movies to test these speakers, I find I just watch/listen to way more than I was intending. That's the whole point isn't it? To get lost in the experience and not pay any attention to "how does this sound?" I think it is.

    PROS: Very good sound.
    Easy to install.
    Heavily built/well made

    CONS: Mounting hardware can "jump the track" and get stuck before tight.
    Hard to drive. Quality amplification can make a big difference.
    December 5, 2012
    These HAVE to be made by a big name MFG...
    Installed a complete 7 speaker surround system with Monoprice in-walls, used THESE for the Front L/R. Wall cavity was standard 16 inch on-center 2x4 studs, in front of cement block wall with fiberglass insulation throughout. I was floored by the sound quality when I first got to listen to them, immediately I thought these MUST be made by one of the top manufacturers of in-wall speakers, they just sounded so good, even without a subwoofer, and only an 8" woofer, the bass was impressive. They sound crystal clear at very loud movie levels, even with the wide dynamic range of modern soundtracks, they never sound like they're being overdriven by a 110 watt per channel receiver. I consider myself a harsh critic of sound quality, and these really delivered, even flat out of the gate I was impressed. It may have to do with the wall cavity or the drywall, or another factor other than the speaker, but the fact that they CAN deliver the performance they do...for the price they are...BUY A SET...you can't go wrong!

    PROS: Sound Quality
    Ease of Installation
    Quality of construction
    Great features for an in-wall

    CONS: The finicky mounting system
    July 19, 2013
    Quite happy with these
    I work in the movie business and care quite a bit about the sound of our home audio system. I was hesitant to buy such inexpensive speakers but after reading the positive reviews here I thought I'd give them a try.

    First, very easy to install. The templates are perfect and with a couple of the right tools they drop right in. Mine secured nicely to our drywall.

    Importantly: they sound great. In a previous house we had Bowers & Wilkins speakers which are pretty high-end speakers and much more expensive. I was prepared for a significant downgrade with these but I would say the sound is fairly comparable. Paired with a great amp and good quality sub it has a solid sound.

    Overall, excellent quality and incredible value. I'd buy these again.

    PROS: Great quality.

    Excellent value.

    Easy to install with provided templates.

    They look nice installed.

    CONS: None.
    January 31, 2015
    Great Speakers - MonoPrice Delivers Again!
    I helped a friend design his 7.1 home theater. He didn't want to spend a lot, so based off my prior experiences with monoprice products, I recommended these speakers. He is not an audiophile, so I was fairly sure these would meet his needs as well as budget. I was so impressed with the sound and build quality of these speakers that I purchased my 9.1 system from monoprice. (Actually I got my sub from somewhere else). I painted the speakers to match the color of the walls and my wife loves the look and sound from them. A note on painting the grills, be careful not to clog the holes in the grill with paint. I used a wagner power painter to spray the speakers. I unhooked the paint sprayer and used the air hose to blow the paint out of the grill holes to keep it from clogging up. If you do this the grills will look great.

    They were easy to install, the cutout guides were accurate. I packed the wall with insulation around the speaker to help enclose the space in the wall.

    Overall, I would highly recommend these speakers, as they are very good speakers, possibly one of the best values out there. Sure you can get better speakers if you are willing to spend a lot more. However, I consider myself borderline audiophile and I am very pleased with my purchase and have recommended these speakers to several people already.

    PROS: 1. Sound great
    2. Easy to install
    3. Paintable to match the wall color

    CONS: None.
    February 23, 2011