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    SKU: ACE870

    OSD ACE8708" Angled Trimless LCR In-Ceiling Speaker, 1" Pivoting Tweeter Dolby Atmos Ready (Single)

    Purchase ACE870 8" Angled Trimless LCR In Ceiling Speaker, 1" Pivoting Tweeter Dolby Atmos® Ready, Single
    • Outdoor Speaker Depot SKU: ACE870 trimless-ceiling-speaker-ace950
    • In Stock


      Compare at: $230.99
      You Save: $76.86

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    In addition to crisp, detailed mid and high frequencies, this single in-ceiling speaker kicks out impressive bass due in part to the 8” carbon fiber composite woofer and heavy-duty and efficient magnet structure that focuses energy within the voice coil gap. Other Audiophile features designed into the ACE870 include front-mounted contour switch as well as butyl rubber surround that gives the speaker more excursion capability for deeper bass and wider frequency response. The ACE870 installs easily into ceilings with four easy-to-lock-in dog-eared brackets and includes a cut-out mounting template.

    Why Go Trimless?

    It's really a matter of aesthetic preference. These flush-mounted speakers are hardly noticeable; that is until they're playing. Our Architectural Ceiling Element (ACE) Trimless speakers do not include the 3/4-inch trim you typically see around in-wall and ceiling speakers. The micro flange grilles are attached by extremely powerful magnets that stay put for quick and easy installation. Adds less visual impact on your architectural audio installation.

    What are the Benefits of an Angled In-Ceiling Speaker?

    The angled speaker is a real problem solver because not every space is ideal for custom home theater sound applications. The angled in-ceiling speaker features a 15° angle for the mid-bass driver plus a pivoting tweeter for placement flexibility. This speaker can be part of a three-piece set to handle the front stage of the surround system when both on-wall and in-wall are not a favorable option. The angled design allows the ideal placement in the ceiling closer to the wall just above the monitor. This creates a more realistic sound image when compared to normal in-ceiling speakers that are mounted closer to directly above the viewing area. Standard in-ceiling speakers are generally placed at least three feet from the wall to avoid reflective sound. The angle speaker can be placed within a foot of the wall

    What Type of Speaker Wire and What Gauge?

    Wiring is not included with in-ceiling speakers so you will have to purchase some. We recommend our OSD Audio CL3/FT4 cable that is UL (fire) rated for in-wall and outdoor speaker installs. This type of cable includes a heavy-duty outer jacket approved for in-wall/in-ceiling installation. The high-quality plastic jacket is also very flexible so it's easy to run the wires inside the wall. As for the gauge, for runs up to 100 feet for background music, 16-gauge will be fine. If the run is approaching or exceeding 100 feet, we suggest 14-gauge wire.

    What Is Butyl Rubber Surround?

    With almost double the shelf life of foam, butyl rubber has been the choice of speaker designers looking to optimize the sound based upon materials that go together. The Surround is just one of the integral parts of the speaker's motor structure. Butyl Rubber gives the speaker more excursion capability featuring a deeper bass with wider frequency response, and its shelf life is closer to 25 years compared to the foam at 12 to 15 years.
    Warning: California's Proposition 65


    This product can expose you to chemicals, including vinyl chloride, which is known to the State of California to cause cancer. For more information, go to

    • Speaker Type: 8" Angled LCR 2-Way Trimless Ceiling Speaker
    • Woofer: 8" Carbon Fiber Composite Cone
    • Tweeter: 1" Pivoting Titanium Dome
    • Frequency Response: 35Hz- 20kH
    • Power Handling: 175W
    • Sensitivity: 88 dB 1w/1m
    • Impedance: 8 Ohms
    • Dolby Atmos® - Ready for True 3D Surround Sound
    • Includes Front-Mounted Contour Switch
    • Angled Design Allows Ideal Placement Closer to the Wall
    • Spray Paintable Magnetic Grille Included
    • Inputs: Gold-plated 5-way Binding Posts
    • Install-friendly Dog Ear Installation Brackets
    • Diameter & Depth: 11.5" x 5.37"
    • Cutout Diameter: 9.87"
    • Sold As: Single
    • Warranty: 10 Years
    15 Questions asked
    Have a Questions?

    What's on your mind?

    Craig • 12/17/2019, 2:17:43 PM Hello. I have a 7.2 system mapped out. I am not sure what exactly is being said on one of the q&a Would you not suggest using 7 of these speakers? I should be looking at these for mains and a different model for center and surrounds? Thanks
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Craig: These speakers were created as Front Stage LCR speakers Left, Center and right. But they also work very well as both surround speakers and effects (like ATMOS or DTS:X). The key to any home theater system is the placement of the speakers so you can aim all the tweeters directly to the optimum viewing and listening area. We would recommend using the ACE870 for your front speakers and the ACE 670 for your Surrounds and Effects speakers. The question I think you were referring to was regarding an older speaker the ICE 870 and ICE 850 TL/4253
    Idilio Gonzalez • 12/17/2019, 2:17:43 PM Can these be ceiling mounted on a outdoor terrace? I know you have an outdoor line of speakers, but there seem to be more options and maybe even quality on those that are not outdoor rated by your website.
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Idilio: These are an excellent choice, you can mount these in your application but you want to take some precautions where you might want to weatherize it your self including putting a bead of silicon on the back of the mounting flange and maybe covering some of the exposed metal components on the back side around the input terminals and crossover parts. This is a great speaker... TL/4294
    Don • 12/17/2019, 2:17:43 PM I have a Marantz sr6011 9.1 atmos enabled receiver, Klipsch Reference Premiere speakers including one set of Klipsch RP 140-sa Dolby enabled speakers. I would still like to add ceiling dolby atmos alon gwith my Dolby enabled speakers. Considering I have a have a high end system, do you feel these speakers will complement the system I already have. The price is certainly right. Just want to make sure they will complement my system.
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Don These would be perfect match with your Reference series speakers. Both feature metal dome tweeters. The ACE are 92 dB sensitivity and KLIPSCH are at 97dB. So you would haved to raise the volume levels up on the ACE speakers. You could get away with the ACE670 if you wanted to save additional dollars. Most of the up firing Dolby Atmos speakers are 3.5" full range drivers. Good choice TL/4571
    lee edger • 12/17/2019, 2:17:43 PM can i use use osd ace870 for all my in ceiling speakers meaning L/R center and surrounds
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Lee: Sure you can, the front stage is most critical so the Left, Center and Right (LCR). You can look to the ACE670 for the Surround and Effects speakers. You definitely will want to look for at least a basic DOLBY ATMOS setup. ACE870 for the LCR, ACE670 for the Surrounds and a pair of ACE670 for the Height/ATMOS. Look for a Receiver that does both ATMOS and DTS:X. The ATMOS setup will work for both. You can easily find a receiver for $400 and up for a 7.2. Also think about utilizing two subs for the optimum coverage. The ATMOS system would be a 5.2.2 system. 9.2 Receivers would add a second pair of Height speakers for a 5.2.4 system. Your surrounds would be off to the left and right of the optimum seating location with front height speakers between the Front stage and seating location and the second pair behind the seating area. There is also a 7.2.2 option as well with the 9.2 which starts at $1300 plus and the 11.2 another $1000 above that. Let us know if we can custom design a system for you. TL/4804
    Brian • 12/17/2019, 2:17:43 PM What's magnet size?
    Customer Service • 12/17/2019, 2:17:43 PM
    HI Brian: The first time somebody asked me a question about the Magnet size of a speaker since my Car Audio days over 15 years ago. I asked the factory, and they responded with dimensions 4" outer diameter by .69" depth. We typically referred to the magnet size by weight. I think the magnet is 20 Ounce. TL/5231