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    SKU: OSD-ACE650

    OSD ACE6506.5" Kevlar® Woofer Trimless Thin Bezel 2-Way In-Ceiling Speaker Pair

    Purchase 6.5" Kevlar® Woofer Trimless Thin Bezel 2-Way In-Ceiling Speaker Pair - ACE650
    • Outdoor Speaker Depot SKU: OSD-ACE650 trimless-6-5-inch-in-ceiling-speakers-ace650mk
    • In Stock


      Compare at: $173.99
      You Save: $57.71

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    The ACE650 incorporates premium technologies such as Kevlar® woofers, pivoting titanium 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.

    Step Up Features You'll Love!
    • Deep, rich bass and exceptional top-end frequency response
    • Sturdy Kevlar® cone woofer handles high volume levels
    • Pivoting aluminum dome tweeter
    • Spray paintable grilles to match any decor
    Audiophiles Love Kevlar® Woofers
    Kevlar® is a super strong material known for its ability to produce powerful but very smooth bass tones. Kevlar® woofer cones retain their shape even at very high energy levels, which means you can crank up the volume and experience spine-tingling sound without distortion or coloration.

    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.

    How Does this Speaker Mount in the Ceiling?
    Customers often ask us if they need special installation mounting brackets on their OSD ceiling speakers. The answer is no and here’s why. All our in-ceiling speakers feature a dog leg (L-shaped) mounting system that is part of the frame. Before you install the speakers, remove the grille and you’ll see several the mounting screws near the front frame. These screws need to be loosened to activate the dog leg clamps. Use a screwdriver to loosen (turn to the left) these screws and the clamp will come loose. When the speaker is in position in the ceiling, tighten (turn to the right) the screw and the speaker will be secured to the ceiling.

    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 a wider frequency response, and its shelf life is closer to 25 years compared to the foam at 12 to 15 years.

    Testing the Sound Quality of In-Ceiling Speakers
    Many customers like to test the sound quality of their new OSD Audio in-ceiling speakers before they install them. Keep in mind, however, that these flush-mount speakers are designed to be used in the wall or ceiling. Uninstalled in-wall/in-ceiling speakers will sound weak and tinny because without the proper enclosure (in this case your house wall) the speaker can’t produce the sound pressure level it needs. If you want to try them out, we recommend mounting the in-ceiling speakers into a box of about 3 cubic ft. or larger; or simply mount them in the ceiling and then listen. This will give you an accurate measure of the sound quality.

    For a retrofit installation, no construction bracket is needed.

    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: 6.5" Kevlar® Trimless Ceiling Speakers
    • Woofer: 6.5" Kevlar® Cone
    • Tweeter: 1" Pivoting Titanium Dome
    • Frequency Response: 45Hz - 20kHz
    • Power Handling: 90W
    • Sensitivity: 89 dB
    • Impedance: 8 Ohms
    • Spray Paintable Magnetic Grille Included
    • Inputs: Gold-plated 5-way Binding Posts
    • Install-friendly Dog Ear Installation Brackets
    • Diameter & Depth: 8.86" x 3.54"
    • Cutout Diameter: 7.80"
    • Sold As: Pair
    • Warranty: 10 Years
    13 Questions asked
    Have a Questions?

    What's on your mind?

    Pat • 12/17/2019, 2:17:43 PM Hi, Looking to install in new construction and you have 3 6.5" brackets available for this size - will any work with this speaker?
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Pat, You would want to measure the hole in your new construction brackets and compare it to the cutout size of the ACE650 speakers. If the cutout size is slightly smaller than the hole in your brackets, but not too much smaller, then it should work.
    Shonn • 12/17/2019, 2:17:43 PM Are these okay for an Atmos install or should I select a speaker that states rated for Atmos?
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Shonn: These will work for Dolby Atmos both the Front ATMOS and Rear Atmos speakers, but we typically recommend using the ACE670 Angled LCR speakers for Dolby Atmos. They allow more flexibility for speaker placement due to their 15-degree dispersion (plus another 5 degrees from the pivoting Tweeter). The ACE670 LCR speaker is ideal for Surround/Effects speakers and the ACE870 work best for the Front Stage LCR. The ACE650 must be mounted almost directly overhead and limited to the 5 degrees of the Tweeter. The key to any home Theater system is the Tweeter which on all of the speakers needs to point directly point at your optimum viewing/listening area. Check out any AV Receiver surround system diagrams they all feature speakers on the same plane. Most of these companies do not offer the and in-ceiling option. TL/5194
    Dang Nguyen • 02/23/2021, 2:55:46 AM Could you please confirm that the cutout diameter for the OSD-ACE650 speakers is actually 8"? Thanks.
    Customer Service • 02/23/2021, 12:09:29 PM
    Hi Dang: This frame is used for a number of ACE speakers all with a cutout of 8". The BK-NC6A (8.3") is recommended New Construction Bracket. TimL/2-23