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    Home » Klipsch FLEXUS CORE 300 Soundbar Speakers User Manual
    Bowers And Wilkins

    Klipsch FLEXUS CORE 300 Soundbar Speakers User Manual

    By Gabriel SmithNovember 19, 2025Updated:November 19, 2025No Comments5 Mins Read
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    Klipsch-Logo

    Klipsch FLEXUS CORE 300 Soundbar Speakers

    Klipsch-FLEXUS-CORE-300-Soundbar-Speakers-Product

    Features

    Sound Bar with Dirac Room Correction

    The Klipsch Flexus Core 300 powered by Onkyo is the first-ever sound bar with Dirac Live auto-room correction to create the perfect sound landscape for your space by correcting anomalies in the room to create the best possible acoustic experience. After a quick scan of your room using the Klipsch Connect Plus app, the Core 300 is ready to deliver lifelike audio
    Unlike any other sound bar

    Legendary American Sound

    Klipsch has been making premium loudspeakers for the better part of a century. We pack decades of acoustic know-how into every product. The Klipsch Flexus Sound System is a partnership of our iconic American audio muscle with the technical precision of Japanese engineering from Onkyo. This strategic partnership fortifies our commitment to delivering unparalleled sound experiences.

    Powered by  Japanese Precision Technology

    We’ve teamed up with Onkyo, combining their decades of proven manufacturing and tech prowess with our classic Klipsch acoustics, to ensure your home entertainment system is as epic in audio quality as it is in reliability. This collaboration with Onkyo infuses hundreds of years of expertise, innovation, and extensive testing protocols. The integration of Onkyo technology into the Flexus Sound System represents a deliberate stride toward perfecting every aspect of sound reproduction within our sound bars.

    Dolby Atmos Advanced Sound Experience

    The Flexus Core 300 was built for processing the newest movies, shows, and games featuring Dolby Atmos technology in two 2.25” built-in elevation speakers and two (2.5”) side-firing speakers. Dolby’s immersive audio formatting enhances your experience by placing sounds precisely around and above you, creating a realistic, multidimensional audio environment.

    Connect Plus App to Customize 

    Streamline setup and control of Klipsch products with this user-friendly mobile app featuring controls for custom audio settings, managing multiple devices, and accessing firmware updates.

    Network Music Streaming

    The Flexus Core 300 allows you to stream all your favorite music in high-resolution (via network connection) for the most impactful and immersive experience through apps such AirPlaylay, Google Cast, Spotify, Tidal Connect, Qplay, and Bluetooth.

    DTS: X Decoding On board

    The Core 300 provides advanced DTS: :X Decoding, which allows the soundbar to decode all major audio formats via HDMI input for seamless playback of DTS: X-encoded movies and music.

    Specification

    SPEAKER SYSTEM5.1.2 Dolby Atmos Soundbar
    MAX ACOUSTIC OUTPUT106dB
    FRONT FIRING DRIVERS4 x 2.25” Drivers
    1 x .75” Horn-Loaded Tweeter
    UPFIRING DRIVERS2 x 4” High-Output Woofers
    2 x 2.25” Discrete Full-Range Drivers
    SIDE-FIRING DRIVERS2 x 2.25” Drivers
    ENCLOSURE TYPESealed – Plastic, Metal
    FREQUENCY RESPONSE43Hz-20kHz
    INPUTSHDMI 2.1 Passthrough, HDMI eARC • Bluetooth • USB-C • Digital Optical
    OUTPUTSHDMI Out, Subwoofer (RCA) Output
    DIMENSIONS3 1/16” (7.8cm) H x 54” (137.2cm) W x 4 15/16” (12.6cm) D
    FINISHEbony Vinyl
    WEIGHT18.7lbs (8.5kgs)
    INCLUDED ACCESSORIES(1) BLE Backlit Remote Control
    (1) 2.0m Power Cord (Region Specific)
    (1)1.5m HDMI Cable
    (2)AAA Batteries
    (1) User Manual
    MOUNTING OPTIONS 1/4” x 20 Threaded Insert, optional slim-depth wall bracket (sold separately)
    USB INPUT(1) USB Type-A Connection

    For System Updates and playback of MP3 files.

    MODEL NAMESKUREGIONUPCEAN
    FLEXUS CORE 3001072083NA7438780666920743878066692
    FLEXUS CORE 3001072084EUA7438780667080743878066708
    FLEXUS CORE 3001072085CCC7438780667150743878066715

    Customer Service

    • Website: Klipsch.com
    • Ph:  1-800-554-7724

    FAQs

    Q: What is the FLEXUS CORE 300 designed for?

    The FLEXUS CORE 300 is a tiny, high-performance soundbar that is perfect for small to medium-sized spaces. It provides powerful bass, crisp conversation, and immersive audio for TVs, streaming devices, and music players.

    Q: Can I use the soundbar wirelessly?

    Indeed. You can play music wirelessly with the FLEXUS CORE 300 thanks to Bluetooth streaming from smartphones, tablets, and other compatible devices.

    Q: How do I adjust volume, bass, and treble?

    Use the soundbar’s touch-sensitive buttons or the remote control that comes with it. Certain versions might provide sophisticated audio customisation with the Klipsch app.

    Q: Can I connect a subwoofer or additional speakers?

    For improved bass, the FLEXUS CORE 300 is compatible with Klipsch wireless subwoofer integration. Depending on the system’s wireless expansion capability, more rear speakers could be attached.

    Q: How do I reset the soundbar to factory settings?

    For ten seconds, simultaneously press and hold the input and power buttons until the LED flashes, signifying a successful reset.

    Q: How do I update the firmware?

    Firmware updates, if available, are delivered through the Klipsch app. Ensure the soundbar is connected to Wi-Fi or Bluetooth and follow the prompts in the app.

    Q: Can I use the soundbar for music streaming?

    Indeed. Play music from PCs, tablets, smartphones, and other audio devices via Bluetooth or compatible cable inputs.

    Q: How do I clean and maintain the soundbar?

    Wipe the speaker grille and cabinet with a gentle, dry cloth. Steer clear of liquids, solvents, and abrasive materials that might harm the speakers or finish.

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    Gabriel Smith

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