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The Klipsch Flexus CORE 300 is a 5.1.2-channel soundbar powered by Onkyo, designed to deliver immersive, cinematic audio. It features built-in subwoofers for powerful bass and supports Dolby Atmos for a three-dimensional sound experience. As a core component of the Flexus system, it can be expanded with optional surrounds and a dedicated subwoofer. This soundbar is ideal for those seeking a dynamic and scalable home theater solution.
5.1.2-Channel Audio: Delivers a multi-dimensional soundstage with dedicated up-firing speakers for Dolby Atmos.
Onkyo-Powered Technology: Integrates Onkyo's expertise for precise and powerful audio processing.
Built-in Subwoofers: Provides deep, impactful bass without the need for an external subwoofer.
Klipsch Acoustic Performance: Features Klipsch's signature sound, known for its dynamic range and clarity.
Expandable Flexus System: Can be wirelessly paired with the Flexus SURR 100 surrounds and a Flexus SUB 100 subwoofer.
CalebRated
Reviewed on 06 May, 2026
I tried a prior Flexus Core system from the before times, and while I had good luck with the soundbar, the whole system performance just wasn't what I expected from Klitchch. The Flexus Core 300 is a loud and clear message that Klipsch still makes some of the most kick-ass audio gear that you can buy.
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