HK STUDIO 9

The Harman Kardon Onyx Studio 9 is an elegant, premium portable Bluetooth home speaker designed to combine high-fidelity audio performance with luxury interior design aesthetics. Moving away from the distinct circular sphere layouts of older generations, the Studio 9 opts for a refined, understated oval design wrapped in premium, eco-friendly acoustic fabric made from recycled polyester yarn. It features a prominent integrated handle forged out of 90% recycled aluminum that seamlessly doubles as a rigid, stable floor stand.Acoustically, the speaker utilizes a multi-channel driver system pairing a massive 120 mm woofer and dual passive radiators with a three-tweeter layout (comprising a mono center channel and two side-firing units) to maximize stereo separation and disperse a sprawling, room-filling soundstage. Audio tuning is governed by Constant Sound Field tech alongside a continuous Automatic Self-Tuning feature that uses a built-in microphone to read room reflections and adjust internal EQ bands in real-time. Engineered for at-home mobility rather than rugged outdoor use, it does not carry an IP water or dust resistance rating. The device provides up to 8 hours of battery playback, debuts full Auracast multi-speaker pairing functionality, and integrates into the Harman Kardon One Mobile App to grant users manual access to a customizable 7-band graphic equalizer.