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The Sony HT-S400 is a 2.1-channel soundbar with a wireless subwoofer and 330 W of total power. S-Force PRO Front Surround and Dolby Digital widen the soundstage from the front of the room, and Voice Mode lifts dialogue for shows and news. It suits small to mid-size rooms and buyers who want a simple one-cable HDMI ARC setup without paying for a full surround system. Against rivals like the Yamaha SR-B20A and Bose TV Speaker, it adds a dedicated subwoofer and more low-end punch, but it skips Dolby Atmos and has only one HDMI port.
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Owners generally like the clear dialogue and the bass from the wireless subwoofer for the size and simplicity of the system. Common complaints center on the limited HDMI connectivity and the virtual surround not matching a real 5.1 setup.
The Sony HT-S400 is a compact 2.1-channel soundbar system with a wireless subwoofer. It is made to improve TV audio with clearer dialogue and fuller bass. S-Force PRO Front Surround and Dolby Digital create a wider soundstage from the front of the room.
The soundbar uses Sony's X-Balanced speaker design to keep voices clear. The wireless subwoofer has a 160 mm driver for deeper bass and needs no cable to the bar, but it still needs AC power. Surround sound is virtual, and the system has no rear speakers.
The bar connects to a TV by HDMI ARC for one-cable control and audio return. An optical cable is included for TVs without ARC, though the volume may then be controlled separately. Bluetooth streams music from phones, tablets, Chromebooks and laptops. The low-profile bar has a flat back for wall mounting. It can also pair wirelessly with compatible BRAVIA TVs. A remote and a front OLED display handle mode and volume changes.
