Sony HT-S400 2.1ch Soundbar with Wireless Subwoofer (Black)

The Sony HT-S400 is a compact 2.1-channel soundbar system designed to upgrade TV audio with clearer dialogue and fuller bass. Using S-Force PRO Front Surround and Dolby Digital, it creates a wider, room-filling soundstage from the front of the room, while the included wireless subwoofer adds deep low-end impact for movies, music, and gaming.

At a glance

• System type: 2.1-channel soundbar + wireless subwoofer
• Total power output: 330 W
• Virtual surround: S-Force PRO Front Surround
• Audio formats: Dolby Digital, Dolby Dual Mono, LPCM 2ch
• HDMI: 1 × HDMI ARC (one-cable TV connection)
• Optical input: Yes
• Bluetooth: v5.0 (music streaming from phones/tablets/laptops)
• Sound modes: Sound Field, Night Mode, Voice Mode
• Main bar size/weight: 35.5" × 2.63" × 3.5", ~5.3 lb
• Subwoofer size/weight: 7.63" × 15.25" × 15.75", ~16.1 lb
• What’s included: Remote, optical cable, AC cables, batteries, manuals

Key features

• Cinematic front surround: S-Force PRO processing virtually widens the sound beyond the bar for a more immersive experience. :contentReference[oaicite:1]{index=1}
• Clearer dialogue: 2.1ch layout with Sony’s X-Balanced speaker design keeps voices crisp and intelligible. :contentReference[oaicite:2]{index=2}
• Wireless subwoofer: 160 mm driver adds deeper bass without extra cables across the room. :contentReference[oaicite:3]{index=3}
• Simple operation: Compact remote and front OLED display make mode/volume changes easy. :contentReference[oaicite:4]{index=4}
• Flexible placement: Low-profile bar is wall-mountable with a flat back and can also pair wirelessly with compatible BRAVIA TVs to reduce clutter. :contentReference[oaicite:5]{index=5}

Compatibility and connection

Connect to most TVs using HDMI ARC for one-cable control and audio return, or use the included optical cable if ARC isn’t available. Bluetooth lets you stream music from phones, tablets, Chromebooks, or laptops. :contentReference[oaicite:6]{index=6}

Best use cases

• Home theaters and living rooms needing better dialogue and bass
• Classroom or media-room TV audio upgrades
• Gaming setups wanting larger sound impact
• Simple multi-use spaces where a full AVR system is overkill

Buyer notes

• No rear speakers: Surround is virtual (front-based). For true rear-channel surround, look at systems with add-on rears. :contentReference[oaicite:7]{index=7}
• ARC required for single-remote use: If the TV doesn’t support ARC, optical still works but volume may be separate. :contentReference[oaicite:8]{index=8}
• Sub placement: Wireless connection gives flexibility, but it still needs AC power. :contentReference[oaicite:9]{index=9}

Purchasing for schools and districts

Learning Headphones supports purchase orders, tax-exempt checkout, and volume pricing. If you’re upgrading classroom TVs or building media-room kits, our team can help confirm the right soundbar size and connection type for your displays.