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Sony HT-S400 Soundbar Wireless Subwoofer System Unveiled

If you are looking for something basic to improve TV sound, the Sony HT-S400 $299 soundbar/subwoofer system might be right for you.

Sony HT-S400 Soundbar with Wireless Subwoofer

Sony has offered up some high-end soundbar and wireless speaker options, but there is also a large customer base looking for affordable soundbar systems for improving TV sound. If that is your desire, then the Sony HT-S400 might be a soundbar system for you.

There is nothing fancy like Sony 360 Reality Audio, Dolby Atmos/DTS:X, or 4K/UHD HDR pass-through, but for less than $300, there are some practical features that might just be the ticket.

Product Design

The Sony HT-S400 consists of a 35.5 inch wide 2 channel soundbar combined with a compact wireless ported subwoofer with a 6.3-inch driver. 

Sony HT-S400 Soundbar with Wireless Subwoofer Front

Speaker Complement

Sony incorporates two X-balanced (rectangular) speakers within the sound bar unit. The rectangular shape increases effective diaphragm size and reduces the amount of in-out motion needed to produce sound. 

Sony Regular Speakers vs. X-Balanced Speakers

Power Output

Total System: 330W distributed as follows:

Soundbar: 100W + 100W per channel = 200W total

Subwoofer: 130W; 200W + 130W = 330W 

Note: No power rating reference point is provided

Audio Format Support

Sony HT-S400 Soundbar with Wireless Subwoofer Sound Waves

Traditional Formats: Dolby Digital, Dolby Dual Mono, LCPM 2ch

S-Force PRO Virtual Front Surround: This feature creates an immersive soundfield from 2.1 channels utilizing the 2 speakers integrated into the soundbar. 

Additional Sound Settings: Night Mode (maintains an even frequency range at low volume), Voice Mode (for when you can hear the dialog over all the other sound effects), Sound Field (provides a surround sound listening experience from two-channel stereo sources). 

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The HT-S400 can be controlled via the provided wireless remote or control buttons on the soundbar. 

Sony HT-S400 Soundbar Remote Control Buttons

Tip: When connected to select Sony Bravia TVs via HDMI, Soundbar settings automatically appear onscreen in the TV’s Quick Settings menu.


Sony HT-S400 Soundbar Rear Connections

HDMI-ARC: This transfers audio directly from the TV to the soundbar using an HDMI cable. The TV has to have an HDMI connection labeled HDMI-ARC or eARC for this to work.

Digital Optical: If your TV doesn’t have an HDMI-ARC connection, this is the next best option to get audio from your TV to the soundbar. 

Tip: The HT-S400 does not provide an analog audio connection option. 

Bluetooth (ver 5.0): Receiver only. This means that you can play music from smartphones, tablets, and laptops/PCs on the HT-S400 but you can’t use the soundbar to send sound to Bluetooth headsets or external Bluetooth speakers.

Tip: The HT-S400 can connect to select Sony TVs wirelessly via Bluetooth. This means that an HDMI-ARC or Digital Optical connection may not always be required. 

USB: Firmware Update Only

What’s In The Box

  • Soundbar and Subwoofer
  • Optical Cable (HDMI cable not included)
  • Wireless Remote Control with batteries
  • AC power cable
  • Quick Setup Guide
  • Instruction Manual

Tip: The HT-S400 can be wall mounted if desired, but mounting hardware is not included. 

Sony HT-S400 Soundbar Sound Waves

Pricing and Availability

The Sony HT-S400 is available for pre-order for $299.99 at Amazon, direct from or through authorized Sony dealers. The expected release date is set for April 15th, 2022.

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