US
Sony

Sony HT-S400 Soundbar

  • Soundbar
  • 330 watts
  • Sony
  • Wireless
4.3/ 5 on Amazon2,200Amazon ratings3.8ProductDome score
  • More reviewed than 94%
High confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forBuy if you want a soundbar and wireless subwoofer combo to improve TV audio and bass.

A 2.1 channel soundbar and subwoofer pairing with wireless connectivity, aimed at boosting TV audio and bass over a simple TV speaker setup.

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ProductDome scorecard

How it ranks among the 63 soundbars we track

3.8/ 5ProductDome scoreHigh confidence
Owner satisfaction · 56% of scorecategory median 4.4★4.3

4.3★ across 2,200 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 181 ratings4.2

2,200 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score0.0

Modest tracked demand last month.

Data quality · 11% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 63 soundbars we track - how the scorecard works · full soundbars data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

Bass comes from a separate wireless subwoofer in Sony's HT-S400, a 2.1 channel soundbar system rated at 330 watts total, finished in black with wall-mount support for the bar.

Pairing a soundbar with a dedicated subwoofer, the HT-S400 targets buyers who want a step up in bass response from a TV's built-in speakers without moving to a full multi-channel surround system. The wireless link between bar and sub avoids running a cable between them.

  • 2.1 channel soundbar with wireless subwoofer
  • 330W power
  • Wall mount compatible
  • 16.1 lb, black

Who it's for

This suits anyone upgrading TV audio for movies and general viewing who wants added bass without installing rear or height speakers. It's not built for home theater setups wanting discrete surround channels beyond front and low frequency.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Wireless subwoofer for added bass
  • 330W combined output
  • Wall mountable soundbar
What to check first
  • 2.1 channel only, no dedicated surround or rear channels
  • No HDMI or optical input listed in specs

Performance notes

The 330 watt total output splits across the 2.1 configuration, with the wireless subwoofer handling low frequency response separately from the bar's stereo channels. Wireless connectivity links the two pieces, and the bar supports wall mounting for a cleaner setup under a TV.

Specifications

BrandSony
ModelHT-S400
Dimensions & fit
Weight16.1 pounds
Dimensions13.4 × 38 × 9.6 inches
Power & efficiency
Power330 watts
Construction & materials
ColorBlack
Compatibility & installation
ConnectivityWireless
MountingWall Mount
Other details
Brand TechSony
Speaker TypeSoundbar, Subwoofer
Channels2.1

How it compares

This product against the closest alternatives we track in soundbars.

ProductAmazon ratingRatingsProductDome score
Sony HT-S400 SoundbarThis product4.3 / 52,2003.8 / 5
Bose 732522-5110 SoundbarBose4.5 / 518,2004.0 / 5
Puriom SD03 SoundbarPuriom4.1 / 55293.8 / 5
Yamaha SR-C20ABL SoundbarYamaha4.4 / 51,8003.8 / 5
JBL JBL Bar 500 SoundbarJBL4.5 / 57353.7 / 5
Frequently asked

Questions about the Sony HT-S400

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

Does the Sony HT-S400 include a subwoofer?

Yes, it's a 2.1 channel system with a wireless subwoofer paired to the soundbar.

Can the HT-S400 be wall mounted?

Yes, the soundbar supports wall mounting.

What's the power output of the HT-S400?

330 watts combined across the 2.1 channel system.