LG S40TR 4.1-Channel Soundbar with Rear Speakers and Wireless Subwoofer

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Product guide

LG S40TR 4.1-Channel Soundbar with Rear Speakers and Wireless Subwoofer

The LG S40TR is a 4.1-channel home theater soundbar system with rear speakers and a wireless subwoofer. It combines Dolby Audio, Bluetooth and optical connectivity with features aimed at clearer dialogue and easier control, though the rear speakers still require a cable between them.

At a glance

Rear surround speakers and a wireless subwoofer are part of the 4.1-channel system.
Dolby Audio and DTS Digital compatibility are listed for TV, movie and music playback.
Clear Voice Plus is intended to make dialogue easier to hear.
The listing describes LG TV integration, including control through one remote on select compatible models.
A soundbar app offers bass, treble and mid-range adjustment.

Price

$199.99Save 29%

Reference price: ~~$279.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Includes rear speakers as well as a wireless subwoofer, adding a surround-oriented layout beyond a standalone bar.
Optical input and Bluetooth provide two listed connection options for TV audio and music.
Clear Voice Plus and the three-band app equalizer offer ways to tailor dialogue and tonal balance.

Cons

The rear speakers require a wired connection to each other, despite their wireless connection to the soundbar.
The listed 240-volt input may not suit buyers expecting a typical US household power specification. Verify power compatibility before purchase.

Technical specifications

24 specifications

Identity and audio
Brand	LG
Model	S40TR
Speaker type	Soundbar
Audio channels	4.1
Audio output mode	Surround
Maximum output power	400 watts
Speaker size	2.5 inches
Audio driver type	Dynamic Driver

Connectivity and controls
Wireless connection listed	Bluetooth
Connectivity technology	Bluetooth, Optical, Wireless
Subwoofer connection	Wireless
Control method	Remote
Additional features	Optical Input, USB Port

Power and warranty
Power configuration	Corded Electric
Input voltage	240 volts
Battery requirement	2 AAA batteries required.
Warranty type	Limited
Warranty description	1 Year Parts & Labor

Dimensions and installation
Soundbar dimensions (D x W x H)	3.4"D x 28.4"W x 2.5"H
Weight listed	12.9 pounds
Mounting type listed	Tabletop Mount
Color	Black

Materials and protection
Enclosure material	Metal, Plastic
Water resistance listed	Not Water Resistant

What to know before buying

The manufacturer describes the subwoofer and rear speakers as wireless, but also specifies that the rear speakers require a wired connection between them and that one rear speaker requires AC power. Customer feedback likewise reports disagreement about how wireless the system feels, so plan for speaker placement and cables. LG TV integration features are limited to select compatible models.

What’s in the box

Included

2 AAA batteries
Optical cable
Rear speaker cable
Remote
Warranty card

Who is it for?

A good fit for

TV owners seeking a soundbar system with rear speakers and a separate wireless subwoofer.
Buyers who want optical or Bluetooth connectivity and options to tune dialogue and equalization.
Owners of select compatible LG TVs who want shared control through the TV remote.

Less suited to

Buyers who need completely cable-free rear speakers or cannot provide AC power near a rear speaker.
Buyers who need confirmed compatibility with a particular TV or power setup without checking the listing details.

LG S40TR 4.1-Channel Soundbar with Rear Speakers and Wireless Subwoofer · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.2 / 5 · 703 ratings

5 stars64%64%
4 stars15%15%
3 stars10%10%
2 stars5%5%
1 star6%6%

Customer feedback reports favorable impressions of sound quality, dialogue clarity, setup and value, while Bluetooth reliability and overall functionality are mixed. Some customers say the rear speakers work well, but others object to the wiring needed between them or advise against buying. For buyers considering this system, that reported cable concern matters because the listing itself says the rear speakers need a wired connection, even though the subwoofer connection is wireless.

Positive themes

Customer feedback highlights sound quality and ease of setup.
Some customers report clear sports commentary and movie dialogue.

Negative themes

Some customers report Bluetooth connection problems.
Some customers object to the rear-speaker wiring and advise against the purchase.

Mixed feedback

Feedback is mixed on Bluetooth reliability, functionality and how wireless the system feels.

Frequently asked questions

Are the rear speakers completely wireless?

They connect wirelessly to the soundbar according to the listing, but the rear speakers require a wired connection between them, and one rear speaker requires AC power.

What audio connections are listed?

The listing specifies Bluetooth and optical connectivity. It also lists a USB port as an additional feature.

Can an LG TV remote control the S40TR?

The listing describes one-remote control and other WOW features for select compatible LG TV and soundbar models. Compatibility is not stated for every LG TV.

Does it include a subwoofer?

Yes. The title and product details describe a wireless subwoofer as part of the system.