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LG S40T vs LG s20a 2.0 Channel Soundbar

Both cost about $99 as of November 4, 2026: the S40T at $99.00 on eBay and the S20A at $99.99 at BJ's Wholesale Club. The S40T is the better buy for most people because its separate wireless subwoofer adds real bass, and it has HDMI ARC and optical input. The S20A is the simpler pick for a small room or a secondary TV where you want a slim bar and no subwoofer box.

Today the LG S40T costs $1.99 less at its best price.

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LG
LG S40T

LG S40T

4.1· 80 ratings
$98.00at eBayVerified
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Choose the LG S40T if you want a 2.1 system with a separate wireless subwoofer, HDMI ARC and optical input for movie and TV bass.

Pros
  • Separate wireless subwoofer gives bass a 2.0 bar cannot match
  • 300 W output fills a medium room
  • HDMI ARC and optical inputs suit a TV, console or disc player
  • Clear Voice Plus lifts dialogue in movies and shows
  • Wall-mountable and table-top placement
Cons
  • No Dolby Atmos or up-firing channels
  • Subwoofer needs its own spot and power outlet
  • Rated 4.1 out of 5 from 80 ratings, not outstanding
  • Bluetooth 5.3 only; no Wi-Fi streaming
LG
LG s20a 2.0 Channel Soundbar

LG s20a 2.0 Channel Soundbar

$99.99at BJ's Wholesale ClubObserved at 7:37 PM
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Choose the LG S20A if you want a compact 2.0 bar with built-in woofers, no subwoofer to place, and LG TV features like WOW Orchestra and ThinQ app control.

Pros
  • Single bar, no subwoofer box to place
  • WOW Orchestra syncs with LG TVs for combined TV and bar audio
  • LG ThinQ app and WOW Interface control
  • Listed as Dolby Atmos enabled
  • Cheapest at $99.99 at BJ's Wholesale Club as of November 4, 2026
Cons
  • 100 W and no separate sub, so weak deep bass
  • No optical input listed
  • Atmos claim is limited without up-firing or rear speakers
  • Fewer inputs than the S40T

What separates them

LG S40TLG s20a 2.0 Channel Soundbar
Channel setup2.1 channels with a separate wireless subwoofer2.0 channels with built-in woofers and a passive radiator
Bass6.7-inch subwoofer driver handles everything below a 150 Hz crossoverBuilt-in woofers only; no separate sub
Power300 W rated output100 W max
InputsHDMI ARC, optical, USB, Bluetooth 5.3HDMI, USB, Bluetooth
LG TV featuresOne-remote TV control, AI Sound Pro, Clear Voice PlusWOW Orchestra, WOW Interface, LG ThinQ app
Dolby AtmosNo; Dolby Digital and DTS DigitalListed as Dolby Atmos enabled
FootprintSoundbar plus a separate subwoofer box to placeSingle bar, nothing else to position
Price as of November 4, 2026$99.00 at eBay$99.99 at BJ's Wholesale Club

Price history

$166.99$99.99
Oct 29Nov 5
  • LG S40T: lowest $109.32 on Oct 29; $149.99 on Nov 5.
  • LG s20a 2.0 Channel Soundbar: lowest $99.99 on Nov 5 at BJ's Wholesale Club.

Prices at every store

LG S40T

  • WalmartNew

    In stockSold by Electronic Express

    $169.99Verified
    Visit store
  • LGNew

    In stock

    $169.99Observed at 8:00 PM
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  • eBayNew

    Availability unknownSold by warspawn1 (100% positive, 189 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $98.00+ $18.57 shippingVerified
    Visit store
  • Primetime Audio VideoNew

    Availability unknown

    $166.99Observed at 8:17 PM
    Visit store

Also available at

  • WalmartCheck price at Walmart
  • eBayCheck price at eBay
  • Big Sandy SuperstoreCheck price at Big Sandy Superstore
All 10 stores and price history →

LG s20a 2.0 Channel Soundbar

  • BJ's Wholesale ClubNew

    In stock

    $99.99Free shippingObserved at 7:37 PM
    Visit store
  • LGNew

    In stock

    $119.99Free shippingObserved at 7:37 PM
    Visit store
  • eBayNew

    Availability unknownSold by quailtom (99.8% positive, 8,200 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $95.00+ $12.53 shippingVerified
    Visit store
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $111.00Free shippingObserved at 7:37 PM
    Visit store
All 7 stores and price history →

Specs compared

SpecLG S40TLG s20a 2.0 Channel Soundbar
WirelessYesYes
Configuration2.1 Channel2 Channel
ColorBlackBlack
ConnectivityBluetooth, USB, HDMI, Ethernet, Optical AudioBluetooth, USB, HDMI
Max Wattage200 W100 W
Special PurposeSoundbarSoundbar
Frequency ResponseRoughly 300Hz to 3kHz (where human speech is mo…—
Crossover Frequency150 Hz (subwoofer handles frequencies below)—
BluetoothBluetooth 5.3, Yes—
Connectivity TechnologyWireless, Bluetooth—
Ports And InterfacesUSB, HDMI ARC—
Wi-FiNo—
Show all 40 specsShow fewer specs
SpecLG S40TLG s20a 2.0 Channel Soundbar
Assistant SupportAlexa—
Speaker PlacementWall-mountable, Table-top—
Audio Configuration2.1 system—
Audio HighlightsAI Sound Pro, Dolby Digital—
Audio Channels2.1-Channel—
Design HighlightsSignature crest design—
MaterialRecycled plastic—
StyleCrest Wave—
Driver Size6.7-inch (subwoofer driver)—
Driver Configuration

What reviewers say

LG S40T

Owner feedback on the S40T is generally positive, with a 4.1 out of 5 average from 80 ratings. Buyers tend to praise the bass and value for the price and note clearer dialogue. Complaints center on the modest power and limited connectivity.

Pros
  • Strong bass from the wireless subwoofer for the price
  • Clearer speech in movies and TV shows
  • Easy setup over HDMI ARC and optical
  • Compact size that fits small spaces
Cons
  • Not loud enough for large rooms
  • No Wi-Fi or app-based streaming
  • Sound can feel thin at low volumes

Questions and answers

Which has better bass, the LG S40T or the S20A?
The S40T. Its 6.7-inch wireless subwoofer takes everything below a 150 Hz crossover, while the S20A relies on built-in woofers and a passive radiator.
Is the LG S40T worth it over the S20A at the same price?
Yes for most shoppers. At $99.00 on eBay versus $99.99 at BJ's Wholesale Club as of November 4, 2026, the S40T adds a subwoofer, HDMI ARC and optical input for about the same money.
Which is better for a small room or bedroom?
The S20A. It is one bar with no subwoofer box to place, and 100 W is enough at close range. The S40T's subwoofer needs floor or shelf space and a power outlet.
Do either of these support Dolby Atmos?
The S20A is listed as Dolby Atmos enabled; the S40T lists Dolby Digital and DTS Digital. Neither has up-firing channels, so Atmos height effects are limited on both.
Which works better with an LG TV?
The S20A has WOW Orchestra and WOW Interface for tighter LG TV integration. The S40T still lets you control volume and sound modes with the LG TV remote over HDMI ARC.
Which lasts longer?
Neither maker publishes a lifespan figure. The S40T's separate subwoofer adds one more component and cable to fail, while the S20A is a single sealed bar with fewer parts.

More comparisons

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No up-firing channels
—
Driver TypeSubwoofer—
Number Of DriversFewer speakers (compared to premium systems)—
Max Output Power300 W—
Nominal Output Power300 W (RMS)—
Nominal Impedance4 Ohm (Sound bar)—
Weight3.60 lb (approximate)—
Depth3.4 in (soundbar)—
Width30 in wide—
Channel configuration—2.0 channels
Woofers—Built-in sub woofers
Tweeters—double tweeters
Passive radiator—passive radiator
Sound modes—three optimized modes
Audio format—Dolby Digital
App control—LG ThinQ app
TV control—LG WOW Interface
TV sync feature—WOW Orchestra
With Surround Sound—Yes