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LG S70TY Soundbar vs LG SC9S Soundbar

Both are LG 3.1 Atmos bars with a wireless sub, so the split comes down to channels and TV pairing. The SC9S adds a third height channel, DTS:X, Wi-Fi with AirPlay 2, and 4K HDR passthrough, and it has a large body of owner ratings behind it. The S70TY is the slimmer, lighter bar built to nest under an LG QNED set, with WOW Orchestra and a metal grille. Buy the SC9S for a fuller Atmos bubble and more inputs; buy the S70TY if space under the TV is tight and the TV is LG.

  • Choose the LG S70TY if you want a low-profile bar that slides under an LG QNED TV on its stand and you mainly stream Atmos from the TV itself.
  • Choose the LG SC9S if you want true 3.1.3 height channels, DTS:X, Wi-Fi streaming and a 4K HDR passthrough HDMI input for a console or streamer.

Prices

  • LG S70TY Soundbar: $150.00 at Walmart (last seen Oct 30)
  • LG SC9S Soundbar: $319.00 at eBay (checked today)
  • Difference: the LG S70TY Soundbar is $169.00 cheaper than the LG SC9S Soundbar at the latest prices (Oct 30 and Nov 9)
LG
LG S70TY

LG S70TY Soundbar

LG S70TY

$150.00at WalmartObserved Oct 30, 2026, 1:45 PM
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Pros
  • Very slim and light, easy to fit under a TV on a stand
  • WOW Orchestra pairs its speakers with an LG TV's own speakers
  • Metal grille keeps dust and debris out
  • One remote controls bar and LG TV together
Cons
  • No Wi-Fi, so streaming is Bluetooth only
  • Single height channel gives a narrower Atmos effect
  • No DTS:X and no video passthrough
  • Few owner reviews to judge long-term reliability
LG
LG SC9S 3.1.3 Channel Dolby Atmos Soundbar

LG SC9S Soundbar

LG SC9S 3.1.3 Channel Dolby Atmos Soundbar

4.4(951 ratings)
$319.00at eBayVerified
See all prices and details
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Store links may earn us a commission.

Pros
  • True 3.1.3 layout with three height channels
  • DTS:X support on top of Dolby Atmos
  • Wi-Fi and AirPlay 2 for phone and tablet streaming
  • 4K Dolby Vision and HDR10 passthrough for a console or streamer
  • Strong owner rating across hundreds of reviews
Cons
  • Wide and deep bar needs a broad TV stand
  • Synergy bracket is aimed at LG OLED evo C series
  • Heavier sub takes more floor space
  • No built-in voice assistant of its own

What separates them

LG S70TY SoundbarLG SC9S Soundbar
Channel configuration3.1.1 with a single up-firing height driver3.1.3 with three height channels and nine drivers in the bar
Surround formatsDolby Atmos onlyDolby Atmos plus DTS:X and DTS Digital Surround
Network and streamingBluetooth only, no Wi-FiWi-Fi with AirPlay 2 and Bluetooth
HDMI passthroughHDMI eARC out, no video passthroughHDMI in with 4K, Dolby Vision and HDR10 passthrough
TV fitSlim, curved, 3 kg bar that nests under a QNED on a stand38.4 in wide, 4.9 in deep, with an OLED evo C-series synergy bracket
Build and finishPlastic body with a metal grille that resists dustPlastic body, no grille claim, heavier sub at 17.2 lb
Voice assistantsBuilt-in voice assistantGoogle Assistant and Siri support
Owner feedbackNewer and less reviewed4.4 out of 5 from 951 ratings

Price history

$399.00$150.00
Oct 28Nov 9
  • LG S70TY Soundbar: lowest $150.00 on Oct 30 at Walmart; $279.90 on Nov 9.
  • LG SC9S Soundbar: lowest $339.00 on Nov 5 at eBay; $399.00 on Nov 9.

Prices at every store

LG S70TY Soundbar

  • Cowboy MaloneyNew

    In stock

    $299.98+ $149.00 shippingObserved at 11:37 AM
    Visit Cowboy Maloney
  • WalmartNew

    Availability unknown

    $150.00Observed Oct 30, 2026, 1:45 PM
    Visit Walmart
  • eBayNew

    Availability unknownSold by j.m.moore (100% positive, 181 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $179.00+ $32.20 shippingObserved at 11:37 AM
    Visit eBay
  • AmazonNew

    Availability unknown

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

    $279.90Free shippingObserved at 2:53 PM
    Visit Amazon

Also available at

  • eBayCheck price at eBay
  • WalmartCheck price at Walmart

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All 15 stores and price history →

LG SC9S Soundbar

  • GreentoeNew

    In stockSold by TV's & Home Theater

    $399.00Free shippingObserved at 2:55 PM
    Visit Greentoe
  • WalmartNew

    In stockSold by Da BaersReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $494.99Free shippingVerified
    Visit Walmart
  • eBayNew

    Availability unknownSold by sampswalla (100% positive, 135 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $319.00+ $50.00 shippingVerified
    Visit eBay
  • AmazonNew

    Availability unknown

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

    $499.99Free shippingObserved at 2:54 PM
    Visit Amazon

Store links may earn us a commission.

All 20 stores and price history →

Specs compared

SpecLG S70TY SoundbarLG SC9S Soundbar
BluetoothYesYes
Wi-FiNoYes
Assistant SupportBuilt-In Voice AssistantGoogle Assistant, Siri
Max Wattage400 watts30 W
WirelessYesYes
Special PurposeSoundbarSoundbar
Dolby Atmos EnabledYesYes
ConnectivityBluetooth, HDMI, EthernetBluetooth, Wi-Fi, USB, HDMI, Optical Audio
OutdoorNo—
Connectivity TechnologyBluetooth, Wireless—
Ports And InterfacesHDMI, HDMI eARC, USB—
Speaker PlacementWall mountable—
Show all 40 specsShow fewer specs
SpecLG S70TY SoundbarLG SC9S Soundbar
Audio Configuration3.1 system—
Audio HighlightsDolby Atmos—
Audio Channels3.1.1 Channel—
Design HighlightsWall mountable—
MaterialPlastic—
StyleLong, skinny, slightly curved profile (remote)—
Driver Size16 cm (Wireless Sub-Woofer)—
Driver ConfigurationUpward-firing—
Driver TypeUpward-firing driver—
Number Of Drivers

What reviewers say

LG SC9S Soundbar

  • 4.4 / 5951 ratings

Owners rate it well overall at 4.4 out of 5 from 951 ratings. Most praise the Atmos effect, the clean look under an LG OLED and the easy HDMI eARC hookup. Complaints center on modest bass and height effects that depend on the room.

What people mention
  • SoundstagePraisedListeners say dialogue is clear and the bar spreads sound wider than its size suggests.
  • Atmos heightMixedHeight effects impress in low-ceiling rooms but are subtle in open spaces.
  • BassCriticisedOwners find the wireless subwoofer light on deep bass for action movies.
  • SetupMixedHDMI eARC is plug-and-play with LG TVs, but menus are less intuitive on other brands.
Reviews
  • The Best Soundbars for 2026
  • The Best Soundbars for 2026 - PCMag editors select and review products independently

Questions and answers

Which is better for movies with overhead effects?
The SC9S. Its three height channels spread the overhead layer wider than the S70TY's single up-firing driver, and it also decodes DTS:X discs and streams.
Which one fits better under an LG QNED TV?
The S70TY. It is slim, curved and light enough to nest under a QNED on its stand, and WOW Orchestra lets the TV speakers join in.
Do I need Wi-Fi on a soundbar?
Only if you want to cast from a phone or use AirPlay 2. The SC9S has both; the S70TY relies on Bluetooth, which is fine if the TV is the main source.
Is the step up to the SC9S worth it?
Yes if you game or watch discs. The extra height channel, DTS:X and 4K HDR passthrough do things the S70TY cannot. If the bar must sit low under a QNED, stay with the S70TY.
Which has better build quality?
Both use plastic bodies. The S70TY adds a metal grille that keeps dust out; the SC9S is heavier overall, mostly from its larger subwoofer.
Can either add rear speakers later?
The SC9S is wireless surround ready with LG's SPQ8-S rear kit. The S70TY is a fixed 3.1.1 bar with no rear-speaker add-on listed.

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Single height channel
—
Max Output Power400 Watts—
Nominal Output Power400 W (RMS)—
Nominal Impedance3 \u03a9 (subwoofer)—
Output Level (SPL)85dB (full volume)—
Weight3 kg (soundbar)—
With Surround SoundYes—
VRR and ALLMexperience tear-free, low input lag gaming.—
Configuration—2 Channel
Color—Black
Height—15.4 in high
Depth—12.3 in deep
Width—38.4 in wide
Connections—Optical S/PDIF, HDMI, USB-A
Wireless Type—AirPlay 2, Airplay
Weight (Subwoofer) (lb)—17.2
No. of Optical S/PDIF (pcs)—1
NFC—No
Surround Sound Formats—Dolby Digital, Dolby Atmos, DTS:X, DTS Digital …