LG S70TY 400W 3.1.1-Channel Soundbar System with Dolby Atmos Center Channel

Vendor:LG

LG S70TY 400W 3.1.1-Channel Soundbar System with Dolby Atmos Center Channel

$296.99 $399.99

S70TY

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Product Details

LG 3.1.1 400W RMS Dolby Atmos DTS:X Center Height Wireless Sub HDMI eARC 4K120 Pass-Through VRR ALLM WOW Orchestra AI Sound Pro Bluetooth 5.1 Wall-Mountable

LG S70TY – 400W 3.1.1-Channel Soundbar System with Dolby Atmos Center Height Channel

Name: LG S70TY 400W 3.1.1-Channel Soundbar System with Dolby Atmos Center Channel
Brand: LG
SKU: S70TY
Price: 296.99 USD
Availability: OutOfStock
Rating: 4.9 (38 reviews)

Cinematic dialogue clarity, 3D spatial decoding, and HDMI 2.1-class pass-through for modern home theater stacks

The LG S70TY operationalizes living-room-grade immersive audio with a 3.1.1-channel topology and 400W total system output, pairing Dolby Atmos and DTS:X decoding with a dedicated center height channel to prioritize dialogue intelligibility and vertical presence. Built for modern TV ecosystems, it supports HDMI eARC plus 4K120Hz pass-through with VRR and ALLM—enabling high-performance console routing without compromising display features. Add AI Sound Pro for content-aware tuning and WOW Orchestra integration (LG TV dependent) for a harmonized, fuller front stage that scales from streaming to sports to blockbuster mixes.

✔ 3.1.1 channels + 400W RMS ✔ Dolby Atmos + DTS:X decoding ✔ Center height for clearer dialogue ✔ HDMI eARC + 4K120 pass-through ✔ VRR/ALLM gaming-friendly routing ✔ Wireless subwoofer included

Home Theater Value: Dialogue-First Tuning + Immersive Decoding + Next-Gen HDMI Pass-Through

S70TY is engineered to deliver a premium soundbar footprint without sacrificing core theater fundamentals: a dedicated center height channel to anchor voice, immersive spatial codecs (Atmos/DTS:X) to expand scale and depth, and a wireless subwoofer for low-end authority. The HDMI feature set supports 4K120Hz pass-through with VRR/ALLM for clean console integration, while AI Sound Pro adapts tonality and dynamics based on content type for consistently balanced playback.

400W

Power

Total RMS

3.1.1

Channels

Center height

eARC

HDMI

High-bitrate audio

4K120

Pass-through

VRR/ALLM

WOW Orchestra/WOW Interface compatibility depends on supported LG TV models and firmware. 4K120/VRR/ALLM require compatible source devices, cables, and display.

Core Capabilities

🗣️

Center Height Channel for Clearer Dialogue and Vertical Presence

The 3.1.1 configuration adds a dedicated center height channel to increase vocal separation and perceived elevation—helping dialogue stay intelligible during action-heavy scenes while reinforcing Atmos-enabled mixes with improved front-stage height cues.

Channels3.1.1

FocusDialogue clarity

HeightCenter height channel

Use CaseMovies • TV • sports

Dolby Atmos + DTS:X Decoding for 3D Immersion

Spatial decoding expands the soundstage for a more enveloping presentation. Support includes modern bitstreams and high-fidelity formats for premium streaming and disc playback when routed via eARC or supported inputs.

DecodingDolby Atmos • DTS:X

DolbyTrueHD • Digital

DTSDTS-HD MA

AudioLPCM • PCM

🎧

💥

400W Output with Wireless Subwoofer for Dynamic Impact

A 400W total system output (soundbar + subwoofer) delivers strong transient response and room-filling presence. The wireless, bass-reflex subwoofer adds low-frequency weight for cinematic effects and music playback without hardwiring.

Total Power400W RMS

Soundbar180W RMS

Subwoofer220W RMS

Sub TypeWireless bass-reflex

HDMI eARC + 4K120 Pass-Through with VRR/ALLM

HDMI eARC enables high-bitrate audio return from compatible TVs, while HDMI pass-through supports 4K120Hz and modern gaming features (VRR/ALLM), allowing consoles to route through the soundbar without stripping performance-critical video capabilities.

HDMIHDMI In • HDMI eARC

Video4K120 pass-through

GamingVRR • ALLM

ControlCEC • ARC/eARC

🎮

🧠

AI Sound Pro: Content-Aware Tuning for Balanced Playback

AI Sound Pro analyzes content and applies adaptive EQ and processing to keep dialogue, effects, and music in proportion—reducing the need for manual mode switching across streaming, movies, and live sports.

FeatureAI Sound Pro

BenefitAuto optimization

Use CaseMovies • music • sports

GoalClarity + balance

WOW Orchestra + WOW Interface for LG TV Integration

Designed to pair with supported LG TVs, WOW Orchestra synchronizes the soundbar with TV speakers for a fuller, harmonized output, while WOW Interface centralizes audio controls within the TV UI for streamlined operation.

IntegrationWOW Orchestra

ControlWOW Interface

TargetLG QNED (varies)

OutcomeFuller soundstage

📺

Key Features

Immersive decoding, dialogue-first channel design, and gaming-ready HDMI connectivity

🗣️

Center Height Dialogue

Voice

Dedicated center height channel enhances dialogue clarity and adds vertical presence to the front stage.

ClarityHeightFocus

🎧

Dolby Atmos + DTS:X

Spatial decoding expands immersion for modern cinematic mixes and high-impact streaming playback.

AtmosDTS:XScale

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400W + Wireless Sub

Bass

400W total output with a wireless bass-reflex subwoofer delivers depth, punch, and cinematic impact.

ImpactLow-endRoom-fill

🎮

4K120 Pass-Through

HDMI

HDMI eARC plus 4K120 pass-through with VRR/ALLM keeps next-gen console features intact.

4K120VRRALLM

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AI Sound Pro

Automatically optimizes sound profiles for movies, music, and sports to maintain consistent balance.

AdaptiveBalancedEasy

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WOW Orchestra

LG TV

Syncs with supported LG TVs for a harmonized, fuller output and streamlined control experience.

SyncFullerUnified UI

Technical Specifications

Audio System

Channel Configuration3.1.1-Channel

Total Power Output400W RMS

Soundbar Output180W RMS

Subwoofer Output220W RMS

Driver Configuration6× full-range + 1× subwoofer

SubwooferWireless, bass-reflex

Audio Formats & Processing

Spatial AudioDolby Atmos • DTS:X

DolbyDolby Digital • TrueHD

DTSDTS-HD MA

PCMLPCM • PCM

AI ProcessingAI Sound Pro

LG TV FeaturesWOW Orchestra • WOW Interface

Connectivity & HDMI

HDMI1× HDMI In • 1× HDMI eARC

Optical1× TOSLINK

USB1× USB-A

Bluetooth5.1 (AAC, SBC)

HDMI FeaturesARC • eARC • CEC

Gaming / Video4K120 • VRR • ALLM

HDR Pass-ThroughHDR10 • Dolby Vision • HLG

USB Playback & Power

USB FormatsAAC • MP3 • FLAC • WAV • WMA

File SystemsFAT16 • FAT32 • NTFS

Power (Soundbar)33W

Power (Subwoofer)33W

Standby0.5W

Dimensions, Weight & Identification

Recommended TV Size43" and up

Soundbar Dimensions37.4 × 2.5 × 4.5 in

Soundbar Weight6.6 lb (3 kg)

Subwoofer Dimensions7.9 × 14.8 × 11.2 in

Subwoofer Weight12.7 lb (5.8 kg)

UPC195174071366

What’s in the Box

🔊

LG S70TY 400W 3.1.1-Channel Soundbar System

Dolby Atmos + DTS:X decoding with center height channel and wireless subwoofer

📦

Wireless Subwoofer

Bass-reflex design for deep, room-filling low-end impact

🔌

2 × Power Cords

Soundbar and subwoofer power (regional specs may vary)

🕹️

Remote Control

Includes batteries (type may vary by region)

🧰

Wall Mount Bracket

Wall-mount hardware included for clean, minimalist installs

🛡️

Manufacturer Warranty

Limited 1-Year coverage (terms and conditions apply)

Included in the Box