LG Sound bar for TV with Dolby Atmos 3.1.3 channel S77TY

S77TY

LG Sound bar for TV with Dolby Atmos 3.1.3 channel S77TY

Front view of LG Soundbar S77TY and subwoofer

The images used in the product overview below are for representative purposes. Refer to the image gallery at the top of the page for an accurate representation.

LG Soundbar on a beige surface against a beige backdrop in angled aerial perspective.

The ideal sound companion for your LG TV

Complete the LG TV experience with the sound bar that beautifully complements its design and sonic performance.

Stunning soundscapes surround you

LG Soundbar and LG TV in a black room playing a musical performance. White droplets representing soundwaves shoot upwards and forward from the soundbar, as subwoofer is creating a sound effect from the bottom. LG Soundbar and LG TV in a living room playing an orchestra performance. White waves of droplets representing soundwaves shoot upwards and forward from the soundbar and project from the TV, as subwoofer is creating a sound effect from the bottom. LG Soundbar, LG TV, rear speakers and a subwoofer are in a living room. A grid overlay appears over the room, like a scan of the space. White soundwaves made of droplets are coming out from the frontal perspective of the rear speakers.

*Screen images simulated.

LG Sound bars complete the LG TV experience

*Screen images simulated. 

**LG TV Remote usage is limited to certain features only. 

***WOW Interface Compatible TVs : OLED M4/G4/C4/B4/M3/G3/C3/B3/A3/Z2/G2/C2/CS/B2/A2, QNED 99/95/90/85/80/75, NANO 80/77/75, UHD UT90/UT80/UT73/UR/UQ. FHD 63 Compatible TVs may vary by year of release.

****WOW Orchestra Compatible TVs: OLED M4/G4/C4/B4/Z3/M3/G3/C3/B3/A3/Z2/G2/C2/CS/B2/A2, QNED 99/95/90/85/80. Compatible TVs may vary by year of release. QNED 80 support limited to 2022 and 2023 models.

*****Please note that services may not be available at the time of purchase. A network connection is required for updates.

******WOW Interface may vary depending on sound bar model.

Feel the realism of an audio panorama

Center Up-firing Channel

Soundscapes put you at their epicenter

The Center Up-firing Channel creates more lifelike sound, making voices clearer and on-screen action perfectly synced with the audio — no delays or stutters.

LG Soundbar and LG TV in a black room playing a musical performance. White droplets representing soundwaves shoot upwards and forward from the soundbar. A subwoofer is creating a sound effect from the bottom.

*The above is confirmed through an investigation of its own standards.

**Screen images simulated.

Dolby Atmos

Movie night sounds like the theater with Dolby Atmos

Immerse yourself in the perfect Dolby experience with LG TV's Dolby Vision and Dolby Atmos on LG Sound bar.

A movie plays on an LG OLED TV and LG Soundbar in a modern city apartment in a side angle view. White beads depicting sound waves project upwards and downwards from the Soundbar and TV, creating a dome of sound in the space. Dolby Atmos logo DTS X logo

*Screen images simulated.

Triple Level Spatial Sound

A virtual layer creates lifelike sound

Triple Level Spatial Sound adds a virtual layer to create a sound dome around you of richer sound.

LG Soundbar, rear speakers and LG TV are in a grand city apartment. Three red bands appear one at a time depicting virtual layers, and come together to create a whole sound dome.

*Triple Level Spatial Sound is available through Cinema and AI Sound Pro modes.

**The mid-layer is created using the Sound bar’s speaker channel. The sound of the front and front-top speakers are synthesized to build a sound field. If there is no rear speaker, the rear field cannot be created.

***Screen images simulated. 

****If there is no rear speaker, the rear field cannot be created.

3.1.3ch Ultimate Sound

Alluring sound all around

Immerse yourself in the scene with the lifelike soundscapes of Dolby Atmos and DTS:X projected by a 400W 3.1.3ch surround sound system and subwoofer.

LG Soundbar, LG TV, rear speakers and a subwoofer are in a living room of a skyscraper, playing a musical performance. White soundwaves made up of droplets project from the soundbar, looping around the sofa and living space. A subwoofer is creating a sound effect from the bottom. Dolby Atmos logo DTS X logo

*Dolby and Dolby Vision are registered trademarks of Dolby Laboratories Licensing Corporation.

**The double-D symbol is a trademark of Dolby Laboratories Licensing Corporation.

***Screen images simulated.

Smart sound knows your taste

Multi-Channel Audio Experience

Feel vast and expressive sonic wonder

The LG Sound bar converts basic 2-channel audio into multi-channel audio for deep sound that resonates through your space.

A warm gray area for design purpose.

An LG Soundbar, LG TV, and subwoofer are in a modern city apartment. The LG Soundbar emits three branches of soundwaves, made of white droplets that float along the bottom of the floor. Next to the Soundbar is a subwoofer, creating a sound effect from the bottom.

2 Channel

An LG Soundbar, LG TV, and subwoofer are in a modern city apartment. The LG Soundbar emits three branches of soundwaves, made of white droplets that float along the bottom of the floor. More white droplet soundwaves fire up from the top of the soundbar. Next to the Soundbar is a subwoofer, creating a sound effect from the bottom. As a whole, they are creating a dome effect across the room.

Multi-Channel

*Smart up-mixing algorithm applies the sound for each channel in AI Sound Pro, Cinema, Clear Voice Pro, Game, and Sports Modes.

**The multi-channel audio experience operates via a smart up-mixing algorithm. This algorithm does not apply to Standard Mode or Music Modes. Bass Blast doesn't use the smart up-mixing algorithm but copies 2ch information and outputs it to all channels. 

***Screen images simulated.

AI Sound Pro

Every mood and genre sounds right

AI Sound Pro categorizes different sounds into effects, music, and voices, and then applies the ideal settings to create the optimal audio experience.

LG Soundbar, rear speakers and LG TV are in a grand city apartment. Three red bands appear one at a time depicting virtual layers, and come together to create a whole sound dome.

*Screen images simulated.

Works in harmony with your favorites

Intense Gaming 

Sound syncs with every frame

Free up ports on your TV and connect consoles to your LG Sound bar without compromising graphics performance. VRR/ALLM support ensures tear-free, low input lag gaming.

LG Soundbar and LG TV are shown together. A racing car game is displayed on screen.

*Screen images simulated.

**According to HDMI 2.1 specifications standards, this sound bar supports eARC, VRR, and ALLM.

***TV, sound bar, and source device (e.g., gaming console) must all support VRR/ALLM.

****VRR pass-through supports 120Hz content. (For 4K, supports YCbCr 4:2:0 / For 1080p, supports 120Hz).

*****Please note that service may not be available at the time of purchase. A software update may be required. A network connection is required for the update.

******HDCP 2.3 supports 4K resolution content. 120Hz support varies by device, with support up to YCbCr4:2:0 for 4K.

Clear sound for a clean planet

Recycled Inside

Internal parts made with recycled plastic

LG Sound bars use recycled plastic use on top and bottom parts. Proof we're taking a more eco-minded approach to sound bar production.

There is a frontal perspective of the soundbar behind and a metal frame depiction of the soundbar in front. An inclined observation of the rear of the soundbar's metal frame with the words "Recycled Plastic" indicating the edge of the frame.

*Exact certifications may vary by sound bar model.

**Screen images simulated. 

***Use of recycled plastic and certifications may vary by model.

Pulp Packaging

Packaging made with recycled pulp

The LG Sound bar has been certified by SGS as an Eco Product due to a change in internal packaging from EPS foam (Styrofoam) and plastic bags to recycled molded pulp — an environmentally friendly alternative that still protects the product.

LG Soundbar packaging is against a beige background with illustrated trees. Energy Star logo SGS Eco Product logo

*Exact certifications may vary by sound bar model.

**Screen images simulated. 

***Use of recycled plastic and certifications may vary by model.

All Spec

What people are saying

Find Locally

Experience this product around you.

Our Picks for You