LG SN9YG vs LG SN8YG Side-by-Side Soundbar Comparison

Tested using Methodology v1.0

Updated Jan 12, 2024 07:44 PM

Channels5.1.2

Channels3.1.2

Variants

SN9YG (Black)

SN8YG (Black)

Review

See LG SN9YG Review

See LG SN8YG Review

Our Verdict

LG SN9YG

LG SN8YG

The LG SN9YG is a better soundbar than the LG SN8YG. The SN9YG is a 5.1.2 setup that's better built and offers a better surround performance. Some listeners may prefer its more neutral out-of-the-box sound to the SN8YG's more bass-heavy sound profile. However, the 3.1.2 SN8YG offers a better Atmos performance.

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Black

SN9YG

Black

SN8YG

Black

SN9YG

Black

SN8YG

Black

SN9YG

Black

SN8YG

Black

SN9YG

Black

SN8YG

Black

SN9YG

Black

SN8YG

Main Differences for
Mixed Usage

Threshold

0.10

Mixed Usage

7.8

7.7

Stereo Frequency Response

8.2

7.9

Full Comparison

Mixed Usage

7.8

7.7

Dialogue/TV Shows

8.0

8.1

Music

8.0

7.7

Movies

7.6

7.4

Design

Style - Bar

Style photo - bar

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Style - Subwoofer

Style photo - sub

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Style - Satellites

Style photo - satellites

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Dimensions - Bar

Dimensions photo - bar

Width

48.0" (121.9 cm)

41.7" (106.0 cm)

Height

2.2" (5.6 cm)

Depth

5.7" (14.4 cm)

4.7" (12.0 cm)

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Dimensions - Subwoofer

Dimensions photo - sub

Width

8.7" (22.1 cm)

Height

15.4" (39.0 cm)

Depth

12.3" (31.2 cm)

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Dimensions - Satellites

Dimensions photo - satellites

Width

N/A

Height

N/A

Depth

N/A

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Back - Bar

Back photo - bar

Bar Mounting

Universal (holes on underside)

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Back - Subwoofer

Back photo - sub

Enclosure

Ported

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Back - Satellites

Back photo - satellites

Mounting

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Build Quality

8.0

7.5

Build quality photo

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In The Box

In The Box photo

HDMI Cable Length

N/A

Digital Optical Cable Length

1.5 m (4.9 ft)

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Sound

Stereo Frequency Response

8.2

7.9

Stereo Setup

Raw Frequency Response

Frequency Response Small

Tested Preset

Standard

Slope

-0.71

-1.16

Std. Err.

3.30 dB

4.46 dB

Channels

5.1.2

3.1.2

Low-Frequency Extension

29.5 Hz

27.9 Hz

High-Frequency Extension

19.9 kHz

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Stereo Frequency Response With Preliminary Calibration

8.2

Frequency Response Calibrated

Suggested Preset

Standard

Suggested Bass Setting

-5

Suggested Treble Setting

Slope

-0.71

-0.24

Std. Err.

3.30 dB

3.57 dB

Low-Frequency Extension

29.5 Hz

27.9 Hz

High-Frequency Extension

19.9 kHz

Stereo Soundstage

7.0

Crosstalk

Crosstalk Error

2.53 dB

2.50 dB

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Stereo Dynamics

7.7

6.8

Dynamic Range Compression

SPL @ Max Volume

89.5 dB SPL

92.8 dB SPL

DRC @ Max Volume

0.95 dB

3.62 dB

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Stereo Total Harmonic Distortion

6.9

6.7

THD

Weighted THD @ 80dB

0.67

0.71

Weighted THD @ Max Volume

3.62

4.39

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Center

7.5

8.1

Center Setup

Frequency Response

Localization

Discrete

Slope

-0.53

-0.16

Std. Err.

4.37 dB

3.42 dB

SPL @ Max Volume

87.4 dB SPL

90.3 dB SPL

Weighted THD @ 80dB

3.73

1.11

Weighted THD @ Max Volume

6.56

3.15

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Surround 5.1

5.3

3.7

Surround Setup

Frequency Response

Localization

Phantom (Side Firing, Bar)

Stereo (Downmix)

Slope

0.13

-1.22

Std. Err.

5.99 dB

4.52 dB

SPL @ Max Volume

92.8 dB SPL

93.3 dB SPL

Weighted THD @ 80dB

1.58

0.71

Weighted THD @ Max Volume

3.32

4.46

7.1 Rears

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Height (Atmos)

5.4

6.1

Height Setup

H Frequency Response

Localization

Phantom (Up Firing, Bar)

Slope

1.38

-0.10

Std. Err.

6.32 dB

4.43 dB

SPL @ Max Volume

89.1 dB SPL

89.0 dB SPL

Weighted THD @ 80dB

0.34

0.41

Weighted THD @ Max Volume

1.26

1.49

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Sound Enhancement Features

9.8

9.4

Room Correction

Yes

Dialogue Enhancement

Yes

Auto-Volume/Night Mode

Yes

Subwoofer Level Adjustment

Yes

Bass Adjustment

Yes

Treble Adjustment

Yes

EQ

Presets

Surround Level Adjustment

Yes

Rear Level Adjustment

Yes

Height Level Adjustment

Yes

Virtual Surround

Yes

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Connectivity

Physical Inputs - Bar

Physical inputs bar photo 1

Physical inputs bar photo 2

Optical Audio In

HDMI ARC

1 (shared)

HDMI Out

1 (shared)

Full HDMI In

Analog Audio In 3.5mm (Aux)

RCA In

USB for Files

Ethernet

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Audio Format Support - ARC

eARC

Yes

Dolby Atmos

Yes

Dolby Digital

Yes

Dolby Digital Plus

Yes

DTS

Yes

DTS:X (eARC only)

Yes

Dolby TrueHD (eARC only)

Yes

DTS-HD MA (eARC only)

Yes

5.1 PCM (eARC only)

Yes

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Audio Format Support - Full HDMI In

Dolby Atmos

Yes

DTS:X

Yes

Dolby Digital

Yes

Dolby Digital Plus

Yes

DTS

Yes

Dolby TrueHD

Yes

DTS-HD MA

Yes

5.1 PCM

Yes

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Audio Format Support - Optical

Dolby Digital

Yes

DTS

Yes

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Latency

7.8

7.6

Latency Video

ARC

50 ms

75 ms

Optical

55 ms

56 ms

Full HDMI In

104 ms

87 ms

Wireless Playback

9.0

Bluetooth

Yes

Wi-Fi

Yes

Chromecast built-in

Yes

Apple AirPlay

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Other Input Specifications

4k @ 60 Hz Passthrough

Yes

4k @ 60 Hz @ 10 bit Passthrough

Yes

4k @ 60 Hz @ 4:4:4 Passthrough

Yes

HDR10 Passthrough

Yes

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Connectivity - Subwoofer

Physical inputs subwoofer photo 1

Physical controls subwoofer photo 1

Sub Wireless

Yes

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Connectivity - Satellites

Physical inputs satellites photo 1

Physical controls satellites photo 1

Sat Wireless

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Additional Features

Interface

Interface photo

Display

Yes

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Bar Controls

Controls photo

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Remote

Remote photo

Universal Remote

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Voice Assistants Support

Amazon Alexa

Google Assistant

Yes (Built-in)

Apple Siri

App

App image

App Name

LG Wi-Fi Speaker

iOS

Yes

Android

Yes

Acts As A Remote

Yes

Controls Soundbar's Settings

All

Casts Device Files

Yes

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Other Features

Power Saving

Standby

HDMI CEC (TV Remote Control)

Yes

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Black

SN9YG

Black

SN8YG

Black

SN9YG

Black

SN8YG

Black

SN9YG

Black

SN8YG

Black

SN9YG

Black

SN8YG

Black

SN9YG

Black

SN8YG