LG SC9 Review | 109 Data compared

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  • Avg. price: ~£280
  • N. of audio channels: 3.1.3
  • Audio output power: 400 W
  • HDMI ARC type: eARC

LG SC9 review. Compare 109 technical specifications and user reviews to see how it ranks among soundbars and if it is worth buying.

8.7

Overall score

What it is: An overall evaluation of the soundbar's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best soundbars on the market.

Score components:

80.0%

8.8

Technical Score

20.0%

8.2

User score

Excellent
8.8

Technical Score

What it is: An assessment of the soundbar's technical performance, covering key areas such as audio quality, channel configuration, connectivity, HDMI and wireless features, and design.

When it matters: When you want to compare soundbars based on technical performance and available features.

Score components:

25.0%

9.1

Audio

18.0%

8.7

Formats

16.0%

8.4

Connectivity

14.0%

9.8

Controls

12.0%

9.6

HDMI & Gaming

10.0%

8.4

Smart features

5.0%

5.7

Design

Excellent
8.2

User score

What it is: A rating that combines user reviews and the total number of reviews received by the soundbar.

When it matters: When you want to know how a soundbar sounds in real use and how satisfied owners are with dialogue clarity, bass, and ease of setup.

Score components:

70.0%

8.7

User reviews

30.0%

7.0

Popularity

User score:
United Kingdom
amazon
4.2
(194)
amazon
4.6
(92)

(Reviews last updated: May 2026)

Excellent
  • 9.4
    Movies

    Score components:

    25.0%

    10

    Dolby Atmos

    25.0%

    7.8

    N. of audio channels

    20.0%

    10

    Subwoofer included

    15.0%

    10

    Audio output power

    15.0%

    10

    HDMI ARC type

  • 9.6
    Gaming

    Score components:

    35.0%

    10

    HDMI pass-through frame rate

    30.0%

    10

    HDMI ARC type

    20.0%

    7.8

    N. of audio channels

    15.0%

    10

    Audio output power

  • 7.5
    Music

    Score components:

    20.0%

    10

    Audio output power

    20.0%

    10

    Subwoofer included

    20.0%

    4.0

    Equalizer bands

    15.0%

    1.0

    N. of supported Bluetooth codecs

    15.0%

    10

    Wi-Fi connectivity

    5.0%

    10

    Spotify Connect

    5.0%

    10

    Bluetooth connectivity

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Best rankings

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Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The LG SC9S is a 400W 3.1.3 channel soundbar system featuring the world’s first triple up-firing channels, including a dedicated up-firing center driver designed to enhance dialogue clarity and overhead spatial effects. It supports premium audio formats like Dolby Atmos, DTS:X, and IMAX Enhanced, and offers high-resolution audio up to 24-bit/96kHz. A major pro is its 'Synergy' design, which includes a dedicated bracket for seamless mounting with LG C2 and C3 OLED TVs, along with 'WOW Orchestra' technology that allows the soundbar to work in harmony with a TV's internal speakers. Performance highlights include a powerful 220W wireless subwoofer and advanced AI Room Calibration for optimized acoustics. However, potential cons include the lack of dedicated side-firing drivers for a wider surround stage and a limited LED interface that can be difficult to interpret without the companion app.

Technical Specifications of soundbar LG SC9

Technical Score

What it is: An assessment of the soundbar's technical performance, covering key areas such as audio quality, channel configuration, connectivity, HDMI and wireless features, and design.

When it matters: When you want to compare soundbars based on technical performance and available features.

Score components:

25.0%

9.1

Audio

18.0%

8.7

Formats

16.0%

8.4

Connectivity

14.0%

9.8

Controls

12.0%

9.6

HDMI & Gaming

10.0%

8.4

Smart features

5.0%

5.7

Design

8.8
LG SC9 has a technical score of 8.85 points, which is higher than that of 98.9% of products in this category.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the soundbar.

When it matters: When you want to know how a soundbar sounds in real use and how satisfied owners are with dialogue clarity, bass, and ease of setup.

Score components:

70.0%

8.7

User reviews

30.0%

7.0

Popularity

User score:
United Kingdom
amazon
4.2
(194)
amazon
4.6
(92)

(Reviews last updated: May 2026)

8.2
LG SC9 has a user score of 8.15 points, which is higher than that of 68.6% of products in this category.
Popularity
What it is: An indicator based on the number of reviews received by the soundbar.
When it matters: When you prefer to choose a soundbar reviewed and selected by many other buyers.
7.0
LG SC9 has a popularity of 7 points, which is higher than 64.9% of products in this category.
Ratio quality/price

What it is: An indicator that combines the soundbar's overall rating with its cost.

When it matters: When you are looking for a soundbar with a good balance between audio quality, features, and price.

Score components:

60.0%

8.7

Overall score

40.0%

9.0

Price

8.8
LG SC9 has a quality-to-price ratio of 8.8 points, which is higher than 100% of products in this category.
Brand name
What it is: The manufacturer or brand under which the soundbar is marketed and sold.
When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

Importance: MEDIUM

LG
N. of audio channels
What it is: Shows how many separate audio channels the system is built to reproduce, such as left, center, surround, height, and subwoofer channels.
When it matters: When you are deciding between a simpler bar and a setup built for wider surround placement, clearer center dialogue, or more immersive height effects.

Importance: HIGH

Good value: >=5.1

3.1.3
LG SC9 offers 3.1.3 audio channels, more than 91% of soundbars.
Audio output power
What it is: Total continuous or peak audio output power, measured in watts.
When it matters: When you need enough headroom to fill a larger room or listen at higher volume without the system feeling strained.

Importance: HIGH

Good value: >100 W

400 W
LG SC9 delivers 400 W of audio output power, more than 93.7% of soundbars and equal to 1.1% of soundbars.
Max SPL
What it is: Maximum sound pressure level output, measured in dB SPL.
When it matters: When you use the soundbar in a large room, listen at high volume, or want it to stay convincing during action-heavy movies and parties.

Importance: HIGH

Good value: >90 dB SPL

91.5 dB SPL
LG SC9 has a max SPL of 91.5 dB SPL, lower than 61% of soundbars.
Measured max-volume figure used over conflicting lower source.
Min frequency
What it is: Lowest reproducible audio frequency, measured in hertz.
When it matters: When deep bass extension matters and you want to know how low the system is supposed to reach.

Importance: HIGH

Good value: <50 Hz

33.2 Hz
LG SC9 reaches a minimum frequency of 33.2 Hz, lower than 83.8% of soundbars.
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Dolby Atmos
What it is: Means the soundbar can play Dolby Atmos soundtracks, which add height information on top of normal surround channels for a more three-dimensional presentation.
When it matters: When you watch a lot of movies or shows with Atmos tracks and want a more enveloping sense of space than standard surround usually provides.

Importance: HIGH

yes
LG SC9 supports Dolby Atmos. 20.6% of soundbars include this feature.
DTS:X
What it is: Can handle DTS:X object-based surround audio from compatible sources.
When it matters: When your library includes DTS:X content and you want the soundbar to reproduce its surround effects properly.

Importance: HIGH

yes
LG SC9 supports DTS:X. 10.6% of soundbars include this feature.
Dolby TrueHD
What it is: Can decode Dolby TrueHD, a lossless surround format often used on Blu-ray and higher-end local media setups.
When it matters: When you play disc-based or local media and want lossless Dolby audio support.

Importance: HIGH

yes
LG SC9 supports Dolby TrueHD. 17.6% of soundbars include this feature.
DTS-HD Master Audio
What it is: Can decode DTS-HD Master Audio, a lossless DTS format used on many Blu-ray releases.
When it matters: When your movie library includes discs or files with higher-quality DTS soundtracks.

Importance: HIGH

yes
LG SC9 supports DTS-HD Master Audio. 10.6% of soundbars include this feature.
Dolby Digital Plus
What it is: Can decode Dolby Digital Plus, a higher-efficiency surround format used widely by streaming services.
When it matters: When you stream movies and shows from modern apps that commonly deliver audio in Dolby Digital Plus.

Importance: MEDIUM

yes
LG SC9 supports Dolby Digital Plus. 25.5% of soundbars include this feature.
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N. of HDMI inputs
What it is: Number of HDMI input ports available.
When it matters: When several consoles, streamers, or players may need to plug into the soundbar directly.

Importance: HIGH

Good value: >=1

1
LG SC9 has 1 HDMI inputs, more than 68.1% of soundbars and equal to 27.1% of soundbars.
Wi-Fi connectivity
What it is: Can join a wireless network for streaming, app control, updates, and smart-platform features.
When it matters: When you want better streaming stability, direct app playback, or smart features beyond Bluetooth alone.

Importance: HIGH

yes
LG SC9 supports Wi-Fi connectivity. 31.7% of soundbars include this feature.
Wi-Fi version
What it is: Supported Wi-Fi version or standard (e.g., Wi-Fi 5, 6, 6E).
When it matters: When your network setup uses newer Wi-Fi standards and you want better compatibility or wireless stability.

Importance: HIGH

Good value: Wi-Fi 5/6

Wi-Fi 5
LG SC9 uses Wi-Fi Wi-Fi 5, which is newer than that of 71.9% of soundbars and the same as that of 23.4% of soundbars.
Bluetooth connectivity
What it is: Can receive audio wirelessly over Bluetooth from phones, tablets, computers, and other compatible sources.
When it matters: When you want fast casual streaming from nearby devices without relying on Wi-Fi setup.

Importance: MEDIUM

yes
LG SC9 supports Bluetooth connectivity. 96.3% of soundbars include this feature.
Bluetooth version
What it is: Supported Bluetooth specification version.
When it matters: When you care about newer Bluetooth efficiency, compatibility, and connection behavior with modern source devices.

Importance: MEDIUM

Good value: >=5.0

5.0
LG SC9 uses Bluetooth 5.0, which is newer than that of 38.5% of soundbars and the same as that of 47.8% of soundbars.
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Smartphone app
What it is: Can be configured or controlled through a dedicated mobile app.
When it matters: When you prefer changing inputs, updates, sound modes, or calibration settings from your phone.

Importance: HIGH

yes
LG SC9 has smartphone app. 34.9% of soundbars offer this feature.
Remote control
What it is: Comes with or supports a physical handheld remote for everyday operation.
When it matters: When you want quick volume, input, and sound-mode control without opening an app.

Importance: HIGH

yes
LG SC9 has remote control. 73.5% of soundbars offer this feature.
Control panel
What it is: Design and layout of the onboard control panel.
When it matters: When you want easier everyday control.

Importance: HIGH

yes
LG SC9 has control panel. 91.3% of soundbars offer this feature.
Voice assistant compatibility
What it is: Works with one or more voice-assistant platforms such as Alexa, Google Assistant, or Siri workflows.
When it matters: When voice control is part of how you start playback, change volume, or integrate the bar into smart-home routines.

Importance: MEDIUM

yes
LG SC9 supports voice assistant compatibility. 30.9% of soundbars include this feature.
Far-field microphones
What it is: Built-in far-field microphones for voice assistant use.
When it matters: When you want hands-free control or built-in voice features.

Importance: MEDIUM

no
LG SC9 does not have far-field microphones. 12.2% of soundbars offer this feature.
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HDMI version
What it is: Version of the HDMI standard supported for input/output.
When it matters: When you need the HDMI link to handle newer video, gaming, or audio-return features in your setup.

Importance: HIGH

Good value: 2.1

2.1
LG SC9 uses HDMI 2.1, which is newer than that of 89.8% of soundbars and the same as that of 10.2% of soundbars.
HDMI ARC type
What it is: Shows whether the soundbar uses ARC or eARC for TV audio over HDMI. ARC covers basic return audio, while eARC supports higher-bandwidth formats such as lossless Dolby Atmos and generally gives you more headroom for advanced TV-to-soundbar audio.
When it matters: When the TV will send sound back to the soundbar over HDMI and you care about getting the best audio formats your TV and streaming devices can pass through.

Importance: HIGH

Good value: eARC

eARC
LG SC9 has eARC as its HDMI TV-audio return type, which is more advanced than what 79.6% of soundbars and the same as what 20.5% offers.
HDMI-CEC support
What it is: Lets compatible devices share basic commands like power, volume, and input switching over HDMI.
When it matters: When you want simpler everyday use, such as controlling volume with the TV remote and having the soundbar turn on with the TV.

Importance: MEDIUM

yes
LG SC9 has HDMI-CEC support. 64.1% of soundbars offer this feature.
HDMI pass-through resolution
What it is: Maximum video resolution supported through HDMI pass-through.
When it matters: When you connect external players or consoles through the soundbar.

Importance: MEDIUM

4K
LG SC9 supports HDMI pass-through up to 4K, which is higher than that of 79% of soundbars and the same as that of 18% of soundbars.
Up to 4K/120 pass-through.
HDMI pass-through frame rate
What it is: Maximum frame rate supported for HDMI pass-through.
When it matters: When you connect gaming devices through the soundbar.

Importance: MEDIUM

Good value: >=120 fps

120 fps
LG SC9 supports HDMI pass-through up to 120 fps, higher than 96.9% of soundbars and equal to 3.1% of soundbars.
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AirPlay
What it is: Supports Apple AirPlay or AirPlay 2 for network-based streaming from Apple devices and apps.
When it matters: When your home setup is built around Apple devices and you want smooth wireless playback across that ecosystem.

Importance: HIGH

yes
LG SC9 supports AirPlay. 20.1% of soundbars include this feature.
Chromecast built-in
What it is: Includes Chromecast so audio can be cast directly from compatible apps over Wi-Fi.
When it matters: When you want quick app-based casting from Android, Chrome, or supported streaming services without Bluetooth pairing.

Importance: HIGH

yes
LG SC9 supports Chromecast built-in. 11.7% of soundbars include this feature.
Supports Chromecast built-in.
Spotify Connect
What it is: Can receive Spotify streams directly over the network without routing playback through your phone over Bluetooth.
When it matters: When you use Spotify often and want your phone free for calls, battery, or other apps while music keeps playing.

Importance: MEDIUM

yes
LG SC9 supports Spotify Connect. 22.9% of soundbars include this feature.
TIDAL Connect
What it is: Can receive TIDAL streams directly over the network without using Bluetooth from the phone as the audio path.
When it matters: When you use TIDAL regularly and want direct streaming with less dependence on your phone staying involved.

Importance: MEDIUM

yes
LG SC9 supports TIDAL Connect. 7.6% of soundbars include this feature.
Amazon Music native support
What it is: Native integration with Amazon Music service.
When it matters: When you stream music directly from apps and ecosystems you already use.

Importance: MEDIUM

no
LG SC9 does not have Amazon Music native support. 20.9% of soundbars offer this feature.
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Width
What it is: Overall width of the soundbar.
When it matters: When you want the bar to match the TV size better or fit a narrow cabinet cleanly.

Importance: HIGH

975 mm
LG SC9 is 975 mm wide, wider than 84.7% of soundbars.
Height
What it is: Overall height of the soundbar.
When it matters: When clearance under the TV is limited and you do not want the bar covering the lower edge of the picture.

Importance: HIGH

Good value: <70 mm

63 mm
LG SC9 is 63 mm high, shorter than 67% of soundbars and equal to 3.8% of soundbars.
Thickness
What it is: The front-to-back depth of the soundbar body.
When it matters: When you need the soundbar to fit neatly on furniture, under the TV, or close to the wall without sticking out too much.

Importance: MEDIUM

Good value: <90 mm

125 mm
LG SC9 is 125 mm thick, thicker than 85.4% of soundbars and equal to 2.3% of soundbars.
Weight
What it is: Total weight of the soundbar unit.
When it matters: When wall mounting, shelf strength, or how easy the bar is to move and position matters.

Importance: MEDIUM

4,100 g
LG SC9 weighs 4,100 g, more than 87% of soundbars.
Build material
What it is: Material used for cabinet or body construction.
When it matters: When finish quality, cabinet feel, and how premium the bar looks in the room matter to you.

Importance: MEDIUM

plastic, aluminum
LG SC9 uses plastic, aluminum for the build material, which is different from that of 97.2% of soundbars and the same as that of 0.6% of soundbars.
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LG SC9 vs the average soundbar

  • More audio channels
    LG SC9 has more audio channels than the average soundbar (3.1.3 vs 2.0). The average soundbar has 2.0 audio channels.
    What it is: Shows how many separate audio channels the system is built to reproduce, such as left, center, surround, height, and subwoofer channels.
    When it matters: When you are deciding between a simpler bar and a setup built for wider surround placement, clearer center dialogue, or more immersive height effects.

    Importance: HIGH

    Good value: >=5.1

    LG SC9 has more audio channels than the average soundbar (3.1.3 vs 2.0). The average soundbar has 2.0 audio channels.3.1.3 vs 2.0
  • 1 more HDMI inputs
    LG SC9 has more HDMI inputs than the average soundbar (1 vs 0). The average soundbar has 0 HDMI inputs.
    What it is: Number of HDMI input ports available.
    When it matters: When several consoles, streamers, or players may need to plug into the soundbar directly.

    Importance: HIGH

    Good value: >=1

    LG SC9 has more HDMI inputs than the average soundbar (1 vs 0). The average soundbar has 0 HDMI inputs.1 vs 0
  • Supports Dolby Atmos
    LG SC9 supports Dolby Atmos, the average soundbar does not.
    What it is: Means the soundbar can play Dolby Atmos soundtracks, which add height information on top of normal surround channels for a more three-dimensional presentation.
    When it matters: When you watch a lot of movies or shows with Atmos tracks and want a more enveloping sense of space than standard surround usually provides.

    Importance: HIGH

    LG SC9 supports Dolby Atmos, the average soundbar does not.
  • Supports center channel driver
    LG SC9 has center channel driver, the average soundbar does not.
    What it is: Uses a dedicated center-channel driver intended to anchor dialogue and center-screen effects more clearly.
    When it matters: When dialogue clarity is important and you want voices locked more firmly to the center of the screen.

    Importance: MEDIUM

    LG SC9 has center channel driver, the average soundbar does not.
  • Supports DTS:X
    LG SC9 supports DTS:X, the average soundbar does not.
    What it is: Can handle DTS:X object-based surround audio from compatible sources.
    When it matters: When your library includes DTS:X content and you want the soundbar to reproduce its surround effects properly.

    Importance: HIGH

    LG SC9 supports DTS:X, the average soundbar does not.
  • Supports DTS-HD Master Audio
    LG SC9 supports DTS-HD Master Audio, the average soundbar does not.
    What it is: Can decode DTS-HD Master Audio, a lossless DTS format used on many Blu-ray releases.
    When it matters: When your movie library includes discs or files with higher-quality DTS soundtracks.

    Importance: HIGH

    LG SC9 supports DTS-HD Master Audio, the average soundbar does not.
  • Includes subwoofer
    LG SC9 has subwoofer included, the average soundbar does not.
    What it is: Means the soundbar comes with a separate subwoofer for deeper bass instead of relying only on the bar's built-in drivers.
    When it matters: When you want movies, music, and games to have stronger low-end weight without having to add a subwoofer later.

    Importance: MEDIUM

    LG SC9 has subwoofer included, the average soundbar does not.
  • 3.06 inch higher subwoofer driver size
    LG SC9 has a higher subwoofer driver size than the average soundbar (7 inch vs 3.94 inch). The average soundbar uses a subwoofer driver size of 3.94 inch.
    What it is: Diameter or dimension of subwoofer driver.
    When it matters: When you want a rough hardware clue about how much bass presence the bundled subwoofer may be designed to deliver.

    Importance: MEDIUM

    Good value: >=5 inch

    LG SC9 has a higher subwoofer driver size than the average soundbar (7 inch vs 3.94 inch). The average soundbar uses a subwoofer driver size of 3.94 inch.7 inch vs 3.94 inch
  • More audio channels
    LG SC9 has more audio channels than the average soundbar (3.1.3 vs 2.0). The average soundbar has 2.0 audio channels.
  • Supports center channel driver
    LG SC9 has center channel driver, the average soundbar does not.
  • Includes subwoofer
    LG SC9 has subwoofer included, the average soundbar does not.
  • 3.06 inch higher subwoofer driver size
    LG SC9 has a higher subwoofer driver size than the average soundbar (7 inch vs 3.94 inch). The average soundbar uses a subwoofer driver size of 3.94 inch.
  • 5 more drivers
    LG SC9 has more drivers than the average soundbar (9 vs 4). The average soundbar has 4 drivers.
  • Supports upfiring speakers
    LG SC9 supports upfiring speakers, the average soundbar does not.
  • 5.71x higher audio output power
    LG SC9 has a higher audio output power than the average soundbar (400 W vs 70 W). The average soundbar delivers 70 W of audio output power.
  • Compatible with Wireless rear speaker
    LG SC9 supports wireless rear speaker compatibility, the average soundbar does not.
  • Supports bass boost
    LG SC9 supports bass boost, the average soundbar does not.
  • 5 more sound modes
    LG SC9 offers more sound modes than the average soundbar (9 vs 4). The average soundbar offers 4 sound modes.
  • 17.9 Hz lower min frequency
    LG SC9 has a lower minimum frequency than the average soundbar (33.2 Hz vs 51.1 Hz). The average soundbar has a minimum frequency of 51.1 Hz.
  • Includes wall-mount kit
    LG SC9 has wall-mount kit included, the average soundbar does not.
  • 1 more equalizer bands
    LG SC9 offers more equalizer bands than the average soundbar (3 vs 2). The average soundbar offers 2 equalizer bands.
  • Supports Dolby Atmos
    LG SC9 supports Dolby Atmos, the average soundbar does not.
  • Supports DTS:X
    LG SC9 supports DTS:X, the average soundbar does not.
  • Supports DTS-HD Master Audio
    LG SC9 supports DTS-HD Master Audio, the average soundbar does not.
  • Supports Dolby TrueHD
    LG SC9 supports Dolby TrueHD, the average soundbar does not.
  • Supports Dolby Digital Plus
    LG SC9 supports Dolby Digital Plus, the average soundbar does not.
  • Supports IMAX Enhanced
    LG SC9 supports IMAX Enhanced, the average soundbar does not.
  • Broader format support
    LG SC9 supports more music formats than the average soundbar (AAC, FLAC, MP3, MQA, OGG, WAV vs MP3).
  • 4 more supported audio formats
    LG SC9 supports more audio formats than the average soundbar (6 vs 2). The average soundbar supports 2 audio formats.
  • Supports AAC
    LG SC9 supports AAC, the average soundbar does not.
  • 1 more HDMI inputs
    LG SC9 has more HDMI inputs than the average soundbar (1 vs 0). The average soundbar has 0 HDMI inputs.
  • Has Wi-Fi connectivity
    LG SC9 supports Wi-Fi connectivity, the average soundbar does not.
  • Higher HDMI pass-through frame rate
    LG SC9 has a higher HDMI pass-through frame rate than the average soundbar (120 fps vs none fps). The average soundbar supports an HDMI pass-through frame rate of none fps.
  • Supports auto Low Latency Mode (ALLM)
    LG SC9 supports auto Low Latency Mode (ALLM), the average soundbar does not.
  • Supports HDR pass-through
    LG SC9 supports hDR pass-through support, the average soundbar does not.
  • Supports variable Refresh Rate (VRR)
    LG SC9 supports variable Refresh Rate (VRR), the average soundbar does not.
  • Higher pass-through resolution
    LG SC9 supports 4K for HDMI pass-through resolution, while the average soundbar supports none.
  • Newer HDCP version
    LG SC9 uses 2.3 for HDCP version, while the average soundbar uses none.
  • Supports Chromecast built-in
    LG SC9 supports Chromecast built-in, the average soundbar does not.
  • Supports AirPlay
    LG SC9 supports AirPlay, the average soundbar does not.
  • Supports Spotify Connect
    LG SC9 supports Spotify Connect, the average soundbar does not.
  • Supports multiroom ecosystem
    LG SC9 supports multiroom ecosystem support, the average soundbar does not.
  • Supports TIDAL Connect
    LG SC9 supports tIDAL Connect, the average soundbar does not.
  • Supports automatic room calibration
    LG SC9 supports automatic room calibration, the average soundbar does not.
  • Has smartphone app
    LG SC9 supports smartphone app, the average soundbar does not.
  • Supports auto volume leveling
    LG SC9 supports auto volume leveling, the average soundbar does not.
  • Has EQ customization (app)
    LG SC9 supports eQ customization (app), the average soundbar does not.
  • Compatible with Voice assistant
    LG SC9 supports voice assistant compatibility, the average soundbar does not.
  • Supports manual audio delay adjustment
    LG SC9 supports manual audio delay adjustment, the average soundbar does not.
  • Supports night mode
    LG SC9 supports night mode, the average soundbar does not.
  • Easier firmware updates
    LG SC9 uses over-the-air, app-based for firmware update method, while the average soundbar uses app-based.
  • Premium build material
    LG SC9 uses plastic, aluminum for build materials, while the average soundbar uses plastic.
  • 2 years newer release
    LG SC9 is newer than the average soundbar (2023 vs 2021). The average soundbar was released in 2021.
  • 4 mm lower height
    LG SC9 is shorter than the average soundbar (63 mm vs 67 mm). The average soundbar is 67 mm tall.
  • Lower bass adjustment range
    LG SC9 has a lower bass adjustment range than the average soundbar (-5 to 5 dB vs -100 to 100 dB). The average soundbar offers a bass adjustment range of -100 to 100 dB.
  • 100 Hz lower max frequency
    LG SC9 has a lower maximum frequency than the average soundbar (19,900 Hz vs 20,000 Hz). The average soundbar has a maximum frequency of 20,000 Hz.
    Measured high-frequency extension used; 96 kHz sampling-rate figure ignored.
  • Unbalanced impedance
    LG SC9 has impedance of 4 + 3 Ω, while the average soundbar has 6 Ω.
  • 1.6 dB SPL lower max SPL
    LG SC9 has a lower max SPL than the average soundbar (91.5 dB SPL vs 93.1 dB SPL). The average soundbar reaches 93.1 dB SPL max SPL.
    Measured max-volume figure used over conflicting lower source.
  • 2.5x higher max power consumption
    LG SC9 has a higher max power consumption than the average soundbar (75 W vs 30 W). The average soundbar uses 30 W at maximum power.
  • No AUX input
    LG SC9 does not have AUX input, the average soundbar does.
    no
  • 4 ms higher gaming latency
    LG SC9 has a higher gaming mode latency than the average soundbar (64 ms vs 60 ms). The average soundbar has gaming mode latency of 60 ms.
    Via HDMI input gaming path.
  • 214 mm wider width
    LG SC9 is wider than the average soundbar (975 mm vs 761 mm). The average soundbar is 761 mm wide.
  • 40 mm thicker design
    LG SC9 is thicker than the average soundbar (125 mm vs 85 mm). The average soundbar is 85 mm thick.
  • 2,100 g heavier weight
    LG SC9 is heavier than the average soundbar (4,100 g vs 2000 g). The average soundbar weighs 2000 g.
  • No AUX input
    LG SC9 does not have AUX input, the average soundbar does.
    no
    What it is: Includes a 3.5 mm analog input for connecting older devices or simple wired audio sources.
    When it matters: When a TV, projector, music player, or other source still relies on analog audio output.

    Importance: LOW

    LG SC9 does not have AUX input, the average soundbar does.
  • 214 mm wider width
    LG SC9 is wider than the average soundbar (975 mm vs 761 mm). The average soundbar is 761 mm wide.
    What it is: Overall width of the soundbar.
    When it matters: When you want the bar to match the TV size better or fit a narrow cabinet cleanly.

    Importance: HIGH

    LG SC9 is wider than the average soundbar (975 mm vs 761 mm). The average soundbar is 761 mm wide.975 mm vs 761 mm
  • Lower bass adjustment range
    LG SC9 has a lower bass adjustment range than the average soundbar (-5 to 5 dB vs -100 to 100 dB). The average soundbar offers a bass adjustment range of -100 to 100 dB.
    What it is: Range of bass adjustment in decibels.
    When it matters: When you want to fine-tune how much low-end weight the system adds in your room.

    Importance: LOW

    LG SC9 has a lower bass adjustment range than the average soundbar (-5 to 5 dB vs -100 to 100 dB). The average soundbar offers a bass adjustment range of -100 to 100 dB.-5 to 5 dB vs -100 to 100 dB
  • 40 mm thicker design
    LG SC9 is thicker than the average soundbar (125 mm vs 85 mm). The average soundbar is 85 mm thick.
    What it is: The front-to-back depth of the soundbar body.
    When it matters: When you need the soundbar to fit neatly on furniture, under the TV, or close to the wall without sticking out too much.

    Importance: MEDIUM

    Good value: <90 mm

    LG SC9 is thicker than the average soundbar (125 mm vs 85 mm). The average soundbar is 85 mm thick.125 mm vs 85 mm
  • 2,100 g heavier weight
    LG SC9 is heavier than the average soundbar (4,100 g vs 2000 g). The average soundbar weighs 2000 g.
    What it is: Total weight of the soundbar unit.
    When it matters: When wall mounting, shelf strength, or how easy the bar is to move and position matters.

    Importance: MEDIUM

    LG SC9 is heavier than the average soundbar (4,100 g vs 2000 g). The average soundbar weighs 2000 g.4100 g vs 2000 g
  • 100 Hz lower max frequency
    LG SC9 has a lower maximum frequency than the average soundbar (19,900 Hz vs 20,000 Hz). The average soundbar has a maximum frequency of 20,000 Hz.
    Measured high-frequency extension used; 96 kHz sampling-rate figure ignored.
    What it is: Highest reproducible audio frequency, measured in hertz.
    When it matters: When you care about how far the system extends into the upper treble for effects, detail, and sparkle.

    Importance: HIGH

    Good value: >=20000 Hz

    LG SC9 has a lower maximum frequency than the average soundbar (19,900 Hz vs 20,000 Hz). The average soundbar has a maximum frequency of 20,000 Hz.19900 Hz vs 20000 Hz
  • Unbalanced impedance
    LG SC9 has impedance of 4 + 3 Ω, while the average soundbar has 6 Ω.
    What it is: Speaker impedance, measured in ohms.
    When it matters: When you are comparing driver or amplifier design details and want one more hardware indicator beyond marketing specs.

    Importance: LOW

    LG SC9 has impedance of 4 + 3 Ω, while the average soundbar has 6 Ω.4 + 3 Ω vs 6 Ω
  • 2.95x more expensive
    LG SC9 is more expensive than the average soundbar (£280 vs £95).
    LG SC9 is more expensive than the average soundbar (£280 vs £95).£280 vs £95

Graphic comparison of LG SC9 and other soundbars

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Third-party reviews

(Reviews last updated: May 2026)

What customers like about LG SC9?

  • Exceptional dialogue clarity due to the unique triple up-firing center channel
  • Seamless physical and software integration with LG C2 and C3 OLED TVs via the included 'WOW Bracket'
  • Powerful and deep bass response from the included wireless subwoofer
  • Extensive sound customization and calibration options through the LG Soundbar app
  • Support for high-end audio formats including Dolby Atmos, DTS:X, and IMAX Enhanced
  • Convenient 'WOW Orchestra' feature that synchronizes the soundbar with compatible LG TV speakers for a larger soundstage

What customers dislike about LG SC9?

  • Lack of native surround sound immersion; requires an additional purchase of rear speakers for a true 5.1 experience
  • Glaring lack of mid-range frequencies, which can make some content sound 'thin' or 'tinny'
  • Limited stereo soundstage width compared to competitors like the Sonos Arc
  • Annoying blinking LED indicator when the unit is muted
  • Some users report glitchy app connectivity and occasional audio lag when using WOW Orchestra
  • UI limitations such as the lack of a text-based volume indicator on the bar itself

Expert reviews

E
expertreviews.co.uk
25/08/2023
Summary of the review
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whathifi.com
09/06/2023
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rtings.com
09/05/2023
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S
senses.se
27/01/2024
Summary of the review
A
avforums.com
03/11/2023
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R
reviewed.com
13/09/2023
Summary of the review
W
whathifi.com
09/06/2023
Summary of the review
W
wired.com
22/11/2023
Summary of the review
T
t3.com
20/07/2023
Summary of the review
A
av-magazin.de
01/05/2023
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E
ericzaccaron.com
01/08/2023
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C
cnetfrance.fr
05/07/2023
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S
son-video.com
04/01/2025
Summary of the review
M
maisonadam.ca
03/08/2023
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L
lesnumeriques.com
12/01/2024
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leclaireur.fnac.com
19/06/2024
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F
frandroid.com
11/04/2023
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D
dday.it
17/07/2023
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tech.everyeye.it
10/08/2023
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R
review.nl
11/09/2023
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F
fwd.nl
05/08/2023
Summary of the review
E
expert.nl
15/09/2023
Summary of the review

Video reviews

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