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LG S75Q vs LG S77S
Side-by-Side Comparison
Products
LG S75Q
LG S77S
Tested using Methodology v1.2
Updated Jun 13, 2024 07:54 PM
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Updated Nov 01, 2023 06:07 PM
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Channels3.1.2
Channels3.1.3
Variants
- S75Q (Black)
- S77S (Black)
Our Verdict
LG S75Q
LG S77S
The LG S77S is a Costco-exclusive alternative to the LG S75Q. The S77S has a different design with more rounded edges that may appeal to some users over others. Its sound performance is pretty similar, though its soundstage isn't quite as good with stereo content. On the upside, the S77S adds more video passthrough support, including for 4k content at 120Hz.
Main Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
7.3
7.3
Full Comparison
Design
Style - Bar
Style photo - bar
Style - Subwoofer
Style photo - sub
Sub Wireless
Yes
Yes
Enclosure
Ported
Ported
Style - Satellites
Style photo - satellites
Satellite Wireless
No
No
Dimensions - Bar
Dimensions photo - bar
Width
35.0" (89.0 cm)
35.0" (89.0 cm)
Height
2.5" (6.4 cm)
2.4" (6.2 cm)
Depth
4.7" (12.0 cm)
5.0" (12.7 cm)
Dimensions - Subwoofer
Dimensions photo - sub
Width
7.1" (18.1 cm)
7.6" (19.4 cm)
Height
15.4" (39.2 cm)
14.1" (35.7 cm)
Depth
11.5" (29.2 cm)
10.8" (27.5 cm)
Dimensions - Satellites
Dimensions photo - satellites
Width
N/A
N/A
Height
N/A
N/A
Depth
N/A
N/A
Mounting
Bar Mounting Holes
Satellite Mounting Holes
Mountable Bar
Yes
Yes
Bar Brackets Included
Yes
Yes
Mountable Satellites
No
No
Satellite Brackets Included
No
No
Build Quality
7.5
7.5
Build quality photo
In The Box
In The Box photo
Sound
Stereo Frequency Response
7.1
7.3
Stereo Setup
Raw Frequency Response
Frequency Response Small
Tested Preset
Standard
Standard
Slope
-0.88
0.38
Std. Err.
4.27 dB
3.70 dB
Channels
3.1.2
3.1.3
Low-Frequency Extension
47.6 Hz
46.2 Hz
High-Frequency Extension
18.8 kHz
19.9 kHz
Stereo Frequency Response With Preliminary Calibration
7.4
7.5
Frequency Response Calibrated
Suggested Preset
Standard
Standard
Suggested Bass Setting
0
1
Suggested Treble Setting
5
0
Slope
-0.05
0.02
Std. Err.
3.27 dB
3.03 dB
Low-Frequency Extension
47.6 Hz
45.6 Hz
High-Frequency Extension
19.9 kHz
19.3 kHz
Stereo Soundstage
7.0
6.5
Crosstalk Error
2.63 dB
2.85 dB
Stereo Dynamics
8.2
7.7
Dynamic Range Compression
SPL @ Max Volume
94.9 dB SPL
94.6 dB SPL
DRC @ Max Volume
1.21 dB
2.19 dB
Stereo Total Harmonic Distortion
7.2
7.5
Weighted THD @ 80dB
0.60
0.44
Weighted THD @ Max Volume
2.72
2.86
Center
7.6
7.5
Center Setup
Frequency Response
Localization
Discrete
Discrete
Slope
-1.10
2.27
Std. Err.
4.45 dB
5.14 dB
SPL @ Max Volume
90.1 dB SPL
92.9 dB SPL
Weighted THD @ 80dB
0.75
1.07
Weighted THD @ Max Volume
4.63
4.09
Surround 5.1
3.9
4.2
Surround Setup
Frequency Response
Localization
Stereo (Downmix)
Stereo (Downmix)
Slope
-1.16
0.55
Std. Err.
4.27 dB
3.53 dB
SPL @ Max Volume
94.7 dB SPL
96.2 dB SPL
Weighted THD @ 80dB
0.49
0.48
Weighted THD @ Max Volume
2.49
2.92
7.1 Rears
No
No
Height (Atmos)
4.4
5.6
Height Setup
H Frequency Response
Localization
Phantom (Up Firing, Bar)
Phantom (Up Firing, Bar)
Slope
1.33
-0.23
Std. Err.
8.09 dB
4.41 dB
SPL @ Max Volume
79.7 dB SPL
75.6 dB SPL
Weighted THD @ 80dB
3.34
3.46
Weighted THD @ Max Volume
0.53
0.32
Sound Enhancement Features
7.1
7.1
Room Correction
No
No
Dialogue Enhancement
Yes
Yes
Auto-Volume/Night Mode
Yes
Yes
Subwoofer Level Adjustment
Yes
Yes
Bass Adjustment
Yes
Yes
Treble Adjustment
Yes
Yes
EQ
Presets
Presets
Surround Level Adjustment
No
No
Rear Level Adjustment
No
No
Height Level Adjustment
Yes
Yes
Virtual Surround
Yes
Yes
Connectivity
Inputs/Outputs - Bar
Physical Connections Bar Photo 1
Physical Connections Bar Photo 2
Optical Audio In
1
1
HDMI Out
eARC
eARC
HDMI 2.1 Class Bandwidth
No
No
Full HDMI In
1
1
Analog Audio In 3.5mm (Aux)
No
No
RCA In
No
No
USB for Files
1
1
Ethernet
No
No
Subwoofer Output
No
No
Audio Format Support: ARC/eARC
10
10
Dolby Atmos
Supported
Supported
Dolby Digital
Supported
Supported
Dolby Digital Plus
Supported
Supported
Dolby TrueHD
Supported
Supported
DTS
Supported
Supported
DTS:X
Supported
Supported
DTS-HD MA
Supported
Supported
PCM Channels
Up To 7.1
Up To 7.1
Audio Format Support: HDMI In
10
10
Dolby Atmos
Supported
Supported
Dolby Digital
Supported
Supported
Dolby Digital Plus
Supported
Supported
Dolby TrueHD
Supported
Supported
DTS
Supported
Supported
DTS:X
Supported
Supported
DTS-HD MA
Supported
Supported
PCM Channels
Up To 7.1
Up To 7.1
Audio Format Support: Optical
10
10
Dolby Digital
Supported
Supported
DTS
Supported
Supported
PCM Channels
2.0
2.0
Latency
8.0
8.6
Latency Video
ARC
75 ms
56 ms
Optical
78 ms
51 ms
Full HDMI In
15 ms
19 ms
Video Passthrough To TV
6.3
9.0
1080p Max Refresh Rate
60Hz
120Hz
1080p @ 4:4:4 Max Refresh Rate
60Hz
120Hz
4k Max Refresh Rate
60Hz
120Hz
4k @ 120Hz @ 10-Bit
Not Supported
Not Supported
4k @ 4:4:4 Max Refresh Rate
60Hz
60Hz
8k Max Refresh Rate
Not Supported
30Hz
HDR10 Passthrough
Yes
Yes
HDR10+ Passthrough
No
Yes
Dolby Vision Passthrough
Yes
Yes
HDMI Forum VRR Passthrough
No
Yes
FreeSync Passthrough
No
No
G-SYNC Passthrough
No
No
ALLM Passthrough
No
Yes
Wireless Playback
6.0
6.0
Bluetooth
Yes
Yes
Wi-Fi Playback
No
No
Chromecast built-in
No
No
Apple AirPlay
No
No
Spotify Connect
No
No
Additional Features
Interface
Interface photo
Display
Yes
No
Bar Controls
Controls photo
Remote
Remote photo
Voice Assistants Support
Amazon Alexa
No
No
Google Assistant
No
No
Apple Siri
No
No
Microphone Mute
No
No
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LG S75Q
LG S77S
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LG S75Q vs LG S77S: Main Discussion
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