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Sonos Beam (Gen 2) vs Polk Audio Signa S4
Side-by-Side Comparison
Products
Sonos Beam (Gen 2)
Polk Audio Signa S4
Tested using Methodology v1.3
Updated May 12, 2025 07:14 PM
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Amazon.comTested using Methodology v1.3
Updated May 12, 2025 06:54 PM
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Samsung.com
Channels5.0
Channels3.1.2
Variants
- Beam (Gen 2) (Black)
- Sonos Beam (Gen 2) (White)
- Signa S4 (Black)
- Signa S4D (Black)
Our Verdict
Sonos Beam (Gen 2)
Polk Audio Signa S4
The Sonos Beam (Gen 2) is better than the Polk Audio Signa S4. The Sonos is a 5.0 setup with a small, compact design and is ideal if you don't have a lot of space. Despite its small size, it has better soundstage and surround performances than the Polk. It also has additional features, like room correction and built-in voice assistant support.
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Black
Beam (Gen 2)
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Signa S4
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Sonos Beam (Gen 2)
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Signa S4D
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Finding storeMain Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
7.4
6.9
Surround 5.1
5.9
3.4
Stereo Soundstage
8.0
7.0
Full Comparison
Design
Style - Bar
Style photo - bar
Style - Subwoofer
Style photo - sub
Sub Wireless
No
Yes
Enclosure
No Subwoofer
Ported
Style - Satellites
Style photo - satellites
Satellite Wireless
No
No
Dimensions - Bar
Dimensions photo - bar
Width
25.6" (65.0 cm)
41.1" (104.5 cm)
Height
2.6" (6.7 cm)
2.4" (6.0 cm)
Depth
4.0" (10.1 cm)
3.7" (9.5 cm)
Dimensions - Subwoofer
Dimensions photo - sub
Width
N/A
7.9" (20.0 cm)
Height
N/A
12.9" (32.7 cm)
Depth
N/A
11.0" (28.0 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
No
No
Mountable Satellites
No
No
Satellite Brackets Included
No
No
Build Quality
8.5
7.0
Build quality photo
In The Box
In The Box photo
Sound
Stereo Frequency Response
7.4
7.3
Stereo Setup
Raw Frequency Response
Frequency Response Small
Channels
5.0
3.1.2
Tested Preset
No Preset
Music
Slope
-0.56
-0.83
Standard Error
2.82 dB
3.32 dB
Low-Frequency Extension
50.4 Hz
47.6 Hz
High-Frequency Extension
16.7 kHz
16.7 kHz
Stereo Frequency Response With Preliminary Calibration
7.4
7.4
Frequency Response Calibrated
Suggested Preset
No Preset
Music
Suggested Bass Setting
-3
-3
Suggested Treble Setting
2
N/A
Slope
0.05
-0.15
Standard Error
2.66 dB
2.69 dB
Low-Frequency Extension
51.9 Hz
49.7 Hz
High-Frequency Extension
17.2 kHz
17.0 kHz
Stereo Soundstage
8.0
7.0
Crosstalk Error
2.32 dB
1.83 dB
Stereo Dynamics
7.1
7.0
Dynamic Range Compression
SPL @ Max Volume
88.8 dB SPL
87.5 dB SPL
DRC @ 90dB
N/A
N/A
DRC @ Max Volume
1.70 dB
1.10 dB
Center
7.4
7.5
Center Setup
Frequency Response
Localization
Discrete
Discrete
Slope
0.24
-0.92
Std. Err.
3.73 dB
4.35 dB
SPL @ Max Volume
72.3 dB SPL
84.0 dB SPL
Weighted THD @ 80dB
0.63
0.97
Weighted THD @ Max Volume
1.54
2.25
Surround 5.1
5.9
3.4
Surround Setup
Frequency Response
Localization
Phantom (Front Firing and Side Firing, Bar)
Stereo (Downmix)
Slope
-0.56
-1.69
Std. Err.
2.79 dB
4.58 dB
SPL @ Max Volume
70.4 dB SPL
86.2 dB SPL
Weighted THD @ 80dB
0.38
0.95
Weighted THD @ Max Volume
0.87
2.59
7.1 Rears
No
No
Height (Atmos)
5.7
5.8
Height Setup
H Frequency Response
Localization
Phantom (Front Firing, Bar)
Phantom (Up Firing, Bar)
Slope
1.01
-1.33
Std. Err.
3.35 dB
4.72 dB
SPL @ Max Volume
59.2 dB SPL
83.6 dB SPL
Weighted THD @ 80dB
1.45
0.70
Weighted THD @ Max Volume
0.30
0.95
Sound Enhancement Features
5.4
4.5
Room Correction
Yes
No
Dialogue Enhancement
Yes
Yes
Auto-Volume/Night Mode
Yes
Yes
Subwoofer Level Adjustment
No
No
Bass Adjustment
Yes
Yes
Treble Adjustment
Yes
No
EQ
No
Presets
Surround Level Adjustment
No
No
Rear Level Adjustment
No
No
Height Level Adjustment
No
No
Virtual Surround
No
No
Connectivity
Inputs/Outputs - Bar
Physical Connections Bar Photo 1
Physical Connections Bar Photo 2
Optical Audio In
Adapter into HDMI ARC
1
HDMI Out
eARC
eARC
HDMI 2.1 Class Bandwidth
No
No
Full HDMI In
No
No
Analog Audio In 3.5mm (Aux)
No
1
RCA In
No
No
USB for Files
No
1
Ethernet
1
No
Subwoofer Output
No
No
Audio Format Support: ARC/eARC
9.6
8.1
Dolby Atmos
Supported
Supported
Dolby Digital
Supported
Supported
Dolby Digital Plus
Supported
Supported
Dolby TrueHD
Supported
Supported
DTS
Supported
Not Supported
DTS:X
Not Supported
Not Supported
DTS-HD MA
Not Supported
Not Supported
PCM Channels
Up To 7.1
Up To 7.1
Audio Format Support: HDMI In
0.0
0.0
Dolby Atmos
Not Supported
Not Supported
Dolby Digital
Not Supported
Not Supported
Dolby Digital Plus
Not Supported
Not Supported
Dolby TrueHD
Not Supported
Not Supported
DTS
Not Supported
Not Supported
DTS:X
Not Supported
Not Supported
DTS-HD MA
Not Supported
Not Supported
PCM Channels
Not Supported
Not Supported
Audio Format Support: Optical
10
6.5
Dolby Digital
Supported
Supported
DTS
Supported
Not Supported
PCM Channels
2.0
2.0
Audio Latency: ARC
7.3
8.1
ARC Latency Video
PCM-2.0 ch
61 ms
87 ms
PCM-5.1 ch
61 ms
88 ms
Dolby MAT (PCM) Atmos
79 ms
73 ms
Dolby Digital
111 ms
94 ms
Dolby Digital Plus
121 ms
97 ms
Dolby Digital Plus Atmos
121 ms
102 ms
Audio Latency: HDMI In
0.0
0.0
HDMI Latency Video
PCM-2.0 ch
N/A
N/A
PCM-5.1 ch
N/A
N/A
Dolby MAT (PCM) Atmos
N/A
N/A
Dolby Digital
N/A
N/A
Dolby Digital Plus
N/A
N/A
Dolby Digital Plus Atmos
N/A
N/A
Audio Latency: Optical
7.8
6.3
Optical Latency Video
PCM-2.0 ch
119 ms
140 ms
Dolby Digital
180 ms
386 ms
Video Passthrough To TV
0.0
0.0
1080p Max Refresh Rate
Not Supported
Not Supported
1080p @ 4:4:4 Max Refresh Rate
Not Supported
Not Supported
4k Max Refresh Rate
Not Supported
Not Supported
4k @ 120Hz @ 10-Bit
Not Supported
Not Supported
4k @ 4:4:4 Max Refresh Rate
Not Supported
Not Supported
8k Max Refresh Rate
Not Supported
Not Supported
HDR10 Passthrough
No
No
HDR10+ Passthrough
No
No
Dolby Vision Passthrough
No
No
HDMI Forum VRR Passthrough
No
No
FreeSync Passthrough
No
No
G-SYNC Passthrough
No
No
ALLM Passthrough
No
No
Wireless Playback
3.0
6.0
Bluetooth
No
Yes
Wi-Fi Playback
Yes
No
Chromecast built-in
No
No
Apple AirPlay
Yes
No
Spotify Connect
Yes
No
Additional Features
Interface
Interface photo
Display
No
No
Bar Controls
Controls photo
Remote
Remote photo
Voice Assistants Support
Amazon Alexa
Yes (Built-in)
No
Google Assistant
Yes (Built-in)
No
Apple Siri
No
No
Microphone Mute
Yes
No
Check Price
Black
Beam (Gen 2)
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Signa S4
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Finding storeWhite
Sonos Beam (Gen 2)
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Signa S4D
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Finding store
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Sonos Beam (Gen 2)
Polk Audio Signa S4
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Sonos Beam (Gen 2) vs Polk Audio Signa S4: Main Discussion
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