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Sonos Beam vs Polk Audio Signa S2
Side-by-Side Comparison
Products
Sonos Beam
Polk Audio Signa S2
Tested using Methodology v1.2
Updated Apr 09, 2024 02:27 PM
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Amazon.comTested using Methodology v1.1
Updated May 09, 2025 01:09 PM
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Channels3.0
Channels2.1
Variants
- Beam (Black)
- Beam (White)
- Signa S2 (Black)
- Signa S2D (Black)
Our Verdict
Sonos Beam
Polk Audio Signa S2
The Sonos Beam is better than the Polk Audio Signa S2. The Sonos is a 3.0 setup with a discrete center channel that offers a better soundstage performance. It's better built, too. Unlike the Polk Audio soundbar, it has a room correction feature and built-in voice assistant support. However, some listeners may prefer to customize their bar's sound using the Polk Audio's EQ presets.
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Black
Beam
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Finding storeBlack
Signa S2
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Finding storeWhite
Beam
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Finding storeBlack
Signa S2D
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Finding storeMain Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
6.9
6.6
Center
8.3
5.8
Stereo Soundstage
8.0
7.0
Stereo Dynamics
6.4
7.5
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)
35.4" (89.9 cm)
Height
2.6" (6.7 cm)
2.0" (5.0 cm)
Depth
4.0" (10.1 cm)
3.1" (7.9 cm)
Dimensions - Subwoofer
Dimensions photo - sub
Width
N/A
6.7" (17.1 cm)
Height
N/A
13.7" (34.9 cm)
Depth
N/A
12.3" (31.3 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
8.0
7.0
Build quality photo
In The Box
In The Box photo
Sound
Stereo Frequency Response
7.2
7.2
Stereo Setup
Raw Frequency Response
Frequency Response Small
Tested Preset
No Preset
Music
Slope
0.63
-0.44
Std. Err.
3.39 dB
3.26 dB
Channels
3.0
2.1
Low-Frequency Extension
49.7 Hz
49.0 Hz
High-Frequency Extension
19.9 kHz
17.2 kHz
Stereo Frequency Response With Preliminary Calibration
7.5
7.2
Frequency Response Calibrated
Suggested Preset
No Preset
Music
Suggested Bass Setting
0
0
Suggested Treble Setting
-6
N/A
Slope
0.18
-0.44
Std. Err.
2.34 dB
3.26 dB
Low-Frequency Extension
49.7 Hz
49.0 Hz
High-Frequency Extension
19.9 kHz
17.2 kHz
Stereo Soundstage
8.0
7.0
Crosstalk Error
2.26 dB
2.45 dB
Stereo Dynamics
6.4
7.5
Dynamic Range Compression
SPL @ Max Volume
91.2 dB SPL
95.6 dB SPL
DRC @ Max Volume
3.85 dB
2.66 dB
Stereo Total Harmonic Distortion
7.2
6.3
Weighted THD @ 80dB
0.73
0.58
Weighted THD @ Max Volume
1.51
10.19
Center
8.3
5.8
Center Setup
Frequency Response
Localization
Discrete
Phantom
Slope
0.39
-1.44
Std. Err.
2.87 dB
5.48 dB
SPL @ Max Volume
92.0 dB SPL
93.6 dB SPL
Weighted THD @ 80dB
0.97
0.55
Weighted THD @ Max Volume
1.56
3.22
Surround 5.1
3.1
3.3
Surround Setup
Frequency Response
Localization
Stereo (Downmix)
Stereo (Downmix)
Slope
-0.27
-1.47
Std. Err.
5.44 dB
5.51 dB
SPL @ Max Volume
85.2 dB SPL
91.2 dB SPL
Weighted THD @ 80dB
1.74
0.72
Weighted THD @ Max Volume
1.95
2.04
7.1 Rears
No
No
Height (Atmos)
0.0
0.0
Height Setup
H Frequency Response
Localization
Not Supported
Not Supported
Slope
N/A
N/A
Std. Err.
N/A
N/A
SPL @ Max Volume
N/A
N/A
Weighted THD @ 80dB
N/A
N/A
Weighted THD @ Max Volume
N/A
N/A
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 ARC
1
HDMI Out
ARC
No
HDMI 2.1 Class Bandwidth
No
Full HDMI In
No
No
Analog Audio In 3.5mm (Aux)
No
1
RCA In
No
No
USB for Files
No
No
Ethernet
1
No
Subwoofer Output
No
No
Audio Format Support: ARC/eARC
6.3
6.1
Dolby Atmos
Not Supported
No
Dolby Digital
Supported
Yes
Dolby Digital Plus
Not Supported
No
Dolby TrueHD
Not Supported
No
DTS
Supported
No
DTS:X
Not Supported
No
eARC
No
DTS-HD MA
Not Supported
No
PCM Channels
2.0
5.1 PCM (eARC only)
No
Audio Format Support: HDMI In
0.0
0.0
Dolby Atmos
Not Supported
No
Dolby Digital
Not Supported
No
Dolby Digital Plus
Not Supported
No
Dolby TrueHD
Not Supported
No
DTS
Not Supported
No
DTS:X
Not Supported
No
DTS-HD MA
Not Supported
No
PCM Channels
Not Supported
5.1 PCM
No
Audio Format Support: Optical
10
6.0
Dolby Digital
Supported
Yes
DTS
Supported
No
PCM Channels
2.0
Latency
9.8
7.3
Latency Video
ARC
-14 ms
83 ms
Optical
0 ms
75 ms
Full HDMI In
N/A
N/A
Video Passthrough To TV
0.0
0.0
1080p Max Refresh Rate
Not Supported
1080p @ 4:4:4 Max Refresh Rate
Not Supported
4k Max Refresh Rate
Not Supported
4k @ 120Hz @ 10-Bit
Not Supported
4k @ 4:4:4 Max Refresh Rate
Not Supported
8k Max Refresh Rate
Not Supported
HDR10 Passthrough
No
No
HDR10+ Passthrough
No
Dolby Vision Passthrough
No
HDMI Forum VRR Passthrough
No
4k @ 60 Hz Passthrough
No
FreeSync Passthrough
No
G-SYNC Passthrough
No
ALLM Passthrough
No
4k @ 60 Hz @ 10 bit Passthrough
No
4k @ 60 Hz @ 4:4:4 Passthrough
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
Searching
Finding storeBlack
Signa S2
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Finding storeWhite
Beam
Searching
Finding storeBlack
Signa S2D
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Finding store
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Sonos Beam
Polk Audio Signa S2
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Sonos Beam vs Polk Audio Signa S2: Main Discussion
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