Products
Samsung HW-A650
Vizio M Series M51ax-J6
Tested using Methodology v1.1
Updated Jan 30, 2024 04:32 PM
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Amazon.com
Tested using Methodology v1.3
Updated Sep 04, 2024 06:58 PM
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Amazon.com
Channels
3.1
Channels
5.1
Our Verdict
Samsung HW-A650
Vizio M Series M51ax-J6
The Vizio M Series M51ax-J6 is better than the Samsung HW-A650. The Vizio is a 5.1 setup with discrete satellites; it offers better surround performance. Unlike the Samsung soundbar, it supports Atmos content and can reproduce a slightly more extended low bass. However, the 3.1 Samsung is better built and has a graphic EQ.
Variants
- HW-A650 (Black)
- M Series M51ax-J6 (Dark Charcoal)
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Black
HW-A650
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Dark Charcoal
M Series M51ax-J6
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Black
HW-A650
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Walmart.com
Dark Charcoal
M Series M51ax-J6
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Black
HW-A650
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Dark Charcoal
M Series M51ax-J6
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Black
HW-A650
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Dark Charcoal
M Series M51ax-J6
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Black
HW-A650
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Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
7.4
7.9
Height (Atmos)
0.0
5.9
Surround 5.1
3.7
7.5
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
Partial, wired to wireless sub
Dimensions - Bar
Dimensions photo - bar
Width
38.6" (98.0 cm)
36.0" (91.5 cm)
Height
2.3" (5.8 cm)
2.3" (5.8 cm)
Depth
4.1" (10.5 cm)
3.5" (9.0 cm)
Dimensions - Subwoofer
Dimensions photo - sub
Width
8.0" (20.4 cm)
8.3" (21.0 cm)
Height
13.9" (35.3 cm)
9.9" (25.2 cm)
Depth
11.9" (30.3 cm)
8.3" (21.0 cm)
Dimensions - Satellites
Dimensions photo - satellites
Width
N/A
5.7" (14.6 cm)
Height
N/A
2.3" (5.8 cm)
Depth
N/A
3.5" (9.0 cm)
Mounting
Bar Mounting Holes
Satellite Mounting Holes
Mountable Bar
Yes
Yes
Bar Brackets Included
Yes
Yes
Mountable Satellites
No
Yes
Satellite Brackets Included
No
Yes
Build Quality
8.0
7.0
Build quality photo
In The Box
In The Box photo
Sound
Stereo Frequency Response
7.9
7.9
Stereo Setup
Raw Frequency Response
Frequency Response Small
Channels
3.1
5.1
Tested Preset
Standard
Direct
Slope
-0.34
-0.26
Standard Error
2.10 dB
3.35 dB
Low-Frequency Extension
41.8 Hz
33.6 Hz
High-Frequency Extension
19.9 kHz
19.9 kHz
Stereo Frequency Response With Preliminary Calibration
7.9
8.2
Frequency Response Calibrated
Suggested Preset
Standard
Direct
Suggested Bass Setting
-1
-3
Suggested Treble Setting
2
0
Slope
-0.07
-0.11
Standard Error
2.05 dB
2.37 dB
Low-Frequency Extension
41.8 Hz
33.2 Hz
High-Frequency Extension
19.9 kHz
19.6 kHz
Stereo Dynamics
7.8
8.5
Dynamic Range Compression
SPL @ Max Volume
93.0 dB SPL
96.2 dB SPL
DRC @ 90dB
0.25 dB
DRC @ Max Volume
1.49 dB
1.40 dB
Stereo Total Harmonic Distortion
7.3
THD
Weighted THD @ 80dB
0.46
Weighted THD @ Max Volume
3.87
Center
8.1
8.4
Center Setup
Frequency Response
Localization
Discrete
Discrete
Slope
-0.98
-0.21
Std. Err.
3.26 dB
2.67 dB
SPL @ Max Volume
87.9 dB SPL
92.4 dB SPL
Weighted THD @ 80dB
0.41
1.17
Weighted THD @ Max Volume
2.70
2.09
Surround 5.1
3.7
7.5
Surround Setup
Frequency Response
Localization
Stereo (Downmix)
Discrete
Slope
-1.43
-0.17
Std. Err.
4.43 dB
4.01 dB
SPL @ Max Volume
89.9 dB SPL
93.3 dB SPL
Weighted THD @ 80dB
0.48
0.34
Weighted THD @ Max Volume
2.48
1.02
7.1 Rears
No
No
Height (Atmos)
0.0
5.9
Height Setup
H Frequency Response
Localization
Not Supported
Phantom (Front Firing, Satellites)
Slope
N/A
-0.06
Std. Err.
N/A
3.99 dB
SPL @ Max Volume
N/A
85.1 dB SPL
Weighted THD @ 80dB
N/A
2.60
Weighted THD @ Max Volume
N/A
0.32
Sound Enhancement Features
7.4
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
Graphic + Presets
Presets
Surround Level Adjustment
No
Yes
Rear Level Adjustment
Yes
No
Height Level Adjustment
No
No
Virtual Surround
Yes
Yes
Connectivity
Inputs/Outputs - Bar
Physical Connections Bar Photo 1
Physical Connections Bar Photo 2
Optical Audio In
1
1
HDMI ARC
1 (shared)
HDMI Out
1 (shared)
eARC
HDMI 2.1 Class Bandwidth
No
Full HDMI In
1
1
Analog Audio In 3.5mm (Aux)
No
1
RCA In
No
No
USB for Files
1
1
Ethernet
No
No
Subwoofer Output
No
No
Audio Format Support: ARC/eARC
7.1
10
Dolby Atmos
No
Supported
Dolby Digital
Yes
Supported
Dolby Digital Plus
No
Supported
Dolby TrueHD
No
Supported
DTS
Yes
Supported
DTS:X
No
Supported
eARC
No
DTS-HD MA
No
Supported
PCM Channels
Up To 7.1
5.1 PCM (eARC only)
No
Audio Format Support: HDMI In
7.4
10
Dolby Atmos
No
Supported
Dolby Digital
Yes
Supported
Dolby Digital Plus
No
Supported
Dolby TrueHD
No
Supported
DTS
Yes
Supported
DTS:X
No
Supported
DTS-HD MA
No
Supported
PCM Channels
Up To 7.1
5.1 PCM
No
Audio Format Support: Optical
10
10
Dolby Digital
Yes
Supported
DTS
Yes
Supported
PCM Channels
2.0
Audio Latency: ARC
9.5
ARC Latency Video
PCM-2.0 ch
61 ms
PCM-5.1 ch
106 ms
Dolby MAT (PCM) Atmos
76 ms
Dolby Digital
65 ms
Dolby Digital Plus
70 ms
Dolby Digital Plus Atmos
74 ms
Audio Latency: HDMI In
7.1
6.9
HDMI Latency Video
Latency Video
PCM-2.0 ch
97 ms
PCM-5.1 ch
87 ms
Dolby MAT (PCM) Atmos
107 ms
Dolby Digital
124 ms
Dolby Digital Plus
115 ms
Dolby Digital Plus Atmos
122 ms
ARC
80 ms
Optical
84 ms
Full HDMI In
102 ms
Audio Latency: Optical
7.0
Optical Latency Video
PCM-2.0 ch
147 ms
Dolby Digital
207 ms
Video Passthrough To TV
0.0
9.0
1080p Max Refresh Rate
120Hz
1080p @ 4:4:4 Max Refresh Rate
120Hz
4k Max Refresh Rate
120Hz
4k @ 120Hz @ 10-Bit
Not Supported
4k @ 4:4:4 Max Refresh Rate
60Hz
8k Max Refresh Rate
30Hz
HDR10 Passthrough
No
Yes
HDR10+ Passthrough
Yes
Dolby Vision Passthrough
Yes
HDMI Forum VRR Passthrough
Yes
4k @ 60 Hz Passthrough
No
FreeSync Passthrough
No
G-SYNC Passthrough
No
ALLM Passthrough
Yes
4k @ 60 Hz @ 10 bit Passthrough
No
4k @ 60 Hz @ 4:4:4 Passthrough
No
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
Check Price
Black
HW-A650
SEE PRICE
Amazon.com
Dark Charcoal
M Series M51ax-J6
SEE PRICE
Amazon.com
Black
HW-A650
SEE PRICE
Walmart.com
Dark Charcoal
M Series M51ax-J6
SEARCH
B&H
Black
HW-A650
SEARCH
B&H
Dark Charcoal
M Series M51ax-J6
SEARCH
BestBuy.com
Black
HW-A650
SEARCH
BestBuy.com
Dark Charcoal
M Series M51ax-J6
SEARCH
Walmart.com
Black
HW-A650
SEARCH
Samsung.com
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Samsung HW-A650
Vizio M Series M51ax-J6
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Samsung HW-A650 vs Vizio M Series M51ax-J6: Main Discussion
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