Vizio SB46514-F6 vs M Series M51ax-J6

Which Soundbar Is Better?

Products

Vizio SB46514-F6
Vizio M Series M51ax-J6

Tested using Methodology v1.0

Updated Jan 12, 2024 04:16 PM

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Tested using Methodology v1.3

Updated Sep 04, 2024 06:58 PM

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Our Verdict

Vizio SB46514-F6

Vizio M Series M51ax-J6

The Vizio M Series M51ax-J6 is better for mixed usage than the Vizio SB46514-F6. The M Series is a 5.1 setup with a better center channel performance and more sound enhancement features, including dialogue enhancement with greater support for different audio formats. That said, the SB46514-F6 is better built and has a slightly better Atmos performance.

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Variants

  • SB46514-F6 (Black)
  • M Series M51ax-J6 (Dark Charcoal)

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Black
SB46514-F6
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Dark Charcoal
M Series M51ax-J6
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Black
SB46514-F6
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Dark Charcoal
M Series M51ax-J6
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Black
SB46514-F6
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Dark Charcoal
M Series M51ax-J6
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Black
SB46514-F6
B&H
Dark Charcoal
M Series M51ax-J6
Walmart.com
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Main Differences for
Mixed Usage

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Mixed Usage 

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Full Comparison

Design

Style - Bar  

Style photo - bar  

Vizio SB46514-F6 Style photo - bar Sample

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Vizio M Series M51ax-J6 Style photo - bar Sample

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Show Text 

Style - Subwoofer  

Style photo - sub  

Vizio SB46514-F6 Style photo - sub Sample

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Vizio M Series M51ax-J6 Style photo - sub Sample

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Sub Wireless 
 

Locked
Locked

Enclosure 
 

Locked
Locked
Show Text 

Style - Satellites  

Style photo - satellites  

Vizio SB46514-F6 Style photo - satellites Sample

SAMPLE

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Vizio M Series M51ax-J6 Style photo - satellites Sample

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Satellite Wireless 
 

Locked
Locked
Show Text 

Dimensions - Bar  

Dimensions photo - bar  

Vizio SB46514-F6 Dimensions photo - bar Sample

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Vizio M Series M51ax-J6 Dimensions photo - bar Sample

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Width  

Lock" (Lock cm)
Lock" (Lock cm)

Height  

Lock" (Lock cm)
Lock" (Lock cm)

Depth  

Lock" (Lock cm)
Lock" (Lock cm)
Show Text 

Dimensions - Subwoofer  

Dimensions photo - sub  

Vizio SB46514-F6 Dimensions photo - sub Sample

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Vizio M Series M51ax-J6 Dimensions photo - sub Sample

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Width  

Lock" (Lock cm)
Lock" (Lock cm)

Height  

Lock" (Lock cm)
Lock" (Lock cm)

Depth  

Lock" (Lock cm)
Lock" (Lock cm)
Show Text 

Dimensions - Satellites  

Dimensions photo - satellites  

Vizio SB46514-F6 Dimensions photo - satellites Sample

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Vizio M Series M51ax-J6 Dimensions photo - satellites Sample

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Width  

Lock" (Lock cm)
Lock" (Lock cm)

Height  

Lock" (Lock cm)
Lock" (Lock cm)

Depth  

Lock" (Lock cm)
Lock" (Lock cm)
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Mounting 
 

Bar Mounting Holes  

Vizio SB46514-F6 Bar Mounting Holes Sample

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Vizio M Series M51ax-J6 Bar Mounting Holes Sample

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Satellite Mounting Holes  

Vizio SB46514-F6 Satellite Mounting Holes Sample

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Vizio M Series M51ax-J6 Satellite Mounting Holes Sample

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Mountable Bar 
 

Locked

Bar Brackets Included 
 

Locked

Mountable Satellites 
 

Locked

Satellite Brackets Included 
 

Locked

Build Quality 
 

N/A
N/A

Build quality photo  

Vizio SB46514-F6 Build quality photo Sample

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Vizio M Series M51ax-J6 Build quality photo Sample

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In The Box 
 

In The Box photo   

Vizio SB46514-F6 In The Box photo  Sample

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Vizio M Series M51ax-J6 In The Box photo  Sample

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HDMI Cable Length 
 

Lock m (Lock ft)

Digital Optical Cable Length 
 

Lock m (Lock ft)
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Back - Bar  

Back photo - bar  

Vizio SB46514-F6 Back photo - bar Sample

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Vizio M Series M51ax-J6 Back photo - bar Sample

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Bar Mounting 
 

Locked
Show Text 

Back - Subwoofer  

Back photo - sub  

Vizio SB46514-F6 Back photo - sub Sample

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Vizio M Series M51ax-J6 Back photo - sub Sample

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Enclosure 
 

Locked
Locked
Show Text 

Back - Satellites  

Back photo - satellites  

Vizio SB46514-F6 Back photo - satellites Sample

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Vizio M Series M51ax-J6 Back photo - satellites Sample

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Mounting 
 

Locked
Show Text 
Sound

Stereo Frequency Response 
 

N/A
N/A

Stereo Setup  

Vizio SB46514-F6 Stereo Setup Sample

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Vizio M Series M51ax-J6 Stereo Setup Sample

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Raw Frequency Response  

Vizio SB46514-F6 Raw Frequency Response Sample

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Vizio M Series M51ax-J6 Raw Frequency Response Sample

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Frequency Response Small  

Vizio SB46514-F6 Frequency Response Small Sample

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Vizio M Series M51ax-J6 Frequency Response Small Sample

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Channels 
 

Locked
Locked

Tested Preset 
 

Locked
Locked

Slope 
 

Lock
Lock

Standard Error 
 

Lock dB
Lock dB

Low-Frequency Extension 
 

Lock Hz
Lock Hz

High-Frequency Extension 
 

Lock kHz
Lock kHz
Show Text 

Stereo Frequency Response With Preliminary Calibration 
 

N/A
N/A

Frequency Response Calibrated  

Vizio SB46514-F6 Frequency Response Calibrated Sample

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Vizio M Series M51ax-J6 Frequency Response Calibrated Sample

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Suggested Preset 
 

Locked
Locked

Suggested Bass Setting 
 

Lock
Lock

Suggested Treble Setting 
 

Lock
Lock

Slope 
 

Lock
Lock

Standard Error 
 

Lock dB
Lock dB

Low-Frequency Extension 
 

Lock Hz
Lock Hz

High-Frequency Extension 
 

Lock kHz
Lock kHz
Show Text 

Stereo Soundstage 
 

N/A
N/A

Crosstalk  

Vizio SB46514-F6 Crosstalk Sample

SAMPLE

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Vizio M Series M51ax-J6 Crosstalk Sample

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Crosstalk Error 
 

Lock dB
Lock dB
Show Text 

Stereo Dynamics 
 

N/A
N/A

Dynamic Range Compression  

Vizio SB46514-F6 Dynamic Range Compression Sample

SAMPLE

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Vizio M Series M51ax-J6 Dynamic Range Compression Sample

SAMPLE

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SPL @ Max Volume 
 

Lock dB SPL
Lock dB SPL

DRC @ 90dB 
 

Lock dB

DRC @ Max Volume 
 

Lock dB
Lock dB
Show Text 

Stereo Total Harmonic Distortion 
 

N/A
N/A

THD  

Vizio SB46514-F6 THD Sample

SAMPLE

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Vizio M Series M51ax-J6 THD Sample

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Weighted THD @ 80dB 
 

Lock

Weighted THD @ Max Volume 
 

Lock
Show Text 

Center 
 

N/A
N/A

Center Setup  

Vizio SB46514-F6 Center Setup Sample

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Vizio M Series M51ax-J6 Center Setup Sample

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Frequency Response  

Vizio SB46514-F6 Frequency Response Sample

SAMPLE

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Vizio M Series M51ax-J6 Frequency Response Sample

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Localization 
 

Locked
Locked

Slope 
 

Lock
Lock

Std. Err. 
 

Lock dB
Lock dB

SPL @ Max Volume 
 

Lock dB SPL
Lock dB SPL

Weighted THD @ 80dB 
 

Lock
Lock

Weighted THD @ Max Volume 
 

Lock
Lock
Show Text 

Surround 5.1 
 

N/A
N/A

Surround Setup  

Vizio SB46514-F6 Surround Setup Sample

SAMPLE

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Vizio M Series M51ax-J6 Surround Setup Sample

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Frequency Response  

Vizio SB46514-F6 Frequency Response Sample

SAMPLE

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Vizio M Series M51ax-J6 Frequency Response Sample

SAMPLE

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Localization 
 

Locked
Locked

Slope 
 

Lock
Lock

Std. Err. 
 

Lock dB
Lock dB

SPL @ Max Volume 
 

Lock dB SPL
Lock dB SPL

Weighted THD @ 80dB 
 

Lock
Lock

Weighted THD @ Max Volume 
 

Lock
Lock

7.1 Rears 
 

Locked
Locked
Show Text 

Height (Atmos) 
 

N/A
N/A

Height Setup  

Vizio SB46514-F6 Height Setup Sample

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Vizio M Series M51ax-J6 Height Setup Sample

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H Frequency Response  

Vizio SB46514-F6 H Frequency Response Sample

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Vizio M Series M51ax-J6 H Frequency Response Sample

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Localization 
 

Locked
Locked

Slope 
 

Lock
Lock

Std. Err. 
 

Lock dB
Lock dB

SPL @ Max Volume 
 

Lock dB SPL
Lock dB SPL

Weighted THD @ 80dB 
 

Lock
Lock

Weighted THD @ Max Volume 
 

Lock
Lock
Show Text 

Sound Enhancement Features 
 

N/A
N/A

Room Correction 
 

Locked
Locked

Dialogue Enhancement 
 

Locked
Locked

Auto-Volume/Night Mode 
 

Locked
Locked

Subwoofer Level Adjustment 
 

Locked
Locked

Bass Adjustment 
 

Locked
Locked

Treble Adjustment 
 

Locked
Locked

EQ 
 

Locked
Locked

Surround Level Adjustment 
 

Locked
Locked

Rear Level Adjustment 
 

Locked
Locked

Height Level Adjustment 
 

Locked
Locked

Virtual Surround 
 

Locked
Locked
Show Text 
Connectivity

Inputs/Outputs - Bar 
 

Physical Connections Bar Photo 1  

Vizio SB46514-F6 Physical Connections Bar Photo 1 Sample

SAMPLE

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Vizio M Series M51ax-J6 Physical Connections Bar Photo 1 Sample

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Physical Connections Bar Photo 2  

Vizio SB46514-F6 Physical Connections Bar Photo 2 Sample

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Vizio M Series M51ax-J6 Physical Connections Bar Photo 2 Sample

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Optical Audio In 
 

Locked
Locked

HDMI Out 
 

Locked
Locked

HDMI 2.1 Class Bandwidth 
 

Locked

Full HDMI In 
 

Locked
Locked

Analog Audio In 3.5mm (Aux) 
 

Locked
Locked

RCA In 
 

Locked
Locked

USB for Files 
 

Locked
Locked

Ethernet 
 

Locked
Locked

Subwoofer Output 
 

Locked

HDMI ARC 
 

Locked
Show Text 

Audio Format Support: ARC/eARC 
 

N/A
N/A

Dolby Atmos 
 

Locked
Locked

Dolby Digital 
 

Locked
Locked

Dolby Digital Plus 
 

Locked
Locked

Dolby TrueHD 
 

Locked
Locked

DTS 
 

Locked
Locked

DTS:X 
 

Locked
Locked

eARC 
 

Locked

DTS-HD MA 
 

Locked
Locked

PCM Channels 
 

Locked

5.1 PCM (eARC only) 
 

Locked
Show Text 

Audio Format Support: HDMI In 
 

N/A
N/A

Dolby Atmos 
 

Locked
Locked

Dolby Digital 
 

Locked
Locked

Dolby Digital Plus 
 

Locked
Locked

Dolby TrueHD 
 

Locked
Locked

DTS 
 

Locked
Locked

DTS:X 
 

Locked
Locked

DTS-HD MA 
 

Locked
Locked

PCM Channels 
 

Locked

5.1 PCM 
 

Locked
Show Text 

Audio Format Support: Optical 
 

N/A
N/A

Dolby Digital 
 

Locked
Locked

DTS 
 

Locked
Locked

PCM Channels 
 

Locked
Show Text 

Audio Latency: ARC 
 

N/A
N/A

ARC Latency Video  

Vizio SB46514-F6 ARC Latency Video Sample

SAMPLE

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Vizio M Series M51ax-J6 ARC Latency Video Sample

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PCM-2.0 ch 
 

Lock ms

PCM-5.1 ch 
 

Lock ms

Dolby MAT (PCM) Atmos 
 

Lock ms

Dolby Digital 
 

Lock ms

Dolby Digital Plus 
 

Lock ms

Dolby Digital Plus Atmos 
 

Lock ms
Show Text 

Audio Latency: HDMI In 
 

N/A
N/A

HDMI Latency Video  

Vizio SB46514-F6 HDMI Latency Video Sample

SAMPLE

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Vizio M Series M51ax-J6 HDMI Latency Video Sample

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Latency Video  

Vizio SB46514-F6 Latency Video Sample

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Vizio M Series M51ax-J6 Latency Video Sample

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PCM-2.0 ch 
 

Lock ms

PCM-5.1 ch 
 

Lock ms

Dolby MAT (PCM) Atmos 
 

Lock ms

Dolby Digital 
 

Lock ms

Dolby Digital Plus 
 

Lock ms

Dolby Digital Plus Atmos 
 

Lock ms

ARC 
 

Lock ms

Optical 
 

Lock ms

Full HDMI In 
 

Lock ms
Show Text 

Audio Latency: Optical 
 

N/A
N/A

Optical Latency Video  

Vizio SB46514-F6 Optical Latency Video Sample

SAMPLE

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Vizio M Series M51ax-J6 Optical Latency Video Sample

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PCM-2.0 ch 
 

Lock ms

Dolby Digital 
 

Lock ms
Show Text 

Video Passthrough To TV 
 

N/A
N/A

1080p Max Refresh Rate 
 

Locked

1080p @ 4:4:4 Max Refresh Rate 
 

Locked

4k Max Refresh Rate 
 

Locked

4k @ 120Hz @ 10-Bit 
 

Locked

4k @ 4:4:4 Max Refresh Rate 
 

Locked

8k Max Refresh Rate 
 

Locked

HDR10 Passthrough 
 

Locked
Locked

HDR10+ Passthrough 
 

Locked

Dolby Vision Passthrough 
 

Locked

HDMI Forum VRR Passthrough 
 

Locked

4k @ 60 Hz Passthrough 
 

Locked

FreeSync Passthrough 
 

Locked

G-SYNC Passthrough 
 

Locked

ALLM Passthrough 
 

Locked

4k @ 60 Hz @ 10 bit Passthrough 
 

Locked

4k @ 60 Hz @ 4:4:4 Passthrough 
 

Locked
Show Text 

Wireless Playback 
 

N/A
N/A

Bluetooth 
 

Locked
Locked

Wi-Fi Playback 
 

Locked
Locked

Chromecast built-in 
 

Locked
Locked

Apple AirPlay 
 

Locked
Locked

Spotify Connect 
 

Locked
Show Text 

Connectivity - Subwoofer 
 

Physical inputs subwoofer photo 1  

Vizio SB46514-F6 Physical inputs subwoofer photo 1 Sample

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Vizio M Series M51ax-J6 Physical inputs subwoofer photo 1 Sample

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Physical controls subwoofer photo 1  

Vizio SB46514-F6 Physical controls subwoofer photo 1 Sample

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Vizio M Series M51ax-J6 Physical controls subwoofer photo 1 Sample

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Sub Wireless 
 

Locked
Locked
Show Text 

Connectivity - Satellites 
 

Physical inputs satellites photo 1  

Vizio SB46514-F6 Physical inputs satellites photo 1 Sample

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Vizio M Series M51ax-J6 Physical inputs satellites photo 1 Sample

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Physical controls satellites photo 1  

Vizio SB46514-F6 Physical controls satellites photo 1 Sample

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Vizio M Series M51ax-J6 Physical controls satellites photo 1 Sample

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Sat Wireless 
 

Locked
Locked
Show Text 
Additional Features

Interface 
 

Interface photo  

Vizio SB46514-F6 Interface photo Sample

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Vizio M Series M51ax-J6 Interface photo Sample

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Display 
 

Locked
Locked
Show Text 

Bar Controls 
 

Controls photo  

Vizio SB46514-F6 Controls photo Sample

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Vizio M Series M51ax-J6 Controls photo Sample

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Remote  

Remote photo  

Vizio SB46514-F6 Remote photo Sample

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Vizio M Series M51ax-J6 Remote photo Sample

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Universal Remote 
 

Locked
Show Text 

Voice Assistants Support 
 

Amazon Alexa 
 

Locked
Locked

Google Assistant 
 

Locked
Locked

Apple Siri 
 

Locked
Locked

Microphone Mute 
 

Locked
Show Text 

App 
 

App image  

Vizio SB46514-F6 App image Sample

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Vizio M Series M51ax-J6 App image Sample

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App Name  

Locked

iOS  

Locked

Android  

Locked

Acts As A Remote 
 

Locked

Controls Soundbar's Settings 
 

Locked

Casts Device Files 
 

Locked
Show Text 

Other Features 
 

Power Saving 
 

Locked

HDMI CEC (TV Remote Control) 
 

Locked
Show Text 

Check Price

Black
SB46514-F6
SEE PRICE
Amazon.com
Dark Charcoal
M Series M51ax-J6
SEE PRICE
Amazon.com
Black
SB46514-F6
SEE PRICE
BestBuy.com
Dark Charcoal
M Series M51ax-J6
B&H
Black
SB46514-F6
SEE PRICE
Walmart.com
Dark Charcoal
M Series M51ax-J6
BestBuy.com
Black
SB46514-F6
B&H
Dark Charcoal
M Series M51ax-J6
Walmart.com

Vizio SB46514-F6

Vizio M Series M51ax-J6

Comments

  1. Comparison

Vizio SB46514-F6 vs Vizio M Series M51ax-J6: Main Discussion

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