Notice: Your browser is not supported or outdated so some features of the site might not be available.
  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style - Bar
    2. Style - Subwoofer
    3. Style - Satellites
    4. Dimensions - Bar
    5. Dimensions - Subwoofer
    6. Dimensions - Satellites
    7. Mounting
    8. Build Quality
    9. In The Box
  5. Sound
    1. Stereo Frequency Response
    2. Stereo Frequency Response With Preliminary Calibration
    3. Stereo Soundstage
    4. Stereo Dynamics
    5. Center
    6. Surround 5.1
    7. Height (Atmos)
    8. Sound Enhancement Features
  6. Connectivity
    1. Inputs/Outputs - Bar
    2. Audio Format Support: ARC/eARC
    3. Audio Format Support: HDMI In
    4. Audio Format Support: Optical
    5. Audio Latency: ARC
    6. Audio Latency: HDMI In
    7. Audio Latency: Optical
    8. Video Passthrough To TV
    9. Wireless Playback
  7. Additional Features
    1. Interface
    2. Bar Controls
    3. Remote
    4. Voice Assistants Support
  8. Comments

Vizio V Series V51-H6 vs Vizio M Series M512a-H6

Side-by-Side Comparison

Products

Vizio V Series V51-H6
Vizio M Series M512a-H6

Tested using Methodology v1.3

Updated Oct 24, 2024 02:30 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.3

Updated Oct 24, 2024 02:30 PM

SEE PRICE
Amazon.com
Vizio V Series V51-H6 Picture
Vizio M Series M512a-H6 Picture

Variants

  • V Series V51-H6 (Black)
  • M Series M512a-H6 (Black)

Our Verdict

Vizio V Series V51-H6

Vizio M Series M512a-H6

The Vizio M Series M512a-H6 is better than the Vizio V Series V51-H6. The M Series is better built, with a better soundstage and performance. Unlike the V Series, it supports Atmos content and has a Full HDMI In port. That said, the V Series has a better surrounds performance.

0 

Check Price

Black
V Series V51-H6
SEE PRICE
Amazon.com
Black
M Series M512a-H6
SEE PRICE
Amazon.com
Black
V Series V51-H6
SEE PRICE
Walmart.com
Black
M Series M512a-H6
SEE PRICE
BestBuy.com
Black
V Series V51-H6
B&H
Black
M Series M512a-H6
SEE PRICE
Walmart.com
Black
V Series V51-H6
BestBuy.com
Black
M Series M512a-H6
B&H

Main Differences for
Mixed Usage

Threshold 

0.10

Mixed Usage 

7.4
7.8

Height (Atmos) 
 

0.0
5.7

Audio Format Support: HDMI In 
 

0.0
9.9

Audio Format Support: ARC/eARC 
 

6.3
9.9

Stereo Soundstage 
 

7.0
8.0

Full Comparison

Design

Style - Bar  

Style photo - bar  

Vizio V Series V51-H6 Style photo - bar
Vizio M Series M512a-H6 Style photo - bar
Show Text 

Style - Subwoofer  

Style photo - sub  

Vizio V Series V51-H6 Style photo - sub
Vizio M Series M512a-H6 Style photo - sub

Sub Wireless 
 

Yes
Yes

Enclosure 
 

Ported
Ported
Show Text 

Style - Satellites  

Style photo - satellites  

Vizio V Series V51-H6 Style photo - satellites
Vizio M Series M512a-H6 Style photo - satellites

Satellite Wireless 
 

Partial, wired to wireless sub
Partial, wired to wireless sub
Show Text 

Dimensions - Bar  

Dimensions photo - bar  

Vizio V Series V51-H6 Dimensions photo - bar
Vizio M Series M512a-H6 Dimensions photo - bar

Width  

36.0" (91.5 cm)
40.0" (101.7 cm)

Height  

2.2" (5.7 cm)
2.7" (6.9 cm)

Depth  

3.2" (8.2 cm)
4.1" (10.4 cm)
Show Text 

Dimensions - Subwoofer  

Dimensions photo - sub  

Vizio V Series V51-H6 Dimensions photo - sub
Vizio M Series M512a-H6 Dimensions photo - sub

Width  

8.3" (21.2 cm)
8.3" (21.2 cm)

Height  

9.8" (25.0 cm)
9.9" (25.2 cm)

Depth  

8.3" (21.2 cm)
11.7" (29.7 cm)
Show Text 

Dimensions - Satellites  

Dimensions photo - satellites  

Vizio V Series V51-H6 Dimensions photo - satellites
Vizio M Series M512a-H6 Dimensions photo - satellites

Width  

4.8" (12.1 cm)
5.7" (14.6 cm)

Height  

2.2" (5.7 cm)
2.3" (5.8 cm)

Depth  

3.2" (8.2 cm)
3.5" (9.0 cm)
Show Text 

Mounting 
 

Bar Mounting Holes  

Vizio V Series V51-H6 Bar Mounting Holes
Vizio M Series M512a-H6 Bar Mounting Holes

Satellite Mounting Holes  

Vizio V Series V51-H6 Satellite Mounting Holes
Vizio M Series M512a-H6 Satellite Mounting Holes

Mountable Bar 
 

Yes
Yes

Bar Brackets Included 
 

Yes
Yes

Mountable Satellites 
 

Yes
Yes

Satellite Brackets Included 
 

Yes
Yes

Build Quality 
 

7.0
7.5

Build quality photo  

Vizio V Series V51-H6 Build quality photo
Vizio M Series M512a-H6 Build quality photo
Show Text 

In The Box 
 

In The Box photo   

Vizio V Series V51-H6 In The Box photo
Vizio M Series M512a-H6 In The Box photo
Show Text 
Sound

Stereo Frequency Response 
 

7.6
7.8

Stereo Setup  

Vizio V Series V51-H6 Stereo Setup
Vizio M Series M512a-H6 Stereo Setup

Raw Frequency Response  

See details on graph tool
See details on graph tool

Frequency Response Small  

See details on graph tool
See details on graph tool

Channels 
 

5.1
5.1.2

Tested Preset 
 

Direct
Direct

Slope 
 

-0.66
0.05

Standard Error 
 

3.28 dB
3.79 dB

Low-Frequency Extension 
 

40.0 Hz
31.7 Hz

High-Frequency Extension 
 

19.9 kHz
19.9 kHz
Show Text 

Stereo Frequency Response With Preliminary Calibration 
 

7.7
7.8

Frequency Response Calibrated  

See details on graph tool
See details on graph tool

Suggested Preset 
 

Direct
Direct

Suggested Bass Setting 
 

-3
0

Suggested Treble Setting 
 

1
0

Slope 
 

0.07
0.05

Standard Error 
 

2.76 dB
3.79 dB

Low-Frequency Extension 
 

43.0 Hz
31.7 Hz

High-Frequency Extension 
 

19.9 kHz
19.9 kHz
Show Text 

Stereo Soundstage 
 

7.0
8.0

Crosstalk  

See details on graph tool
See details on graph tool

Crosstalk Error 
 

2.14 dB
2.28 dB
Show Text 

Stereo Dynamics 
 

8.6
8.4

Dynamic Range Compression  

See details on graph tool
See details on graph tool

SPL @ Max Volume 
 

95.3 dB SPL
92.8 dB SPL

DRC @ 90dB 
 

0.21 dB
0.24 dB

DRC @ Max Volume 
 

0.97 dB
0.58 dB
Show Text 

Center 
 

8.1
8.3

Center Setup  

Vizio V Series V51-H6 Center Setup
Vizio M Series M512a-H6 Center Setup

Frequency Response  

See details on graph tool
See details on graph tool

Localization 
 

Discrete
Discrete

Slope 
 

-0.81
-0.05

Std. Err. 
 

3.42 dB
2.96 dB

SPL @ Max Volume 
 

91.1 dB SPL
93.1 dB SPL

Weighted THD @ 80dB 
 

0.63
0.82

Weighted THD @ Max Volume 
 

1.68
1.61
Show Text 

Surround 5.1 
 

7.0
5.4

Surround Setup  

Vizio V Series V51-H6 Surround Setup
Vizio M Series M512a-H6 Surround Setup

Frequency Response  

See details on graph tool
See details on graph tool

Localization 
 

Discrete
Discrete

Slope 
 

-1.86
-0.81

Std. Err. 
 

4.85 dB
9.29 dB

SPL @ Max Volume 
 

90.2 dB SPL
90.8 dB SPL

Weighted THD @ 80dB 
 

0.87
1.03

Weighted THD @ Max Volume 
 

2.61
14.09

7.1 Rears 
 

No
No
Show Text 

Height (Atmos) 
 

0.0
5.7

Height Setup  

Vizio V Series V51-H6 Height Setup
Vizio M Series M512a-H6 Height Setup

H Frequency Response  

Vizio V Series V51-H6 H Frequency Response
See details on graph tool

Localization 
 

Not Supported
Phantom (Up Firing, Bar)

Slope 
 

N/A
-0.31

Std. Err. 
 

N/A
4.49 dB

SPL @ Max Volume 
 

N/A
78.9 dB SPL

Weighted THD @ 80dB 
 

N/A
0.90

Weighted THD @ Max Volume 
 

N/A
0.80
Show Text 

Sound Enhancement Features 
 

7.1
7.4

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 
 

Yes
Yes

Rear Level Adjustment 
 

No
No

Height Level Adjustment 
 

No
Yes

Virtual Surround 
 

Yes
Yes
Show Text 
Connectivity

Inputs/Outputs - Bar 
 

Physical Connections Bar Photo 1  

Vizio V Series V51-H6 Physical Connections Bar Photo 1
Vizio M Series M512a-H6 Physical Connections Bar Photo 1

Physical Connections Bar Photo 2  

Vizio V Series V51-H6 Physical Connections Bar Photo 2
Vizio M Series M512a-H6 Physical Connections Bar Photo 2

Optical Audio In 
 

1
1

HDMI Out 
 

ARC
eARC

HDMI 2.1 Class Bandwidth 
 

No
No

Full HDMI In 
 

No
1

Analog Audio In 3.5mm (Aux) 
 

1
1

RCA In 
 

No
No

USB for Files 
 

1
1

Ethernet 
 

No
No

Subwoofer Output 
 

No
No
Show Text 

Audio Format Support: ARC/eARC 
 

6.3
9.9

Dolby Atmos 
 

Not Supported
Supported

Dolby Digital 
 

Supported
Supported

Dolby Digital Plus 
 

Not Supported
Supported

Dolby TrueHD 
 

Not Supported
Supported

DTS 
 

Supported
Supported

DTS:X 
 

Not Supported
Supported

DTS-HD MA 
 

Not Supported
Supported

PCM Channels 
 

2.0
Up To 5.1
Show Text 

Audio Format Support: HDMI In 
 

0.0
9.9

Dolby Atmos 
 

Not Supported
Supported

Dolby Digital 
 

Not Supported
Supported

Dolby Digital Plus 
 

Not Supported
Supported

Dolby TrueHD 
 

Not Supported
Supported

DTS 
 

Not Supported
Supported

DTS:X 
 

Not Supported
Supported

DTS-HD MA 
 

Not Supported
Supported

PCM Channels 
 

Not Supported
Up To 5.1
Show Text 

Audio Format Support: Optical 
 

10
10

Dolby Digital 
 

Supported
Supported

DTS 
 

Supported
Supported

PCM Channels 
 

2.0
2.0
Show Text 

Audio Latency: ARC 
 

7.3
6.3

ARC Latency Video  

PCM-2.0 ch 
 

N/A
92 ms

PCM-5.1 ch 
 

N/A
106 ms

Dolby MAT (PCM) Atmos 
 

N/A
112 ms

Dolby Digital 
 

109 ms
124 ms

Dolby Digital Plus 
 

N/A
125 ms

Dolby Digital Plus Atmos 
 

N/A
134 ms
Show Text 

Audio Latency: HDMI In 
 

0.0
7.1

HDMI Latency Video  

PCM-2.0 ch 
 

N/A
97 ms

PCM-5.1 ch 
 

N/A
103 ms

Dolby MAT (PCM) Atmos 
 

N/A
93 ms

Dolby Digital 
 

N/A
123 ms

Dolby Digital Plus 
 

N/A
111 ms

Dolby Digital Plus Atmos 
 

N/A
120 ms
Show Text 

Audio Latency: Optical 
 

6.9
6.1

Optical Latency Video  

PCM-2.0 ch 
 

N/A
156 ms

Dolby Digital 
 

366 ms
349 ms
Show Text 

Video Passthrough To TV 
 

0.0
9.2

1080p Max Refresh Rate 
 

Not Supported
120Hz

1080p @ 4:4:4 Max Refresh Rate 
 

Not Supported
120Hz

4k Max Refresh Rate 
 

Not Supported
120Hz

4k @ 120Hz @ 10-Bit 
 

Not Supported
Not Supported

4k @ 4:4:4 Max Refresh Rate 
 

Not Supported
60Hz

8k Max Refresh Rate 
 

Not Supported
30Hz

HDR10 Passthrough 
 

No
Yes

HDR10+ Passthrough 
 

No
Yes

Dolby Vision Passthrough 
 

No
Yes

HDMI Forum VRR Passthrough 
 

No
Yes

FreeSync Passthrough 
 

No
Yes

G-SYNC Passthrough 
 

No
No

ALLM Passthrough 
 

No
Yes
Show Text 

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
Show Text 
Additional Features

Interface 
 

Interface photo  

Vizio V Series V51-H6 Interface photo
Vizio M Series M512a-H6 Interface photo

Display 
 

No
No
Show Text 

Bar Controls 
 

Controls photo  

Vizio V Series V51-H6 Controls photo
Vizio M Series M512a-H6 Controls photo
Show Text 

Remote  

Remote photo  

Vizio V Series V51-H6 Remote photo
Vizio M Series M512a-H6 Remote photo
Show Text 

Voice Assistants Support 
 

Amazon Alexa 
 

No
No

Google Assistant 
 

No
No

Apple Siri 
 

No
No

Microphone Mute 
 

No
No
Show Text 

Check Price

Black
V Series V51-H6
SEE PRICE
Amazon.com
Black
M Series M512a-H6
SEE PRICE
Amazon.com
Black
V Series V51-H6
SEE PRICE
Walmart.com
Black
M Series M512a-H6
SEE PRICE
BestBuy.com
Black
V Series V51-H6
B&H
Black
M Series M512a-H6
SEE PRICE
Walmart.com
Black
V Series V51-H6
BestBuy.com
Black
M Series M512a-H6
B&H

Vizio V Series V51-H6

Vizio M Series M512a-H6

Comments

  1. Comparison

Vizio V Series V51-H6 vs Vizio M Series M512a-H6: Main Discussion

What do you think of these products? Let us know below.


Looking for a personalized buying advice from the RTINGS.com experts? Insiders have direct access to buying advice on our insider forum.

PreviewBack to editorFormat guide
No comments yet, refresh to see new ones