1.   Try searching by:
    1. Category (Best $100 Headphones, Best 50 Inch TVs, …)
    2. Brand (Sony, Samsung, LG, Bose, …)
    3. Model (S405, QC 35 II, …)
    4. Etc...
Get insider access
Get insider access
Preferred store
Notice: Your browser is not supported or outdated so some features of the site might not be available.
Best
Soundbars Subwoofer Samsung Dolby Atmos Bose LG All-In-One Sonos Music Under $200 Small Under $500 Vizio Dialogue Sony Under $300 Under $100 Movies Budget 5.1
Tools
Compare Table Review List Review Index Graph Custom Ratings
Popular
Samsung HW-Q990D Samsung HW-Q990F Hisense AX5125H Samsung HW-Q800D Samsung HW-Q930D Samsung HW-Q600C/Q60CC Sonos Arc Ultra Samsung HW-B750D Samsung HW-S60D Sonos Beam (Gen 2) LG S95TR Samsung HW-B650 LG S90TR LG S80TR Samsung HW-Q990C JBL Bar 500 TCL Q85H Sonos Arc Sonos Ultimate Immersive Set with Arc Ultra Sony BRAVIA Theater Quad with Bass Module
220
Soundbars bought and tested
Supported by you via insider access, and when you purchase through links on our site, we may earn an affiliate commission.
Driven by data, run by a passionate team of engineers, testers, technical writers, developers, and more.
We are hiring!
  1. Home
  2. Soundbar
  3. Compare
  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. Stereo Total Harmonic Distortion
    6. Center
    7. Surround 5.1
    8. Height (Atmos)
    9. 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 M Series M512a-H6 vs LG SP7R

Side-by-Side Comparison

Products

Vizio M Series M512a-H6
LG SP7R

Tested using Methodology v1.3

Updated Oct 24, 2024 02:30 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.2

Updated Jan 12, 2024 04:31 PM

SEE PRICE
Amazon.com
Vizio M Series M512a-H6 Picture
LG SP7R Picture
Channels
5.1.2
Channels
7.1

Variants

  • M Series M512a-H6 (Black)
  • SP7R (Black)

Review

See Vizio M Series M512a-H6 Review
See LG SP7R Review
0 
0 

Our Verdict

Vizio M Series M512a-H6

LG SP7R

The Vizio M Series M512a-H6 is better than the LG SP7R. The Vizio supports Dolby Atmos content, unlike the LG. It gets louder, too, and reproduces a more extended low-bass. You don't have to wire its satellites to a receiver, which some users may prefer.

0 

Check Price

Black
M Series M512a-H6
Searching
Finding store
Black
SP7R
Searching
Finding store
Black
M Series M512a-H6
Searching
Finding store
Black
SP7R
Searching
Finding store
Black
M Series M512a-H6
Searching
Finding store
Black
SP7R
Searching
Finding store
Black
M Series M512a-H6
Searching
Finding store
Black
SP7R
Searching
Finding store
Black
M Series M512a-H6
Searching
Finding store
Black
SP7R
Searching
Finding store
 
Black
SP7R
Searching
Finding store
Read more

Main Differences for
Mixed Usage

Threshold 

0.10

Mixed Usage 

7.8
7.0

Height (Atmos) 
 

5.7
0.0

Audio Format Support: ARC/eARC 
 

9.9
3.3

Stereo Frequency Response 
 

7.8
7.4

Surround 5.1 
 

5.4
7.6

Stereo Soundstage 
 

8.0
7.0

Full Comparison

Design

Style - Bar  

Style photo - bar  

Vizio M Series M512a-H6 Style photo - bar
LG SP7R Style photo - bar
Show Text 

Style - Subwoofer  

Style photo - sub  

Vizio M Series M512a-H6 Style photo - sub
LG SP7R Style photo - sub

Sub Wireless 
 

Yes
Yes

Enclosure 
 

Ported
Ported
Show Text 

Style - Satellites  

Style photo - satellites  

Vizio M Series M512a-H6 Style photo - satellites
LG SP7R Style photo - satellites

Satellite Wireless 
 

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

Dimensions - Bar  

Dimensions photo - bar  

Vizio M Series M512a-H6 Dimensions photo - bar
LG SP7R Dimensions photo - bar

Width  

40.0" (101.7 cm)
39.4" (100.0 cm)

Height  

2.7" (6.9 cm)
2.5" (6.4 cm)

Depth  

4.1" (10.4 cm)
4.2" (10.6 cm)
Show Text 

Dimensions - Subwoofer  

Dimensions photo - sub  

Vizio M Series M512a-H6 Dimensions photo - sub
LG SP7R Dimensions photo - sub

Width  

8.3" (21.2 cm)
7.1" (18.0 cm)

Height  

9.9" (25.2 cm)
15.4" (39.0 cm)

Depth  

11.7" (29.7 cm)
11.4" (29.0 cm)
Show Text 

Dimensions - Satellites  

Dimensions photo - satellites  

Vizio M Series M512a-H6 Dimensions photo - satellites
LG SP7R Dimensions photo - satellites

Width  

5.7" (14.6 cm)
3.9" (10.0 cm)

Height  

2.3" (5.8 cm)
5.5" (13.9 cm)

Depth  

3.5" (9.0 cm)
3.9" (10.0 cm)
Show Text 

Mounting 
 

Bar Mounting Holes  

Vizio M Series M512a-H6 Bar Mounting Holes
LG SP7R Bar Mounting Holes

Satellite Mounting Holes  

Vizio M Series M512a-H6 Satellite Mounting Holes
LG SP7R Satellite Mounting Holes

Mountable Bar 
 

Yes
Yes

Bar Brackets Included 
 

Yes
Yes

Mountable Satellites 
 

Yes
Yes

Satellite Brackets Included 
 

Yes
No
Show Text 

Build Quality 
 

7.5
7.5

Build quality photo  

Vizio M Series M512a-H6 Build quality photo
LG SP7R Build quality photo
Show Text 

In The Box 
 

In The Box photo   

Vizio M Series M512a-H6 In The Box photo
LG SP7R In The Box photo
Show Text 
Sound

Stereo Frequency Response 
 

7.8
7.4

Stereo Setup  

Vizio M Series M512a-H6 Stereo Setup
LG SP7R 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 
 

5.1.2
7.1

Tested Preset 
 

Direct
Standard

Slope 
 

0.05
-0.90

Standard Error 
 

3.79 dB
3.29 dB

Low-Frequency Extension 
 

31.7 Hz
46.9 Hz

High-Frequency Extension 
 

19.9 kHz
19.9 kHz
Show Text 

Stereo Frequency Response With Preliminary Calibration 
 

7.8
7.6

Frequency Response Calibrated  

See details on graph tool
See details on graph tool

Suggested Preset 
 

Direct
Standard

Suggested Bass Setting 
 

0
-4

Suggested Treble Setting 
 

0
2

Slope 
 

0.05
-0.07

Standard Error 
 

3.79 dB
2.48 dB

Low-Frequency Extension 
 

31.7 Hz
46.9 Hz

High-Frequency Extension 
 

19.9 kHz
19.9 kHz
Show Text 

Stereo Soundstage 
 

8.0
7.0

Crosstalk  

See details on graph tool
See details on graph tool

Crosstalk Error 
 

2.28 dB
2.72 dB
Show Text 

Stereo Dynamics 
 

8.4
7.9

Dynamic Range Compression  

See details on graph tool
See details on graph tool

SPL @ Max Volume 
 

92.8 dB SPL
89.7 dB SPL

DRC @ 90dB 
 

0.24 dB

DRC @ Max Volume 
 

0.58 dB
0.46 dB
Show Text 

Stereo Total Harmonic Distortion 
 

7.5

THD  

See details on graph tool

Weighted THD @ 80dB 
 

0.49

Weighted THD @ Max Volume 
 

2.30
Show Text 

Center 
 

8.3
7.5

Center Setup  

Vizio M Series M512a-H6 Center Setup
LG SP7R Center Setup

Frequency Response  

See details on graph tool
See details on graph tool

Localization 
 

Discrete
Discrete

Slope 
 

-0.05
-0.36

Std. Err. 
 

2.96 dB
4.41 dB

SPL @ Max Volume 
 

93.1 dB SPL
85.1 dB SPL

Weighted THD @ 80dB 
 

0.82
1.08

Weighted THD @ Max Volume 
 

1.61
5.05
Show Text 

Surround 5.1 
 

5.4
7.6

Surround Setup  

Vizio M Series M512a-H6 Surround Setup
LG SP7R Surround Setup

Frequency Response  

See details on graph tool
See details on graph tool

Localization 
 

Discrete
Discrete

Slope 
 

-0.81
-1.53

Std. Err. 
 

9.29 dB
5.49 dB

SPL @ Max Volume 
 

90.8 dB SPL
96.6 dB SPL

Weighted THD @ 80dB 
 

1.03
0.29

Weighted THD @ Max Volume 
 

14.09
1.61

7.1 Rears 
 

No
Yes
Show Text 

Height (Atmos) 
 

5.7
0.0

Height Setup  

Vizio M Series M512a-H6 Height Setup
LG SP7R Height Setup

H Frequency Response  

See details on graph tool
LG SP7R H Frequency Response

Localization 
 

Phantom (Up Firing, Bar)
Not Supported

Slope 
 

-0.31
N/A

Std. Err. 
 

4.49 dB
N/A

SPL @ Max Volume 
 

78.9 dB SPL
N/A

Weighted THD @ 80dB 
 

0.90
N/A

Weighted THD @ Max Volume 
 

0.80
N/A
Show Text 

Sound Enhancement Features 
 

7.4
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
Yes

Height Level Adjustment 
 

Yes
No

Virtual Surround 
 

Yes
Yes
Show Text 
Connectivity

Inputs/Outputs - Bar 
 

Physical Connections Bar Photo 1  

Vizio M Series M512a-H6 Physical Connections Bar Photo 1
LG SP7R Physical Connections Bar Photo 1

Physical Connections Bar Photo 2  

Vizio M Series M512a-H6 Physical Connections Bar Photo 2
LG SP7R Physical Connections Bar Photo 2

Optical Audio In 
 

1
1

HDMI Out 
 

eARC
ARC

HDMI 2.1 Class Bandwidth 
 

No
No

Full HDMI In 
 

1
1

Analog Audio In 3.5mm (Aux) 
 

1
No

RCA In 
 

No
No

USB for Files 
 

1
1

Ethernet 
 

No
No

Subwoofer Output 
 

No
No
Show Text 

Audio Format Support: ARC/eARC 
 

9.9
3.3

Dolby Atmos 
 

Supported
Not Supported

Dolby Digital 
 

Supported
Incorrect Implementation

Dolby Digital Plus 
 

Supported
Not Supported

Dolby TrueHD 
 

Supported
Not Supported

DTS 
 

Supported
Incorrect Implementation

DTS:X 
 

Supported
Not Supported

DTS-HD MA 
 

Supported
Not Supported

PCM Channels 
 

Up To 5.1
2.0
Show Text 

Audio Format Support: HDMI In 
 

9.9
3.0

Dolby Atmos 
 

Supported
Not Supported

Dolby Digital 
 

Supported
Incorrect Implementation

Dolby Digital Plus 
 

Supported
Not Supported

Dolby TrueHD 
 

Supported
Not Supported

DTS 
 

Supported
Incorrect Implementation

DTS:X 
 

Supported
Not Supported

DTS-HD MA 
 

Supported
Not Supported

PCM Channels 
 

Up To 5.1
Not Supported
Show Text 

Audio Format Support: Optical 
 

10
6.0

Dolby Digital 
 

Supported
Incorrect Implementation

DTS 
 

Supported
Incorrect Implementation

PCM Channels 
 

2.0
2.0
Show Text 

Audio Latency: ARC 
 

6.3

ARC Latency Video  

PCM-2.0 ch 
 

92 ms

PCM-5.1 ch 
 

106 ms

Dolby MAT (PCM) Atmos 
 

112 ms

Dolby Digital 
 

124 ms

Dolby Digital Plus 
 

125 ms

Dolby Digital Plus Atmos 
 

134 ms
Show Text 

Audio Latency: HDMI In 
 

7.1
5.9

HDMI Latency Video  

Latency Video  

PCM-2.0 ch 
 

97 ms

PCM-5.1 ch 
 

103 ms

Dolby MAT (PCM) Atmos 
 

93 ms

Dolby Digital 
 

123 ms

Dolby Digital Plus 
 

111 ms

Dolby Digital Plus Atmos 
 

120 ms

ARC 
 

172 ms

Optical 
 

116 ms

Full HDMI In 
 

64 ms
Show Text 

Audio Latency: Optical 
 

6.1

Optical Latency Video  

PCM-2.0 ch 
 

156 ms

Dolby Digital 
 

349 ms
Show Text 

Video Passthrough To TV 
 

9.2
3.4

1080p Max Refresh Rate 
 

120Hz
60Hz

1080p @ 4:4:4 Max Refresh Rate 
 

120Hz
60Hz

4k Max Refresh Rate 
 

120Hz
Not Supported

4k @ 120Hz @ 10-Bit 
 

Not Supported
Not Supported

4k @ 4:4:4 Max Refresh Rate 
 

60Hz
Not Supported

8k Max Refresh Rate 
 

30Hz
Not Supported

HDR10 Passthrough 
 

Yes
No

HDR10+ Passthrough 
 

Yes
No

Dolby Vision Passthrough 
 

Yes
No

HDMI Forum VRR Passthrough 
 

Yes
No

FreeSync Passthrough 
 

Yes
No

G-SYNC Passthrough 
 

No
No

ALLM Passthrough 
 

Yes
No
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 M Series M512a-H6 Interface photo
LG SP7R Interface photo

Display 
 

No
Yes
Show Text 

Bar Controls 
 

Controls photo  

Vizio M Series M512a-H6 Controls photo
LG SP7R Controls photo
Show Text 

Remote  

Remote photo  

Vizio M Series M512a-H6 Remote photo
LG SP7R 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
M Series M512a-H6
Searching
Finding store
Black
SP7R
Searching
Finding store
Black
M Series M512a-H6
Searching
Finding store
Black
SP7R
Searching
Finding store
Black
M Series M512a-H6
Searching
Finding store
Black
SP7R
Searching
Finding store
Black
M Series M512a-H6
Searching
Finding store
Black
SP7R
Searching
Finding store
Black
M Series M512a-H6
Searching
Finding store
Black
SP7R
Searching
Finding store
 
Black
SP7R
Searching
Finding store
Back to Top

Vizio M Series M512a-H6

LG SP7R

Comments

  1. Comparison
 • Posted 1 year ago

Vizio M Series M512a-H6 vs LG SP7R: 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.

Follow Discussion0 followingSee All Soundbars & Speakers DiscussionsCopy link
0 
PreviewBack to editorFormat guide
No comments yet, refresh to see new ones
We make money directly from you via insider access (which gives you access to extra features) and when you buy a product after clicking a link to a retailer. Learn more about how we work.
We buy our own products, just like you, mostly from the United States. When a product is discontinued or no longer popular, we sell the review units locally. You can see what products we currently have for sale here.
© 2025 9298-5266 Quebec Inc. All Rights Reserved. Visit our corporate site.