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  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

JBL Bar 9.1 vs Vizio M Series M51ax-J6

Side-by-Side Comparison

Products

JBL Bar 9.1
Vizio M Series M51ax-J6

Tested using Methodology v1.2

Updated Sep 05, 2024 07:07 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.3

Updated Sep 04, 2024 06:58 PM

SEE PRICE
Amazon.com
JBL Bar 9.1 Picture
Vizio M Series M51ax-J6 Picture
  1. Recommended in 1 article:
  2. 5.1

Variants

  • Bar 9.1 (Black)
  • M Series M51ax-J6 (Dark Charcoal)

Our Verdict

JBL Bar 9.1

Vizio M Series M51ax-J6

The JBL Bar 9.1 and the Vizio M Series M51ax-J6 are both very versatile 5.1 soundbars with Dolby Atmos support. The JBL offers a better soundstage, and its surround performance is a bit better. That said, the Vizio offers a better value if you're shopping on a budget.

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Notice: Two or more of the products selected have been tested with different test methodologies, so some of the results below aren't directly comparable. Learn how our test benches and scoring system work, and read more about the latest changes to our soundbars test methodology.

Main Differences for

Threshold 

0.10

Mixed Usage 

7.9
7.9

Dialogue Enhancement 
 

No
Yes

Stereo Soundstage 
 

8.0
7.0

Full Comparison

Design

Style - Bar  

Style photo - bar  

JBL Bar 9.1 Style photo - bar
Vizio M Series M51ax-J6 Style photo - bar

Show text

Style - Subwoofer  

Style photo - sub  

JBL Bar 9.1 Style photo - sub
Vizio M Series M51ax-J6 Style photo - sub

Sub Wireless 
 

Yes
Yes

Enclosure 
 

Ported
Ported

Show text

Style - Satellites  

Style photo - satellites  

JBL Bar 9.1 Style photo - satellites
Vizio M Series M51ax-J6 Style photo - satellites

Satellite Wireless 
 

Yes
Partial, wired to wireless sub

Show text

Dimensions - Bar  

Dimensions photo - bar  

JBL Bar 9.1 Dimensions photo - bar
Vizio M Series M51ax-J6 Dimensions photo - bar

Width  

34.8" (88.4 cm)
36.0" (91.5 cm)

Height  

2.3" (5.8 cm)
2.3" (5.8 cm)

Depth  

4.7" (11.9 cm)
3.5" (9.0 cm)

Show text

Dimensions - Subwoofer  

Dimensions photo - sub  

JBL Bar 9.1 Dimensions photo - sub
Vizio M Series M51ax-J6 Dimensions photo - sub

Width  

12.0" (30.5 cm)
8.3" (21.0 cm)

Height  

17.3" (44.0 cm)
9.9" (25.2 cm)

Depth  

12.0" (30.5 cm)
8.3" (21.0 cm)

Show text

Dimensions - Satellites  

Dimensions photo - satellites  

JBL Bar 9.1 Dimensions photo - satellites
Vizio M Series M51ax-J6 Dimensions photo - satellites

Width  

6.8" (17.3 cm)
5.7" (14.6 cm)

Height  

2.2" (5.6 cm)
2.3" (5.8 cm)

Depth  

4.7" (12.0 cm)
3.5" (9.0 cm)

Show text

Mounting 
 

Bar Mounting Holes  

JBL Bar 9.1 Bar Mounting Holes
Vizio M Series M51ax-J6 Bar Mounting Holes

Satellite Mounting Holes  

JBL Bar 9.1 Satellite Mounting Holes
Vizio M Series M51ax-J6 Satellite Mounting Holes

Mountable Bar 
 

Yes
Yes

Bar Brackets Included 
 

Yes
Yes

Mountable Satellites 
 

Yes
Yes

Satellite Brackets Included 
 

Yes
Yes

Build Quality 
 

8.0
7.0

Build quality photo  

JBL Bar 9.1 Build quality photo
Vizio M Series M51ax-J6 Build quality photo

Show text

In The Box 
 

In The Box photo   

JBL Bar 9.1 In The Box photo
Vizio M Series M51ax-J6 In The Box photo

Show text

Sound

Stereo Frequency Response 
 

8.1
7.9

Stereo Setup  

JBL Bar 9.1 Stereo Setup
Vizio M Series M51ax-J6 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 
 

5.1.4
5.1

Tested Preset 
 

Standard
Direct

Slope 
 

-0.31
-0.26

Standard Error 
 

2.63 dB
3.35 dB

Low-Frequency Extension 
 

33.6 Hz
33.6 Hz

High-Frequency Extension 
 

18.8 kHz
19.9 kHz

Show text

Stereo Frequency Response With Preliminary Calibration 
 

8.1
8.2

Frequency Response Calibrated  

See details on graph tool
See details on graph tool

Suggested Preset 
 

Standard
Direct

Suggested Bass Setting 
 

3
-3

Suggested Treble Setting 
 

N/A
0

Slope 
 

-0.31
-0.11

Standard Error 
 

2.63 dB
2.37 dB

Low-Frequency Extension 
 

33.6 Hz
33.2 Hz

High-Frequency Extension 
 

18.8 kHz
19.6 kHz

Show text

Stereo Soundstage 
 

8.0
7.0

Crosstalk  

See details on graph tool
See details on graph tool

Crosstalk Error 
 

3.22 dB
2.16 dB

Show text

Stereo Dynamics 
 

7.8
8.5

Dynamic Range Compression  

See details on graph tool
See details on graph tool

SPL @ Max Volume 
 

95.0 dB SPL
96.2 dB SPL

DRC @ 90dB 
 

0.25 dB

DRC @ Max Volume 
 

2.10 dB
1.40 dB

Show text

Stereo Total Harmonic Distortion 
 

8.2

THD  

See details on graph tool

Weighted THD @ 80dB 
 

0.22

Weighted THD @ Max Volume 
 

1.73

Show text

Center 
 

8.6
8.4

Center Setup  

JBL Bar 9.1 Center Setup
Vizio M Series M51ax-J6 Center Setup

Frequency Response  

See details on graph tool
See details on graph tool

Localization 
 

Discrete
Discrete

Slope 
 

-0.03
-0.21

Std. Err. 
 

2.62 dB
2.67 dB

SPL @ Max Volume 
 

94.3 dB SPL
92.4 dB SPL

Weighted THD @ 80dB 
 

0.29
1.17

Weighted THD @ Max Volume 
 

1.60
2.09

Show text

Surround 5.1 
 

7.7
7.5

Surround Setup  

JBL Bar 9.1 Surround Setup
Vizio M Series M51ax-J6 Surround Setup

Frequency Response  

See details on graph tool
See details on graph tool

Localization 
 

Discrete
Discrete

Slope 
 

-0.38
-0.17

Std. Err. 
 

4.10 dB
4.01 dB

SPL @ Max Volume 
 

97.8 dB SPL
93.3 dB SPL

Weighted THD @ 80dB 
 

0.23
0.34

Weighted THD @ Max Volume 
 

1.79
1.02

7.1 Rears 
 

No
No

Show text

Height (Atmos) 
 

6.1
5.9

Height Setup  

JBL Bar 9.1 Height Setup
Vizio M Series M51ax-J6 Height Setup

H Frequency Response  

See details on graph tool
See details on graph tool

Localization 
 

Phantom (Up Firing, Bar & Satellites)
Phantom (Front Firing, Satellites)

Slope 
 

-1.44
-0.06

Std. Err. 
 

5.40 dB
3.99 dB

SPL @ Max Volume 
 

89.7 dB SPL
85.1 dB SPL

Weighted THD @ 80dB 
 

1.04
2.60

Weighted THD @ Max Volume 
 

0.63
0.32

Show text

Sound Enhancement Features 
 

6.2
7.1

Room Correction 
 

Yes
No

Dialogue Enhancement 
 

No
Yes

Auto-Volume/Night Mode 
 

Yes
Yes

Subwoofer Level Adjustment 
 

Yes
Yes

Bass Adjustment 
 

No
Yes

Treble Adjustment 
 

No
Yes

EQ 
 

Presets
Presets

Surround Level Adjustment 
 

Yes
Yes

Rear Level Adjustment 
 

No
No

Height Level Adjustment 
 

Yes
No

Virtual Surround 
 

Yes
Yes

Show text

Connectivity

Inputs/Outputs - Bar 
 

Physical Connections Bar Photo 1  

JBL Bar 9.1 Physical Connections Bar Photo 1
Vizio M Series M51ax-J6 Physical Connections Bar Photo 1

Physical Connections Bar Photo 2  

JBL Bar 9.1 Physical Connections Bar Photo 2
Vizio M Series M51ax-J6 Physical Connections Bar Photo 2

Optical Audio In 
 

1
1

HDMI Out 
 

eARC
eARC

HDMI 2.1 Class Bandwidth 
 

No
No

Full HDMI In 
 

1
1

Analog Audio In 3.5mm (Aux) 
 

No
1

RCA In 
 

No
No

USB for Files 
 

No
1

Ethernet 
 

1
No

Subwoofer Output 
 

No
No

Show text

Audio Format Support: ARC/eARC 
 

10
10

Dolby Atmos 
 

Supported
Supported

Dolby Digital 
 

Supported
Supported

Dolby Digital Plus 
 

Supported
Supported

Dolby TrueHD 
 

Supported
Supported

DTS 
 

Supported
Supported

DTS:X 
 

Supported
Supported

DTS-HD MA 
 

Supported
Supported

PCM Channels 
 

Up To 7.1
Up To 7.1

Show text

Audio Format Support: HDMI In 
 

10
10

Dolby Atmos 
 

Supported
Supported

Dolby Digital 
 

Supported
Supported

Dolby Digital Plus 
 

Supported
Supported

Dolby TrueHD 
 

Supported
Supported

DTS 
 

Supported
Supported

DTS:X 
 

Supported
Supported

DTS-HD MA 
 

Supported
Supported

PCM Channels 
 

Up To 7.1
Up To 7.1

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 
 

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

Show text

Audio Latency: HDMI In 
 

8.1
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 
 

53 ms

Optical 
 

47 ms

Full HDMI In 
 

-53 ms

Show text

Audio Latency: Optical 
 

7.0

Optical Latency Video  

PCM-2.0 ch 
 

147 ms

Dolby Digital 
 

207 ms

Show text

Video Passthrough To TV 
 

6.3
9.0

1080p Max Refresh Rate 
 

60Hz
120Hz

1080p @ 4:4:4 Max Refresh Rate 
 

60Hz
120Hz

4k Max Refresh Rate 
 

60Hz
120Hz

4k @ 120Hz @ 10-Bit 
 

Not Supported
Not Supported

4k @ 4:4:4 Max Refresh Rate 
 

60Hz
60Hz

8k Max Refresh Rate 
 

Not Supported
30Hz

HDR10 Passthrough 
 

Yes
Yes

HDR10+ Passthrough 
 

No
Yes

Dolby Vision Passthrough 
 

Yes
Yes

HDMI Forum VRR Passthrough 
 

No
Yes

FreeSync Passthrough 
 

No
No

G-SYNC Passthrough 
 

No
No

ALLM Passthrough 
 

No
Yes

Show text

Wireless Playback 
 

10
6.0

Bluetooth 
 

Yes
Yes

Wi-Fi Playback 
 

Yes
No

Chromecast built-in 
 

Yes
No

Apple AirPlay 
 

Yes
No

Spotify Connect 
 

No
No

Show text

Additional Features

Interface 
 

Interface photo  

JBL Bar 9.1 Interface photo
Vizio M Series M51ax-J6 Interface photo

Display 
 

Yes
No

Show text

Bar Controls 
 

Controls photo  

JBL Bar 9.1 Controls photo
Vizio M Series M51ax-J6 Controls photo

Show text

Remote  

Remote photo  

JBL Bar 9.1 Remote photo
Vizio M Series M51ax-J6 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

JBL Bar 9.1

Vizio M Series M51ax-J6

Comments

  1. Comparison

JBL Bar 9.1 vs Vizio M Series M51ax-J6: Main Discussion

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