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TCL Alto 8i vs TCL Alto 6+

Side-by-Side Comparison

    Top
    Main Differences
    Design
      Style - BarStyle - SubwooferStyle - SatellitesDimensions - BarDimensions - SubwooferDimensions - SatellitesMountingBuild QualityIn The Box
    Sound
      Stereo Frequency ResponseStereo Frequency Response With Preliminary CalibrationStereo SoundstageStereo DynamicsStereo Total Harmonic DistortionCenterSurround 5.1Height (Atmos)Sound Enhancement Features
    Connectivity
      Inputs/Outputs - BarAudio Format Support: ARC/eARCAudio Format Support: HDMI InAudio Format Support: OpticalLatencyVideo Passthrough To TVWireless Playback
    Additional Features
      InterfaceBar ControlsRemoteVoice Assistants Support
    Comments

Products

TCL Alto 8i
TCL Alto 6+

Tested using Methodology v1.1

Updated Sep 24, 2024 02:05 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.2

Updated Apr 17, 2024 02:45 PM

SEE PRICE
Amazon.com
TCL Alto 8i Picture
TCL Alto 6+ Picture
Channels
2.1
Channels
2.1

Our Verdict

TCL Alto 8i

TCL Alto 6+

The TCL Alto 8i is better than the TCL Alto 6+. The 8i has a better soundstage performance and more sound enhancement features, like bass and treble adjustments. Unlike the 6+, it supports Dolby Atmos content and has a Full HDMI In port for high-quality passthrough.

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Variants

  • Alto 8i (Black)
  • Alto 6+ (Black)

Review

See TCL Alto 8i Review
See TCL Alto 6+ Review
1 
0 

Check Price

Black
Alto 8i
SEE PRICE
Amazon.com
Black
Alto 6+
SEE PRICE
Amazon.com
Black
Alto 8i
SEE PRICE
BestBuy.com
Black
Alto 6+
SEE PRICE
BestBuy.com
Black
Alto 8i
SEE PRICE
Walmart.com
Black
Alto 6+
SEE PRICE
Walmart.com
Black
Alto 8i
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Black
Alto 6+
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Read more

Main Differences for
Mixed Usage

Threshold 

0.10

Mixed Usage 

6.8
6.5

Height (Atmos) 
 

3.1
0.0

Audio Format Support - Full HDMI In 
 

8.6
0.0

Dialogue Enhancement 
 

No
Yes

Auto-Volume/Night Mode 
 

Yes
No

Full Comparison

Design

Style - Bar  

Style photo - bar  

TCL Alto 8i Style photo - bar
TCL Alto 6+ Style photo - bar
Show Text 

Style - Subwoofer  

Style photo - sub  

TCL Alto 8i Style photo - sub
TCL Alto 6+ Style photo - sub

Sub Wireless 
 

No
Yes

Enclosure 
 

Integrated
Ported
Show Text 

Style - Satellites  

Style photo - satellites  

TCL Alto 8i Style photo - satellites
TCL Alto 6+ Style photo - satellites

Satellite Wireless 
 

No
No

Dimensions - Bar  

Dimensions photo - bar  

TCL Alto 8i Dimensions photo - bar
TCL Alto 6+ Dimensions photo - bar

Width  

39.0" (99.0 cm)
31.5" (80.0 cm)

Height  

2.6" (6.5 cm)
2.4" (6.2 cm)

Depth  

5.2" (13.3 cm)
4.2" (10.6 cm)
Show Text 

Dimensions - Subwoofer  

Dimensions photo - sub  

TCL Alto 8i Dimensions photo - sub
TCL Alto 6+ Dimensions photo - sub

Width  

N/A
8.0" (20.2 cm)

Height  

N/A
12.8" (32.4 cm)

Depth  

N/A
8.0" (20.2 cm)
Show Text 

Dimensions - Satellites  

Dimensions photo - satellites  

TCL Alto 8i Dimensions photo - satellites
TCL Alto 6+ Dimensions photo - satellites

Width  

N/A
N/A

Height  

N/A
N/A

Depth  

N/A
N/A

Mounting 
 

Bar Mounting Holes  

TCL Alto 8i Bar Mounting Holes
TCL Alto 6+ Bar Mounting Holes

Satellite Mounting Holes  

TCL Alto 8i Satellite Mounting Holes
TCL Alto 6+ Satellite Mounting Holes

Mountable Bar 
 

Yes
Yes

Bar Brackets Included 
 

Yes
Yes

Mountable Satellites 
 

No
No

Satellite Brackets Included 
 

No
No

Build Quality 
 

7.0
7.0

Build quality photo  

TCL Alto 8i Build quality photo
TCL Alto 6+ Build quality photo
Show Text 

In The Box 
 

In The Box photo   

TCL Alto 8i In The Box photo
TCL Alto 6+ In The Box photo
Show Text 
Sound

Stereo Frequency Response 
 

7.3
7.3

Stereo Setup  

TCL Alto 8i Stereo Setup
TCL Alto 6+ Stereo Setup

Raw Frequency Response  

See details
See details
 Compare in Graph Tool

Frequency Response Small  

See details
See details
 Compare in Graph Tool

Tested Preset 
 

Music
Music

Slope 
 

-1.25
-0.69

Std. Err. 
 

3.29 dB
3.40 dB

Channels 
 

2.1
2.1

Low-Frequency Extension 
 

49.0 Hz
48.3 Hz

High-Frequency Extension 
 

19.9 kHz
19.9 kHz
Show Text 

Stereo Frequency Response With Preliminary Calibration 
 

7.4
7.3

Frequency Response Calibrated  

See details
See details
 Compare in Graph Tool

Suggested Preset 
 

Music
Music

Suggested Bass Setting 
 

-2
N/A

Suggested Treble Setting 
 

3
N/A

Slope 
 

-0.15
-0.69

Std. Err. 
 

2.67 dB
3.40 dB

Low-Frequency Extension 
 

50.4 Hz
48.3 Hz

High-Frequency Extension 
 

19.9 kHz
19.9 kHz
Show Text 

Stereo Soundstage 
 

7.0
6.5

Crosstalk  

See details
See details
 Compare in Graph Tool

Crosstalk Error 
 

2.82 dB
2.55 dB
Show Text 

Stereo Dynamics 
 

7.3
8.2

Dynamic Range Compression  

See details
See details
 Compare in Graph Tool

SPL @ Max Volume 
 

95.1 dB SPL
96.1 dB SPL

DRC @ Max Volume 
 

3.03 dB
1.35 dB
Show Text 

Stereo Total Harmonic Distortion 
 

7.2
7.9

THD  

See details
See details
 Compare in Graph Tool

Weighted THD @ 80dB 
 

0.61
0.39

Weighted THD @ Max Volume 
 

2.64
1.21
Show Text 

Center 
 

6.2
6.2

Center Setup  

TCL Alto 8i Center Setup
TCL Alto 6+ Center Setup

Frequency Response  

See details
See details
 Compare in Graph Tool

Localization 
 

Phantom
Phantom

Slope 
 

-1.55
-1.61

Std. Err. 
 

3.96 dB
4.05 dB

SPL @ Max Volume 
 

89.3 dB SPL
89.1 dB SPL

Weighted THD @ 80dB 
 

0.46
0.73

Weighted THD @ Max Volume 
 

2.89
0.76
Show Text 

Surround 5.1 
 

3.4
3.7

Surround Setup  

TCL Alto 8i Surround Setup
TCL Alto 6+ Surround Setup

Frequency Response  

See details
See details
 Compare in Graph Tool

Localization 
 

Stereo (Downmix)
Stereo (Downmix)

Slope 
 

-2.24
-1.64

Std. Err. 
 

4.75 dB
4.10 dB

SPL @ Max Volume 
 

87.1 dB SPL
88.9 dB SPL

Weighted THD @ 80dB 
 

0.63
0.70

Weighted THD @ Max Volume 
 

2.77
1.30

7.1 Rears 
 

No
No
Show Text 

Height (Atmos) 
 

3.1
0.0

Height Setup  

TCL Alto 8i Height Setup
TCL Alto 6+ Height Setup

H Frequency Response  

See details
TCL Alto 6+ H Frequency Response
 Compare in Graph Tool

Localization 
 

Stereo (Downmix)
Not Supported

Slope 
 

-2.55
N/A

Std. Err. 
 

5.08 dB
N/A

SPL @ Max Volume 
 

81.5 dB SPL
N/A

Weighted THD @ 80dB 
 

1.81
N/A

Weighted THD @ Max Volume 
 

0.97
N/A
Show Text 

Sound Enhancement Features 
 

3.8
2.7

Room Correction 
 

No
No

Dialogue Enhancement 
 

No
Yes

Auto-Volume/Night Mode 
 

Yes
No

Subwoofer Level Adjustment 
 

No
No

Bass Adjustment 
 

Yes
No

Treble Adjustment 
 

Yes
No

EQ 
 

Presets
Presets

Surround Level Adjustment 
 

No
No

Rear Level Adjustment 
 

No
No

Height Level Adjustment 
 

No
No

Virtual Surround 
 

Yes
No
Show Text 
Connectivity

Inputs/Outputs - Bar 
 

Physical Connections Bar Photo 1  

TCL Alto 8i Physical Connections Bar Photo 1
TCL Alto 6+ Physical Connections Bar Photo 1

Physical Connections Bar Photo 2  

TCL Alto 8i Physical Connections Bar Photo 2
TCL Alto 6+ Physical Connections Bar Photo 2

Optical Audio In 
 

1
1

HDMI ARC 
 

1 (shared)

HDMI Out 
 

1 (shared)
ARC

HDMI 2.1 Class Bandwidth 
 

No

Full HDMI In 
 

1
No

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 
 

7.4
4.8

Dolby Atmos 
 

Yes
Not Supported

Dolby Digital 
 

Yes
Supported

Dolby Digital Plus 
 

Yes
Not Supported

Dolby TrueHD 
 

No
Not Supported

DTS 
 

No
Not Supported

DTS:X 
 

No
Not Supported

eARC 
 

No

DTS-HD MA 
 

No
Not Supported

PCM Channels 
 

2.0

5.1 PCM (eARC only) 
 

No
Show Text 

Audio Format Support: HDMI In 
 

8.6
0.0

Dolby Atmos 
 

Yes
Not Supported

Dolby Digital 
 

Yes
Not Supported

Dolby Digital Plus 
 

Yes
Not Supported

Dolby TrueHD 
 

No
Not Supported

DTS 
 

No
Not Supported

DTS:X 
 

No
Not Supported

DTS-HD MA 
 

No
Not Supported

PCM Channels 
 

Not Supported

5.1 PCM 
 

Yes
Show Text 

Audio Format Support: Optical 
 

6.0
6.5

Dolby Digital 
 

Yes
Supported

DTS 
 

No
Not Supported

PCM Channels 
 

2.0
Show Text 

Latency 
 

5.4
8.3

Latency Video  

ARC 
 

158 ms
37 ms

Optical 
 

147 ms
69 ms

Full HDMI In 
 

94 ms
N/A
Show Text 

Video Passthrough To TV 
 

0.0
0.0

1080p Max Refresh Rate 
 

Not Supported

1080p @ 4:4:4 Max Refresh Rate 
 

Not Supported

4k Max Refresh Rate 
 

Not Supported

4k @ 120Hz @ 10-Bit 
 

Not Supported

4k @ 4:4:4 Max Refresh Rate 
 

Not Supported

8k Max Refresh Rate 
 

Not Supported

HDR10 Passthrough 
 

Yes
No

HDR10+ Passthrough 
 

No

Dolby Vision Passthrough 
 

No

HDMI Forum VRR Passthrough 
 

No

4k @ 60 Hz Passthrough 
 

Yes

FreeSync Passthrough 
 

No

G-SYNC Passthrough 
 

No

ALLM Passthrough 
 

No

4k @ 60 Hz @ 10 bit Passthrough 
 

Yes

4k @ 60 Hz @ 4:4:4 Passthrough 
 

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  

TCL Alto 8i Interface photo
TCL Alto 6+ Interface photo

Display 
 

Yes
No
Show Text 

Bar Controls 
 

Controls photo  

TCL Alto 8i Controls photo
TCL Alto 6+ Controls photo
Show Text 

Remote  

Remote photo  

TCL Alto 8i Remote photo
TCL Alto 6+ Remote photo
Show Text 

Voice Assistants Support 
 

Amazon Alexa 
 

No
No

Google Assistant 
 

No
No

Apple Siri 
 

No
No

Microphone Mute 
 

No
No

Check Price

Black
Alto 8i
SEE PRICE
Amazon.com
Black
Alto 6+
SEE PRICE
Amazon.com
Black
Alto 8i
SEE PRICE
BestBuy.com
Black
Alto 6+
SEE PRICE
BestBuy.com
Black
Alto 8i
SEE PRICE
Walmart.com
Black
Alto 6+
SEE PRICE
Walmart.com
Black
Alto 8i
SEARCH
B&H
Black
Alto 6+
SEARCH
B&H
Back to Top

TCL Alto 8i

TCL Alto 6+

Comments

  1. Comparison
 • Posted 1 year ago

TCL Alto 8i vs TCL Alto 6+: Main Discussion

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