Vizio M21d-H8 vs Nakamichi Shockwafe Ultra 9.2 eARC review

Votes 1 1
Rating 5 5

Vizio M21d-H8 vs Nakamichi Shockwafe Ultra 9.2 eARC comparison chart

Overall
Vizio M21d-H8
5
Nakamichi Shockwafe Ultra 9.2 eARC
6.6
6
4

Vizio M21d-H8 vs Nakamichi Shockwafe Ultra 9.2 eARC review

Vizio M21d-H8
vs
Nakamichi Shockwafe Ultra 9.2 eARC

An affordable soundbar is always a good option to consider, so Vizio M21d-H8 vs Nakamichi Shockwafe Ultra 9.2 eARC comparison definitely makes sense. Based on our rating, M21d-H8 has a total rating of 5 out of 10 versus 6.6 for Shockwafe Ultra 9.2 eARC.

Audio features

Both soundbars have active amplification type. A significant difference between the units in the number of channels, the Vizio M21d-H8 has 2.1 versus 9.2.4 for the Nakamichi Shockwafe Ultra 9.2 eARC. Only the Vizio M21d-H8 has a built-in subwoofer. The Vizio M21d-H8 got our rating of 5 out of 10, and the Nakamichi Shockwafe Ultra 9.2 eARC 10 for its audio features and specs.

Streaming services

Soundbars do not have AirPlay support. Spotify support not implemented in both soundbars.

Connectivity

Both models do not have WI-FI support. Rivals from our review have Bluetooth support. The Vizio M21d-H8 has 1/1 HDMI inputs/outputs versus 3/1 of the Nakamichi Shockwafe Ultra 9.2 eARC. The HDMI Audio Return Channel (ARC) feature supports both devices. Both soundbars have a USB connector. For connectivity, the M21d-H8 received a rating of 6/10 versus 9/10, respectively. Compared soundbars have no app control. A built-in microphone is present only on the M21d-H8. Soundbars do not have Multi-room support.

Multichannel surround

Only the Shockwafe Ultra 9.2 eARC has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the Shockwafe Ultra 9.2 eARC. For multichannel surround Vizio M21d-H8 got a rating of 5, and Nakamichi Shockwafe Ultra 9.2 eARC 10 out of 10.

Advantages Vizio M21d-H8 over Nakamichi Shockwafe Ultra 9.2 eARC

  • Built-in subwoofer
  • Microphone

Advantages Nakamichi Shockwafe Ultra 9.2 eARC over Vizio M21d-H8

  • Separate subwoofer in package
  • Compatible with Dolby Atmos
  • Compatible with DTS:X
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Common

Product

Vizio M21d-H8
Nakamichi Shockwafe Ultra 9.2 eARC

Model

M21d-H8
Shockwafe Ultra 9.2 eARC

Brand

Vizio
Nakamichi

Reviews

4
0

General

Placement type

table-top, wall-mountable
table-top, wall-mountable

Connection to source

wired, wireless
wired, wireless

Soundbar buttons

power, volume down, volume up, source, Bluetooth
has not

Audio features

Built-in channels

2.1
9.2.4

Amplification type

active
active

Output power, W

1300 (overall)

Separate speaker (in package)

0
4

Separate speaker connections

has not
wireless

Subwoofer

Built-in subwoofer

Separate subwoofer (in package)

Separate subwoofer connections

wireless

Streaming services

Apple Music (AirPlay)

Amazon Music

Spotify

Other streaming services

has not
has not

Connectivity

WI-FI

Bluetooth

Ethernet (RJ45)

0
0

NFC

HDMI input/output

1/1
3/1

HDMI ARC

HDMI eARC

HDMI CEC

Optical digital input/output

1/0
1/0

USB

1 (USB 2.0)
1 (USB 2.0)

Coaxial digital input/output

0/0
1/0

Analog audio input/output (RCA)

1/0
0/0

Headphone output

0
0

Subwoofer output

0
0

Features

Voice control

Amazon Alexa, Google Assistant, Siri

App control

Microphone

Remote control

Multi-room

Multichannel surround

Dolby Atmos

Dolby (other)

Dolby Digital
Dolby TrueHD, Dolby Digital, Dolby Digital Plus

DTS:X

DTS (other)

DTS Virtual:X
DTS-HD Master Audio, DTS-HD High Resolution Audio, DTS Digital Surround

User manual

Manual

N/A
N/A

Dimensions

Size (Wx H x D), cm/in

98 x 11.4 x 18.8/39 x 5 x 7
114.3 x 7.6 x 7.8/45.5 x 3 x 3.6

Weight, kg/pounds

3/6
3.1/7.2

Other

Release year

2020
2022
Vizio M21d-H8
Nakamichi Shockwafe Ultra 9.2 eARC
Vizio M21d-H8
Nakamichi Shockwafe Ultra 9.2 eARC

Soundbars SoundStrokes Art comparison rating

  • better
  • worse
  • 5
  • 6.6
  • 5Vizio M21d-H8
  • 6.6Nakamichi Shockwafe Ultra 9.2 eARC