An affordable soundbar is always a good option to consider, so Vizio V21-H8 vs Nakamichi Shockwafe Ultra 9.2 eARC comparison definitely makes sense. Based on our rating, V21-H8 has a total rating of 5.5 out of 10 versus 6.6 for Shockwafe Ultra 9.2 eARC.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the Vizio V21-H8 has 2.1 versus 9.2.4 for the Nakamichi Shockwafe Ultra 9.2 eARC. Competitors do not have a built-in subwoofer. The V21-H8 has a wired and wireless connection to separate subwoofer, and the Shockwafe Ultra 9.2 eARC - wireless. The Vizio V21-H8 got our rating of 6 out of 10, and the Nakamichi Shockwafe Ultra 9.2 eARC 10 for its audio features and specs.
Soundbars do not have AirPlay support. Spotify support not implemented in both soundbars.
Both models do not have WI-FI support. Rivals from our review have Bluetooth support. The Vizio V21-H8 has 0/1 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 V21-H8 received a rating of 6/10 versus 9/10, respectively. App control is available for the V21-H8. A built-in microphone is present only on the V21-H8. Soundbars do not have Multi-room support.
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 V21-H8 got a rating of 5, and Nakamichi Shockwafe Ultra 9.2 eARC 10 out of 10.