Vizio M21d-H8 vs VIZIO M51ax-J6 review

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l would like to share my experience after comparing and testing two soundbars – Vizio M21d-H8 vs VIZIO M51ax-J6. The Vizio M21d-H8 was rated 5, while the VIZIO M51ax-J6 has a rating 5.4. The soundbars are equipped with a different number of buttons, power, volume down, volume up, source, Bluetooth for the M21d-H8 and power, source, demo, volume down, volume up for the M51ax-J6.

Audio features

Each of the models under consideration has active amplification type. A noticeable difference is the number of channels that M21d-H8 has 2.1 and M51ax-J6 has 5.1. A built-in subwoofer is available only in the Vizio M21d-H8. Rate 5 out of 10 received the Vizio M21d-H8 for audio features and specs, but the VIZIO M51ax-J6 received 7 out of 10.

Streaming services

Soundbars do not have AirPlay support. The units in this comparison do not support Spotify.

Connectivity

Both models do not have a wireless Wi-Fi interface. Soundbars from this comparison have Bluetooth support. 1/1 HDMI inputs/outputs are in each of soundbars. As in the M21d-H8, so in the M51ax-J6 there is the HDMI Audio Return Channel (ARC). Connecting devices via USB is possible in both models. We rated the connectivity of the M21d-H8 at 6 out of 10, while the M51ax-J6 was rated 8/10. None of these soundbars can be controlled using the app. The Vizio M21d-H8 equipped with a microphone. The models under consideration cannot become part of a multiroom system.

Multichannel surround

Dolby Atmos audio decoder is onboard the M51ax-J6. The M51ax-J6 can work with surround sound due to DTS:X support. The M21d-H8 was rated 5/10, while the M51ax-J6 received a mark of 8/10 for multichannel surround.

Advantages Vizio M21d-H8 over VIZIO M51ax-J6

Advantages VIZIO M51ax-J6 over Vizio M21d-H8