The Vizio M-Series M21d-H8R is a 2.1 soundbar with two subwoofers integrated into the bar. Its neutral, though slightly boomy sound profile makes it suitable for listening to lots of different types of audio content, and it even has a few EQ presets to help you customize its sound. Unfortunately, it can't really reproduce low-bass, so you don't feel the deep thumps and rumbles in action-packed movies or bass-heavy music. Also, while it gets loud, there's a lot of compression when you play it at max volume, which is disappointing if you like to crank up the volume at parties.
The Vizio M21d-H8R is alright for mixed usage. It has a pretty neutral, though slightly boomy sound profile that makes it suitable for listening to a wide range of audio content. Unfortunately, it lacks low-bass, so you don't really feel the deep rumbles in action-packed movie scenes. It also has to downmix surround content into stereo, and it doesn't support Dolby Atmos content. However, there are a few sound enhancement features available, which is nice.
The Vizio M21d-H8R is good for dialogue and TV shows. Even though it lacks a dedicated center channel, its balanced mid-range can still reproduce vocals clearly and accurately. It even has a dialogue enhancement feature that can make dialogue sound more clear and crisp. Since it's Bluetooth-compatible, you can also wirelessly stream podcasts and audiobooks from your phone to the bar. While it gets pretty loud, unfortunately, there's a lot of compression when you play it at max volume.
The Vizio M21d-H8R is adequate for music. It has a pretty neutral, though slightly boomy sound profile that's suitable for most music genres. However, it struggles to reproduce thumpy low-bass, which can be disappointing if you like to feel the deep rumble in bass-heavy music like EDM. There are a few EQ presets as well as bass and treble adjustment features to help you customize its sound, but it lacks a full graphic EQ. Also, while it gets loud, there's a lot of compression at max volume.
The Vizio M21d-H8R is mediocre for movies. Its balanced mid-range can reproduce clear and accurate dialogue, but it struggles to reproduce a thumpy low-bass for action-packed scenes. It gets loud, but there's a lot of compression when you play it at max volume. Also, it can play surround content, but it has to downmix it into stereo to play it. It also doesn't support Dolby Atmos content.
The Vizio M-Series M21d-H8R is a budget-level 2.1 soundbar released in 2020. It's an upgrade over the existing Vizio SB362An-F6, and it comes with an HDMI input and two integrated subwoofers. Also, as part of the company's M-Series line of soundbars, it's advertised to create a premium theater surround sound. Its main competitors are the Vizio V Series V21-H8, the Sonos Beam, and the Sony HT-X8500.
This setup doesn't come with a subwoofer. Instead, it has subwoofers integrated into the bar.
When set to its 'Music' preset, the Vizio M21d-H8R has a decent stereo frequency response. It has a pretty neutral sound profile suitable for listening to lots of different audio genres, and the extra boom in the bass range can please fans of bass-heavy music like EDM. However, it struggles to reproduce a thumpy low-bass, so you don't really feel the rumble in action-packed movie scenes. There are some EQ presets, as well as bass and treble adjustment features to help you customize its sound more to your liking.
With calibration, the Vizio M21d-H8R has a decent stereo frequency response. It still has a pretty neutral, though slightly boomy sound profile that adds a little extra warmth to your mixes. However, because it lacks a dedicated subwoofer, it still struggles to reproduce the deep thumps and rumbles from the low-bass.
The Vizio M21d-H8R has poor stereo dynamics. While it can get pretty loud, there's a lot of compression when you play it at max volume, especially in the treble range. As a result, it may not be suitable for listening to music at parties or in large rooms.
This soundbar has a very good stereo THD performance. At normal listening volumes, the THD falls mostly within good limits, resulting in a mostly clean and pure sound reproduction. At max volume, there's a small jump in distortion, but it may not be audible with real-life content.
The Vizio M21d-H8R has an adequate central channel performance. This 2.1 setup uses its left and right speakers to simulate a sound in the center, which sounds more diffused and less clear than a dedicated center speaker. That said, it still reproduces a balanced mid-range, so dialogue in TV shows is still fairly clear and accurate.
This soundbar has poor surrounds performance. It's a 2.1 setup, so it has to downmix surround content into stereo to play it. However, this doesn't produce the most accurate or clear representation of surround objects, and sound seems like it's coming from in front of you rather than from speakers placed all around you.
This soundbar doesn't support Dolby Atmos content.
The Vizio M21d-H8R has a poor selection of sound enhancement features. It comes with four EQ presets: 'Movie', 'Music', 'Dialogue', and 'Game'. There's also a TruVolume feature that provides a consistent volume level across different programs, such as commercials and TV shows. However, it lacks a full graphic EQ, and it doesn't have a room correction feature, so it may sound a bit different depending on the room you use it in.
The Vizio M21d-H8R has several inputs. There's a 3.5mm AUX port, which lets you wire older devices to the bar to listen to audio. There's also a Full HDMI In port, which lets you use the bar as a hub between different devices.
The Vizio M Series 2.1 soundbar supports some of the most common formats for streaming platforms and Blu-ray discs, including Dolby Digital and DTS. However, it doesn't support higher-end formats like Dolby Atmos.
This soundbar supports Dolby Digital content over its Full HDMI In port, but it lacks support for other higher-end formats like Dolby Atmos.
The Vizio M21d-H8R supports both Dolby Digital and DTS content via its Optical Audio In. These formats are typically found on Blu-ray discs and streaming platforms.
The Vizio M Series 2.1 soundbar has a disappointing latency performance. Its latency via Full HDMI In is low enough to be suitable for watching videos, but there's a significant delay between the picture and the audio via ARC and Optical In. However, some apps and some TVs compensate for latency differently, so your real-world experience may vary.
The Vizio M21d-H8R only supports Bluetooth connectivity, so you can stream audio from your phone to the bar wirelessly. However, you can't connect your devices to the bar using Wi-Fi, Chromecast, or Apple AirPlay.
The Vizio M21d-H8R can pass a 4k signal between your device and the soundbar.
The remote is quite simple, and it lets you control all of the bar's settings. Like the Vizio V Series V51-H6, it also has a display screen.
The Vizio M21d-H8R comes in Black, and you can see the label for the model we tested here. You can also purchase another variant called the Vizio M21d-H8, which comes with a remote control but it lacks backlighting and a display screen.
If you come across another version of this soundbar, let us know in the discussions so we can update our review.
The Vizio M Series 2.1 soundbar comes with two subwoofers integrated into the bar. It's an upgrade over the Vizio SB362An-F6, and it comes with a Full HDMI In port that supports 4k passthrough. It has a pretty neutral, though slightly boomy sound profile out-of-the-box, but it struggles to reproduce a thumpy low-bass. While it gets loud, there's a lot of compression present at max volume, so it may not be ideal to use at a crowded party. See also our recommendations for the best soundbars under $200, the best Vizio soundbars, and the best soundbars for dialogue.
The Vizio V Series V21-H8 is a better soundbar than the Vizio M-Series M21d-H8R. The V Series has a more neutral sound profile and a better soundstage performance. Also, it gets louder with much less compression at max volume. However, the M-Series is better-built, and it has a Full HDMI In port that supports 4k passthrough.
The Vizio M-Series M21d-H8R is a better soundbar than the TCL Alto 8i. The Vizio is better-built, and it has a more neutral, balanced sound profile as well as a dialogue enhancement feature. However, the TCL has a lot less compression when you play it at max volume, and it also supports Dolby Atmos content.
The Sonos Beam is a better soundbar overall than the Vizio M-Series M21d-H8R. The Sonos is better-built, and when calibrated, it has a more balanced sound profile. It also has a better soundstage performance, and it gets louder with less compression when you play it at max volume. However, the Vizio comes with some EQ presets, unlike the Sonos, and it has a Full HDMI In port that supports 4k passthrough.
The Sony HT-X8500 and the Vizio M-Series M21d-H8R are very similarly-performing 2.1 soundbars, so depending on your listening habits, you may prefer one over the other. The Vizio is better-built, and it has a more neutral sound profile out-of-the-box. However, the Sony has a lot less compression when you play it at max volume, and it can also support Dolby Atmos content, though it has to downmix it to play it.
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Black M-Series M21d-H8R |
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