This soundbar was replaced by the Vizio V Series V51x-J6
Channels
The Vizio V Series V51-H6 is a budget-friendly 5.1 setup released in 2020. It has a pretty neutral sound profile that's suitable for listening to many different types of audio content, and there's some extra boom in the bass. Thanks to its dedicated subwoofer, it can accurately reproduce the deep thump and rumble in the bass range, and its two satellite speakers help create a fairly immersive surround performance. However, it doesn't support Dolby Atmos content.
Our Verdict
7.6 Mixed Usage
The Vizio V51-H6 is good for mixed usage. This soundbar has a pretty neutral sound profile with a little extra boom in the bass range that's ideal for lots of different types of audio content. There's a discrete center channel to help with dialogue reproduction and two discrete surround speakers to create a more immersive surround sound. However, there's no support for Dolby Atmos content. It also lacks some more premium sound enhancement features like room correction and a graphic EQ.
Pros
-
Dialogue enhancement feature.
-
Bluetooth-compatible.
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Four EQ presets.
Cons
-
Doesn't support Atmos content.
See our Mixed Usage Recommendations
8.3 Dialogue/TV Shows
The Vizio V51-H6 is impressive for dialogue-centric content like TV shows. This 5.1 setup has a discrete center channel that helps anchor voices to a pinpoint location in the soundstage. Thanks to its balanced mid-range, voices are reproduced clearly and with detail. There's even a dialogue enhancement feature available, as well as a TruVolume mode for leveling out the volume when you watch TV at night.
Pros
-
Dialogue enhancement feature.
-
Bluetooth-compatible.
Cons
-
Not compatible with Wi-Fi or Google Chromecast.
See our Dialogue/TV Shows Recommendations
7.8 Music
The Vizio V51-H6 is very good for music. Out-of-the-box, it has a pretty neutral sound profile suitable for many different music genres, with a little extra boom in the bass range. It can get pretty loud without a lot of compression at max volume. There are some bass and treble adjustments available to help you customize its sound, too. However, it lacks some more premium sound enhancement features, like a graphic EQ.
Pros
-
Bluetooth-compatible.
-
Four EQ presets.
Cons
-
No graphic EQ.
See our Music Recommendations
7.0 Movies
The Vizio V51-H6 is decent for movies. Its dedicated subwoofer can accurately reproduce the deep thump and rumble in action-packed scenes, and dialogue is clear and detailed thanks to its balanced mid-range and discrete center channel. There are also discrete satellite speakers to help create a more immersive surround sound experience. Unfortunately, it doesn't support Dolby Atmos content.
Pros
-
Dedicated surround speakers.
Cons
-
Doesn't support Atmos content.
- 7.6 Mixed Usage
- 8.3 Dialogue/TV Shows
- 7.8 Music
- 7.0 Movies
+ Create your own
- Updated Jun 02, 2023: Converted to Test Bench 1.2. Updated the results for audio format support via ARC/eARC, HDMI In, and Optical. Added Video Passthrough to TV results as well.
- Updated Mar 07, 2023: Added cable lengths to In The Box.
- Updated Mar 06, 2023: Converted to Test Bench 1.1. With this update, we've added a Mounting test and added information aboutSubwoofer Output, Spotify Connect, and Microphone Mute.
- Updated Feb 22, 2022: Retested the setup to check the subwoofer for rumbling sound.
- Updated Dec 10, 2021: Added information for third-party voice assistant support.
- Updated Nov 18, 2021: Updated review for accuracy and clarity.
- Updated Jul 20, 2021: Confirmed no Dolby Digital+ support via ARC.
- Updated Feb 09, 2021: Fixed mistake in supported voice assistants.
- Updated Feb 09, 2021: Converted to Test Bench 1.0.
- Updated Oct 27, 2020: Review published.
- Updated Oct 22, 2020: Early access published.
- Updated Aug 10, 2020: Our testers have started testing this product.
- Updated Aug 06, 2020: The product has arrived in our lab, and our testers will start evaluating it soon.
- Updated Jul 29, 2020: We've purchased the product and are waiting for it to arrive in our lab.
Differences Between Sizes And Variants
The Vizio V51 comes in one color: Black. You can see the label for the model we tested here.
If you find another variant of this soundbar, let us know in the discussions, and we'll update our review.
Compared To Other Soundbars
The Vizio V51-H6 soundbar has a neutral, well-balanced sound suitable for lots of different audio content. While it has a similar design to the Vizio V Series V21-H8, this 5.1 setup has two satellite speakers to help create a more immersive surround sound. Unfortunately, it doesn't support Atmos content, and it doesn't have a lot of physical inputs or connectivity options.
If you're looking for more soundbars, see our recommendations for the best soundbars, the best 5.1 soundbars, and the best soundbars with a subwoofer.
Vizio M Series M51a-H6
The Vizio M Series M51a-H6 is a better soundbar than the Vizio V Series V51-H6. The M Series has a more neutral sound profile out of the boxand a better surroundperformance. It also supports Dolby Atmos content, and because it hasa Full HDMI In port, it can support 4k passthrough.
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Vizio M Series M51ax-J6
The Vizio M Series M51ax-J6 has a better performance than the Vizio V Series V51-H6. The M Series supports Dolby Atmos content, and it also has a better surroundperformance. Unlike the V Series, it hasa Full HDMI In port supportinghigh-quality passthrough.
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Vizio SB36512-F6
The Vizio SB36512-F6 is a better overall soundbar than the Vizio V Series V51-H6. The SB36512-F6 supports Atmos contentandhas a better surroundperformance. Also, it has more connectivity options, including a Full HDMI In port that allows for 4k passthrough, and Wi-Fi and Chromecast compatibility. That being said, the V Serieshas a dialogue enhancement feature, which theSB36512-F6 lacks.
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Vizio V Series V51x-J6
The Vizio V Series V51-H6 is a bit better for mixed usage than the Vizio V Series V51x-J6. The V51-H6 gets louder, and it reproduces a more extended low-bass, meaningyou can feel more thump and rumble in your audio.
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Vizio M Series M512a-H6
The Vizio M Series M512a-H6 is better than the Vizio V Series V51-H6. The M Series is better built, with better soundstage and surround performances. Unlike the V Series, it supports Atmos content and hasa Full HDMI In port.
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Sonos Arc
Depending on your listening habits, you may prefer either the Sonos Arc or the Vizio V Series V51-H6. The Vizio is a 5.1 setup that hassatellites and a dedicated subwoofer, so it reproduces a more extended low-bass. However, the 5.0.2 Sonos is better built and supports Dolby Atmos content. Also, it has a better soundstage performance and a room correction feature. You can even upgrade it to the Sonos Arc with Sub + One SL Speakers for a better performance.
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Vizio V Series V21-H8
The Vizio V Series V51-H6is a better soundbar than the Vizio V Series V21-H8. The V51-H6 is a 5.1 setup that hasdedicated satellite speakers, unlike the 2.1 V21-H8. It also has a better-balanced, more neutral sound profile.
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Sonos Beam
The Vizio V Series V51-H6 is better than the Sonos Beam. The Vizio is a 5.1 setupwith a dedicated sub and discrete satellites. It can reproduce a more extended low-bass, resulting in more thump and rumble in your audio. It also has a better surround performance. However, the 3.0 Sonos is better built with built-in voice assistant capabilities. It also has a better soundstage.
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Vizio M Series M215a-J6
The Vizio V Series V51-H6 and the Vizio M Series M215a-J6 have two different setups, and, based on your listening habits, you may prefer one over the other. The V Series is an affordable 5.1 setup with rear satellites included, unlike the M Series, so it's much better for listening to surround sound. That said, unlike the M Series, it doesn't support Dolby Atmos content. The M Series' Atmos performance isn't the most impressive, though.
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Vizio M Series M213ad-K8
The Vizio V Series V51-H6 is more versatile than the Vizio M Series M213ad-K8. The V Series looks pretty different than the standalone M Series—it adds a dedicated sub and two satellites to the package. It meansit can reproduce a more extended low-bass and performs much better with surround sound. That said, the M Series' standalone design is ideal for those without muchspace. It supports Atmos content, too, unlike the V Series.
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Sonos Beam (Gen 2)
The Vizio V Series V51-H6 and the Sonos Beam (Gen 2) are two very different soundbars. The Vizio is a 5.1 setup with a dedicated sub and satellites included. It can reproduce a more extended low-bass andget louder than the Sonos. However, some users may prefer the Sonos' small, standalone design. The Sonos is better built, and unlike the Vizio, it supports Atmos content. It also has a better soundstage despite its smaller size.
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Vizio V Series V21x-J8
The 5.1 Vizio V Series V51-H6 is a better soundbar than the 2.1 Vizio V Series V21x-J8. The V51-H6 gets louder, and it has better center and surroundperformances. Also, some listeners may prefer its more neutral out-of-the-box sound compared to the V21x-J8's more bass-heavy sound profile.
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Vizio SB46514-F6
The Vizio SB46514-F6 is a bit better for mixed usage than the Vizio V Series V51-H6. The SB46514-F6 is a better-built 5.1.4 setup that supports Dolby Atmos content. It has a better surroundperformance, and it offers more wireless playback options. However, the V Series has more sound enhancement features, including a dialogue enhancement mode.
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Vizio M Series M21d-H8R
The Vizio V Series V51-H6 is a better soundbar than the Vizio M-Series M21d-H8R. The V Series is a 5.1 setup that has a dedicated subwoofer and two surround speakers, and it has better center and surround channel performances. It also has a more neutral sound profileandgets louder with less compression at max volume. That said, the 2.1 M-Series is better builtand hasa Full HDMI In port that supports 4k passthrough.
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Samsung HW-B450
The Vizio V Series V51-H6 is better than the Samsung HW-B450. They're both budget-friendly setups, but the 5.1 Vizio is more versatile. Unlike the Samsung soundbar, it hasdiscrete satellites and HDMI connectivity. Its surround performance is better, too, and it can reproduce a more extended low-bass.
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Samsung HW-A650
The Vizio V Series V51-H6 is better than the Samsung HW-A650. The Vizio is a 5.1 setup that reproduces a more extended low-bass. It also gets louder with less compression at max volume, and it has a better surroundperformance. However, the 3.1 Samsung is better built with a graphic EQ for sound customization.
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JBL Bar 5.1 Surround
The Vizio V Series V51-H6 is better than the JBL Bar 5.1 Surround. The Vizio has better soundstage and surround performances, and it gets louder. That said, the JBL is better built andhasa Full HDMI In port that supports high-quality passthrough.
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Samsung HW-Q60T
The Vizio V Series V51-H6is a better overall soundbar than the Samsung HW-Q60T. The Vizio hastwo dedicated satellite speakers thatprovide a more immersive surround sound. It also has a better-balanced default sound profile. However, the Samsung is better built andhasa graphic EQ and a Full HDMI In port, which the Vizio lacks.
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Samsung HW-Q60R
The Vizio V Series V51-H6is a better overall soundbar than the Samsung HW-Q60R. The Vizio has two satellite speakers, whichprovide a more immersive surround sound. It also has a better-balanced sound profile out of the box. However, the Samsung is better built, and it hasa graphic EQ and a Full HDMI In port, unlike the Vizio.
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Samsung HW-Q59CT
The Vizio V Series V51-H6 is better than the Samsung HW-Q59CT. The Vizio hasdiscrete satellites and offers a better surroundperformance. It can also reproduce a more extended low-bassandcan get louder with less compression at max volume. However, the Samsung is better built with a Full HDMI In port for high-quality passthrough.
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Sony HT-S350
The Vizio V Series V51-H6 is better than the Sony HT-S350. The Vizio is a 5.1 setup that hasdiscrete satellites. It isn't as well-built as the 2.1 Sonybutoffers better center and surround performances. It can also reproduce a more extended low-bass. Some users may also prefer its more neutral, balanced sound out of the box.
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Polk Audio Signa S2
The Vizio V Series V51-H6 is better than the Polk Audio Signa S2. The Vizio is a 5.1 setup that hasdiscrete satellites, unlike the 2.1 Polk Audio. It reproduces a more extended low-bass. Also, it has better center and surround performances.
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Samsung HW-Q65T
The Vizio V Series V51-H6 is a better soundbar than the Samsung HW-Q65T. The Vizio has a more extended low-bass andneutral sound profile out of the box. However, the Samsung is better built with a graphic EQ andFull HDMI In port.
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Samsung HW-S60A
The Vizio V Series V51-H6 is better for most uses than the Samsung HW-S60A. The Vizio is a 5.1 setup with a dedicated sub and satellites. It can reproduce a more extended low-bass andgets louder with less compression at max volume. However, the Samsung is still a solid choice for users who prefer a standalone soundbar. It's better built,hassupport for more wireless playback options, and has built-in voice assistant capabilities.
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Samsung HW-Q600A
Depending on your listening habits, you may prefer either the Vizio V Series V51-H6 or the Samsung HW-Q600A. The Vizio is a 5.1 setup with discrete satellites that offers a better surroundperformance. It can get louder andreproduce a more extended low-bass. However, if you want a bar that supports Dolby Atmos content, you should check out the Samsung. This 3.1.2 setup is better builtandhas a graphic EQ for sound customization.
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Samsung HW-A550
The Vizio V Series V51-H6 is better than the Samsung HW-A550. The Vizio is a 5.1 setup that hasdiscrete satellite speakers. It has better center and surround performances. That said, the 2.1 Samsung is better built. It also has a graphic EQ, which some listeners may prefer for sound customization.
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Samsung HW-Q700A
The Vizio V Series V51-H6 is marginally better for mixed usage than the Samsung HW-Q700A. The Vizio is a 5.1 setup with discrete satellites that can reproduce a more extended low-bass. It has better surround and soundstage performances, and it can get louder. However, it doesn't support Dolby Atmos content like the Samsung. Also, the Samsung is better built.
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Samsung HW-A450
The Vizio V Series V51-H6 is better than the Samsung HW-A450. The Vizio is a 5.1 setup with discrete satellites that's better built. It has better center and surround performances, and it gets louder. Also, unlike the Samsung soundbar, it has an HDMI ARC port.
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Klipsch Cinema 600
Depending on your listening habits, you may prefer either the Vizio V Series V51-H6 or the Klipsch Cinema 600. The Vizio is better built with discrete satellite speakers. It hasbetter surroundperformance and more sound enhancement featureslike EQ presets and bass and treble adjustments. That said, the 3.1 Klipsch has a better stereo soundstage performance.
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+ Show more
Test Results
Design
The Vizio V51-H6 is a simple, sleek soundbar. It's mostly made of plastic, with a thin fabric covering the front and the sides of the bar.
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Design
Sub Wireless
Enclosure
The sub is mostly made of plastic. It sits on four plastic pegs with rubber grips. There's a port on the back of the sub, and the speaker is underneath.
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Design
Satellite Wireless
The Vizio V51-H6 comes with two satellite speakers, which are mostly made of plastic with fabric covering the front and sides.
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Design
Width 36.0" (91.5 cm)
Height 2.2" (5.7 cm)
Depth 3.2" (8.2 cm)
The bar isn't too wide, but it might not fit between the legs of a 55 inch TV. However, it isn't very tall, so it shouldn't block your TV screen unless your TV sits flush on the table.
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Design
Width 8.3" (21.2 cm)
Height 9.8" (25.0 cm)
Depth 8.3" (21.2 cm)
The subwoofer is similar to the subwoofer for the Vizio V Series V21-H8, and it's shorter in height than the average desktop PC.
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Design
Width 4.8" (12.1 cm)
Height 2.2" (5.7 cm)
Depth 3.2" (8.2 cm)
The satellites aren't very big. They don't need to be wired to a power source, but they need to be connected to the sub to function.
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Design
Mountable Bar
Bar Brackets Included
Mountable Satellites
Satellite Brackets Included
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7.0 Design
The Vizio V51-H6 has a decent build quality. The components are mostly made of plastic, which feels solid and durable. However, the thin fabric on the front and sides of the bar and the satellite speakers seems like it could get dirty or rip easily.
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Design
- Manuals
- Wall-mount template
- Wall-mount brackets with screws
- 4x cable ties
- Optical cable (3.9 ft / 1.2m)
- HDMI cable (6.2 ft / 1.9m)
- 2x surround speaker audio cables (26 ft / 8.0m)
- Power cables for sub (8.5 ft / 2.6m)
- Power cable for bar (4.9 ft / 1.5m)
- 3.5mm to 3.5mm audio cable (4.9 ft / 1.5m)
- Stereo RCA to 3.5mm cable (4.9 ft / 1.5m)
- Remote with 2x AAA batteries
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8.1 Sound
Tested Preset
Slope
Std. Err.
Channels
Low-Frequency Extension
High-Frequency Extension
Update 02/22/2022: There've been quite a few reports of the subwoofer emitting a rumbling sound when audio is played at lower levels or when no sound is being played at all. The setup was retested at different volume levels, and with every EQ mode, via Bluetooth and ARC. However, the issue never presented itself on our unit, even after updating the setup's firmware to its latest version (2.0.3.0).
The Vizio V51-H6 has a great stereo frequency response. It has a pretty neutral sound profile suitable for listening to many different types of audio content, and there's a little extra boom in the bass range. Thanks to its dedicated subwoofer, it can accurately reproduce the deep thump and rumble found in bass-heavy music and action-packed movies. There are also some bass and treble adjustments so you can customize its sound.
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LEARN ABOUT STEREO FREQUENCY RESPONSE
8.1 Sound
Suggested Preset
Suggested Bass Setting
Suggested Treble Setting
Slope
Std. Err.
Low-Frequency Extension
High-Frequency Extension
With calibration, the Vizio V51-H6 has an impressive stereo frequency response. With its bass set to '-2', it has a very neutral, balanced sound profile that's suitable for listening to lots of different types of audio content. Its bass range is more balanced, so there's less boom in the bass.
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7.0 Sound
Crosstalk Error
The Vizio V51-H6 has a decent stereo soundstage. The soundstage is about as wide as the bar itself, but it doesn't have any tricks to make it sound wider than that. Its focus is good, so objects like voices and instruments seem to come from an accurate, pinpoint location rather than a general area. For a soundbar with a better stereo soundstage, check out the Vizio M Series M512a-H6.
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LEARN ABOUT STEREO SOUNDSTAGE
8.5 Sound
SPL @ Max Volume
DRC @ Max Volume
The Vizio V51-H6 has excellent stereo dynamics performance. This bar can get loud without many compression artifacts present, making it suitable for large rooms and crowded environments like parties.
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LEARN ABOUT STEREO DYNAMICS
7.3 Sound
Weighted THD @ 80dB
Weighted THD @ Max Volume
The Vizio V51-H6 has a decent THD performance. At normal listening volumes, the THD falls mostly within good limits, resulting in clean and pure sound reproduction. At max volume, there's a small jump in distortion, especially in the bass range. However, this distortion may not be audible with real-life content.
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LEARN ABOUT STEREO TOTAL HARMONIC DISTORTION
8.1 Sound
Localization
Slope
Std. Err.
SPL @ Max Volume
Weighted THD @ 80dB
Weighted THD @ Max Volume
The Vizio V51-H6 has a great center channel performance. This 5.1 setup has a discrete center channel, so voices are anchored to an accurate, pinpoint location in the soundstage. Its frequency response is slightly bass-heavy, but you likely don't notice it since there usually isn't a lot of bass reproduced on the center channel.
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LEARN ABOUT CENTER
6.7 Sound
Localization
Slope
Std. Err.
SPL @ Max Volume
Weighted THD @ 80dB
Weighted THD @ Max Volume
7.1 Rears
The Vizio V Series 5.1 soundbar has a fair surrounds performance. It comes with two discrete satellite speakers, so sound objects like voices are clearly and accurately reproduced in the soundstage. Audio seems like it's coming from all around you, rather than just from speakers placed in front of you. Unfortunately, the frequency response is quite bass-heavy, resulting in a muddy, boomy sound that's overwhelming for some listeners.
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LEARN ABOUT SURROUND 5.1
0 Sound
Localization
Slope
Std. Err.
SPL @ Max Volume
Weighted THD @ 80dB
Weighted THD @ Max Volume
If you want a 5.1 soundbar that supports Atmos, check out the Vizio M Series M51a-H6.
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LEARN ABOUT HEIGHT (ATMOS)
7.1 Sound
Room Correction
Dialogue Enhancement
Auto-Volume/Night Mode
Subwoofer Level Adjustment
Bass Adjustment
Treble Adjustment
EQ
Surround Level Adjustment
Rear Level Adjustment
Height Level Adjustment
Virtual Surround
The Vizio V51-H6 has a decent selection of sound enhancement features. It offers four EQ presets to help you adjust the bar's sound to your liking: 'Movie', 'Music', 'Direct', and 'Game'. There's a dialogue enhancement feature to help make voices sound clearer and more crisp and a TruVolume feature that provides a consistent volume level across different programs. Unfortunately, it doesn't have a room correction feature, so it may sound different depending on the room you use it in.
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LEARN ABOUT SOUND ENHANCEMENT FEATURES
Connectivity
Optical Audio In
HDMI Out
HDMI 2.1 Class Bandwidth
Full HDMI In
Analog Audio In 3.5mm (Aux)
RCA In
USB for Files
Ethernet
Subwoofer Output
The Vizio V51-H6 has several inputs, including a 3.5mm AUX port, which allows you to connect older devices to the bar using a wired connection. Unlike the Samsung HW-B450, it has HDMI connections, too. However, there isn't a Full HDMI In port, so you can't use the bar as a hub between your devices.
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6.3 Connectivity
Dolby Atmos
Dolby Digital
Dolby Digital Plus
Dolby TrueHD
DTS
DTS:X
DTS-HD MA
PCM Channels
Update 07/20/2021: Following user feedback, we retested this soundbar using our new testing methodology. We confirmed that this soundbar doesn't support Dolby Digital+ via ARC.
Over its HDMI ARC port, this bar supports some of the most common formats for streaming platforms and Blu-ray discs, including Dolby Digital and DTS. However, it doesn't support lossless or object-based formats like Dolby Atmos.
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0 Connectivity
Dolby Atmos
Dolby Digital
Dolby Digital Plus
Dolby TrueHD
DTS
DTS:X
DTS-HD MA
PCM Channels
—
10 Connectivity
Dolby Digital
DTS
PCM Channels
The Vizio V51-H6 supports Dolby Digital, the most common surround sound format often found on Blu-rays and streaming platforms. It also supports DTS content.
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8.7 Connectivity
ARC
Optical
Full HDMI In
The Vizio V51-H6 has an excellent latency performance. It has fairly low latency, so the audio you hear appears in sync with the video you see. As a result, it's suitable for watching videos over these connections. It's important to remember that some apps and TVs can compensate for latency differently, so your real-world experience may vary.
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LEARN ABOUT LATENCY
0 Connectivity
1080p Max Refresh Rate
1080p @ 4:4:4 Max Refresh Rate
4k Max Refresh Rate
4k @ 120Hz @ 10-Bit
4k @ 4:4:4 Max Refresh Rate
8k Max Refresh Rate
HDR10 Passthrough
HDR10+ Passthrough
Dolby Vision Passthrough
HDMI Forum VRR Passthrough
FreeSync Passthrough
G-SYNC Passthrough
ALLM Passthrough
The Vizio V51-H6 doesn't have an HDMI In port, so it doesn't support 4k passthrough.
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6.0 Connectivity
Bluetooth
Wi-Fi Playback
Chromecast built-in
Apple AirPlay
Spotify Connect
The Vizio V51-H6 supports Bluetooth connectivity, so you can wirelessly stream audio from your mobile device to the bar.
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Additional Features
Display
The Vizio V51-H6 doesn't have a display, but there's a set of vertical lights on the left side of the bar that flashes depending on your settings. There's also audio feedback when you select one of the four preset modes.
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Additional Features
There are a few buttons on the top of the bar that let you control its basic functions. You can power the bar on and off, change the input, activate Bluetooth pairing mode, and adjust the volume.
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Additional Features
The remote is fairly simple, and it lets you control all of the bar's settings. There's even a display screen, unlike the remote for the Vizio V Series V21-H8.
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Additional Features
Amazon Alexa
Google Assistant
Apple Siri
Microphone Mute
Update 12/10/2021: The Vizio V Series V51-H6 doesn't have built-in voice assistant support. However, you can connect it with a third-party voice assistant device to control it with your voice. The manufacturer says that it supports both Amazon Alexa and Google Assistant-enabled devices.
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