Product Comparison: VIZIO SB4551-D5 vs VIZIO SB4051-D5


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General Specifications
Brand
VIZIO
VIZIO
Model
SB4551-D5
SB4051-D5
Origin
China
China
About the Product
Introducing the all-new VIZIO Smart Cast 45” 5.1 Sound Bar System. The included wireless subwoofer and rear satellite speakers deliver fully immersive 5.1 true surround sound at levels up to 104 dB2. Our new slim wireless subwoofer fits conveniently beneath or beside your sofa.
Introducing the all new VIZIO Smart Cast 40? 5.1 Sound Bar System. The included wireless subwoofer and rear satellite speakers deliver fully immersive 5.1 true surround sound at levels up to 101 dB1. Our new slim wireless subwoofer fits conveniently beneath or beside your sofa.
Key Specs
Minimum Frequency Response
30 Hz
150 Hz
Maximum Frequency Response
20 kHz
20 kHz
What customers say about "Key Specs"
VIZIO SB4551-D5 45” 5.1 Slim Sound Bar System
  • Great product! Fills the entire room with sound and makes movies come to life.
  • The sound quality of build of the soundbar, woofers, and satellite speakers is great.
  • Sounds as good as any full system I have had in the past, and I have had quite a few.
  • There's a small (but annoying and noticeable) lag between the soundbar and the sub, so the beats can sound like a gallop.
  • - There are no mids-- the bar itself is bright and the sub bass is powerful, but there's nothing in between.
VIZIO SB4051-D5 Smartcast 40” 5.1 Slim Sound Bar System
  • The sub woofer is impressive for a 6" unit and produces good bass both at the low frequencies and up to the mid range level.
  • Absolutely amazing surround sound system!!! Very easy to set up, and phenomenal sound!
  • Sounds amazing and easy to control. Haven't had disconnect issues, audio lag, or even popping.
  • I listen to metal music so you can feel the double bass from the drums, guitars are clear, everything sounds good.
  • You'll be disappointed by the sound profile and frequency response (I noticed that some very low notes in certain songs could not be reproduced).
Size & Weight
Color
Black
Black
Height
2.01 in.
2 in.
Width
45 in.
40 in.
Depth
2.01 in.
2 in.
Weight
3.64 lbs.
3.42 lbs.
What customers say about "Size & Weight"
VIZIO SB4551-D5 45” 5.1 Slim Sound Bar System
  • I absolutely love the slim sub that fits under the sofa, plus it came with all cables in the box.
  • The subwoofer on this system is amazing! Deep bass, really deep. Moves a lot of air for a unit this compact.
  • The sound is pretty big for something so compact and relatively cheap. The sub shakes things up nicely.
  • The sound bar is compact and easy to mount or place on the entertainment cabinet below your TV.
  • Super clean look. surround speakers look tiny but trust me they sound decent for the size.
VIZIO SB4051-D5 Smartcast 40” 5.1 Slim Sound Bar System
  • Its strong point is the slim wireless sub-woofer that can be hidden under the couch or stood up-right with the included stand.
  • Pretty nice thump from such a compact subwoofer. Fits under the couch with no problem.
  • The subwoofer is excellent and the bass unit fits nicely under the couch without compromising sound quality.
  • The sound bar is much smaller than I expected, but has great sound! The rear surround speakers are awesome!
  • I love this sound bar system. The slim sub-woofer sits discreetly alongside our reclining love-seat.
Features
Type
Tabletop
Tabletop
Installation Type
Stand-alone, Wall-mount
Stand-alone, Wall-mount
Number of Channels
5.1
5.1
Sound Enhancing System
Dolby Digital, DTS Studio Sound, DTS TruSurround, DTS TruVolume
Dolby Digital, DTS Studio Sound, DTS TruSurround, DTS TruVolume
Extras
Slim profile subwoofer, Google Cast, DTS audio technologies, Dolby audio technologies
Slim profile subwoofer, DTS audio technologies, Dolby audio technologies, Google Cast
What customers say about "Features"
VIZIO SB4551-D5 45” 5.1 Slim Sound Bar System
  • It literally only took 5 minutes to setup and I even used one of the spare cables for another speaker we have. Very happy with this purchase.
  • I simply use my iPad to cast music to these speakers. I used the smartcast app to manage speaker settings.
  • Great sound! Very sleek and minimal. Once you tweak the EQ and app settings, it really starts to shine.
  • The remote SUCKS. You can't read it and therefore can't use it, without bright light.
  • The volume from the front sound bar is great, but voices sometimes get a little washed out unless the volume is extremely high. Equalizer adjustments don't remedy the issue.
VIZIO SB4051-D5 Smartcast 40” 5.1 Slim Sound Bar System
  • This sound system is convenient to setup and for most, will be more than adequate.
  • The App is very good and allows fine tuning of the sound to suit your taste.
  • I have the subwoofer under my couch, against my wall, and it shakes the entire room on good 5.1 supported movies!
  • All the components feel VERY high quality, with heavy aluminum end caps on all the speakers and subwoofer, and high quality metal mesh grills.
  • This is an AMAZING system, very balanced with a ton of features with the connected app!
Setting
App-Controlled
Yes
Yes
Equalizer Settings
Night mode, Bass/Tremble control
Surround sound control, Bass/Tremble control, Surround balance, Night mode, AV Delay
Connectivity
Wireless Connectivity
Blueetoth, Wi-Fi
Blueetoth, Wi-Fi
Interfaces
3.5mm stereo mini jack, RCA (Coaxial / SPDIF), Optical (Toslink), USB (for .WAV Audio Playback), HDMI, RJ45 jack, HDMI ARC
3.5mm stereo mini jack, RCA (Coaxial / SPDIF), Optical (Toslink), USB (for .WAV Audio Playback), HDMI Input, RJ45 jack, HDMI ARC
What customers say about "Connectivity"
VIZIO SB4551-D5 45” 5.1 Slim Sound Bar System
  • The included cables are a nice touch, giving you literally everything you need to get a standard TV/console/sound system hooked up.
  • Took me maybe 5 minutes to set up, with half of that installing the app on my phone and pairing the Bluetooth.
  • We love it! Music and movies sound so good coming through these! We love that we can connect our phones to the sound bar through Bluetooth and play music that way too.
  • Finally, and the most important, DO NOT use this as a receiver to a 4K TV. i.e. I plugged my PS4 Pro HDMI into the soundbar, and the bar into my 4K TV. The sound bar does not enable pass through 4K.
  • The bluetooth doesn't work after the initial setup. We had to install an auxiliary bluetooth receiver in a different input as a workaround.
VIZIO SB4051-D5 Smartcast 40” 5.1 Slim Sound Bar System
  • The soundbar receives the audio input and has a wireless connection to the sub. The sub-woofer has its own power cord and connects to the two rear satellite speakers.
  • The system connects to your WiFi system so firmware updates as well as access to other electronic devices is possible.
  • Bluetooth connection is easy and trouble free. I bought a refurbished unit which showed no damage and worked perfectly out of the box.
  • The sub-woofer is clear and does not distort, and the modern WiFi casting and HDMI ARC features are a sure improvement.
  • It sounds great, but (according to VIZIO tech support) it has an issue with the Bluetooth connection between the sound bar and the subwoofer.
Warranty / Certifications
Manufacturer Warranty
1 year(s)
1 year(s)
Certifications
CE
CE
Other Information
Manufacturer
MSRP
499.99 $
429.99 $


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