Question 1

How do i fix the audio delay? the audio is lagging behind the video. i have a vizio tv connected through hdmi arc. can i adjust a setting?

Accepted Answer

Both my new Hisense H9G TV and the Vizio sound bar have adjustable audio delay settings but, unfortunately, they both only worked one direction to further slow/delay the audio signal relative to the video signal.  That was the wrong direction for me, and it sounds like for you too with audio lag.  The solution for me was to plug my  Fire TV stick (used for all viewing including live TV) directly into the sound bar "HDMI In" port instead of a TV port , then connect sound bar to the TV via HDMI-ARC ports.  That eliminated the audio lag entirely and I can still control everything with my Fire TV remote alone.  Another thing to try is using optical connection from TV to sound bar and set the TV output to PCM, which might help reduce/eliminate lag.  Hopefully Vizio comes up with a firmware fix for this or better troubleshooting tips on their support site, otherwise retailers may get a bunch of these back from people without the knowledge or patience to try different things.  That said - I love my sound bar and bought another for a second TV in another room.

Question 2

What if your tv doesn't have earc hdmi?

Accepted Answer

If your TV doesn't have eARC port, then you will not be able to use the eARC port of the soundbar to enjoy audio formats higher than DD/DTS 5.1, unless you get the following model, it will let you use the eARC port of the soundbar to extract HDMI audio from all HDMI sources, such as Fire TV, Roku, Chromecast, Apple TV, blu-ray player, etc.

https://www.amazon.com/gp/product/B097NXXDG6

Get this UHDe4x1 eARC audio extractor for your eARC soundbar.

Question 3

I noticed the rear speakers are always shown horizontally but can I turn them vertically? unsure if the sound will be effected by it.

Accepted Answer

You can use the speakers either way. But you can only mount them horizontally if you use the built in mounting hardware.

Question 4

Can I use this on my 2020Vizio M 5558r without blocking the picture

Accepted Answer

It’s only about 3 1/2” high, so it will fit under the tv between the legs.

ASIN	B094TLY3FQ
Additional Features	Bluetooth, Dolby Enabled, Voice Control
Antenna Location	For Surround Sound Systems, For Televisions, For Smartphones or Tablets
Audio Driver Type	Dynamic Driver
Audio Latency	120 milliseconds
Audio Output Mode	Surround
Best Sellers Rank	#221,823 in Electronics ( See Top 100 in Electronics ) #738 in Home Audio Sound Bars
Brand	VIZIO
Built-In Media	Power Cable, Remote
Color	Gray
Compatible Devices	Smartphone, Television
Connectivity Protocol	Bluetooth
Connectivity Technology	wired, wireless
Control Method	Remote
Controller Type	Remote Control, Voice Control
Customer Package Type	Standard Packaging
Customer Reviews	4.4 4.4 out of 5 stars (1,555)
Enclosure Material	Information Not Available
Frequency Response	20000 hertz
Global Trade Identification Number	00845226019807
Is Waterproof	False
Item Dimensions D x W x H	3.5"D x 2.2"W x 36"H
Item Type Name	Sound Bar Speaker
Item Weight	2.5 pounds
Manufacturer	VIZIO
Maximum Range	10 meters
Model Name	M51ax-J6
Model Number	M51ax-J6
Mounting Type	Tabletop Mount
Number of Audio Channels	5.1
Number of Items	1
Power Source	Corded Electric
Series Number	5
Signal-to-Noise Ratio	70 db
Speaker Maximum Output Power	205 watts
Speaker Size	5 inches
Speaker Type	Soundbar
Specific Uses For Product	home cinema setup, TV audio enhancement, gaming audio, music streaming
Subwoofer Connectivity Technology	Wireless
Subwoofer Diameter	5 inches
UPC	845226019807
Warranty Description	1 Year Manufacturer
Warranty Type	Full Warranty
Wireless Technology	Bluetooth
Woofer Diameter	5 inches

VIZIO M-Series 5.1 Premium Sound Bar with Dolby Atmos, DTS:X, Bluetooth, Wireless Subwoofer and Alexa Compatibility, M51ax-J6, 2022 Model

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