Vizio saw my soundbar was open box excellent and canceled my claim after they said they were going to replace it with a new one. I've talked to two managers at Vizio and they try to use any excuse The prior answer just got lucky. Another Vizio answer from Vizio claimed it had a 13 month warranty from the manufacturer's date that is in the serial number at the end if there's an X or a different letter at the end that is the year x equals 2021 the two numbers behind that are the week of the year when it was manufactured that makes no sense because a lot of these open boxes may be sitting around for a while but what I found out yesterday Best Buy claims that open box carries a Best Buy in store one year warranty which is clearly not stated anywhere on the website. Vizio did not tell me anything weeks ago about a problem with the warranty and sent me a brand new remote in the mail that wasn't the problem The sound bar does not have control with multiple remotes I'm using the right HDMI cables to my Vizio OLED recently purchased. They're also is a delay in volume control with soundbar hooked up. If Best Buy clearly states when you look under open box excellent or fair or whatever is on there there's a little info logo which they tell you more about it what those conditions mean They can easily add in there that Best Buy warrants open box items themselves to save a lot of customers time. I have had bad luck with a lot of Best Buy items over the years My first Vizio elevate soundbar they sent to a different state and delivered it to an Amazon warehouse and said it was delivered to me UPS second one I ordered they canceled it with no reason didn't even let me know third one I was lucky the box was barely hanging open on the bottom. I spoke with Best Buy on the phone and conveniently get disconnected after 26 minutes which has happened many times and they have my number they did not call me back. I'm assuming they want me to gather up my 5.1.4 soundbar and take it to one of the stores to have one of them people there fix it that have heard some bad stories about with the geek squad just read the reviews on the geek squad purchases and you will see I will be looking further into it tried to call them today Best Buy and there was a 20 minute wait I'll call tomorrow. So just keep this in mind with purchasing a Vizio which I've had another sound bar that still works that is lasted me for 7 years no problem whatsoever. Vizio clearly states in its warranty that the warranty is one year from the purchase date it does claim though that clearance items refurbished items are not covered under warranty or as is items. They're updates on their website say the same. So if they start telling you something about the serial number that's ridiculous most people who purchase new or open box products don't know the serial number until they receive the item it's pretty petty a Vizio for what they do so be prepared if you buy it new you shouldn't have a problem but Vizio could still pull out that serial number manufactured date on you. My soundbar was an excellent condition it looked like it had not even been used the tape over the speakers were not pulled off and putting a different spot. The problem is Best Buy it is not listing this warranty information that they make a big bunch of sales on open box refurbished clearance. And have no set deal with Vizio because when Best Buy receives a TV on a return if it's missing the remote and they catch it they charge the customer for that remote and then sell it to some person that buys it and I've read reviews customers buying open box excellent and not having legs for the TV and Best Buy telling them to call Vizio well Vizio tells me that's what they do Best Buy should not take the return back if it's missing parts. And then maybe sell the TV is refurbished instead of open box excellent. And list the warranty. This ain't my first rodeo with warranties I had them do it on my car many years ago with the engine the it took me 5 weeks but I had the engine replaced under warranty that tried to deny the claim. Hope I've helped PS this is just with Vizio it could also work the same way with Sony and other name brands or anything that Best Buy sells open box or clearance.

Vizio doesn't go by walks of power They go by decibels of sound I believe it's 128 decibels This unit does rock and I've had many stereo systems that I purchased for over 40 years. When Atmos comes out it's like a monster.

It is 802.11n that the sound bar broadcast to the subwoofer only.

Turn center speaker all the way up with your remote. Make sure your virtual x is off on remote that will distort the center channel. If you put your volume leveler to on it boosts the volume up. That should fix your problem. If you're hooking it to your HDMI arc from your TV to the sound bar would be best if you're putting it any other way you may have to have your volume all the way up on your TV then raise the volume on the soundbar. Try also plugging in a example fire TV stick I have the max 4K plug that directly into your sound bar HDMI 1 and have the arc going to your TV and control the Vizio elevate and you should have great volume with that if you're not getting it. I would call Vizio. Hope I've helped