
Samsung
Q990F
Value for movies and easy setup, but music falls flat.

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Samsung Q800c which I had prior to the LGC4. I’m very happy with it since the bar and the tv make use of Atmos and DTS .
Left and right speakers should be as far apart as you are from them. And sound from a speaker is better than 10 drivers bouncing sound off god knows what before it gets to you. Going from q800c (with the satellite speakers) to a used 5.1 setup was a massive improvement
You definitely want the rears. Buy a stand for them. I got the q800c with rears a couple years ago for 549. For that price the q990d is a steal. I wouldn't worry about it not being the 990f
At a minimum get the samsung q800. Movies with Disney, prime and apple TV sounds great on surround sound. Unfortunately Netflix wants to ridiculously charge for 4k and dolby surround. Like 29 a month
Q800 I have them and then added rear and was even better
I'd spend a bit more , a soundbar is something you'll have around for years , plus ask to try them out , when I went to buy mine I heard the base b650 and thought it was good , then I heard then q700b and I was shocked on how much more depth it had , I spend the extra 200 and bought that q700b , now I have the q700b , q800c, and q990d , and each one is better then the previous and its noticeable
I had a Samsung Q800c and Sub for a couple of years and recently upgraded to a Sonos Arc Ultra with a pair of Era100s. What a difference. The Samsung sounded like a louder TV speaker with no separation. Also since I have a Samsung TV I thought they would pair nicely. Nope. I was always re-pairing and turning it on. The Sonos Arc Ultra is so immersive and I don´t even need a sub. Get the Sonos
Rather than ¨bigger is better¨you might want to consider a soundbar with the biggest soundstage. I just got a Sonos Arc Ultra with two era 100s to replace a Samsung Q800 with rear surrounds. Even though they are similar in size the Sonos soundstage blows the Samsung out of the water.
I have an Ark and era300’s and have never experienced Atmos, it was the same with the Beam gen 2 I had !! Atmos is displayed in the app, but for the life of me it just sounded like good surround. I did have a Samsung 800c soundbar with the optional rear surrounds, now that Did sound great with very good Overhead Atmos !!

Samsung
Q990F
Value for movies and easy setup, but music falls flat.

Sonos
Beam (Gen 2)
Compact value, but virtual Atmos and app issues.

Samsung
HW-Q990D
Powerful, immersive value, but poor music and buggy software.

Sonos
Arc Ultra
Immersive Atmos and bass, but pricey and poor for music.

Samsung
Q930F
Strong value for movies, but music and HDMI 2.0 limit.

Ranked #1
Sonos - Beam (Gen 2)

Ranked #1
Samsung - Q990F

Ranked #1
Sonos - Arc Ultra

Ranked #1
Sonos - Playbar

Ranked #1
Sonos - Arc Ultra