I just purchased the HW-NW700 and while I love that I can add the 10" sub to the mix, if I'm honest, a 10" sub is probably overkill for any soundbar. I can't really hate on Samsung for downsizing to 8".. it probably integrates much better with the tiny drivers present in soundbars.
Also, Atmos fits "right as home" on a soundbar, if you ask me. Mini speakers (because soundbar).. so mini atmos.. why not? Atmos speakers are already the least demanding, w.r.t. cone size, in a home audio system. Will it be as enveloping as a true home surround system with in-ceiling speakers? Of course not. But will it work? Why not? I bet it works about as well as the up-firing Atmos modules available today that everyone seems to be jumping on. With up-firing Atmos speakers, the install is just as important as the drivers, if not more.
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