Dolby Atmos vs DTS:X: Which Matters for Soundbars?

What Dolby Atmos and DTS:X Mean on a Soundbar Listing

When you see "Dolby Atmos" or "DTS:X" in a soundbar listing title or bullet list, it means the soundbar can decode that specific audio format. Both are object-based formats that carry height and surround information, allowing the soundbar to place sounds in a three-dimensional space around you. The listing term tells you the bar is designed to work with content mixed in that format.

Dolby Atmos is far more common on soundbar listings. Many streaming services, Blu-ray discs, and video games include Atmos soundtracks. DTS:X appears on fewer listings but is still offered by several brands, often on models that also support Atmos. For example, Denon lists "Dolby Atmos" and "DTS:X" on its soundbar product pages, and Polk Audio mentions "Dolby Atmos and DTS:X compatibility" on its soundbar descriptions. Samsung also includes "Dolby Atmos" in its Q-Series soundbar titles.

How to Identify Support on a Listing

Look for the exact words "Dolby Atmos" or "DTS:X" in the listing title or the first bullet points. Some listings may say "Dolby Atmos" without mentioning DTS:X, or vice versa. If a listing does not state either format, check the maker's official product page for the full feature list. A soundbar that supports both formats will usually say so explicitly, for example "Dolby Atmos and DTS:X compatible."

If you are shopping for a soundbar that can handle the widest range of content, a listing that includes both Dolby Atmos and DTS:X gives you the most flexibility. For most buyers, however, Dolby Atmos alone covers the vast majority of movies and shows available today. For a deeper look at how these formats relate to other audio codecs, you can read the guide on audio codecs support.

What You Need for Dolby Atmos or DTS:X

To reproduce the height effects that Dolby Atmos and DTS:X provide, a soundbar needs dedicated height channels or up-firing speakers. The channel layout tells you this: a listing such as "3.1.2" or "5.1.2" includes two height channels. Soundbars without height channels may use virtual processing to simulate overhead sound, but the listing will often note "virtual" or rely on the format name alone. Our guide on channel numbers explains how to read these layouts.

The connection also matters. Dolby Atmos and DTS:X can be delivered over HDMI ARC or eARC. HDMI eARC supports higher-bandwidth lossless versions of these formats, such as Dolby TrueHD Atmos. If your TV has an HDMI eARC port, you can get the full-quality audio from Blu-ray players or streaming devices that support it. Check your TV's HDMI port labels before buying. For a comparison of ARC and eARC, see our HDMI ARC vs eARC guide.

Why Height Channels Matter

Height channels are what allow a soundbar to place sounds above you, such as rain, helicopters, or ambient effects in a movie. Dolby Atmos and DTS:X both rely on height channels to deliver their signature overhead dimension. A listing that mentions "up-firing speakers" or "height channels" tells you the bar has the physical drivers needed for these effects.

Some soundbars claim to simulate height without dedicated drivers. These are often labeled "virtual" or "virtual surround." While they can create a sense of space, the listing term alone does not tell you how convincing the effect is. This site does not compare how the two formats sound; the choice between Atmos and DTS:X depends mostly on the content you watch. To learn more about height channel speakers, see our article on height channel speakers.

Which Format Is More Common on Soundbars?

Dolby Atmos is the dominant format in the soundbar market. Most streaming services (Netflix, Disney+, Apple TV+) use Dolby Atmos, and the majority of Blu-ray releases include an Atmos track. DTS:X is less common and appears mainly on physical media from certain studios. As a result, soundbar listings overwhelmingly feature Dolby Atmos, while DTS:X is often an additional feature on higher-end models.

For a typical household that streams movies and TV shows, Dolby Atmos support is the key term to look for. If you own a large collection of Blu-rays or 4K discs that include DTS:X soundtracks, then a soundbar that lists both formats will serve you better. Our best Dolby Atmos soundbars guide can help you find listings that state Atmos support, and our best premium soundbars guide covers models that often include both formats.

Comparing the Two Formats on Stated Details

When comparing two soundbar listings, note which format each one supports. The table below summarizes what the listing terms tell you.

For a more detailed breakdown of height channel counts, the guide on Dolby Atmos height channel count provides additional information.

What to Pick for Your Situation

Use the table below to match your viewing habits to the right soundbar listing terms. You can also explore our best soundbar guide for a broad overview, or our best soundbar with rear speakers guide if you plan to add surround speakers later.

What to pick for your situation

Questions

Do I need both Dolby Atmos and DTS:X?

Not necessarily. Most content uses Dolby Atmos. If you watch many Blu-rays with DTS:X tracks, look for a soundbar that supports both formats. The best premium soundbar guide includes models that list both formats.

Can a soundbar support both formats?

Yes, some soundbars list both Dolby Atmos and DTS:X support. Check the listing or maker's page for both terms. Many models in the best Dolby Atmos soundbars guide also support DTS:X.

Is DTS:X better than Dolby Atmos?

This article cannot compare sound quality. Both are object-based formats. The choice depends on the content you watch. For a discussion of what each format means as a listing term, see the audio codecs support article.

Do I need special speakers for these formats?

Yes, you need a soundbar with height channels (up-firing or dedicated) to reproduce the overhead effects. The channel layout (e.g., 3.1.2) indicates height channels. Our channel numbers guide explains how to read these layouts.

Can I get Dolby Atmos without height speakers?

Some soundbars use virtual processing to simulate height, but the listing will state "virtual" or "Dolby Atmos" without height channels. For true overhead effects, look for height channels. Learn more in our height channel speakers article.

What connection do I need for Dolby Atmos?

HDMI ARC or eARC can carry Dolby Atmos. For lossless Atmos (TrueHD), you need HDMI eARC. Check your TV's HDMI ports. See our HDMI ARC vs eARC guide for details.

Does DTS:X require a special connection?

DTS:X can be carried over HDMI. Some soundbars support DTS:X via eARC. Check the listing for connection details. Our HDMI ARC vs eARC guide also covers DTS:X compatibility.

Where can I find more about channel layouts?

See the guide on channel numbers for how to read layouts like 3.1.2. You can also explore the Dolby Atmos height channel count article for more specific information.