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Set up your home theater system to ensure optimum performance.
To enjoy the best sound from your home theater, get started with our recommendations on speaker placement, room considerations, and other tips.
To describe home theater setups, audio enthusiasts use numbered designations. Here’s how to read the designation, using "5.1" and "5.1.2" as examples:
 The first digit refers to the number of traditional surround speakers (front, center, and surround). Both Dolby Atmos® and traditional channel-based surround systems use this designation.
[.1] The next digit refers to the number of powered subwoofers (sometimes called the low-frequency effects, or LFE, speakers) you can connect to your receiver. Both Dolby Atmos and traditional surround systems use this designation.
[.2] Only Dolby Atmos enabled systems use a third digit, which refers to the number of overhead or upward-firing speakers in a Dolby Atmos setup.
Typical surround sound setups have either 5.1 or 7.1 channels. A 5.1 system has left, right, and center speakers in front, with left and right surround speakers. A 7.1 system adds left and right rear surround speakers. A 9.1-channel system adds front height speakers to take advantage of Dolby Pro Logic® IIz, which derives height information from the signal.
Dolby Atmos layouts add height speakers to the traditional 5.1 and 7.1 surround sound setups. Adding two height channels creates a 5.1.2 or a 7.1.2 system. Dolby Atmos systems with four height channels are designated 5.1.4 or 7.1.4.
To add overhead sound, you can use two or four speakers mounted in or on the ceiling, or use Dolby Atmos enabled speakers that fire sound upward toward the ceiling, from where it's reflected back to the listening area.
There are also simpler systems, such as sound bars, that deliver the Dolby Atmos experience.
Dolby Atmos® enabled speakers reproduce overhead sounds in a Dolby Atmos soundtrack—with no need to mount speakers in or on the ceiling.
What Are Dolby Atmos Enabled Speakers?
Revealing the Science Behind Dolby Atmos Enabled Speakers
Behind the Scenes With Three Speaker Manufacturers
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