THX is a Trusted Resource for Building Your Home Theater.

THX can help you optimize audio and video for anywhere from a cozy nook to a fully tricked out home theater. Regardless of room size, your entertainment experience should be the best one possible. Here are some considerations and product suggestions for systems of all sizes and best practices for set-up.

Diagrams for illustrative purposes only. For specific direction please consult with a THX Certified Installer

THX Certified Dominus Room Diagram

20 FT THX Certified Dominus

The THX Certified Dominus is the closest approximation to a public cinema experience that you can achieve in your own home.

  • Largest and most powerful THX Certified performance class
  • Ideal for use with immersive surround formats and 2-3 rows of seating
  • Optimal for rooms up to 184 m3 with viewing distance up to 6 m
  • Unsurpassed performance in 2-channel hi-fi listening rooms
  • Systems provide an additional 6 dB output over THX Certified Ultra systems
A diagram of a 7.1 surround sound system in a home theater with a twelve-foot viewing distance

12 FT THX Certified Ultra

Large home theaters qualify for a (7.1.4+) THX Certified Ultra System. THX Certified Ultra products bring the cinematic experience to larger home theaters, 3,000 cubic feet in size, with a viewing distance of 12 feet or greater from the screen.

Diagram of a 7.1 surround sound system in a large home theater with a ten-foot viewing distance

10 FT THX Certified Select

For medium sized rooms, we recommend a (7.1.4+) THX Certified Select System which covers spaces up to 2,000 cubic feet in size, with a ~10 foot viewing distance from the screen.

Diagram of a 5.1 surround sound system in a room with an eight-foot viewing distance

Up to 8 FT THX Certified Compact

If you have a cozy room, your options expand up to 5.1 speakers. Here, you could opt for a THX Certified Compact Speaker, Integrated System, or even Sound Bar. THX Certified Compact products are for smaller rooms, up to 1,000 cubic feet in size, with an 8 foot viewing distance from the screen.

A diagram of a small home theater with a three-foot viewing distance

Up to 3 FT THX Certified Multimedia

Say your space is a nook or a small office: you won’t have surrounds, so your best bet is a THX Certified Multimedia (desktop) speaker system.


So you’re going to set up your own system. Don’t be daunted, we’re here to help.


5.1 Surround Sound Speaker Setup


7.1 Surround Sound Speaker System Setup

In addition to the diagrams above, below we’ve provided a few #ProTips and Tricks to ensuring the best performance for the room you’ve got.

For more, check out our Setup Guides