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Just about anyone who has been in a cinema, car, or live event knows the THX Deep Note. It is the deeply resonant chord that plays at the start of any THX Certified performance.

Soon, Lucas and Holman took things to the next level—designing a cinema certification program to help every artist deliver their truest vision to the audience. THX was born and began appearing in …

For over 40 years, THX Certification set the standard for the audio and visual fidelity of entertainment experiences around the globe.

Transform traditional audio into unbelievable 360° sound. THX Spatial Audio delivers next generation audio with 3D spatial positioning of stereo and surround sound.

May 20, 2025 · Its THX ® Spatial Audio and patent-rich THX AAA™ audio technologies, and world-class THX ® Certification standards, help THX partners bring premium entertainment enjoyment to market …

THX Certified audio equipment is tested to provide reference studio-quality sound for best-in-class audio fidelity.

Unleash the full potential of THX Spatial Audio with AI-based head tracking, where the audio responds to your movements to keep the game environment in place for a more realistic experience.

Amp up your wired headphones with THX Onyx — a powerful, portable digital-to-analog (DAC) amplifier that features THX AAA technology.

Continuing its iconic Deep Note movie trailer tradition, THX unveils its newest trailer, Genesis. It's a next-gen, deeply engaging audio-visual experience