THX, the trademark of THX Ltd., is the ultimate set of standards for home theatre sound. It incorporates a series of patented electronic and loudspeaker specifications designed to bring the big theatre experience right into your home.

THX Certified Home Theatre products deliver cinema-quality picture and Hi-end sound to home environments. Through optimized audio-visual technology and speaker placement, you get a movie experience at home that's as faithful as possible to what the director intended.

Products certified by THX assure the best possible quality in music and sound reproduction.

THX Certification is the “seal of approval” for speaker quality. It is the absolute assurance that your loudspeakers will reproduce all music and film material in the way that the composer and film director respectively intended.

THX Ltd. is the founder of quality assurance programs for superior cinema presentation and the leading provider of product certification and venue design for the entertainment and consumer electronics industries.

To ensure accurate playback as the director or the producer intented.

The digital sound formats were developed for movie presentation in cinema settings. Because home environments are different to cinemas, the same THX audio standards that ensure accurate playback in theatres have been adapted for viewing movies in Blu-ray, DVD and broadcast formats at home.

Incorporating a variety of digital encoding technologies like Dolby Digital, DTS and PCM, THX Certified Home Theater products offer the most consistently accurate, trouble-free reproduction of sound. THX certified equipment offer comprehensive solutions to multichannel audio formats based on their end to end home entertainment expertise. THX certified equipment ensure:

- Very clear dialogue
- Sharply positioned sounds
- Enveloping surround sound that puts the audience inside a movie
- Thunderous bass and crystal clear highs
- Maximum contrast between quiet and loud sounds
- Smooth and continuous sound movement

THX Certification has nothing to do with the type or format of the sound information stored in the CD, Blu-ray or DVD. The high standards of a THX certified speaker determine its capability of reproducing crystal clear sound and music. In this way a THX certified loudspeaker has the same perfect behavior in any input signal.

Each THX home cinema component - processor, centre speaker, surround speaker, subwoofer, amplifier, Blu-ray player, interconnect, speaker wire, and acoustically transparent screen - solves specific problems in home cinema sound reproduction. You can use any THX home cinema product in any home cinema system. When used all together, these components work synergistically to produce an ultimate surround sound experience.

The driving force behind the establishment of THX certification was the observation that conventional audio components could not accurately reproduce film soundtracks in the home environment.

A need to correct the audible tonal and spatial errors caused by the playback of soundtracks designed in and for large cinema in the smaller environment of a home. A need to more accurately reproduce the complex and competing sound fields present in multi-channel sound playback.

Movie cinema THX certification was introduced in 1983. THX certification was developed by director George Lucas, who was dismayed with the sound quality of most cinemas. He felt that all of the directors’ efforts to stir the emotions of the audience with the use of sound and music were undermined by poorly equipped cinemas that reproduced highly distorted sound. George Lucas tasked Tomlinson Holman (then his corporate Technical Director) to develop a set of criteria that cinemas had to meet to guarantee that the soundtrack was played back just as the director intended. These criteria were named Tomlinson Holman eXperiment, or THX for short.

The home version of THX was introduced to the public in 1990. Home THX certification aims to duplicate the THX cinema sound in a home environment. The THX home cinema standard has a firm foundation in the production processes associated with all feature film material.

The THX standards are a set of minimum criteria that audio components must meet. In addition, there are many different types and levels of THX certification that components can obtain. Manufacturers of home cinema components can differentiate their products by outperforming the minimum standards specified by each certification level and therefore produce components that do not sound alike.