THX was dedicated on May 20, 1983, and the first trailer and Deep Note debuted on time with the release of Return of the Jedi in theaters five days later. It was billed as the first advance in motion picture loudspeaker systems since 1948.

The THX Deep Note was composed by Lucasfilm sound engineer Dr. James ‘Andy’ Moorer and was screened at the start of the 1983 premiere of Star Wars: Episode VI – Return of the Jedi. In 2015, Dr. Moorer refreshed the THX Deep Note and made it even more spell-binding for modern cinema formats.

THX Ltd. (which officially stands for "Tomlinson Holman's eXperiment") is an American company known for its namesake motion picture quality certification system (despite it being branded as a "sound system" until 1997), founded in 1983 by Tomlinson Holman and George Lucas to ensure the sound quality of the third Star Wars film Return of the Jedi.

The Deep Note is the sound trademark of THX, being a distinctive synthesized crescendo that glissandos from a relatively narrow frequency spread (about 200–400 Hz) to a broader frequency spread (of about three octaves).

If you've experienced THX in your life, you probably know the Broadway trailer, which is the most popular trailer. This classic trailer, released in the fall of 1983, was named after "Broadway Melody" (1930 Academy Award® winner for Best Picture).

THX was born and began appearing in cinemas with the release of Lucas’ next film “Star Wars Episode VI: Return of the Jedi” in 1983. From that moment forward, we’ve focused on our mission to d eliver high-quality entertainment experiences that are true to a creator’s vision to audiences everywhere and have continued to evolve our ...

Taken from an early THX demo DVD.This utterly iconic MASTERPIECE of a logo debuted on May 25, 1983 with the theatrical release of Star Wars: Episode VI - Ret...

Named after the very first film to win the Academy Award for Best Picture in 1929, "Wings" was the inaugural trailer for the THX program and debuted in May of 1983 with Return of the Jedi in the first THX theaters in Dallas and Los Angeles.

2008年8月13日 · The most recognized THX trailer. Also includes the official debut of the Deep Note (even though it premiered in the Wings trailer).

2015年9月21日 · For pleasure at the home.This fan-made reconstruction is pr...