As the company got older and the industry changed from digital to film — from VHS to DVD and beyond — the Deep Tone has managed to stay relevant. The newest iteration is here to celebrate the 4K era.

Anyone who has sat in a theater in the 90s and heard the THX Deep Note knows the feeling. Before a movie even begqn, the room ...

The THX logo appearing on screen has become synonymous with the feeling of settling in for a truly cinematic experience. Developed at George Lucas’s Lucasfilm in the early 1980s for the release of ...

Instantly recognizable to movie buffs and audiophiles, THX Deep Note is the iconic sound played before DVD/Blu-ray movies and on cinema theaters with the proper certification. For many of us, it was ...

As far as I can tell, it's just a computer generated tone that runs through a bit of the musical range. The deep rumbling bass is probably the part you're picking up on.