The sound is widely known as the THX Deep Note, the audio logo for THX, the theater sound system company founded by Lucasfilm. It was created in 1983 by James A. Moorer and became closely associated with cinema preshows and home video intros. Online, it spread beyond movie fans because the long buildup and explosive finish work perfectly as a loud reveal gag. It is still popular because almost everyone recognizes the feeling of that booming theater intro, even in short meme edits.