Lucasfilm THX Ultra Certified
THX has now become known as THX Ultra to differentiate it from a new product category called THX Select. THX Ultra is identical to the original Home THX specifications. Components carrying THX Ultra have met the requirements developed in order to assure the accurate reproduction of movie soundtracks.
A certification program for home theater equipment, designed to provide a base level of quality for rooms that are more than 3,000 cubic feet in size.
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THX Ultra is optimized for larger spaces up to approximately 3,000 cubic feet. It allows you to create at home the feeling of being in a THX-equipped movie theater.
THX certification designated for ultra high-end A/V gear, as opposed to THX Select, which is aimed at more moderately priced equipment; conceived for rooms of more than 2000 cubic feet. Also see: THX
Certification program for speakers, receivers, and amplifiers that assures a base level of quality and performance when played in a room that's greater than 3,000 cubic feet.