Home Theater & Entertainment Audio THX Certification for Computer Speakers or Surround Sound Systems A guide to THX certified speakers or audio systems Share Pin Email Print Martin Koller / Getty Images Audio Speakers Stereos & Receivers By Mark Casey Writer Mark Casey was a Lifewire writer who specialized in computing and technology, including reviewing PC components and peripherals. our editorial process LinkedIn Mark Casey Updated October 06, 2019 111 111 people found this article helpful THX is an acronym for "Tomlinson Holman's eXperiment." Holman created THX while he was working with Lucasfilm studio to devise a new standard for audio reproduction. This standard ensures quality and uniformity across all theater systems that would play the company's audio. THX certifies that an audio system follows strict rules for ultra-high-quality digital sound playback. These systems can be professional theater or cinema sound systems, surround sound setups, simple home theater systems, or a surround sound system just for your PC. THX Certification establishes a rigorous set of industry standards for audio reproduction. The certification means that the sound coming out of your 5.1 or 7.1 surround sound system or any other speaker is precisely as the audio engineer intended while he was recording and mixing it. Purpose of THX Certification To own a THX Certified sound system is to be positive that you hear the best sound possible, particularly if the DVD or video game you're playing is also THX Certified. However, that isn't a requirement for THX to make a big difference in your multimedia experience. When a manufacturer achieves THX Certification, its customers know that their speaker systems will reproduce professional-quality sound exactly as the audio engineer intended for the film or video game. Impact on Home Theater Systems Many films and video games carry the THX brand and logo to prove their worth as high-quality audio or video sources. However, THX Certification is most important for the actual speaker system that produces the sound, because THX source audio only matters when it is played on a system capable of reproducing it. This is why a THX Certified surround sound system is thought of as the Holy Grail for home theater enthusiasts. Recording Format Compatibility THX Certified sound reproduction does not require that audio is recorded in any particular format, whether it is Dolby Digital sound or otherwise. Rather, THX is most important at the moment that the sound is played by a speaker system. THX Certified surround sound systems such as 7.1, 5.1 or even 2.1 multimedia surround sound home theater systems play THX certified sound from computers, televisions, and video game systems. THX Certification Isn't Free Manufacturers of speaker systems must pay for product evaluation for THX Certification. Because the certification is expensive, usually only high-end products are tested for certification. Some companies — even ones with high-end products — may not choose to pay for the certification evaluation. As a result, although THX sounds systems are extremely high-quality speakers, there may be others on the market without the certification that are just as good.