At the heart of the THX mission is the faithful reproduction of a movie soundtrack, whether in the theater or at home. A critical element in achieving that mission is a properly set-up and aligned sound system. Speaker placement and speaker levels play an important role in a home theater system’s audio performance, and the best way to be sure that both are correct is to consult a qualified professional. If your system was installed by a certified THX dealer, we recommend that you contact them if you suspect problems with your system. What THX Optimizer offers is the ability to fine-tune your system’s audio performance for specific DVD releases that offer the THX Optimizer feature.