Over 50 years of experience. For more than 50 years, QSC has been developing technologies and solutions for cinemas, theaters, amusement parks, and remote communication solutions. Renowned worldwide for the quality of its products and solutions, QSC has quickly earned the trust of its customers. High performance, superior quality, and reliability are the strengths that make the QSC brand used by millions of professionals around the world. By choosing QSC, you are assured of choosing excellence.