Since it pioneered high-end audio 50 years ago, Mark Levinson has kept evolving, and Lexus is the only premium car brand equipped with its audio systems. Based on the Mark Levinson PurePlay concept to create a pure, distortion-free sound, the RX is equipped with 9 Unity speakers positioned at the same height around the cabin to create a live stage effect that extends from front to back and left to right, and clear unified reproduction of mid- and high-ranges. It also features QLS (Quantum Logic Surround) sound technology to create a precise stage feel, localization, and dynamic playback, and Clari-Fi compressed audio source reproduction technology to reproduce sound as close to the original as possible.