Feel like you’ve dived into the front row of the concert, and turn the moment on with the ULT POWER SOUND series. Built for music lovers, it produces powerful deep sound designed to make your heart tremble. Prepare to feel the bass. Select from two different types of bass-emphasized sound: ULT1 for deep, low-frequency bass, or ULT2 to experience powerful bass. Enjoy precise, punchy, high-quality sound that gets you as close to the original recording as possible, with a specially designed 40 mm driver unit and Integrated Processor V1. When an original music source is compromised, it loses the high-frequency elements that add detail and richness to a track. Our Digital Sound Enhancement Engine (DSEE™) faithfully restores these to produce high-quality sound that’s closer to the original recording. Tailor sound to your personal preference. Choose from a variety of pre-sets to match sound quality with the genre of music you're listening to. Or create and save your own using the equalizer feature on the Sony Headphones Connect app.