"The Can-Am JL Audio System - Level 3 is expertly tuned and DSP calibrated for exceptional sound in relation to the audio system configuration. Digital signal processing (DSP) technology makes a noticeable difference in sound quality, taking car audio systems to the next level. DSP allows precise equalization, time alignment, crossover filters, bass boost and more, optimizing the audio signal for the best sound quality. Made using premium JL Audio components, including four 6.5"" (165 mm) speakers (two dash and two surround speakers). Control your music with Bluetooth connectivity. Can-Am JL Audio Amplifier included (715009229) with 280 watts. Compatible with the pre-wired Can-Am JL Audio Subwoofer & Amplifier Kit (715008094) for quick, easy installation. Add the Can-Am JL Audio Roof (715009224 or 715009223) to enhance the performance. Requires the Can-Am JL Audio Source Unit (715010002) for vehicles without 10.25'' Color Touchscreen Display and installed in the center dashboard for a car like experience. Requires the Cable Cover and Roof Power Cable Kit (715010489) for installation. Vol Up/Down Switch (710010952) can be added to control volume separate from the Touchscreen control."