"Designed to reproduce low-pitched audio frequencies. It can provide a fuller sound than your standard speakers and make the music more immersive. Help to create a fuller, more immersive sound experience by adding depth due to the subwoofer producing higher quality bass. Elevates your audio experience! Audio System Designed to be tough in the most demanding riding conditions. Installation & Compatibility Easy to install, this 10"" (254 mm) under-seat 250 W subwoofer enhances both the driver's and the passenger's experience. Included Includes the MX500/1 amplifier with 715010050"