The PowerBass XL-1240MF 12" 250W RMS XL-SERIES SVC 4-OHM Marine Audio Subwoofer is a high-quality marine audio subwoofer designed for marine environments. With a power output of 250W RMS, this subwoofer delivers powerful sound performance. Its 12" size and 4-ohm impedance make it ideal for marine audio systems. Made by PowerBass, a trusted brand in marine audio, this subwoofer is a reliable and durable option for enhancing your marine audio experience.