Includes a pair of 8-inch marine-grade waterproof component speakers. Full-range stereo sound reproduction for rich, balanced audio. Polypropylene cone with rubber surround ensures durability and performance. Molded ABS machined basket and grill for long-lasting marine use. 180W max power and 90W RMS for powerful sound output. 4-ohm impedance with a sensitivity of 91dB. Aluminum 1.5-inch voice coil for distortion-free sound. Universal standard OEM replacement size for easy installation.