WATERPROOF MARINE AUDIO SYSTEMS The MS-250 is a powered 10" subwoofer capable of delivering a true 50 watts RMS of bass power to compliment any serious audio system. Engineered for the demanding marine environment, this speaker will provide many years of full rich bass sound. A dedicated amplifier is included. (For Subwoofer without • Corrosion proof design and marine acoustics. • Internal distortion limiting • Will accept line or speaker level input. • Gain level control to match output to main system. • True 50 watts RMS power. • Input Impedance---------------40 K ohm line input 2.5K ohm speaker level input