Bazooka SM10Ahp Powered Marine Audio Subwoofer Tube Sub The Bazooka Marine subwoofers bring superior Bazooka audio performance to the water. By using their award-wining tube design, Bazooka makes waterproof subwoofers that sacrifice none of the clarity and power you expect from Bazooka. The Marine series bass tubes take up a small amount of space but produce a tremendous amount of deep, rich bass with moderate input power. The new Marine series powered tubes come with built-in power amplifiers that are twice as powerful as previous models (and those really pounded out deep, powerful bass!). The amplifiers also feature 18 dB/per octave low pass electronic crossovers. Some of the features critical to the reliability and performance of the new Marine series are gold plated electrical connections, all stainless steel mounting hardware, and waterproof woofer designs. 10" Powered Bass Tubes Subwoofer Built-In Mono 150 Watt Amplifier 1.5" High power / High temp Voice Coil 28 oz. Magnet Frequency response: 39 - 250 Hz 104 dB Efficiency Power Handling: 150 watts Patented Bass Tubes Enclosure Design Water resistant Enclosure Waterproof Woofers Noise Rejecting Balanced Input Circuit Variable 60Hz - 250Hz Subwoofer Crossover Built-in 12 dB Subsonic Filter: 35 Hz Salt, Fog, and UV Certified for 5 Years Optional Accessories AvailableWhite Paint FinishDimensions: 21.1" L x 10.3" W x 12.2" H