Pyramid MDC7 Marine Speakers for Sale. These 6.5-inch Waterproof speakers sound terrific and look great on any boat. Designed for life on the water, these speakers feature Polypropylene cones with rubber surrounds. Used, but in good working condition. Asking $65 per pair, or $225 for all eight speakers. Below are some of the specifications… Features: • 6.5-inch Marine Series Waterproof Speakers • Power Handling: • Peak: 240 watts per pair / 120 watts each • RMS: 80 watts per pair / 40 watts each • Frequency response: 45-16,000 Hz • Polypropylene cone material with Cloth treatment • Rubber speaker surrounds • Dual cone design • 1-inch aluminum high-temperature voice coil • 20oz. circuit magnet motor structure • Rubber magnet boot cover • 4 ohms impedance • Molded ABS, sturdy Plastic basket design • Grills included Specifications: • Speaker Size: 6.5-inch • Design: 2-way • Tweeter Design: Cone • Woofer Composition: Polypropylene • Woofer Surround: Rubber • Peak Power Handling: 120 watts • RMS Power Handling: 40 watts • Sensitivity: 90 dB • Frequency Response: 45 - 16000 Hz • Impedance (Per Voice Coil): 4 ohms • Top-Mount Depth: 2-1/2-inch • Bottom-Mount Depth: 2-5/8-inch • Cutout Dimensions: 5-5/8-inch