The Hertz HMX 7.7 S-LD-G is a premium 7.7" LED marine coaxial speaker engineered for high-quality sound and long-lasting durability in open-water environments. Part of Hertz’s Pure Marine Certified range, it meets IP65 protection standards and is tested to ASTM-D4329 for UV resistance and ASTM-B117 for salt fog operation, ensuring performance season after season. Its woofer features a polypropylene cone with UV inhibitors, co-molded Santoprene surround, and a long-throw 25mm (1") voice coil optimized for infinite baffle applications. A 1.4" neodymium magnet tweeter with a PEI dome, integrated faceplate, and acoustic lens delivers smooth, detailed highs with excellent off-axis dispersion. The sport-style grille is sound-transparent for efficient high-frequency transfer and can be painted to match your vessel. For reliability, the HMX 7.7 S-LD-G includes an aramid fiber spider with silicone-insulated lead wires, a sealed built-in crossover, and a resettable solid-state tweeter protection circuit. Gold-plated corrosion-resistant terminals maintain strong signal transfer in marine conditions. Key Features: • 7.7" polypropylene woofer with Santoprene surround • 1.4" neodymium tweeter with PEI dome and acoustic lens • Power handling: 100W RMS / 200W Peak • Frequency response: 45Hz–25kHz • Sensitivity: 91 dB SPL • IP65-rated, UV and salt fog certified • Paintable sport grille with integrated LED lighting • Gold-plated corrosion-resistant terminals Dimensions: Mounting depth 4.4" (113 mm) Weight (per speaker): 3.66 lbs (1.66 kg)