The RM18D4B is a black 8” Prime R1 subwoofer designed for marine watercraft or powersports applications. It features color matched grille and is UV and moisture resistant. Can be used in sealed, vented or infinite baffle installations.

• True Marine Grade compliance
• 100% UV stable ASA injection molded plastic parts
• Injection molded mineral filled polypropylene cone body with UV inhibitors
• UV and salt fog resistant Santoprene surround
• Ultra-flexible fully insulated silicone lead wire
• Proprietary corrosion resistant spring loaded push terminals
• Moisture, tear and fatigue resistant Aramid fiber spider
• Removable trim ring/grille
• Available in black or white
• 2 Year Standard Warranty