{"product_id":"prime-r1-8-inch-marine-subwoofer","title":"Prime R1 8-Inch Marine Subwoofer","description":"The Rockford Fosgate RM18D4B is an 8-inch Prime R1 subwoofer engineered for demanding environments, making it ideal for marine watercraft and powersports applications. Its construction includes a 100% UV-stable ASA injection-molded plastic frame, UV and salt-fog resistant Santoprene surround, and a moisture, tear, and fatigue-resistant Aramid fiber spider. The injection-molded mineral-filled polypropylene cone body is also treated with UV inhibitors.\n\nIt offers a power handling of 150 Watts RMS and 300 Watts Max, with a dual 4-Ohm nominal impedance and a 1.5-inch aluminum voice coil. The speaker is equipped with proprietary corrosion-resistant spring-loaded push terminals and an ultra-flexible, fully insulated silicone lead wire for reliable connections.\n\nInstallation flexibility is supported by its ability to be used in sealed, vented, or infinite baffle enclosures. Additional features include a removable trim ring\/grille and a mounting depth of 3.6 inches with a 7-inch cutout diameter.\n\nThis model is noted as being discontinued, potentially replaced by the M1D4-8B. It comes with a 2-year warranty.","brand":"Rockford Fosgate","offers":[{"title":"Default Title","offer_id":52872742797624,"sku":"RM18D4B","price":129.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/store.motormia.co\/products\/prime-r1-8-inch-marine-subwoofer","provider":"MOTORMIA","version":"1.0","type":"link"}