Woofer: The R1-1X12 enclosure is loaded with a single Rockford Fosgate Prime R1S4-12 subwoofer. Rockford Fosgate Prime R1-2X12 • Peak Power: 800W , RMS Power: 400W • Stamped Steel Basket • CEA-2031 Compliant Speaker • 5/8" Medium Density Fiberboard • Dimensions: 14.37"D x 34.06"W x 12.51"H Rockford Fosgate PRIME R1S412 • 150W 12" R1 Prime Single 4-ohm Subwoofer • 300W Peak • 150W RMS • Parabolic polypropylene cone woofer • Butyl rubber surround • 2" 4-Layer voice coil • Anodized … The R1S4-12 is a 12-inch, 4-ohm single voice coil subwoofer with a fiber reinforced painted paper-pulp … Woofer: The R1-2X12 is loaded with two Rockford Fosgate Prime R1S4-12 subwoofers. Rockford Fosgate Prime R1-2X12 • 800W Peak Dual 12" R1 Prime Series Subwoofer Loaded Enclosure • Peak Power: 800W RMS Power: 400W • Stamped Steel Basket • CEA-2031 Compliant Speaker • 5/8" Medium Density Fiberboard • Dimensions: 14.37"D x 34.06"W x 12… Each R1S4-12 is a 12", 4Ω, single voice coil subwoofer with a fiber reinforced painted paper-pulp cone and compressed … Rockford Fosgate Prime R1-1X12 • Single 12" 4 ohm Prime Loaded Subwoofer Box/Enclosure • 400W Peak • 200W RMS • Impedance: 4 ohms • Spring Post Connectors • 12" Sealed Enclosure