Rockford Fosgate P1S4-15 15 500W 4-Ohm Impedance Punch P1 SVC Subwoofer Sub

? Known as "The Woofer of Choice" for fanatic car audio systems. the P1 series is the first in a family of world-famous subwoofers called "The Punch" ? The Punch P1S4-15 is a 15 4-Ohm SVC (single voice coil) subwoofer with 250 Watts RMS / 500 Watts Max power handling and custom 10-AWG nickel plated push terminals ? Featuring a kevlar fiber reinforced paper cone that deliver bass impact you can feel. and our proprietary spider plateau venting design provides cooling of the voice coil to increase the woofer life ? Dimensions: 18 x 18 x 10.5 inches; Mounting depth: 6.98 inches ? Famous Rockford Fosgate build quality with a full 1-year warranty when purchased from an authorized Rockford Fosgate reseller ? Fs: 23 Hz ? Re: 3.60 Ohms ? Le: 3.14 mH ? QMS: 3.20 ? QES: 0.62 ? QTS: 0.55 ? Vas: 191.5 Liters ? SD: 876 cm2 ? SPL: 87 dB @ 1w/1m ? Xmax: 9.0 millimeters ? Woofer displacement: 0.148 cubic feet ? Cutout diameter: 13.85 inches ? CEA 2031 compliant ? Klippel verified ? Stitched tinsel leads ? Anodized aluminum voice coil former ? FlexFit basket ? Dimensions: 15 inches ? Weight: 8.6 pounds ? Manufacturer warranty: 1-year warrantyRockford Fosgate P1S4-15 Punch P1 SVC 4 Ohm 15-Inch 250 Watts RMS 500 Watts Peak Subwoofer