Rockford Fosgate P1S4-15 Punch 15" P1 4-Ohm SVC Subwoofer

Rockford Fosgate P1 15" are the first in a family of world famous subwoofers called "The Punch". During their inception in the 1980's, they quickly became "The Woofer of Choice" for fanatic car audio systems, with a continued tradition today. Kevlar fiber reinforced paper cones deliver bass impact you can feel, and our VAST technology increases surface cone area up to 25%. Best in standard sealed and vented enclosures. Includes soft touch ABS tri trim ring. Linear spider with embedded 16 AWG tinsel leads High-temp voice coil with spun-laced Nomex® re-inforcement collar Kevlar fiber reinforced paper cone StampCast basket with integrated spider venting Soft touch ABS trim ring with optional grille Custom 10-AWG nickel plated push terminals Extended pole piece and bumped vented backplate Protective PVC textured magnet cover. Speaker ConnectorDual 10 AWG compression Mounting Depth6.98 in. (177.2 mm) CEA-2031 CompliantCEA-2031 Guidelines Woofer Displacement0.148 cu. ft. (4.2 Liters) Re (Ohms)3.60 Sd (cm2)876 Size15" Nominal Impedance4-Ohm Power Handling (Watts RMS)250 Watts RMS 500 Watts Max Voice Coil Diameter2.0" (51.6 mm) Shipping Weight16.3 Lbs. (7.39 kg) SPL (dB @ 1w/1m)87 Fs (Hz)23 Qts0.55 Qes0.62 Qms3.20 Vas (Liters)191.5 Cutout Diameter13.85 in. (351.8 mm) Le (mH)3.14 Magnet Weight (oz)60 oz. (1.70 kg.) Xmax (mm)9.0 Subwoofer TypeStandard Voice Coil TypeSingle Voice Coil Sealed Box Volume (Vb)1.58 cu. ft. (44.7 Liters) Vented Box Volume (Vb)2.66 cu. ft. (75.3 Liters)