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Style:4-Ohm  |  Product Packaging:Standard Packaging Product Description Since day one, we have spearheaded the car audio revolution. Nothing has changed. Rockford Fosgate is still the global leader in audio innovation and your passion is our purpose. We engineer the best audio systems for your lifestyle! Amazon.com Rockford Fosgate has always delivered the "punch" and the dual-voice-coil P2 12-inch subwoofer is no exception. Kevlar fiber reinforced paper cones kick out bass impact you can feel, along with Rockford's "VAST" technology to increase surface cone area up to 25%. The P2 subwoofers perform best in standard sealed and vented enclosures. Includes diamond cut cast aluminum trim ring, and an optional grille insert is also available. Rockford Fosgate Punch Series Subs Featuring innovative parabolic cone designs, oversized surrounds and large motor assemblies, Punch subwoofers deliver deep, loud, aggressive bass--not to mention stunning cosmetics that you'll want to show off. For over 20 years, Punch subwoofers have shown the world that big bass, extended power handling and awesome cosmetics need not cost a fortune. One listen and you'll know why it's called The PUNCH. P2D4-12 Features Punch subwoofers deliver deep, loud, aggressive bass and feature flex fit baskets for easy adjustments when mounted. Click here for a larger image Anodized aluminum voice coil formers provide excellent heat dissipation. Click here for a larger image Speaker Construction Custom 10-AWG nickel plated push terminals Diamond cut cast aluminum trim ring with optional grille Dual linear spider with embedded 16 AWG tinsel leads Extended pole piece and bumped vented backplate High-temp voice coil with spun-laced Nomex re-inforcement collar Kevlar fiber reinforced paper cone Protective PVC textured magnet cover StampCast basket with integrated spider venting Anodized Aluminum Voice Coil Former Rockford Fosgate subwoofers use anodized aluminum voice coil formers that provide superior heat dissipation (up to 100° at full power levels). Unlike traditional plastic substitutions, aluminum acts like a heat-sink to quickly dissipate thermal build-up on the voice coil. This keeps subwoofers cool during high SPL conditions. CEA-2031 Power handling on Rockford Fosgate speakers conform to CEA-2031 industry standards. This means your speaker has the capacity to handle power under continuous damand, not instantaneous power handling, that over time, can damage voice coils. Flex Fit Basket The Flex Fit frame utilizes slots (where feasible) instead of single screw sized holes. This allows slight adjustment of the speaker when mounted. Stitched Tinsel Leads Multipoint "periodic" stitched lead wire technique reduces the mass of each tinsel lead and spreads stress and strain over a greater area, significantly improving the reliability and performance of the subwoofer. These stitched tinsel leads withstand extreme duty cycles, fatigue and high current that is critical to robust design. "VAST" Surround The Vertical Attach Surround Technique significantly increases a speaker's effective radiating cone area without complicated installation issues. The result provides up to 25% more effective radiating cone area for the same model speaker. About Rockford Fosgate Setting the standard for excellence in the audio industry, the Rockford Corporation markets and distributes high-performance audio systems for the mobile audio aftermarket and OEM market. Headquartered in Tempe, Ariz., Rockford Corporation is a publicly traded company and manufactures its products under four brands: Rockford Fosgate, Rockford Acoustic Design, Lightning Audio and InstallEdge.com. P2D4-12 Specifications Size: 12 Inches Impedance: Dual 4-Ohm Power Handling: 400 Watts RMS 800 Watts Max Voice Coil Diameter: 2.25 Inches Magnet Weight: 72.8 oz. Speaker Connector: Dual 10 AWG compression SPL(1w/1m): 86 dB Woofer Displacement: 0.170" cu. ft. (4.8 Liters) Cutout Diameter: 11.25 inches Mounting Depth: 6.40 inches What's in the Box Rockford Fosgate Punch P2 P2D4-12 12-Inch DVC Subwoofer (Dual 4 Ohm), Painted Aluminum Trim Ring, Installation Hardware, User's Manual