The Rockford Fosgate P500-12P is one of the most popular all-in-one powered subwoofer systems ever made for daily-driver bass upgrades. It combines a high-output 12-inch Punch subwoofer, built-in 500-watt RMS Class-D amplifier, and vented enclosure into one compact package that works extremely well in sedans, hatchbacks, SUVs, and trucks. The biggest reasons people buy it are easy installation, strong bass output, factory-radio compatibility, and space-saving design. Main Features Built-in 500W RMS Class-D amplifier 12-inch Punch high-output woofer Vented enclosure design Quick-disconnect power and signal connectors Remote bass level control included High-level and RCA inputs Intelligent auto turn-on circuitry Variable low-pass crossover Variable phase adjustment Bass boost adjustment Heavy-duty MDF enclosure Heat-activated industrial vinyl finish Plug-and-play style installation compared to traditional amp/sub setups Specs Specification Details Woofer Size 12" Amplifier Power 500W RMS Amplifier Type Class-D Enclosure Type Ported Frequency Response 20Hz – 200Hz Low-Pass Crossover 50Hz – 200Hz Phase Control 0° – 180° Inputs RCA + Speaker Level Remote Bass Knob Included Enclosure Material 5/8" MDF Dimensions 14.96" H x 10.91" D x 7.17" Top Depth Approx. Product Weight ~33 lbs Approx. Shipping Weight ~36–42 lbs Installation Notes The P500-12P performs best with: 4-gauge OFC wiring Proper grounding Bass knob mounted near the driver Rear cargo mounting Factory or aftermarket radios