JL Audio ACP208LG-W3v3 500W MicroSub+ Amplified Subwoofer Ported-Enclosure System with Dual 8" 8W3v3 Subwoofer Active Dual 8W3v3-0.40 Subwoofer Drivers | Power Output: RMS: 500 watts | Built-in Proprietary Class-D amplifier | High quality Black vehicle carpet wrap | Mineral-filled polypropylene cone woofer Rubber surround | DMA optimized motor system | Elevated frame cooling | Vented reinforcement collar | Floating Cone Attach Method (FCAM) Insert molded suspension, coil, and terminal-sub assembly | Surround stress relief design | Black Steel Mesh Grille Included | Slot-ported, Low-profile Enclosure | Extensive interior bracing 8 gauge OFC power and ground wiring is recommended for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this enclosure. | Dimensions: 36.625" W x 11.125" H x 5.125" D Built-in amplifier 500 W @ 0.20  | Input Voltage Range @ RCA Inputs: 70 mV - 1.40 V RMS | Input Voltage Range @ High-Level Inputs: 280 mV - 5.4 V RMS | Fuse Rating: 30 A (ATO or ATC) | Filter Modes: Low-Pass only | Filter Slope (dB/Octave): 12 dB | Filter Frequency Range: 50 - 200 Hz | Selectable Output Polarity Switch | Optional Remote Subwoofer Level Control: RBC-1