Product details:

Package Includes: (1) 48TRTP82 TRTP 8600w Down Firing Subwoofer+Enclosure+Passive Radiator (1) Rockville d - B11 1400 Watt Peak/350 Watt Dyno-Certified RMS Mono 2-Ohm Amplifier Car Amp+Bass Remote (1) Rockville RWK81 8 Gauge Complete Amp Installation Wire Kit with 100 % Copper RCAWHAT MAKES IT SUPERIOR True, Hard-Hitting Bass from a Shallow-Mount Design New Comp - RT Features Forced-Air Cooling - 20% Cooler for Increased Reliability High-Output Re - FLEX Passive Woofer Intensifies Bass Output Easily Mounts in Cargo Area, with No Space Issues - Specification of 48TRTP82: Woofer Size [in, cm]: 8, 20 Impedance [Ohms DVC]: 2 Rec. Amplifier Power [watts RMS]: 300 Peak Power Handling: 600 Frequency Response [Hz]: 30-500 Height Installed [in, cm]: 5-3/8, 13.8 Width [in, cm]: 12-1/4, 31 Length [in, cm]: 23-5/8, 60Video of d - B11:What's In The Box:(1) d - B11 Amplifier(1) Bass Remote(1) Birth Sheet with Tested Power - Owner's Manual - Mounting HardwareWarrantyFeatures:Rockville d - B11 1400 Watt Peak/350 Watt Dyno-Certified RMS Mono 2-Ohm Amplifier Car Amp+Bass Remote - Dyno Certified RMS Power Ratings: (Certified Dyno Test / Less than 1 % THD) (Use these ratings when comparing with top brands such as Kicker, Rockford Fosgate, etc)- 2 Ohm: 350 Watts x 1 Channel <1% THD+N- 4 Ohm: 220 Watts x 1 Channel <1% THD+NPeak: (Use these ratings when comparing with the top budget brands such as Boss, Power Acoustik, etc)- 2 Ohm: 1400 Watts x 1 Channel- 4 Ohm: 880 Watts x 1 Channel - High-Speed MOSFET Power Supply - Optical Coupler Class D Technology - Fully Adjustable 12d - B / Octave Crossover with Differential Circuitry - Low Pass Filter: 50Hz - 250Hz - Subsonic Filter: 15Hz - 55Hz - Phase Control - Full IC-Controlled Protection Circuitry