Crunch GPA2000.1 2000 Watt 1-Ohm Stable Car Mono Amplifier + 4 Gauge Wiring Kit New Crunch GPA2000.1 Ground Pounder 1 Channel Amplifier 4 ohm: 1 x 500 Watts 2 ohm: 1 x 1000 Watt 1 ohm: 1 x 2000 Watts Rugged MOSFET Pulse Width Modulation Power Supply for Instant Maxx Power Output