Planet Audio AP1000D 1000 Watts 1-OHM Stable Max Power Class D Monoblock Power Amplifier Max Power (1 Ohm) 1000W X 1 , Rms Power (1 Ohm) 650W X 1 , Rms Power (2 Ohms) 450W X 1 , Rms Power (4 Ohms) 250W X 1 , Signal-To-Noise Ratio 100Db , Frequency Response 20-250Hz , Dimensions 2-5/16-Inchh X 10-5/8-Inchw X 13-9/16"L Class D Monoblock Power Amplifier  Switchable Input Sensitivity: 100Mv-2V Or 2V-8V Switchable Phase Shift (0-180) Variable Bass Boost (0 To +18Db)  Continuously Variable Low Pass Crossover Variable Subsonic Filter (15-40Hz)  Low Level Inputs And Outputs  Power And Protection Leds  Heavy Duty Set-Screw Style Terminals Chrome Plated Connections  Illuminated Logo  Strapping Capability: Strap Two Amps Together For Twice The Power Includes:Remote Subwoofer Control And Datalink Cable For Strapping Amps Together (2 Ohm Only)