Crunch Amplifier 1 x 1000 @ 4 Ohms 1 x 2000 @ 2 Ohms 1 x 4000 Watts @ 1 Ohm D Class Class D MOSFET Monoblock Amplifier Peak Power: 1x4000 @ 1 Ohm, 1x2000 @ 2 Ohms, 1x1000 @ 4 Ohms Frequency Response: 10Hz-500Hz, Built in switchable bass control: 0/+6/+12dB 4 AWG Power and 12 AWG Speaker Terminal Wire Gauges Stable at 1 ohm | Remote Subwoofer Level Control Included MODEL NO - GTRII40001D