Monoblock Class D Power Amplifier RMS Power: 2000W RMS @ 1 Ohm RMS Power: 1400W RMS @ 2 Ohm RMS Power: 700W RMS @ 4 Ohm Subsonic Filter: 0-60Hz LPF: 50-15KHz Frequency Response: 10Hz-15KHz S/N Ratio: 82dB THD: 0.20% Gain: 0.2~6v Input Impedance: 22K Ohms Operation Voltage: DC 9-16v Minimum Speaker Impedance: 1 Ohm Remote Volume Controller: Included Continuously-Variable Input Gain Control Remote Turn-On/Turn-Off Circuit MOSFET Pulse Width Modulated Power Supply Soft Turn-On Circuit LED Power and Protection Indicators