Boss PH3KD Phantom 3000 Watt Class D Monoblock Amplifier with Remote Amplifier Class: Class D Technology: Digital Number of Output Channels: 1 Total Power: 3000 Watts Max Power @ 2 Ohms: 3000 Watts x 1 RMS Power @ 4 Ohms: 1500 Watts x 1 Frequency Response: 10 to 1000 Hz Total Harmonic Distortion (THD) @ RMS Output: 0.01% Signal-to-Noise Ratio (SNR): 105 dB Minimum Speaker Impedance: 2 Ohms Variable Low Pass Crossover: 30 to 1000 Hz Dimensions: 1.75"" x 8.3125"" x 4.5"" Soft Turn-On Circuit This unit is not strippable Thermal Overload & Speaker's Short Protection Remote Subwoofer Level Control Power & Protection LEDs Monoblock Phantom amplifier with Class D power supply Delivers 3000 Watts at 2 ohms; 1500 Watts at 4 ohms Line and speaker level inputs with variable gain control Low-pass variable crossover; 18dB bass boost Includes remote sub control