SIA-1750D | Sundown Audio Monoblock 1,750W RMS Amplifier Product Specifications: Monoblock Class D Amplifier SIA-1750D Monoblock 1750W RMS Amplifier Power Handling: RMS Power at 14.4V DC 1 ohm Mono: 1750-watts RMS Power at 14.4V DC 2 ohm Mono: 17500-watts RMS Power at 14.4V DC 4 ohm Mono: 1250-watts Frequency Response: 10 Hz - 20K Hz (-3dB) Bass Boost 0 dB - 12dB (50Hz) Input Sensitivity 200MV Signal Noise Ratio: 108 dB Recommended Fuse Rating: TBA Thermal Management: Smart Cooler (Fan Powered by Temperature or Audio with 3 Speeds) Input Impedance: 56K-Ohms Minimum Supply Voltage: 9V DC Maximum Supply Voltage: 16V DC Protection System: Output Short/High/Low Supply Voltage/Thermal Protection 0 Gauge Power & Ground Wire Inputs 8 Gauge Speaker Wire Inputs Dimensions: 6.5inch x 7.25inch x 2.5inch (7.5inch width from screw hole to screw hole) Crossover: High Pass Filter: 10 to 1Hz (-12dB/8) Variable Low Pass Filter: 40Hz to 20KHz (-12dB/8) Variable