Description: Producing optimum power at realistic voltages (the 12s, rather than needing 14+ volts), the SALT – Sundown Audio Low-Voltage Technology – is Sundown’s answer! SALT amplifiers represent the pinnacle of Korean Class-D amplifier technology. Whether you are a world-class SPL competitor or simply want to bang harder than absolutely anyone else, the SALT series will be right at home in your system. Features: 8,000 x 1 @ 2 ohms RMS (when linked) 4,000 x 1 @ 1 ohms RMS mono 2,000 x 1 @ 2 ohms RMS mono 1,000 x 1 @ 4 ohms RMS mono 24dB variable subsonic filter: 10HZ - 50HZ 24dB variable low pass filter: 35HZ - 250HZ Variable bass boost @ 45Hz 0-9dB Phase shift control 0-180 degrees Power, clipping & protection indicators included Thermal, voltage, speaker short, and dc-offset protection circuitry Included wired remote control displays voltage, temperature, and clipping Specifications: Input Sensitivity : 6V - 0.2V Dual MOS-FET PWM Power Supply Signal / Noise Ratio : 90DB < Amplifier Type: Monoblock 1 Ohm RMS Power: 4,000 x 1 2 Ohm RMS Power: 2,000 x 1 4 Ohm RMS Power: 1,000 x 1 Linked Power: 8,000 x 1 @ 2 ohms RMS (when linked) Efficiency: 90%< Frequency Response: 10Hz-250Hz Operation Voltage: DC 9V-15.5V power input Recommended Fuse: 400Amps Tested Voltage & THD: 12.8V & Less Than 1% THD Signal / Noise Ratio: 90DB< Damping Factor: 400< Variable 24dB Low Pass Filters: 35Hz-250Hz Variable 24dB Subsonic Filters: 10Hz-50Hz Dimensions: Length: 22.05" Width: 8.67" Height: 2.80"