1,200 x 1 @ 1 ohm RMS 825 x 1 @ 2 ohms RMS 450 x 1 @ 4 ohms RMS Variable 12dB low-pass filter: 50Hz - 250Hz Variable 12dB bass boost  DC auto-sensing turn on Thermal, voltage, speaker short, and dc-offset protection circuitry Water resistant Heavy cast aluminum heat sink Removable audio control cover Wired remote control  Get ready to experience the power and versatility with the water-resistant SDX amp! Perfect for your car, UTV, or any open-air vehicle, this compact yet mighty Class D amplifier delivers exceptional fidelity. Neatly protected beneath a sealed cover, a full suite of audio controls allow you the freedom to adjust your sound to perfection. A robust aluminum casing provides superior heat dissipation, and a shield from the elements. Whether its powersports or in your daily driver - with the SDX amp, you get great sound - for years of fun in any weather! Product Manual Specifications S/N: 83dB Input sensitivity: 6V max Working voltage: 11.5 - 15V Recommended fusing: 120A Dimensions (L x W x H): 12.25" x 7" x 2.125" Note: Unscrew the badge using an allen key to access audio settings.