Crunch POWER DRIVE with QTD Technology delivers huge power in a cool running efficient heatsink. Features include built-in electronic crossovers and high-level inputs. 2000 watt four channel car audio amplifier Power: 4 x 500 watts at 2 ohms; 4 x 250 watts at 4 ohms, 2 x 1000 watts bridged at 4 ohmsMinimized distortion from low voltage circuitLow voltage RCA inputs made of quality materials create a stronger sound connectionHigh level inputs easily tie into OEM audio systems4 operation modes: 4 channel stereo, dual stereo bridged, stereo + bridged mono, and dual bridge mono12 dB Versa-Cross adjustable electronic crossoversClass A/B topologySPEED-FET MOSEFET componentsHeat Sink Quick Thermal Dispersion technology keeps the amplifier running coolPulse Width Modulated power supplyNickel-plated brass connection terminalsFull-range signal pass throughLED system protection circuitrySpecifications:Signal-to-noise: 98 dBFrequency response: 20Hz - 20KHzBass boost: 0-9 dBTotal number of channels: 4Dimensions: 17.8 x 11.5 x 3.8 inchesWeight: 8.15 poundsProduct warranty: 1-year warranty