| D Series amplifiers are compact amplifiers with full size features. The D4.2200 is a bridgeable four channel amplifier with a total output of 2200 watts. It is 1 ohm stereo stable making it perfect for multi driver arrays. Precision tuning is made easy with variable bandpass crossovers and LED clipping indicators. Installation is made easier with single side controls and connections, input mode switches, and signal sense auto turn-on. For boat, bike, and ATV applications conformal coated internal circuitry and corrosion proof switches offer increased moisture resistance. Even though the D Series amplifiers are very compact they still employ set screw power and speaker terminals, discrete output sections, and heavy duty anodized aluminum heatsinks. This ensures power management is proper from input to output, increasing both in-use stability and long term durability. FEATURES: Conformal Coated Internal Circuitry Corrosion Proof Switches Full Bandpass Crossovers Auto Turn-On Clipping Indicators 2ch or 4ch Input Mode