X501-1 X-Series, Class D Mono Power amplifier Class D AmplifierFull Range Digital AmplifierCEA-2006 CompliantLow-pass Filter Key Features Mono channel digital power amplifier D-class Amplifier Compact chassis Built-in low pass filter Speaker Level Input Signal sensing Turn-on Extruded aluminum heat sink design 2 ohms load capability Screw-type terminals Amplifiers X302-4X-Series, Class D 4-Channel Power AmplifierX802-5X-Series, Class D 5-Channel Power AmplifierKAC-M1814Compact 4-Channel Digital Amplifier