KAC-6104D Class D mono power amplifier Class D AmplifierFull Range Digital AmplifierCEA-2006 CompliantLow-pass FilterLine outSpeaker level Input Key Features 600W maximum output power Built-in variable low-pass filter Built-in Bass expander 2 ohms load capability Speaker level input Amplifiers KAC-M1814Compact 4-Channel Digital AmplifierXH901-5X-Series, 5-Channel Class-D Power AmplifierXH401-4X-Series, 4-Channel Class-D Power AmplifierKAC-PS704EXPerformance Standard Serie 4/3/2ch Power AmplifierKAC-PS404Performance Standard Serie 4/3/2ch Power AmplifierX802-5X-Series, Class D 5-Channel Power AmplifierX302-4X-Series, Class D 4-Channel Power AmplifierX502-1X-Series, Class D Mono-Channel Power Amplifier