KAC-8104D High Performance Monaural Power Amplifier Class D AmplifierCEA-2006 CompliantLow-pass FilterBass Boost CircuitInfrasonic filterLine outSpeaker level InputDie-Cast Aluminium Heat Sink Key Features D-class Amplifier Circuit Signal sensing turn-on 1000 Watts max Output Power 2Ω Load Capability Built-in Low-pass filter Built-in Infrasonic filter Bass Boost 40Hz (0~+18dB) Blue illumination Speaker level input