DS18 Candy X4B Owner’s Manual INSTRUCTIONS FOR FUNCTIONS AND CONTROLS HIGH INPUT- High level input terminals. pass-Thru outputs: When input audio signal from HIGH INPUT port can start amplifier working directly instead of using RAM cable from POWER. LOW INPUT- CH1/CH2/CH3/CH4/ inputs of the amplifier system. preamplifier outputs of a source (head unit, CD player, DAT, etc.) …