4 CHANNEL HI/LO AUDIO LEVEL - Converts speaker level audio to line level (RCA) output - Adjustable output level to allow input to suit various amplifiers - Also eliminates signal noise - Maximum input from speaker level: 100 Watts Colour Codes: White/Black = LR- White = LR+ Green/Black = RR- Green = RR+ Grey/Black = RF- Grey = RF+ Purple/Black = LF- Purple = LF+ High quality!!!