About this item Two channel adjustable speaker cable to RCA line output converter Use the ALOC2 when adding an amplifier to a factory radio to convert the radios speaker level output to the low amplifier (RCA) level input Utilize audio transformer for noise isolation +/-0.5 dB Linearity from 20-20,000 Hz Split pin RCA connector with pure Oxygen Free Copper wire Dimensions: 5.55 x 4.53 x 2.13 inches