PAC SNI-15 Line Lever Converter 10:1 Reduction Universal Line Level Convertor Easy installation Add an amp to the factory system Line out converter for factory radios with 2 to 30-watts per channel Accepts speaker level input and provides stereo RCA output signal for adding an aftermarket amplified audio system Linear 20 to 20,000Hz output based on input signal Transformer isolated for optimal sound and performance Maintains correct phasing