Nemesis Audio NA-LOC4 4-Channel Active Line Output Converter & Line DriverBRAND NEW NEMESIS AUDIO NA LOC4 4 Channel Active Line Output Converter & Line Driver Key Features: Active line output converter and line driver 4 channels of speaker level inputs handle up to 40V 4 channels of RCA outputs provide up to 9. 5 Volts of output Designed to work with factory audio systems Auto turn on via DC offset or Audio Detection Load selection switch (20, 60, or 20K ohms) to prevent factory stereo shut down Adjustable 0 12dB Bass Boost