2-Channel Line Out Converter with Adjustable xBOOST corrects for bass roll-off ^^ Handles up to 30V (225 watts RMS) and Provides up to 9.5 Volts of output ^^ Auto turn-on via DC offset or Audio detection ^^ Load selection switch (20, 60, or 20K ohms) to prevent factory radio shut-down ^^ Wired remote bass level control included