I use to have this model If my memory serves me correct,you will need to connect the left and right main inputs and outputs to the pre main in and out couplings on the Marantz Amplifier or if it does not have these,usually to the tape (monitor ) select switch,or ie cdr- rec in /out jack sockets,once connected usually you would have the marantz on half volume with the tape or cdr selected and let the processer work the main volume levels,hope this helps.