You have preout and main in on your receiver.You simply take out the jumpers and install the Icbm in between the preamp section of your receiver and the main in using 2 pair of interconnects.The Icbm has the sub out built into it.It will filter out anything at the selected crossover point and send the lower signals to the sub.Anything above the crossover point will go to the amp section of the receiver and then out to your M60s.

Rick


"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud