I am in need of advice. I have a Harman Kardon AVR7200 receiver, Bose 701 series II front speakers and a SVS 20-39 PCI subwoofer all connected via Monster cable. I was wondering what is the best crossover setting for me to use with this set up?? Right now i have the receiver set at 100hz but i am not sure if i need it lower or higher. Please advise???