I have a RSP-1066 and i have my cd player connected to it via optical fibre. Now i have all my speakers set to small, my sub set to ON/YES and my crossover set to 80hz. Now i listen to my cd player in stereo mode (for bypass) and with my sub level turned off for Stereo. Does this mean my mains are getting the full range or does this mean i miss out on sounds below 80hz? Just trying to figure out exactly how it works.