I did a search but most of the info was on other Denon modles that are much more expensive than my 1603 and may work in a different manner. I have denon 1603, Paradigm Monitor 7s and Pw 2200 subwoofer. I am usin the coax output from a Hitachi DVD player. In the setup I have front speakers set as small, crossover set at 80 HZ. The crossover on the SUB is set at 100HZ to avoid and "cascding crossover" effect. Question is given my connections and seeting what will I get in direct vs stereo mode. Does anyone have definite answers to any of these questions: 1. Is a signal being sent to the sub in DIRECT MODE. 2. If so is it being crossed over at 80 hz or is it being handled by the sub crossover (100hz) Thanks for all the help.