I was looking at some new subs yesterday and was told by the salesman that using the front channel pre outs on my reciever was a superior connection for subs than using the LFE out (single rca out. Does anyone have any thoughts on this? My current setup has the pre-outs running to a Yamaha amp then to a Paradigm passive sub. I am also using the LFE out to a Velodyne sub. Would I be better off running the pre outs to the Velodyne, then the lo pass line outs on the Velodyne to the Yamaha amp to power the Paradigm sub?