I read alot of articles and there seems to be a difference of opinion on whether the recievers or sub's crossover should be used. First off, I have a AR sub connected to my Onkyo receiver's LFE preout to the sub using an RCA cable. I actually have a couple of questions so Ill just spit it out Should I be using the line in or speaker terminals on the sub if Im concerned about quality? If I was to set the crossover on the receiver at 100, should I do the same with the sub or dial it to the min (theres no switch to bypass the sub's crossover)? and last, I have Infinity towers and I think they can extend down below 50hz but I cant check the specs cause Infinity's site is down atm so dont know if its accurate. Should I set the crossover at 80 or 100?