I just set up my HT. There are a lot of things I don't understand. Here is a list of questions I need answered: Subwoofer: 1. Instead of using the hardware on the sub for things like crossover and phase, my receiver took that function over automatically. Is that right? 2. What is Phase and how do I determine whether or not to reverse it? 3. How do I know what to set the crossover to? I have my receiver set to have the bass out on my sub and my 2 fronts. For some reason my fronts didn't sound very full when I had the bass directed to just the sub. However, in order for the fronts to sound good, I have to set the crossover for at least 80hz. I didn't notice a difference in how low the bass sounded on the sub from 40hz to 80hz. Am I doing this right? What is the ideal way to set this up? 4. When I used the YPAO system on my Yamaha, it set the DB on the sub pretty low. I adjusted the sub up to 7db while the rest of my speakers are at about 3 to 4 db. Does this sound right? I don't have the sub too Loud? 5. On my old receiver, the volume I kept my system at read between -40db and -35db. On my new receiver, at the same volume I like, it reads between -15db and -10 db. Is something wrong here or is it just different because it is a different brand reciever?