Currently my system consists of: Sherwood RVD-6090R DD5.1 Receiver Pair of Paradigm Titans Sony SA-WM40 Subwoofer I bought these parts after researching for days. These seem to be the best I could buy for the buck, while still staying reasonably affordable. Now for the questions: My receiver doesnt allow you to manually adjust the subwoofer crossover. The titans are a bit lacking in bass, so I bought the sub to compensate for that. The sub allows adjustment of the crossover...what should I set it to? I've gotten conflicting advice. One person says to set it to full, as the extra frequency response can only help, and never hurt. Another told me to set it to the approximate range in which the titans die off. That range seems to be ~140hz. So whos right, and am I anywhere near the correct range? I was also told to just set the sub volume at max and adjust it with the subwoofer channel level on the receiver. Good idea or bad? Also, I've heard of various mods that can be done to the sub to make it tighter. I'd certainly like it to be a bit tighter. But all these suggestions of using polyfill to line the insides and spiking the bottom are a bit daunting. I dont really have too much of an idea of what polyfill is to begin with, and I certainly have no clue as to what the inside of a subwoofer looks like. I'd hate to screw up the sub by lining the wrong things and shorting something out. And I'm thinking of buying a set of paradigm Atoms for the rears. I figure the lack of bass compared to the titans shouldnt be too much of an issue since theyre rears and I have the sub to compensate. Also, my space is pretty constricted. (Dorm Room) I've heard over and over that its best to have your speakers a certain distance from the wall, but this simply is not an option for me. Right now the titans are about 3 inches from the back wall of a desk. And the sub is sitting on the floor with about 3 inches from the port as well. I could turn the sub as such an angle that the port would be facing a wide open space, but then the driver would be pointing perpendicularly to the left of me, which I'm assuming is a bad thing. So...what effect is this cramping having on my sound? I cant really tell, because there really isnt anywhere else to put them in my shoebox of a room. Also, if possible, is there any way to use some sort of looping tube to get the ports in the front, with a few feet of room to breath (albeit pointing right at me)? Any help is definitely appreciated, but please keep in mind this is a budget system! Sorry about the rookie questions, but I'm eager to learn!