Which is better? I am going to be using it in a small room, so I don't think I need anything bigger than those, not to mention I don't really want to spend more then 400 or 500 dollars right now. I will be mostly using them to listen to music, although I do watch movies occasionally. I listen to a lot of Drum and Bass music, so the subwoofer will be undergoing quite a bit of stress.
Another thing: I am going to be hooking this thing up to a bedroom-studio type setup, not a ordinary receiver/amplifier, so the signal coming into the sub will be coming from a 16 channel mixer (ie, from 1/4" jack to RCA jack). Is that ok? That shouldn't make a difference as far as the sound is concerned, correct? Is there anything I should know about this when I am NOT connecting the sub to a "sub-out" connection on a amplifier?