I have seen plenty of bang for the buck sub questions, but I am looking for one with the smallest footprint. I am looking at getting a Def Tech Pro Sub 100 11.25"Wx17"Dx14.25"H It's a 250W 10" woofer sub. Is there anything else I should be looking at. It gets great reviews at audioreview.com and seems like a good deal? I also looked at the SVS 25-31CS and the HSU TN1220. On the HSU am I reading it right, do you need to by a separate amp along with the sub? Also, how do you plug in a sub like the SVS if your receiver has a preout sub RCA jack? Yes, I am fairly new to HT.