I'll be ordering an SVS 20-39CS tomorrow morning and am really excited about it. I've been reading lots and lots of reviews online, and have been sharing quite a few choice quotes with my wife Lisa (unfortunately for Lisa, her computer is in the same room as mine). Just about everything out of my mouth the last few days involves bass, SVS, Avia, SPL, blah blah blah. She is ready to kill me, and has said as much. But that's just part of the problem. At first my wife was excited too, but the more I read to her the more she seemed worried. I guess I kind of brought this on myself: statements like "blurred vision", "paintings falling", "house shaking", "kicked in the chest" bring a huge smile to my face, but they seem to have the exact opposite effect on Lisa. At first I thought she was kidding, but now I know that she really is worried. My question is, what kinds of things can I do to "lock down" the house in preparation for the sub? We have lots of paintings of all sizes and some heavy wall freezes that "WILL NOT BE COMING DOWN OR MOVED". What can I do to keep things where they are, and what are some common sources of rattles (and how do I correct them?). I know once she hears it she will love it, but not if the house is falling down around her. Any suggestions are appreciated! Thanks. BTW, the pre-sales support has lived up to all the glowing comments I've read. I'm sure SVS is very busy right now, but Tom has responded quickly to all of my emails and has been extremely helpful. I never thought I'd feel so confident about buying a speaker without hearing it!