If you plan on movies only, SVS is a fine choice. However, you may tire of it for music. I say may because I've only heard the 12-NSD and even though it had fantastic slam, I grew tired of the boom boom for music. The 350 on the other hand is a very musical sub. In your small space, the 350 will offer you tremendous presence for movies and well-blended bass for music. To give you an idea, I listened to the 350 in my 4,000 cubic foot space (which opens up to the rest of my house) and found it to be more satisfying than my EP600 for music. For movies, it didn't have the presence of the 600 but then again, look at the kind of space that I was working with.
