I am looking to upgrade my old stereo receiver to a 7.1 receiver. That means I'll be needing a sub. I don't want to spend much, $200 at the most. This being that once I'm able to buy a house I will upgrading to something like a high end Velo. The room is a slightly large bedroom with a concrete floor. I was looking at the Velodyne VX-10. I was wondering if you guys had any other suggestions in the price range. I really like Velodyne subs compared to any other I've heard. However, I've never heard the VX-10.