Based on the feedback of all here, I think I am going to go with an SVS20-39PCi. Prior to putting the Boston Acoustics on ebay, I was testing the frequency response via DVE, running a test tone from 5-150Hz. According to the specs, the frequency response for the PV400 should be nearly flat up to 150Hz (+/- 3dB), and yet the test tone rolled off at around 120Hz. The bass was smooth, so I don't think anything is blown (I hope). I want to put it on ebay, but not if there is anything wrong with it. Any ideas?