I know everyone is sick of SVS threads but I had to make this post because it was through the advice on this forum that I made the purchase I did. I just wanted to say that the sub has lived up to its reputation. I am truly shocked at the improvement I have experienced, especially in music. My old sub boomed too much and I ran my speakers full range for music. While using the 20-39 PC-Plus, music has improved two-fold. I know get way better highs and mids because my receiver has lost the strain of the bass, but obviously the bass is improved as well. Movies have a much bigger impact now. I can actually feel the bass on some parts. I highly recommend SVS. I was espcially impressed at the help Erik offerred me. They really want you to get the right product and don't direct you to the next model if they don't have to. I didn't know a sub could make this much difference in my system but it did.