Recently, I acquired a cylinder sub from SVS. It has been used more for music than DVD's up to this point, although I did watch "War Of The Worlds" yesterday. What I have found is that with certain bass prone passages in one CD I have is that it can at times be overly bass prone, to the point that it did not sound good to me. Now this happens rarely, so it is not a major concern for me, but during that particular track it was just a little to much for my liking. So I turned the gain back from around a 1/3 of the way up to say around 27% of the way up and this seems more right to me. The bass is still there, and makes music sound all the better because of it. As for the film yesterday, there were times when the floor, recliner, and yes I were all vibrating. Oh yeah. The sub just adds so much more realism to the movie soundtrack. Even though I went with a more modest unit, so far, I have been pleased with my SVS. Right now, Pink Floyd is playing on the laser turntable....and when I bypass the SVS, the music just sounds so much more flat. The cylinder was a better choice for me due to real estate concerns in the room. The 20-39 PCI fits perfectly between my main and the audio rack as close to the corner as it can be. Thank you SVS. You have another happy customer.