If you end up with SVS, they'll recommend the cylinder. They can give you all the details as to why a cylinder is better if you want them. Personally, I tried the PCi25-31 and the HSU VTF-2 and preferred the HSU. The size factor was better on it as well, but that doesn't sound like its an issue for you. Just a word of warning....you won't realize just how big the SVS is until it is actually setup in your house. I was expeting big, but it was still larger then I expected.