I have just ordered an SVS 25-31PC+ to replace a broken M&K V-125. I plan on putting it the same place as the M&K, the right-hand corner of my lounge, behind the front right speaker. Unfortunately this will place the sub under a shelf that runs between the wall and the chimney breast with only about 2.5" clearance between the top of the sub and the bottom of the shelf. Anyone have an opinion on whether that is a good idea or not? I only really have one or other possible position, along the left hand wall, about 6' from the front wall so if the under-the-shelf option proves to be a no go I will end up wishing I had bought a box rather than a cylinder and as I am bringing the sub back with me from on holiday to save on shipping costs it could prove to be an expensive mistake.