In my room, I'm getting a much flatter (and nicer sounding) response from a 60 liter generic sealed cabinet than my first experimental sealed 12" tube sonosub w/ a 12" driver stole from my velo ct120 (roughly 90 liters). The only difference besides size is that the box is front firing. I'm pretty much forced to put the sub in a front corner. Since a 12" x 48" tube is only $7.50 at home depot, I'm forced to try to fudge up a front firing tube. Any thoughts on how to cut the tube on a nice 45 degree angle? I keep thinking about it and I really can't figure out a good way to do it. Paper templates...?? I'm just not sure how to measure and mark it for the cut. I don't happen to have a giant miter saw laying around, but there's got to be a way to do it on the cheap. My best plan so far is to make 45 degree cuts with a circular or table saw and build an enourmous miter box, I'm sure someone else is more creative than that.