If you have ever built a speaker, or anything else for that matter, from a sheet of plywood or MDF, you know laying out the pieces to cut can take some time. Well to help speed things up, there is CutList. The link below take you to the
page where you can download the free software. It makes the job very easy. I usually let the computer make the first pass at laying the pieces out. I then do a manual layout with the software and see which makes more sense.
I'm presently working on some cabinets based on the 620 for a friend. I should have the bracing done by this weekend, so I can mount the drivers and ports for some tuning time.