I'm looking to build a few of my own closed-back cabinets. I have the tools and know how to use them, but I don't really want to go the trial-and-error route when it comes to cab dimensions. Can you recommend any resources for plans and/or blueprints?
Maybe I'm just a total dummy, but my simple approach is to copy a cab that I really love; for instance, I don't think anyone has ever made a 4x12 that sounds better than a big-box Marshall ... same goes for the closed-back 2x12 ... so, if it were me, I wouldn't try to re-invent the wheel ... I'd just copy one of those! Oh, and using quality light birch plywood, with good solid finger/dovetail corner joints ...
Hope my simplistic approach helps ...