Dang RD, that looks really nice.
If I were to go with the end table, I would probably add glue between each piece so there is a nice tight seal and there is no vibrations. What glue should I use? Should I put some sort of foam or insulation between the sides of the sub and the sides of the end table? I'll have about an inch and a quarter on either side, an inch and a half on top (I wouldn't insulate on the top or front/back), and an inch on the front/back. Should I put anything underneath it?
Thanks for all the replies, and I'm taking them all into consideration, even Secret Squirrel's, lol (my wife and I have a great relationship and we both typically get what we want).