It's at my website. Click on my sig. A while back I embarked on designing a bass cab, and found that there was very little guidance available for the DIY'er on what I call the "small box" design style. Yet small bass boxes are widespread and commercially successful. So after arriving at a design that I am happy with, I decided to go a bit overboard on describing the technical background and design method. Some existing materials at my site provide background to the design report, and I will upload the design spreadsheet soon. Happy reading. Questions and criticism are mandatory.