I?m starting a new project. I?m trying to incorporate all the new things I?ve learned. I?m using my 12? JBL. I?ve calculated the box on Win Isd as good as I could, and I think it will be pretty close.(I hope). The front of the box will be 32mm Mdf, the rest is 18mm. It will be a ported box with 2 75mm ports. The box will have curved sides. So I?m going to bend (try) 18mm Mdf. Pics to follow as soon as there is something to snap.