I would like to build a Br-Box for the Intertechnik MDS 12 DVC. I thought of 2 bass reflex tubes with each 10cm diameter. As net volume I thought about about 55liter, because I don’t have so much space and the bass is supposed to play from 40 liters or so well (according to manufacturer!). I wanted to build the front from 19mm MDF and the rest from 22mm chipboard. Is it better to lay the chassie and the pipes upwards direction or to build the rear direction? If the bass looks backwards would be the maximum box height 35cm. With Chassie up correspondingly less. max. depth is 40cm. What dimensions would the case have to have? Thanks already to all