Is it safe to assume that these plans are going to work for just about any driver? I am new to any kind of box "designing" especially ported. I usually just follow the mfgs recommended sealed enclosure airspace requirement and go from there. I have 2 8" Rockford Fosgate HX2s and was hoping to build a box tuned at around 32hz. I've never had these guys in a ported box and was wanting to give it a shot.