Since i cant make up my mind about what i'm going to tune my box to i decided that a port plug might be the best idea for me. i did a search on them and read a bit about them, i understand the concept and the fundamentals but i need to know a few things.
how do you secure them in place? screws? cause if you keep switching them the screw holes will get bigger letting air leak out and i thought that boxes should be almost air tight.
if i'm building a box for my dual 10" type-r's DVC 4ohm (using 3/4 MDF) the box i'm going with is L:18", W:30", H:14" and my port is going to be 12.5" tall and 2" wide what should the port length be for 30Hz and 41Hz?
Any other recommendations would be great for my specific situation.