lutz i've seen partical board enclosures actually blow apart from the pressure. just spend the extra 10 bucks or so on a sheet of mdf. you will be happier
yea... particle board enclosures went out a LONG time ago... just get mdf bro... otherwise you'll spend time and money, only to have it most likely fail.
as a matter of fact id put both of them together to get 3" of thickness!//content.invisioncic.com/y282845/emoticons/graduate.gif.d982460be9f153bb54e5d4cb744f6ae8.gif
Birch is accoustically different than MDF, and a properly built MDF box is plenty strong, and real birch (not the cabinet grade at home depot) is expensive as fck.