I hate this trend. Yes I know bass reproduction is cabinet volume, resonant frequency etc - the laws of physics canna be altered, laddy !! :)\n\nBut, but - there are alternatives. Use a sonosub cylinder design, or use a material other than MDF (or HDF, stupid Monoprice) like ply\/balsa to save weight. What about other possible designs like horn loaded - can they save in size by increasing internal effective volume?\n\nEveryone just takes a massive box, does some basic calc in WinISD, adds a driver + amp + port, and thats it. If you look at the higher end oem's like Paradigm, you see other options like multiple dual oppossing woofer designs (same is seen in Seaton Submersive, PSA as well) but its not common.\n\nI honestly don't think this is the ultimate in sub design.