yeah, it's strange -- you don't really see anybody saying "I'm going to get this sub and this monobloc class D amp and make my box exactly to these specs with this big of a port..." I guess car audio really is one of the last types of electronics that are marked WAY up and so you can really barter down the price -- therefore companies are trying to market boxes as a miracle cure which is all snake oil like the whole "high quality cables" debate. I mean you can buy sub boxes from JL audio for their W7 subs that cost $500 (Canadian). Granted they look very cool and are maazingly well built but if I had a table saw and some MDF I could build the same box for a tenth the price...
