500-600 boxes is all???? i Knew you were an amatuer at this!!!!!!! I pretty much agree with all you have said in that post. Realtive gian is dependant on several things. along the same lines is relative accuracy....... You know your shyte......And i wont argue that at all. BUT, what I will argue is the fact that we have not seen pics of your secratary yet!!!!! Box building is an ever learning thing....NONE of us will EVER get the perfect box built for a particular car. we just go with what we know works, do a little math and build it. usually it works out pretty good, a few times we listen to it and think "wow. that sounds like crap" then move on..... Its a hobby, or a job (well, was once for me) its all an educated guess..... Thats the neat thing about this car audio stuff......you are always learning and trin new things......all in the name of better sound.....
We figured it out the other day, I build around 4 (sometimes more) boxes per month, and I've done this for 12 years. This month I'm on my second, with a third that needs to be done by Friday. Most of what I've learned is by doing and seeing what works. Yes I can read every book in the world, but there is no substitution for experience. I told her I needed pics, see just looked at me funny. I'm working on it