i already posted a thread about this but its not showing up.
This weekend im building a new isobaric sub box for my 4 15s. im firing them up and down, front to front with ports firing back. It was the best way to save space and money without buying new subs. Box design will be pretty tricky but hopefully it will work out for me. Dont get too jealous when my 4 15s take up as much space as your 2 15s...ha.
Heres a little pic to clear up what it will look like for anyone who doesnt know what im talking about.
From what I've heard about doing this with your subs, your SPL won't drastically increase from having just the two subs... In doing this, you should get a lower bass extension though.
the main reason im doing it is to save space. the way i look at it is, i have the 4 subs now so why not use all of them, rather than 2. ill put some pics up when i get started.
