I recently wanted to have a under the seat build for my truck, but now I've come up with the decision to go a little bit bigger with the enclosure. I don't want to take my seats completely out. my plan is to flip my seats up and build a box that's I can take out if I needed to use my rear seat. 15' s are out the question cause the enclosure will be to large to move around, so my options are multiple 10' s or 12' s. I have my saz-3500 but I plan on selling it and get a saz-4500 or two crescendo bc2000's I want to keep the price of the subs under $1000. I listen to 90% rap and I will not be competing. the source I have to work with is W-50 D-16 H-17.5