Most accurate way to design a box

[bbeljefe]

Good points, this will not be some spl monster, just an epic 12" for DD. looking for the best sound quality not the loudest. I listen to all sorts of music and will going in a g35 coupe and also prefer a program that tells me the cutout sheets

WinISD has a project section where it will give you cut dimensions but to be honest, I've never used it because I started building speaker boxes way back in the 80's, before computer designs so I use a pen and a pencil to handle that part. Also, cut out software only works well with square boxes and I run into a lot of odd shaped boxes that can't be figured on a puter unless you're a cad type.... which I'm not.

But yeah, for an SQ box WinISD is great because you can model multiple boxes with different volumes and tuning and compare the response curves all on the same page.