That looks like an awesome build! It sounds like these might be a winner then, I think I'll still play with them all in winisd I enjoy learning new skills and it's a good way to practice.\n\nI still need to get my head around size vs tuning frequency and understanding realistic limits as the software doesn't give restrictions it just throws up a response graph (as far as I've seen)\n\nSome of the programs allow for an importing of the response from CLIO data or similar. SoundEasy (and BassBox) has a feature that allows you to enter the curve data manually, which the program will then use to refine its predictions.\nFor the more serious builder, it then becomes possible to take your own measurements and get that specific Driver’s curve loaded in to the model.\nAll the programs have their pros and cons. BassBox is easy to get started with but maybe not as advanced as some. SoundEasy is very difficult to learn and work with, but does have some useful advanced features that allow for some potentially better models. LSPcad may be the top of the heap, I know a few designers who use it, but it’s $1K to get!