A couple coats of Duratex and it's now time to load the box with drivers.
The final volumes turned out to be about 10.2 cf for the rear chamber, and 2.8cf for the front chamber. That front chamber will need some solid filler to reduce the chamber volume to up the tuning point. My model abilities are limited. I was using WinISD with three different models going at once. I was using 2 PR
models, one for each chamber, and a model for a 6th order bandpass. I made all volumes the same, and would change tuning points on the PR
models and see how it affected a 6th order bandpass model. It is very crude but gives me a rough idea of how the entire box will perform with all the outputs combined. I am going to start out with about 2000g on the rear PR
's, tuning at ~18Hz, and 400g on the front PR
, with a volume of ~1.5cf, and tuning at ~56Hz. It's a start at least. I am not sure how I will measure and sum the three outputs from the PR
's(any tips Ricci?), but one step at a time.