Right now, I have my Audioque HDC3 12" in a 2.4 cubic foot box tuned to 37 hz. I would like to try a much larger than recommended box of 3 cubes tuned to 36 hz. I only run 1500 watts, so I feel like 3 cubes is a viable option. Now to my question. Right now, my box is sub up and port back. I am wondering how I should do my next box. I am wanting to try both sub up and port up. Here are some pictures that show where the box will be and the current setup. I am wondering if more experienced people can figure out what sub and port orientation they think will be the loudest.