Well I got up this morning and decided I would make a few Mods to my box, mainly, add ports. I used WINISD Alpha to figure out the port size and then decided to use PVC Plywood for the ports for 1) very easy to work with, 2) can be trimmed with utility knife very easily 3) I had lots of it lol Well anyway, I finally decided on two 13" long, 2 1/2"x 3" ports for a frequency tuning of somewhere around 27-30 hz. Well I got it done today after working on it for about 4 hours, and well, the ports themselves may not be very cosmetically appealing they are functional and there is no port noise. I get about twice the sound now with twice as less cone excursion.