My best modeling using the On-Line Parameters shows that a 340Liter box tuned to 20 Hz with 2-4” or one 8” port works best. I have noticed that the response seems to be smoother as the enclosure gets larger up to about 340 Liters then a Peak starts to rise, so based on this I plan using this Volume. Maelstrom White Paper used 2-4” X 17” for EBS alignment, however when I model 2-4” ports the length that WinISD gives is no where near this (11.26”) and since I cant change the length as it seems to be Auto Calculated, then I cant look at the difference between the length described in the Maelstrom White Paper. Also will a single 8” port give me problems? Right now I’m about to cut a 9.5 foot section of 24” Sono-Tube into 2- 4’ sections for the 340 Liter net pair (actually 355.7 L gross), I want to be sure about my calculations before I cut this piece, and since my modeling doesn’t exactly match what I’ve read, I thought I’d run this by you guys first. Any help would be appreciated.