Sub Enclosures Mdf

Ranking based on MDF 75 "for a subwoofer in an enclosure under B12D4 Hifonics?
I'm looking to build a subwoofer box for the following: i am in need http://www.sonicelectronix.com/item_12409_Hifonics+B12D4.html the size of the box, I prefer worn seal. what I discovered is that the maximum recommended size is 1.75 cubic meters, but does not specify how long the port should be and what the size of the port (either 3 "or 4"). I suppose that given the dimensions of .75 "MDF but I'm not sure if it participates in movements of speakers well. Anyone ever made a box for this speaker can provide me with appropriate measures?
If you want to create a slot adapted here is calculator. http://reaudio.com/speaker_box/LPort_Box_Calc.html (melody about 35 Hz)
Design Your Own Subwoofer Box - Part 3: Enclosure Design





