I traded a compound bow I no longer use for 2 Rockford Fosgate T112D2 subs. I'm too old to put them in my car, nor do I have the desire. I want to add them in separate enclosures to my home theater. I'm trying to use winisdpro to calculate box dimensions and figure out proper port lengths for good low frequencies but am obviously doing something completely wrong. If I calculate the box at around 2 cubic feet it shows it playing strong at 130hz and falling sharply off below that. If I plug in a request of 25hz it says the box needs to be around 50 cubic feet! If these subs will work I plan for them to be a permanent addition to my theater so I want to build the right enclosures once. Thanks in advance for any help or even a pointer in the right direction for a program I can use. Attached are the specs for the subs.
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2/12/13 at 5:45pm