Tuning low with a big box.

[TheOtherSide 0]

Hey guys. I have been a Car Audio nut for a while now but it has come time to build a sub for home use, theater not really music. I don't have a ton of room, maybe 6-8 ft^3 or a little more if I push hard for it. Looking to build an enclosure that'll really bring out the low end <20Hz and have an upper cutoff around 60-70 Hz. Been looking at drivers for a while and I think I have decided on a 15" as the optimum size for the room. No windows, 1 door, carpet, etc around 13'x22' so fairly good in room gain.

Now I need a driver. Here is what I had in mind, but I will be getting the amp once I've picked a driver(s):

SI Mag 15

CSS SDX15

SS RL-p 15

Dayton TIT400C-4 15

Yeah, the last is if I need to go to 2 drivers to get where I want.

I was really kinda hoping to go with either the CSS or the RL-p since I have heard great things about them in big enclosures (>250L) and tuning around 15 hz.

Help me out and let me know if I am going the wrong direction here. I am thinking a LLT enclosure is in order to achieve the results I am looking for. Thanks.