richamc01

So i think ill go with a box that is 6.0 cubic feet and tuned around 35-40Hz?

I'm looking into buying a Soundstream xxx18 and i have a few questions. First of all, here are the specs from the website. SPL Tuned Enclosure XXX-18 Min. Vented (ft.3) 4.00 Port (dia. x length) (4) 4x15 Fb (Hz) 49.91 F3 (Hz) 43.54 Opt. Vented (ft.3) 6.00 Port (dia. x length) (3) 6x13.5 Fb (Hz) 50.00 F3 (Hz) 42.71 Max. Vented (ft.3) 8.00 Port (dia. x length) (4) 6x12 Fb (Hz) 49.84 F3 (Hz) 42.24 Low Tuned Enclosure XXX-18 Min. Vented (ft.3) 4.00 Port (dia. x length) (3)4x18 Fb (Hz) 39.97 F3 (Hz) 36.81 Opt. Vented (ft.3) 6.00 Port (dia. x length) (2)6x22 Fb (Hz) 35.00 F3 (Hz) 32.18 Max. Vented (ft.3) 8.00 Port (dia. x length) (2)6x20.25 Fb (Hz) 30.02 F3 (Hz) 27.96 What is the difference between a SPL tuned enclosure and a low tuned enclosure? im not planning on doing and competitions at this point. i just want it to slam and slam hard. I drive and 06 Ford Taurus at the moment. (Hoping to get a Blazer soon) So all i have is the trunk room to work with. i have a kicker L5 15" in there right now. I will measure the trunk tomorrow and post that on here. Also, what is the difference between the Fb (Hz) and the F3 (Hz) the numbers are relatively close so i dont know if i matters or not. Please help me!! Thank You