spl box help

[Bluntman420]

im planning on making a seperate box to use for competitions....i have 2 12" '05 type r's and 2 mrd m501's.....how big should the box be and what should i tune it to?...higher right? it will all be in the trunk of a 1996 ford taurus. thanks

[stones]

If you could find the cabin resonance of your vehicle that would be the frequency to tune the enclosure to.
This is not for sound quality though, just for the loudest possible output.

[Bluntman420]

where can i find that?

[Bluntman420]

anyone have any idea?....spkrman i emailed you.....