box design for 2 alpine type r's

[blakgtp]

so right now i have 1 alpine type r 12 in a 1.5 net cubic foot box tuned to 27hz. I have a hifonics 1000.1d amp that makes 750 at 2 ohm and 1000watts at 1 ohm. so now i want to buy another type r and run 500watts to each. could someone design a box for me that would fit in my 97 gtp?

 

[KeithGTP03]

For free?

 

[blakgtp]

yeah, lol. i was hoping there were some designs already out there, that someone could link me

 

[KeithGTP03]

There prolly are. Im not gonna do the calculations for you....because you already have them. Double your current enclosure..

 

[blakgtp]

only thing is, i want bigger. it's 1.5 net cubic feet, i would like 2 net cubic feet for each sub

 

[KeithGTP03]

Why? Ported they require 1.7 cubic ft. And sealed they require .85 cubic ft. You go too big and you're subs are gonna start farting.

 

[blakgtp]

ive heard that type r's like a bit bigger than spec. around 2 net cubic feet