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armitank
07-08-2008, 10:31 PM
box for 2 alpine type R 12's..... upgrading from 1 type R to 2 and need to build a box,...

box has to be within 35" wide, 15"tall, and 19" deep.... want it to be tuned at 34hz, and have a slot port

im doing ok with the box dimensions and everything itself, but i have no idea how long or wide the port should be, any help is appreciated

Jeremy M
07-08-2008, 11:14 PM
RE port caculator (sp?) can give u those specs, search good for RE Audio and u should see it there...just put in what u have for dimensions then mess with the port width until u find the hz u want.

armitank
07-09-2008, 01:25 AM
thanks alot you truly dont know how long i was looking around... i think i stumbled onto that site too, a few hours ago, but didnt realize you could replace the numbers on it with other ones...:rolleyes:

armitank
07-09-2008, 01:33 AM
is 3.6cu ft internal good for two 12" type R's? tuned at 35hz

99grandprixGT
07-09-2008, 01:57 AM
is 3.6cu ft internal good for two 12" type R's? tuned at 35hz

wow thoose are almost exactly the dimensions i have to work with for my two 12 Rs. did you account for the woofer displacment.

armitank
07-09-2008, 02:04 AM
wow thoose are almost exactly the dimensions i have to work with for my two 12 Rs. did you account for the woofer displacment.

yes, thats what it ended up being

99grandprixGT
07-09-2008, 11:39 AM
if you end up building the box let me know how it sounds