Box Specs questions...need help from someone that knows this stuff....

[95mitsueclipse]

Ok, here's where I need help from someone or some people that know their car audio-- preferably you all that work doing installs at car stereo shops, or just know this stuff well.... I want to build a PORTED BOX for 2 Alpine type R 12's (model: swr-1221d) Ive been running numbers online and working with this things and I'm stuck and confused, so I'm looking for help from the pros. I'm trying to get the full box dimensions for the 2 12's (a full box, but subs in seperate chambers) with the port sizes length, width, and depth and all the specs and info i need for the subs and building this box.... here is some info on the subs that i have:

-Port box vol: .75-1.75 cu^3 ft
-Fs= 27Hz
-Vas= 58L (2.0482507 cu^3 ft)
-Qms/Qes/Qts= 8.68/0.40/0.38
-Xmax/Xpeak= 13.35mm/26.7mm
---I want the ports to be rectangular(longer height than width)----
That is the info i got off the sheet from the woofer specs sheet.... ANYTHING ANYONE CAN DO TO HELP WOULD BE GREATLY APPRECIATED. I really wanna get this done ASAP, so anyone with the complete know how on this, please let me know... either reply to this post or email me at [email protected]

 

[devlish]

i'm an authorized Alpine Dealer.. and had 2 12's in my car last summer. here was my box dimensions straight from Alpine Tech

1.33 Cu Ft each
2x3x8 slot port (each)
i did mine in two seperate chambers

frickin Pounded!!!

good luck

(I.D. L"xW"xH" divided by 1728 = Cu Ft)

don't forget to account for the port, but NOT the sub with these figures. the 1.33 is BEFORE the sub.

 

[Chuckster]

You haven't asked for anything but "help". Exactly what do you need help with?