View Full Version : Single Alpine Ported Enclosure length..// help please:crazy:

04-15-2010, 10:13 PM
I'm building my own box for my 12" Alpine type R because i am cheap!! The thing is.. its harder than i thought because I'm making a ported box. I had no idea what size/length the port should be.. so i just cut out whatever looks right. Now i found (this site (http://www.carstereo.com/help/Articles.cfm?id=31)) that tells me i should have a port length of like 35 inches... but mine is 15 inches! The port ares is 2 inches wide by 10 inches tall. I found that I could make the port area 1.25 x 10 by repositioning it and have it tuned to 40 Hertz. Would that sound alright?

Here is a pic of the dry assembled box:
http://sphotos.ak.fbcdn.net/hphotos-ak-snc3/hs485.snc3/26555_10150158414540720_662670719_11968374_4302136 _n.jpg