box design for my 12’s

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=40420
Printed Date: May 18, 2024 at 5:02 AM

Topic: box design for my 12’s

Posted By: furflier
Subject: box design for my 12’s
Date Posted: October 06, 2004 at 8:36 PM

I just sold my jl 15's and will be putting my rf he12's (model rfp3812)in my Jeep. Need a few ideas as to how I should build my box. They need 1.25 cu.ft. air space for sealed. I am going for sq no spl here. What I want to know is what would be the best way. Should I just build it square or should I put an angle on it. The subs will be faceing towards the tail lights. Any suggestions would be appreciated.

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Replies:

Posted By: Rushman
Date Posted: October 06, 2004 at 9:12 PM

square design should be good enough as long as the air space is correct. You can put angles on it if you want to be creative or different. Thats all up to you. Build it right and seal it tight.

Posted By: jeffchilcott
Date Posted: October 06, 2004 at 11:25 PM

I have always built to suit the space availible. but some people swear by the "golden ratio" I have tried it and not been able to tell a diffrence and never mic'ed one due to it being sealed but the ratio is as follows
width =1
depth = .618 width
length = 1.618 width

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Posted By: italnpimp59
Date Posted: October 07, 2004 at 1:18 AM

build it square with the subs aiming directly at the back door..i have a Jeep and i know how to make them loud!!

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Posted By: xtreamcc
Date Posted: October 07, 2004 at 12:53 PM

You dont need 1.25 CuFt for those subs. I should know, I have one in the back of my car right now. The box its in is .89cuft and has no fiberfill or nothing like that in it. This creates a little better response IMO from what Fosgate's box spec's will give you. I decided to go with a smaller box because I blew 2 RFP3412's and my other 3812 in a 1.2 CuFt box because the woofers would over extend themselves and not properly disperse the heat. Anyway, thats my speal about the RFP3812's posted_image

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Posted By: furflier
Date Posted: October 07, 2004 at 5:43 PM

Thanks for the input. Its nice to beable to get different opinions on designs. I will biuld it this weekend. Hopefully I can post some pics when I am Finished.

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