4th order bandpass for type r

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=122903
Printed Date: May 15, 2024 at 3:10 AM

Topic: 4th order bandpass for type r

Posted By: eric21
Subject: 4th order bandpass for type r
Date Posted: July 30, 2010 at 1:47 PM

I've been searching everywhere but I can't seem to find any experiences of people putting alpine type r's in a 4th order. I've heard they preform better in a ported box, which I have built several but now I wanna play around with them (2 - 12's) in a 4th order.

All the calculators give me silly box volumes ex. smaller ported chamber then the sealed section???

Do any of you guys have any ideas or something you've tried that may work?

I have about 8cu.ft. to work with

Thanks

Replies:

Posted By: eric21
Date Posted: August 02, 2010 at 8:34 AM

does anyone have any ideas?

These are the woofer paramiters:

epb - 63
fs - 28
vas - 1.6 cuft
qes - .44
qts - .42
qms - 8.25

Thanks

Posted By: dukesrebelyell
Date Posted: August 03, 2010 at 3:55 PM

where are you finding the calculators for the 4th order? i also want to try and build one for my subs

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35 Hertz custom car audio and automotive fabrication

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