Alpine Type-R Ported Enclosure
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=86391
Printed Date: November 04, 2025 at 6:19 AM
Topic: Alpine Type-R Ported Enclosure
Posted By: jettagli03
Subject: Alpine Type-R Ported Enclosure
Date Posted: November 29, 2006 at 9:47 AM
I've been working with WinISD to put together a ported box for a pair of the new "er" Type-R's but I really am in over my head. I'm pretty new to WinISD and can just do some of the basics but don't understand yet how to get my desired result.
Anyone out there been somewhat im my situation before and either has some figures for a ported Type-R box or could put something together in WinISD for me?
Already had them in a sealed box with about 800 watts RMS and sounded pretty good, as far as Type-R's can but in reality I'm really not a fan at all, but am looking for a little more output.
Any feedback welcome.
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Replies:
Posted By: jettagli03
Date Posted: November 29, 2006 at 10:35 PM
No one? Sad.
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Posted By: aznboi3644
Date Posted: November 29, 2006 at 11:32 PM
I have one for two Type R's.
4 cubes before port displacement
Tuned roughly 37Hz
14 inch by 4 inch that is 21.5 inches long
F3 of 30Hz and peak at 42Hz
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