double check my 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=93558
Printed Date: May 06, 2024 at 3:52 PM
Topic: double check my enclosure
Posted By: may03lt
Subject: double check my enclosure
Date Posted: May 02, 2007 at 8:26 PM
https://www.subwoofertools.com/forum/ported-box.asp?Ew=20.5&Eh=17&Dia=7&Xmax=12.45&Vd=.05&NumW=1&Vb=3.6&Fb=34&Qts=&Vas=&Fs=&CE=0 I want to bulid a ported enclosure for 2 S12L7. I have built a few sealed enclosures so I am confident on the construction but am inexperienced in the design. After doing some research, I came up with the design in the link above. I will build 2 of these enclosures. I had to change the design that Kicker recommended to fit my l x w x h requirements but I kept the volume the same. What do you think? If my design sucks, I really could use a good one. This will be going in a Trailblazer, so there is more then enough room to play with the dimensions. Any help would be appreciated!
Replies:
Posted By: tubbs04
Date Posted: May 03, 2007 at 1:38 PM
I think as long as the math is correct you should be okay....
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...don't crush the weasel...
Posted By: aznboi3644
Date Posted: May 03, 2007 at 3:51 PM
I'd make it with more port area
Posted By: may03lt
Date Posted: May 03, 2007 at 4:52 PM
Now were getting somewhere! What will the benefit be of adding more port area? Is there anything else I should consider? Thanks
Posted By: tdsteele
Date Posted: May 03, 2007 at 7:31 PM
What do you want to accomplish with these subs, and I guess the rest of your set-up? Sound quality, SPL? How much power are you gonna give them? Subs and ports go together, what ported enclosure sounds good with one sub will probably suck with another. Kicker should have some recommended specs for enclosures that will work best with these, meaning the internal air space and port lengths that would go with it. Changing the air space is gonna change the port cause it will change the tuning. All the knowledgeable people on here can help ya, but they are gonna want more info.
Posted By: aznboi3644
Date Posted: May 03, 2007 at 7:35 PM
that port area will work...but me, I like a lot of port area. Less vent velocity and less chances of port noise
Posted By: may03lt
Date Posted: May 04, 2007 at 7:51 AM
tdsteele wrote:
What do you want to accomplish with these subs, and I guess the rest of your set-up? Sound quality, SPL? How much power are you gonna give them? Subs and ports go together, what ported enclosure sounds good with one sub will probably suck with another. Kicker should have some recommended specs for enclosures that will work best with these, meaning the internal air space and port lengths that would go with it. Changing the air space is gonna change the port cause it will change the tuning. All the knowledgeable people on here can help ya, but they are gonna want more info.
I want good low notes so Id say spl. Each woofer will receive 900wrms. I calculated the enclosure linked above based on Kickers spl box specs. I figured the port/ enclosure volumes, and adjusted the h x w x l measurements (to fit) and lowered the tuning frequency to 34hz (based on what I've read this is good). aznboi3644 wrote:
that port area will work...but me, I like a lot of port area. Less vent velocity and less chances of port noise
Should I add more port volume but keep the total volume the same, or add more total volume. Is there a ratio of port volume-to-enclosure volume?
Posted By: aznboi3644
Date Posted: May 05, 2007 at 2:36 AM
I would lower the internal volume to around 2.5-3 cu ft and have more port area.
Posted By: may03lt
Date Posted: May 22, 2007 at 3:49 PM
Yo aznboi3644! I took your advice, 2.5ft3 and 41in3 for each woofer, 33hz, I couldnt be happier! Thank you for taking the time to offer your advice!!
Posted By: aznboi3644
Date Posted: May 22, 2007 at 8:30 PM
No problem...glad that you are happy with your setup. Bump safely
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