Enclosure Design & Construction Help Post and discuss your car audio box construction, design, fiberglass and other fabrication questions here.

Help with port measurements?

Old 09-18-2012, 10:49 PM
  #1  
0 Watt CAFz'r
Thread Starter
 
Join Date: Sep 2012
Posts: 1
Question Help with port measurements?

I am building a box for 4 powerbass m124 subs.
can anyone show me a diagram or tell me how to port and tune it???
box measurements are as follows:
34in. wide.
26 in. long.
14&1/4in. tall.


meaurements from hatch on a 1999 mercury cougar.
ward is offline  
Old 09-23-2012, 01:02 PM
  #2  
0 Watt CAFz'r
 
Join Date: Sep 2012
Posts: 17
most people use a program. One I recommend is Torres.

Heres a little to get you started with.
1. Make sure that size will fit in your car. In a regular trunk style car I see a lot of people measure, build, then try to fit and realize its not going to. Get some card board and make a box of the size you want and see if you can fit it though the openings.
2. In general its best to buy subs that fit your space/desired result instead of trying to make a particular set of speakers perform in the space you have and give you the results you want.

With that said powerbass recommends 1.25 cu ft per sub that you have for sealed and 1.9 cu ft net for ported. So doing the math your going to need 5 cu ft sealed and about 7.6 cu ft net ported which is about 8-10 gross depending on what types of ports and tuning you are shooting for.

So long story short you don't have the room to port those 4 12's, you do have the room for a sealed enclosure as the measurements you gave give you 5.88 feet before sub and brassing displacement.

Now... with all that said, do you already own the subs? Maybe I can help you make a better choice that will help you achieve your desired results easier. What is your desired result? What power do you have?
jcarver1112 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
01SIlverSc2
Car Audio Technical Discussions
3
04-03-2007 06:30 PM
95Probite
General Discussion
1
01-30-2005 01:56 PM
KingRukus
General Discussion
20
08-29-2004 11:56 AM
Hardcore Rock Superstar
General Discussion
2
07-23-2004 07:52 AM
Blinddemonz
General Discussion
18
06-15-2004 12:34 AM


Thread Tools
Search this Thread
Quick Reply: Help with port measurements?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.