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

Help with calculation?! what is my box tuned to?

Thread Tools
 
Search this Thread
 
Old 09-02-2006, 01:32 AM
  #1  
50 Watt CAFz'r
Thread Starter
iTrader: (5)
 
ThaWeezord's Avatar
 
Join Date: Aug 2005
Posts: 93
Help with calculation?! what is my box tuned to?

I bought 2 12's recently and it came with 2 boxes. one box was for 2 subs and another for just 1 sub. the one for two of them had one of the sides sealed off making it for just one sub when it was designed for two. So i would like to know what this box is tuned to because i liked the way this sounded compared to the smaller single sub box.

sub using is a Rockford T2 12"

outside dimensions (may be off by an 1/8 or so):

36" x 15" x 19 1/4"

Port:

3" gap
13.5" tall
12 3/4" deep into the box.

leaves a little over 6 3/4 from the back wall.


Can somebody PLEASE help me and tell me what this box is tuned to?!?

Thanks!
Justin
ThaWeezord is offline  
Old 09-02-2006, 07:26 AM
  #2  
50 Watt CAFz'r
iTrader: (3)
 
crabmustang's Avatar
 
Join Date: Jun 2006
Posts: 319
Assuming your box is made from 3/4" Mdf then your internal size is 4.78 Cu. ft. minus .3 Cu. Ft. for port and roughly .2 Cu. Ft. for sub displacement that gives roughly 4.25 Cu. Ft. tuned to between 36Hz - 38Hz

Hope this helps

Garett
crabmustang is offline  
Old 09-02-2006, 09:51 AM
  #3  
500 Watt CAFz'r
 
hofulstrof's Avatar
 
Join Date: Nov 2004
Posts: 779
i think its more like 5 cf tuned to around 33 hz
hofulstrof is offline  
Old 09-04-2006, 02:02 PM
  #4  
50 Watt CAFz'r
Thread Starter
iTrader: (5)
 
ThaWeezord's Avatar
 
Join Date: Aug 2005
Posts: 93
thanks guys.

yes, it's 3/4" sorry to leave that out. i know its low 30's (well i hope) because thats what i wanted to tune my next box to so i wanted to see if i am on the right track...

would putting another 12" in that box change the tune much?
ThaWeezord is offline  
Old 09-04-2006, 08:00 PM
  #5  
2000 Watt CAFz'r
iTrader: (20)
 
Killer_klown187's Avatar
 
Join Date: Dec 2005
Posts: 2,810
Well seein as how I built this, it was supposed to be tuned to 36htz...:d
Killer_klown187 is offline  
Old 09-04-2006, 10:36 PM
  #6  
50 Watt CAFz'r
Thread Starter
iTrader: (5)
 
ThaWeezord's Avatar
 
Join Date: Aug 2005
Posts: 93
^^^ lol thanks wayne. you weren't online and i was going away for the weekend so this was the best way! :P
ThaWeezord is offline  
Old 09-04-2006, 10:39 PM
  #7  
2000 Watt CAFz'r
iTrader: (20)
 
Killer_klown187's Avatar
 
Join Date: Dec 2005
Posts: 2,810
ahhh Anytime just email me man, I check my email all the time
Killer_klown187 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
sk88er44
Car Audio Technical Discussions
2
03-19-2010 09:43 AM
suspeck
Enclosure Design & Construction Help
15
03-07-2010 11:07 PM
fresh1
Enclosure Design & Construction Help
15
09-30-2009 07:37 AM
crazykev81
Enclosure Design & Construction Help
9
12-24-2007 04:28 PM
Mat-Romain
Enclosure Design & Construction Help
1
10-17-2006 10:26 AM



Quick Reply: Help with calculation?! what is my box tuned to?



All times are GMT -5. The time now is 10:59 PM.