General Discussion General discussion about all things car audio, from pioneer, orion, alpine and eclipse.

How to calculate sub box volume from sub specs?

Thread Tools
 
Search this Thread
 
Old Mar 18, 2004 | 11:00 AM
  #1  
quick_lude's Avatar
Thread Starter
50 Watt CAFz'r
 
Joined: Jun 2001
Posts: 60
Question

CDT has sent me the following on their HD subwoofer line:
FS=30Hz
Vas=26L
X-max=20mm
X-mec=30mm
P-Dia=201.9mm
Sd=320 sq.cm
P-Vd=0.64Litres

Is P-Vd the recommended box volume? They didn't even specify if it should be sealed or ported. [img]graemlins/dunno.gif[/img]
Old Mar 18, 2004 | 12:54 PM
  #2  
Bigmike216's Avatar
1000 Watt CAFz'r
 
Joined: Oct 2003
Posts: 1,649
Post

do you want sealed or ported? I'll pop it into winisd for you if you'd like.
Old Mar 18, 2004 | 01:15 PM
  #4  
quick_lude's Avatar
Thread Starter
50 Watt CAFz'r
 
Joined: Jun 2001
Posts: 60
Post

Sealed please. [img]smile.gif[/img] I need this box as small as possible. I knew there is a program out there for this.. do you need more specs? I have them but they are all "chinese" to me.. [img]tongue.gif[/img]

Qes=0.44
Re=0.95ohm
Bl=8tm
Pe=600W

Qts=0.417
No=0.154%

Thanks.
Old Mar 18, 2004 | 01:33 PM
  #5  
Bigmike216's Avatar
1000 Watt CAFz'r
 
Joined: Oct 2003
Posts: 1,649
Post

.49 cubic feet is what winisd spits out. [img]smile.gif[/img]

[ March 18, 2004, 02:34 PM: Message edited by: bigmike216 ]
Old Mar 18, 2004 | 01:41 PM
  #6  
quick_lude's Avatar
Thread Starter
50 Watt CAFz'r
 
Joined: Jun 2001
Posts: 60
Post

Perfect, muchos gracias. [img]graemlins/thumb.gif[/img]
Old Mar 18, 2004 | 01:57 PM
  #7  
JRace's Avatar
1000 Watt CAFz'r
 
Joined: Jun 2002
Posts: 1,242
Post

You can find an online version of WinIsd here:
http://www.linearteam.dk/default.aspx?pageid=newdriver
Old Mar 18, 2004 | 02:01 PM
  #8  
quick_lude's Avatar
Thread Starter
50 Watt CAFz'r
 
Joined: Jun 2001
Posts: 60
Post

Yeah, thanks. [img]smile.gif[/img] I googled the name after.. I just couldn't remember the program name before. [img]graemlins/banghead.gif[/img]
Old Mar 18, 2004 | 02:51 PM
  #10  
quick_lude's Avatar
Thread Starter
50 Watt CAFz'r
 
Joined: Jun 2001
Posts: 60
Post

Originally posted by defro:
not enough parameters for a correct plot, need qts and preferrablt re
Look at the fourth post in this thread. [img]smile.gif[/img]



All times are GMT -5. The time now is 09:04 AM.