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

4th order bandpass

Thread Tools
 
Search this Thread
 
Old Jan 2, 2007 | 11:10 PM
  #1  
zzzzzzz's Avatar
Thread Starter
4000 Watt CAFz'r
iTrader: (5)
 
Joined: Jan 2005
Posts: 4,643
4th order bandpass

how do i know how big the boxes need to be for a CONCEPT ZT 104 10" sub
Old Jan 3, 2007 | 12:08 AM
  #2  
zinger002's Avatar
1000 Watt CAFz'r
iTrader: (1)
 
Joined: Jul 2006
Posts: 1,445
you need to make basically the right cuf behind the cone but im not to sure how big to make it infront of the cone...
its to bad manufacturer's dont give these specs for their products hey.
4th order, 6th order and even 8th order if they thought someone out there was gonna make it just because they could.
Old Jan 3, 2007 | 02:28 PM
  #3  
zzzzzzz's Avatar
Thread Starter
4000 Watt CAFz'r
iTrader: (5)
 
Joined: Jan 2005
Posts: 4,643
someone
Old Jan 3, 2007 | 02:37 PM
  #4  
Dukk's Avatar
Administrator
 
Joined: Feb 2006
Posts: 16,860
Lightbulb

It's not that easy. There is no 'best' size. Bandwidth, depth, sensitivity, linearity, power handling are all juggled with bandpass boxes. Sealed bandpasses are a little easier than vented ones but there is still a lot to consider
Old Jan 3, 2007 | 02:48 PM
  #5  
zzzzzzz's Avatar
Thread Starter
4000 Watt CAFz'r
iTrader: (5)
 
Joined: Jan 2005
Posts: 4,643
i was thinking of 1.5cft with a 3" port 8"long and something like a 1cft sealed box
but i do not know how or what makes a good 4th order
Old Jan 3, 2007 | 03:45 PM
  #6  
zzzzzzz's Avatar
Thread Starter
4000 Watt CAFz'r
iTrader: (5)
 
Joined: Jan 2005
Posts: 4,643
ok
can someone here look at this and tell me how to do the math http://www.diysubwoofers.org/bnd/4thord1.htm
Old Jan 9, 2007 | 03:14 AM
  #7  
20Sunfire05's Avatar
50 Watt CAFz'r
iTrader: (1)
 
Joined: Oct 2006
Posts: 72
DECWARE's Death Box II - High Output Subwoofer

Take a look at this, the plans are worth the $10.
Old Jan 11, 2007 | 02:40 PM
  #8  
Audiophile72's Avatar
50 Watt CAFz'r
 
Joined: Oct 2006
Posts: 54
Do you have the T/S parameters for the driver? I've done a couple of searches but haven't had any luck.

Dukk is right tho...it's not always as straight forward with a bandpass but perhaps we can get you a good starting point.
Old Jan 11, 2007 | 03:11 PM
  #9  
zzzzzzz's Avatar
Thread Starter
4000 Watt CAFz'r
iTrader: (5)
 
Joined: Jan 2005
Posts: 4,643
http://www.concept-intl.net/download/subwooferspecs2005.pdf
the part with the port 1.5cft.what i need is what is the sealed box and the port size 3"x ?
Old Jan 11, 2007 | 05:20 PM
  #10  
Brad-S.A.'s Avatar
2000 Watt CAFz'r
iTrader: (35)
 
Joined: Jan 2005
Posts: 2,195
I maybe be able to give the dimensions of a universal type 4 th order that works with quite a few drivers that I designed.



All times are GMT -5. The time now is 07:05 PM.