any1 that knows about 4th order bandpass boxes!!!

[oglejust 10+ year member]

ok i was told to do 2 cuft sealed and 3.1 cuft ported to 40 hz for my DD3515. i read a little bit about them and it says that playing under the tuned frequency could damage the sub, however if its 40hz almost everything will be under 40hz so should i keep this design or get a different 1?

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[jellyfish420 10+ year member]

ok i was told to do 2 cuft sealed and 3.1 cuft ported to 40 hz for my DD3515. i read a little bit about them and it says that playing under the tuned frequency could damage the sub, however if its 40hz almost everything will be under 40hz so should i keep this design or get a different 1?

thats not how it works. 40 might be what the port is tuned to, but your F3 will be way lower. and actually 40 sounds awfully low...

 

[jeremiah 10+ year member]

what?

 

[oglejust 10+ year member]

sh!t lol thats just what i was told to do... do u guys know how to design a 4th order bandpass? bc i could use some help lol

 

[oglejust 10+ year member]

so any1 wanna help?

 

[terra 5,000+ posts]

pm 80inches....the resident bandpass genius

 

[oglejust 10+ year member]

pm 80inches....the resident bandpass genius

yeah i was planning on doing that lol

 

[type[s5] 10+ year member]

If you think you can hack it...

http://www.diysubwoofers.org/bnd/4thorder.htm

 

[oglejust 10+ year member]

;3213819']If you think you can hack it...
http://www.diysubwoofers.org/bnd/4thorder.htm

thanx but i think im gonna have 80 inches make me a design