something wrong?

spyder6 · 21st February 2005, 05:56 PM

I used winISD pro to model a Dayton quatro 15"in a br and came up with this ; 7.3 cu. ft. with a 4"x8.4'' port. I'm not sure if this is right, because of others i've seen use a much longer port&smaller box,(winISD says -3 db@20 hz). Is this right or wrong? If it's wrong what was my mistake?

simon5 · 21st February 2005, 06:46 PM

Your box is well designed. You could go down to 6.5 cu. ft with a 10 inch long 4" diameter port, this will be a bit closer to room gain in a standard room.

If you go smaller, the port need to be longer, that's why you saw that.

spyder6 · 21st February 2005, 07:58 PM

Simon5, you are a good man thank's for your help!

21st February 2005, 05:56 PM	#1
spyder6 diyAudio Member Join Date: Feb 2005 Location: state of confusion	something wrong? I used winISD pro to model a Dayton quatro 15"in a br and came up with this ; 7.3 cu. ft. with a 4"x8.4'' port. I'm not sure if this is right, because of others i've seen use a much longer port&smaller box,(winISD says -3 db@20 hz). Is this right or wrong? If it's wrong what was my mistake?

21st February 2005, 06:46 PM	#2
simon5 diyAudio Member Join Date: Nov 2004 Location: Québec, Québec	Your box is well designed. You could go down to 6.5 cu. ft with a 10 inch long 4" diameter port, this will be a bit closer to room gain in a standard room. If you go smaller, the port need to be longer, that's why you saw that. __________________ DIYaudio for President !

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21st February 2005, 07:58 PM	#3
spyder6 diyAudio Member Join Date: Feb 2005 Location: state of confusion	Simon5, you are a good man thank's for your help!

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