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View Full Version : Finished Dual 10" Ported box PICS. Help me pick out subs



Ian32688
06-21-2009, 09:33 PM
ok first off the dimensions..

Internal Net Volume (29.75Wx15.25Dx13H/1728=3.41 cu ft)

Port dimensions: 13Hx3W=39 >> 13x3.75x24L=.677 cu ft

3.41-.677=2.733/2=1.3665 cu ft/sub (without sub displacement)


this is my first box...designed it myself...can someone let me know if im supposed to use the net volume or gross volume with the calculator here http://www.carstereo.com/help/Articles.cfm?id=31

and here are the pics...so be nice and any suggestions for which sub would be great

http://i40.tinypic.com/10cr97o.jpg

http://i44.tinypic.com/14w8znd.jpg

http://i41.tinypic.com/23u8tc6.jpg

revrider1
06-21-2009, 09:34 PM
Nice box...

Dj Arr
06-21-2009, 09:39 PM
two aq hdc3 10's

Ian32688
06-21-2009, 10:03 PM
two aq hdc3 10's

top of my list right now....but my cutouts are 9 1/8...and it calls for 9.4" how close if not exact does the cutout have to be to the subs specified cutout

and if someone doesnt mind answering my question in original post about whether or not to use net or gross volume in calculating port length

99grandprixGT
06-21-2009, 10:05 PM
would of been good idea to choose the subs first, so you would not run in to that problem. but ya AQ look like a good choice.

406er
06-22-2009, 12:02 AM
how wide is the shared port and how wide are each indavidual port(along the back)

Ian32688
06-22-2009, 12:13 AM
how wide is the shared port and how wide are each indavidual port(along the back)

all 3 inches wide

thegreatestpenn
06-22-2009, 12:17 AM
nice box, but the hdc3 is kinda heavy for a single baffle box. if that's a double-baffle, nevermind

KHARPS
06-22-2009, 12:18 AM
Nice job on the box. But if the port is 3'' wide it is supposed to 90 1.5'' from the back wall

Ian32688
06-22-2009, 12:20 AM
nice box, but the hdc3 is kinda heavy for a single baffle box. if that's a double-baffle, nevermind

ya i was thinking the same thing...it is single baffle. i had so much fun making this box because ive never done anything like it before and ive learned a lot from both research and little mistakes i made along the way...like jigsawing straight lines on the wood ha..

thegreatestpenn
06-22-2009, 12:22 AM
you could always make a 2nd front baffle if you do go with the hdc3 and slap it on the front.

Ian32688
06-22-2009, 12:22 AM
Nice job on the box. But if the port is 3'' wide it is supposed to 90 1.5'' from the back wall

****...whats this gonna do..i dont think its gonna be very easy to finagle another piece of wood in there

KHARPS
06-22-2009, 12:25 AM
****...whats this gonna do..i dont think its gonna be very easy to finagle another piece of wood in there

I have no idea how it will effect the sound. Like you said man, you had a good time building it so worst comes to worst you have to build another one :cool: Might as well use it for a little while and build another one when you're ready. As far as the calc goes I would use the volume after port/sub displacements.

Ian32688
06-22-2009, 12:32 AM
I have no idea how it will effect the sound. Like you said man, you had a good time building it so worst comes to worst you have to build another one :cool: Might as well use it for a little while and build another one when you're ready. As far as the calc goes I would use the volume after port/sub displacements.

shouldnt you have SOME idea seeing how you brought it up! whats the reason for 1.5" away from the back wall...is this just something that is known

KHARPS
06-22-2009, 12:35 AM
shouldnt you have SOME idea seeing how you brought it up! whats the reason for 1.5" away from the back wall...is this just something that is known

1/2 the width of your port. I've never done it your way before so I don't know how it will exactly effect the sound. Every box I've seen that 90s along the back like yours has been done the way I said.

KHARPS
06-22-2009, 12:37 AM
I'm referring to boxes with the ports in the middle only...when they're off to one side then it's only a port width away from the back.

http://i313.photobucket.com/albums/ll385/tezin87/100_1969.jpg

Ian32688
06-22-2009, 12:43 AM
hrmmm well hopefully it doesnt cause horrible port noise or anything...been trying to google it but cant find out the reasoning behind this...heres my cat

http://i40.tinypic.com/wqsv9g.jpg

JBLCAMRY
06-22-2009, 12:50 AM
not a bad job on the actual construction.

but like the others said. that is not the correct port width for the start of the vent per chamber.


this is what i would do.

the port is 13" high. so on each side take 4 blocks of 3/4" mdf PER SIDE. that are 6.5" tall by the width of the pieces already there then glue and screw. that would make the two port beginings the correct width.

next time it should look like this.


http://i228.photobucket.com/albums/ee174/kirbycamry/100_2219.jpg

Ian32688
06-22-2009, 01:01 AM
not a bad job on the actual construction.

but like the others said. that is not the correct port width for the start of the vent per chamber.


this is what i would do.

the port is 13" high. so on each side take 4 blocks of 3/4" mdf PER SIDE. that are 6.5" tall by the width of the pieces already there then glue and screw. that would make the two port beginings the correct width.

next time it should look like this.


http://i228.photobucket.com/albums/ee174/kirbycamry/100_2219.jpg

ah very interesting!

so a few quick questions

the black is just spray paint??
so 4 blocks of 6.5"x width of the piece already in there, should i glue them together prior to screwing into my box? i think ill be able to manage this..will be a hassle but im sure its worth it.

and how do you make angled cuts like the ones you use in the corners for the ?corner supports?

JBLCAMRY
06-22-2009, 01:14 AM
ah very interesting!

so a few quick questions

the black is just spray paint??
so 4 blocks of 6.5"x width of the piece already in there, should i glue them together prior to screwing into my box? i think ill be able to manage this..will be a hassle but im sure its worth it.

and how do you make angled cuts like the ones you use in the corners for the ?corner supports?

in order of assembly.

http://i228.photobucket.com/albums/ee174/kirbycamry/1-8.png

http://i228.photobucket.com/albums/ee174/kirbycamry/2-7.png

http://i228.photobucket.com/albums/ee174/kirbycamry/3-3.png

http://i228.photobucket.com/albums/ee174/kirbycamry/4-4.png


and the 45's were cut with a table saw. although some circular caws have the same capability.

JBLCAMRY
06-22-2009, 01:20 AM
and yes its just flat black spray paint.