Fi Q 15" Box.

[na_rsx 10+ year member]

3.5cubes @ 32Hz sounds VERY nice in the GF's car...

yes it did, mighty **** good if i might add

 

[sqhertz 5,000+ posts]

This would work also if you want to do 12^2 per cube:
http://www.subwoofertools.com/forum/ported-box.asp?Ew=29&Eh=15&Dia=9&Xmax=16&Vd=.19&NumW=1&Vb=3.5&Fb=30&Qts=&Vas=&Fs=&CE=0

so my last design is good? //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif ?

how much of a differance would it be between ~15sqin and 12sqin of port and 32 vs 40in long?

 

[sqhertz 5,000+ posts]

meh?

 

[mlstrass 5,000+ posts]

I "believe" the bigger port area is more of an SPL design, so it "might" affect SQ some. You don't need more than 12^2 for what you're doing, that much I'm sure of. The box I did was exactly that and has very good SQ and output...

 

[mlstrass 5,000+ posts]

yes it did, mighty **** good if i might add

Ah yes, the midnight demo that almost had me sleeping on the couch //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[sqhertz 5,000+ posts]

I "believe" the bigger port area is more of an SPL design, so it "might" affect SQ some. You don't need more than 12^2 for what you're doing, that much I'm sure of. The box I did was exactly that and has very good SQ and output...

sounds good. i just want the box to fill as much of the trunk area as possible. also a bigger box = more efficient , right?

came up with this - http://www.subwoofertools.com/forum/ported-box.asp?Ew=29&Eh=15&Dia=9&Xmax=18&Vd=.19&NumW=1&Vb=3.8&Fb=30&Qts=&Vas=&Fs=&CE=0

13^2 in per cuft , 34 in long.

the build may start later than expected as the seller ran into some problems //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif .

 

[mlstrass 5,000+ posts]

You'll want the box at least 16" tall....Also you can go 4+ cubes if you so desire...

 

[mlstrass 5,000+ posts]

You'll want the box at least 16" tall....Also you can go 4+ cubes if you so desire...

 

[mlstrass 5,000+ posts]

You could do 4cubes @ 32Hz, should work for what you want. Also if you plan to add any bracing/45's or double baffle, then design the box bigger to account for that.

 

[sqhertz 5,000+ posts]

You'll want the box at least 16" tall....Also you can go 4+ cubes if you so desire...

why 16" tall? itll be 15.75" with the double baffle. sub up port back. i should be able to get away without bracing , right?

also , i may be getting a car soon and gonna build another box for that.

http://www.subwoofertools.com/forum/ported-box.asp?Ew=32&Eh=18&Dia=9&Xmax=20&Vd=.19&NumW=1&Vb=4&Fb=30&Qts=&Vas=&Fs=&CE=0

http://www.subwoofertools.com/forum/ported-box.asp?Ew=32&Eh=18&Dia=9&Xmax=18&Vd=.19&NumW=1&Vb=4&Fb=32&Qts=&Vas=&Fs=&CE=0

i should be good with either of those , right?

again , thanks for all the help.

//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[mlstrass 5,000+ posts]

My bad, forgot it was sub up.....

 

[sqhertz 5,000+ posts]

http://www.subwoofertools.com/forum/ported-box.asp?Ew=29&Eh=15&Dia=9&Xmax=18&Vd=.19&NumW=1&Vb=3.8&Fb=30&Qts=&Vas=&Fs=&CE=0

chose to go with this design. im starting the build today.

 

[mlstrass 5,000+ posts]

Looks good. Be sure to give feedback on how it sounds when you're done...

 

[sqhertz 5,000+ posts]

Looks good. Be sure to give feedback on how it sounds when you're done...

will do.

if , i only had like 2 or 3 more clamps id almost be done. and the piece i thought i could use as a double baffle is 30 x 24" and i need it to be 29 x 25.5". so close. //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

could i do without a second baffle or should i throw one on just to be safe?

pictures shortly.

 

[sqhertz 5,000+ posts]

pics.

none of the clamps are deep enough to get to the port walls. used a scrap piece to help out.

no router , so im using a pad sander to round corners.

this build is going much faster than my others. i believe this is my 6th or 7th box.

//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif