Type R vented box HELP

[timpact14 10+ year member]

running 1 1222d @ abt 500w rms in a 1990 chevy blazer. im limited in the space, i have abt 26"w(max) x 14 - 16"h x 14 - 16"d. looking to tune it to abt 30-32hz with abt 1.6 to 1.8 cuft....the plan below is almost perfect, if i can figure out how to make the width to abt 25.5" and keep the cuft and tuning close...any help greatly appreciated. thx

http://img62.imageshack.us/my.php?image=16cubes32hz25sqin9rn.png

Click to read more...

 

[PSturmer 10+ year member]

just use this.....

your gonna want it 2 cubes net with about 35-40 sq inches of port area.

http://www.subwoofertools.com/forum/ported-box.asp

 

[miker 5,000+ posts]

1.5" wide port.. so the port walls are 11.75in, and 8in.

 

[PV Audio 5,000+ posts]

If I were you, I would make it ported instead of vented.

 

[timpact14 10+ year member]

oops! i meant ported. let me give this program i try

 

[miker 5,000+ posts]

Search google, for the RE box caculator.

 

[timpact14 10+ year member]

this is what i came up with..what do u guys think?

http://www.subwoofertools.com/forum/ported-box.asp?Ew=25.00&Eh=16&Dia=6&Xmax=18.1&Vd=.071&NumW=1&Vb=2.0&Fb=32&Qts=&Vas=&Fs=&CE=0

 

[miker 5,000+ posts]

You would get more air space doing a right angle port...

 

[timpact14 10+ year member]

r u talking abt the port pieces cut @ a 45 degree?

 

[miker 5,000+ posts]

No? http://www.reaudio.com/speaker_box/LPort_Box_Calc.html

 

[timpact14 10+ year member]

cool, thx man i like this program better

 

[BuckyBoy 10+ year member]

26Wx15Hx16D

2ft^3@32Hz

If you want all the dimensions PM me.

 

[BrianChia 10+ year member]

If I were you, I would make it ported instead of vented.

It's the same thing. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[PSturmer 10+ year member]

this is what i came up with..what do u guys think?
http://www.subwoofertools.com/forum/ported-box.asp?Ew=25.00&Eh=16&Dia=6&Xmax=18.1&Vd=.071&NumW=1&Vb=2.0&Fb=32&Qts=&Vas=&Fs=&CE=0

its good. but i would make it 2.5 net if you can.

 

[PSturmer 10+ year member]

You would get more air space doing a right angle port...

umm no you wouldn't. you get a better port length to volume ratio with a 180 degree turn vs. 90 degree