Type R vented box HELP

[timpact14]

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

[PSturmer]

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]

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

[PV Audio]

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

[timpact14]

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

[miker]

Search google, for the RE box caculator.

[timpact14]

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]

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

[timpact14]

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

[miker]

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

[timpact14]

cool, thx man i like this program better

[BuckyBoy]

http://i251.photobucket.com/albums/gg294/SMCustomz/SM%20Customz/232-.jpg
26Wx15Hx16D
2ft^3@32Hz
If you want all the dimensions PM me.

[BrianChia]

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

It's the same thing. :)

[PSturmer]

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]

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

[BrianChia]

That is true but you also get more port noise that way. The less the port turns the better, and you can thus use less port area and a shorter port.

[PV Audio]

It's the same thing. :)Nope, not the same thing. :eek:

[PV Audio]

**** brian, you're a may '07, you wouldn't know what I'm talking about :(

Suffice it to say, a dear member here, among other things, tried to convince the forum that vented and ported were two completely different things :laugh: