box building help

[itzme218 0]

I got a SS 12" RL-p and found a ported box design (from aneonrider) and want to try building it, but i'm having some trouble understanding it. Here is the cut sheet

Cut Sheet

32.000 x 13.750 Top

32.000 x 13.750 Bottom

15.000 x 13.750 Sides

28.500 x 15.000 Front

30.500 x 15.000 Back

11.000 x 15.000 Port 1

25.000 x 15.000 Port 2

3.500 x 15.000 Port 3

I tried drawing it out but i don't understand the ports and spacing, can someone explain it to me? also what is port displacement?

The box is suppose to be 2'^3 tuned to 28hz

Port Displacement

0.226 Length 1

0.460 Length 2

0.095 Length 3

0.257 Wood

1.038 Total

Thanks for viewing and much more thanks for helping

[Supa_c 1]

cut it out in wood

port displacement is how much enclosure volume the port occupies.

Its not part of the enclosure really

[djjdnap 78]

i'm sure he wouldnt give you bunk patterns.

I'm guessing its a slot port.

So basiclly wherever the front stops at, that extra space left is gonna be the port length.

like

----------- |

.front...port

-------|.....|

if that makes since

[itzme218 0]

yeah, but I'm confused on the ports, this is all i can come up with but it does not look right....its not ported

[djjdnap 78]

http://img211.imageshack.us/my.php?image=samp3rb5we.jpg

its not letting me post the pic, but oh well...

I get the rest of it, i just dont get wher the 3.5 is coming from

since 30-28.5=1.5...

but the inside is most likely correct, that 25in piece doesnt go all teh way to the wall, since it is 28.5...

OHHHHH, ok, 28.5-25=3.5

So, yea, that is correct, i think i dont see why the port is inside of the box though...

[itzme218 0]

i'm going to just try it out, o well if it doesn't work; then i'll just pay someone for a design, either that or go visit powered4sound and buy one of their boxs if i come up with the extra money. Thanks

[djjdnap 78]

its actually ported...

Just diffrent from what i've seen..

Basiclly its two openings, 1 on the inside thats the 3.5 opening and the other is on the front wt the 1.5 opening.

[60ndown 0]

just build a sealed box @ 1.25'^ simple build great results guarenteed-you will get your 28 hz easy.

[mrray13 30]

ok...

the overall box length is 32", not 30"

the external box size is going to be 32"l x 15"t x 15"d..SO...

ur cut sheet will ACTUALLY be...

top, bottom....32" x 13.5" (not 13.75")

sides.....15" x 13.5" (not 13.75")

front....27" x 15" (not 28.5")

back....30.5" x 15"

so ur port is going to be 3.5"w x 13.5"t x

but that design is whacked somehow...with that much port area..u need like 70"+ of port...

build this box....

top,bottom.....30.5" x 15"

sides....13.5" x 15"

front......27" x 13.5"

back......29" x 13.5"

ur port will be 2"w x 13.5"t x 41.125"l....

first port wall.....13.5" x 11.5"

second port wall.....13.5" x 24.25""

tada.....2ft^3 tuned to 28hz...

port layout----->

wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

[ANeonRider 3]

Where did you find this design?

[mrray13 30]

Where did you find this design?

lol...it's whacked, ain't it?! surely, it can't be one of urs unless somehow numbers got screwed up...

wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

[itzme218 0]

mrray13: thanks so very much, you saved me the cost of the wood(hence right b4 i went to go buy it I checked this again)

ANeonRider: i found this design from an old post of your, it was from the excel sheet you posted.

Off to buy wood and build the box for some 4th of july fireworks boooooom

[mrray13 30]

mrray13: thanks so very much, you saved me the cost of the wood(hence right b4 i went to go buy it I checked this again)

ANeonRider: i found this design from an old post of your, it was from the excel sheet you posted.

Off to buy wood and build the box for some 4th of july fireworks boooooom

u welcome...

and could u post a link to aneon's post?

wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

[ANeonRider 3]

lol, I have no idea what post... and it probably was a bunked design that I used as an example if it was as messed as it is, I don't post designs that are perfect, kind of a kick in the nuts to any sort of side-business I do

[itzme218 0]

sure thing...

http://www.soundsolutionsaudio.com/forum/i...wtopic=2679&hl=

I went to home depot and bought wood. (they didn't make the cut to 13.5 it was a lil short) oh well i don't expect this box to be perfect, like you guys said, box design is a busines so i hope this would be somewhat of a typical 2'^3 tuned to 28hz box that's generic. But thanks so much for all the help. and now i go building.

[ANeonRider 3]

It has 2 bends... therefore three different port walls. One for the left side, one for the back, and one for the right side, with the entrance to the port on the right side.