port tuning question

[brokeitagain 10+ year member]

i would rather be able to do it with brains rather than be lazy and use some online calculator like so many lazy fvcks do.

 

[dan5505 10+ year member]

out side dimensions are 13.5 high, 17.5 deep, 34 inches wide, its build from 3/4 MDFThe port in side dimentions are 3" wide 12" tall 14" deep

EDIT: driver displacement is .068

K, now calculate your net volume from that. You need to get the xmax value for the drivers. Put all that info into here. http://www.subwoofertools.com/forum/ported-box.asp

Adjust the tuning frequency until the correct total port area is found. Whatever that frequency is, is the frequency of the box with the drivers you chose.

 

[mobeious 10+ year member]

all u do is take the total cubic feet of the box and the size of the port and plug that into winisd and it will give u a port length, and lets say ur port length is 30" long but ur box is only 20" deep... the port has to go the difference of that each way not the length cut in half and L off each way ... mmm hope that makes since

 

[brokeitagain 10+ year member]

fk it iwill just build a fuking box that way i know it will be right

 

[dan5505 10+ year member]

calculating it didnt work?

 

[mobeious 10+ year member]

gimma the dimentions and ill do a draw up for ya

 

[brokeitagain 10+ year member]

out side dimensions are 13.5 high, 17.5 deep, 34 inches wide, its build from 3/4 MDF

The port in side dimentions are 3" wide 12" tall 14" deep

EDIT: driver displacement is .068

 

[mobeious 10+ year member]

how many subs what size

port in middle or side,,, subs up or foward,, port back or on same plane as sub

 

[brokeitagain 10+ year member]

i want to know how to figure tuning for a box like pictured at the beginning of this thread.does anyone see how the port is ran in that box?

 

[brokeitagain 10+ year member]

port and sub on same plane

2 subs

 

[RAM_Designs 5,000+ posts]

i would rather be able to do it with brains rather than be lazy and use some online calculator like so many lazy fvcks do.

everyone uses calcs...you're officially a dumbass.

 

[brokeitagain 10+ year member]

fvck u

 

[mobeious 10+ year member]

 

[brokeitagain 10+ year member]

this enclosure does not have the divider in the port

 

[mobeious 10+ year member]

if u dont have the divider u are going to have to put a 45 deflector in there

the port is to to long to go that far back and not L off or have a divider