Slot vent dimensions

[acreature 10+ year member]

Alright, you guys confuse me with all of the math, so I'll just ask outright.

I'm gonna build another box, but for a 10" this time. I'll have 1.6 cu.ft. of space, and it'll be 12" Tall (inside dimension)

Fs 29

Qts .25

Qms 5.29

Qes .27

Vas 2.32 (cu ft)

Xmax 1.14"

My question is what would the width and length be for the vent tuned to 42Hz?

I've had an online calc state over 5 inches of width //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

Can anyone help?

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[mazdakid 5,000+ posts]

so the box is 1.6 after displacements or what? and the port is going to be 12" tall?

 

[acreature 10+ year member]

Yeah... 1.6 after...... I can work out the interior space better once I can obtain the vent length and width with the 12" height.

 

[mazdakid 5,000+ posts]

you can make the port 12" tall 2" wide and about 19" long

 

[mazdakid 5,000+ posts]

or you can do 1.75" wide and make it 16" long

 

[acreature 10+ year member]

Basic n00b ??, but why is the slot wider as it gets longer? Makes no sense...... (me = n00b)

 

[mazdakid 5,000+ posts]

the more port area you have in a box, the longer the port is gonna have to be to get your tuning

 

[acreature 10+ year member]

Thanks