Think Kicker's plans are off :-/

[iamamp3pimp 5,000+ posts]

I had that spreadsheet.

Youre saying that if i put 3.0 cubic feet into winisd as the box volume.......it is gross, and not net? ar far as the port displacement goes?, and then create a porrt displacement, it is all contained within that 3.0 cubic feet?

 

[tommyk90 5,000+ posts]

I had that spreadsheet.
Youre saying that if i put 3.0 cubic feet into winisd as the box volume.......it is gross, and not net? ar far as the port displacement goes?, and then create a porrt displacement, it is all contained within that 3.0 cubic feet?

winISD calculates the port tuning for a GROSS box, it does NOT factor in the displacement of the port you put into it. Thus, the only time that winISD is accurate with the tuning is if the port is not inside the box (i.e. external ports).

And you don't have my spreadsheet seeing as I made it. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[iamamp3pimp 5,000+ posts]

winISD calculates the port tuning for a GROSS box, it does NOT factor in the displacement of the port you put into it. Thus, the only time that winISD is accurate with the tuning is if the port is not inside the box (i.e. external ports).

And you don't have my spreadsheet seeing as I made it. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

i had one...i thought it was yours, but i could be wrong.

so winisd calculates gross volume.......I did not kno that

I thought the ft^3 that you put in the front, was net.

 

[tommyk90 5,000+ posts]

i had one...i thought it was yours, but i could be wrong.
so winisd calculates gross volume.......I did not kno that

I thought the ft^3 that you put in the front, was net.

Well, since i never gave mine out, i don't think it's mine. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

And nope, winISD does not factor in port or sub displacement. Hence why i used to figure out boxes with a combination of paper and winISD.

 

[hoodkid 10+ year member]

Well, since i never gave mine out, i don't think it's mine. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
And nope, winISD does not factor in port or sub displacement. Hence why i used to figure out boxes with a combination of paper and winISD.

SO are kicker's plans off?

 

[tommyk90 5,000+ posts]

SO are kicker's plans off?

As far as I (and a few other people) can tell, yes.

 

[vetkilr 10+ year member]

SO are kicker's plans off?

Heres your Sign//content.invisioncic.com/y282845/emoticons/yes.gif.2d6d3882a589966b8145fbc57db57f33.gif

 

[hoodkid 10+ year member]

so the box i build is basically trash, and money wasted, I'm sue'in kicker for this //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[vetkilr 10+ year member]

Good SPL box

 

[hoodkid 10+ year member]

I have no need for a spl box, I dont have plans for any comps or anything, just guess i just wasted $30 dollars

 

[hoodkid 10+ year member]

I'm thinkin I should do 2.5 @ 36 or 3.5 @ 36 cant decide though

 

[tommyk90 5,000+ posts]

It didn't necessarily go COMPLETELY to waste. I'd still try it out in your car; once a box is in the car, things may change completely.

Another option would be for you to change the length of the port. I did some calculations, and if you change the port length to 24", then it would drop the tuning down to 35 hz.

 

[hoodkid 10+ year member]

My previous box was 2.95 @ 34hz and sounds way better, but making the port longer wouldn't that be almost impossible? I mean trying to get another peice of wood in there and all of that?

 

[tommyk90 5,000+ posts]

My previous box was 2.95 @ 34hz and sounds way better, but making the port longer wouldn't that be almost impossible? I mean trying to get another peice of wood in there and all of that?

It would be difficult, but not impossible.

 

[hoodkid 10+ year member]

It would be difficult, but not impossible.

I'll just sell the box locally, and just build another one, I wasn't satisfied enough anyways