just a quick ? on bcae1 calc

[Strecker25 10+ year member]

now when i get my dimensions and everything set up to the way i want it, if id like to use the already existing height (box is 17", 3/4 inch wood so port is 15.5" tall) can i just make the width of the port so that port area remains the same as it was originally and keep the length to what it says it should be?

Click to read more...

 

[Thuracine187 10+ year member]

You have to give more info on the box like what your what it tuned, volume, and the rest of the dimensions

 

[jellyfish420 10+ year member]

now when i get my dimensions and everything set up to the way i want it, if id like to use the already existing height (box is 17", 3/4 inch wood so port is 15.5" tall) can i just make the width of the port so that port area remains the same as it was originally and keep the length to what it says it should be?

if i understand you correctly, once you make it shorter, then make the port wider you will greatly reduce the airspace in the box. you need to recalculate your port length with the new volume of the box after it is shortened. but just to make sure...more info on what your doing,please...

 

[Strecker25 10+ year member]

well put it this way, if i change the width and height of the port, while keeping port area and port length unchanged, does this affect tuning?

ex: say i have a 3x5" port, 10 inches long . Can you change the dimensions to 15"x1" and leave the 10 inch length the same?

 

[reed8857 10+ year member]

I a complet dummy but from what I have read it will change the tune...however I would not take just my word at this...

 

[squeak9798 5,000+ posts]

All that matters is the cross-sectional area of the port. If that doesn't change (regardless on which dimensions are used), then the tuning won't change.

15sq.in. = 15sq.in.

 

[Strecker25 10+ year member]

Thanks Squeak, exactly what i was looking for.

 

[Thuracine187 10+ year member]

the pL would be the same only if the box volume is the same. if the volume is differt than you gonna have to change the port lenght

 

[jellyfish420 10+ year member]

ya it'll be the same...i thought you were making the whole box shorter.