Kerf port

[Kickstand]

So I blew my sub
It was a DD 3510
I picked up a Sundown Audio X V.3 /10
The sub is fu**ing huge
Its too big for my box so I have to make a new one ( the magnet won’t even fit through the opening for the 3510)
I want to kerf the port
My plan is to have the sub and the port rear facing with the sub on the right and the port on the left
My question is is there a different way of calculating the port when it’s a kerf given that it makes the last few inches a bit wider than the rest
I want to do a fairly wide sweep/bend on it to showcase it a bit

If it makes a difference the plan is for the box to be 32”w x 13.5”h x 17”d
And the port to be be 3”w x 12”h x 23.9”l
I would like to do at least an 8” sweep for the kerf

 

[Flex12]

So I blew my sub
It was a DD 3510
I picked up a Sundown Audio X V.3 /10
The sub is fu**ing huge
Its too big for my box so I have to make a new one ( the magnet won’t even fit through the opening for the 3510)
I want to kerf the port
My plan is to have the sub and the port rear facing with the sub on the right and the port on the left
My question is is there a different way of calculating the port when it’s a kerf given that it makes the last few inches a bit wider than the rest
I want to do a fairly wide sweep/bend on it to showcase it a bit

If it makes a difference the plan is for the box to be 32”w x 13.5”h x 17”d
And the port to be be 3”w x 12”h x 23.9”l
I would like to do at least an 8” sweep for the kerf

 

[Flex12]

Why waste your time building and designing a kerf port box? Look at the research, there is no actual beneficial gain to rounding the outside of a port. If you want a kerf port “sound” then design the box to be ported with aero tubes. How many Hz are you trying to tune your box to?

 

[Flex12]

Here is a aero tube box design for the sundown 10 that you want to get. I tuned it down to 28hz based off of your dimensions

 

[SlugButter]

Half of the kerf is included in port length.