Little help with areo ports

[Colt9699 10+ year member]

Using the box calculator on bcae.com I entered all the info it asks for and this is what it came up with.

net volume 2.956

port length 6.944

port area 25.133 squared

does this sound right for a box tuned to 48 hz with 2 x 4 inches ports?

this means both port tubes should be 6.944 each not iuncluding flares?

if not please help me out here and give me some better numbers.

This is for my rlp 15 btw.

I want to make this box just for competition well just for 1 comp.

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[Trixter 10+ year member]

this means both port tubes should be 6.944 each not iuncluding flares?

that length is including flares....subtract 5" from that and cut you center piece to that...the center will be 2" long.

 

[Colt9699 10+ year member]

Thanks Trixter!

Do the numbers look correct for what I am after?