What is my box tuned to?

[jlanebpc 10+ year member]

hello all

i have a box that is 26 wide 15 1/2 tall and 16 1/2 deep. it is slot ported on the side 2 inches wide 13 1/2 tall and 12 inches deep.. made out of 3/4 mdf

i know the box is 3 cubes but whats it tuned to and how do yall find it out ?

thanks for all input

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[brandinooooo 10+ year member]

2.43 cubes @ 45.6hz

 

[RAM_Designs 5,000+ posts]

The box is 15.5" tall, you're using 3/4" MDF, but your port it 13.5" tall?

 

[dB-SPL 10+ year member]

15 1/2 tall and 16 1/2 deep. it is slot ported on the side 2 inches wide 13 1/2 tall

Where does the extra 1/2" come from on the port height?