Question About Passive Radiators

[RAM_Designs 5,000+ posts]

I'm currently running a 15" TC-3000, and the new PRs that TC has come out with seem quite interesting and have been tempting me for the past few days. I'm wanting to run 2-15" PRs along with the 3000, but I have a couple questions.

Do I need to adjust the size of the sealed box more than just for the displacement of the PRs? Or is there some other reason why I would need to make the box bigger?

Also, I have no idea what size box I should put the 3000 in, any suggestions?

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[loud-n-low 10+ year member]

i beleive box size goes down when using PR's