cm, I assume.
I don't like Bazooka. But hey, if you're determined to use them, a vented box of 76L (2.68 ft^3) tuned to 36Hz will give you a lower F3 of about 37Hz. Not that good. If you want to shoot for -4dB instead of -3dB, go 4 ft^3 tuned to 30Hz to give you a 30Hz lower F4.
Quit on 1/23/2020 due to constant "file not found" errors on the server while trying to submit posts. It's one problem for your server to have an issue but totally different for it to, day after day, continue having issues that don't get fixed. The time we spend writing this content should not be considered so worthless that the server should feel free to destroy our content.