Box for RF T212

[Padonak]

Hi guys! My English is not so good, but i think you understand me)

Now i have Rockford Fosgate T212d2.

My box is about 59liters without sub and port. Port dia is 9.5 centimeters, length is 20cm.

But port is make some bad noise on hi volume.

What box you recommend me to build?

Thanks)))

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[Padonak]

Please help with box for T2 12