Please help me fix my enclosure

[Jkidd288]

So i built a 6.25 cu ft box tuned to high 20's and the port resonates on the inside of the box. This caint be heard from in the car but outside it can be. How can i strengthen the port and box to eliminate this without adding more screws? Would fiberglassing the inside not including the port area work? Im also looking to decrease my box volume just a smudge. Maybe half of 1 t^3

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[mylows10 5,000+ posts]

F your getting port noise. You may need to add screws to stabilize the port. As far as making the box smaller. Add 45s in the corners

 

[Cloud77]

If you can't hear it in the car I wouldn't worry. Now you know what to do on the next build

 

[Jkidd288]

F your getting port noise. You may need to add screws to stabilize the port. As far as making the box smaller. Add 45s in the corners

45s?

 

[mylows10 5,000+ posts]

Yes 45s. Angled pieces of wood in the inside corners

 

[Jkidd288]

Yes 45s. Angled pieces of wood in the inside corners

Ahhh, i see now. Thanks alot.