Port bracing question

[JCsAudio]

to avoid inadvertently lowering tuning (i.e. effectively lengthening port, due to its proximity to the rear wall of your truck).

I experienced this with my truck box. I was aiming for 33 Hz and ended up with 31.5 Hz assuming due to close proximity of port to end of box. Its all good though as 31.5 Hz seems perfect.

[Surfer J]

Thank you all for answering all my questions. You all have been a great help.

[Queef]

Surfer J ,

Going to go sealed ?