rounding port corners?

[sub-FATHER 10+ year member]

does anyone have stories of db gain from rounding the port corners inside the box?

and should they be fully round like a 1/4 piec of pvc would do?

or

just have a straight piece of wood giving it like a 45 degree angle?

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[IDSkoT 5,000+ posts]

U Have 2!!!

If U Dont Than U Get Vba Or Violent Bass Air!!!!!!!!

 

[sub-FATHER 10+ year member]

U Have 2!!!If U Dont Than U Get Vba Or Violent Bass Air!!!!!!!!

does it change the frequency of the box? and what type is better round or 45's?

 

[IDSkoT 5,000+ posts]

does it change the frequency of the box? and what type is better round or 45's?

I was... joking.

However, there are a few cases where they've gotten better numbers.

And if you do it right, the port length shouldn't change.

And round is better.

The best port is a straight port. So, you're attempt to create a straight-port type of environment.

 

[sub-FATHER 10+ year member]

I was... joking.
However, there are a few cases where they've gotten better numbers.

And if you do it right, the port length shouldn't change.

And round is better.

The best port is a straight port. So, you're attempt to create a straight-port type of environment.

not an option making it straight, its 35 inches long and a L shape already

i was just wondering if anyone knew for sure before i decide to round the back corner of the loading wall

 

[spltuscon 10+ year member]

Yes.

Either option will work since they're both a lot better than a 90 degree bend. Round should be better but realistically it might not make to much difference as long as the airflow out of the port becomes significantly smoother. As far as changing the frequency...it shouldn't effect it as long as you don't alter the port "volume" by much (I mean adding a 45 degree corner that makes the port become narrower).

 

[stevew007 10+ year member]

does anyone have stories of db gain from rounding the port corners inside the box?
and should they be fully round like a 1/4 piec of pvc would do?

or

just have a straight piece of wood giving it like a 45 degree angle?

test test test test test //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[NoCoSPL 10+ year member]

Next box build i wanna try kerfed ports. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif Hunter has some type of PVC on his build that he says he gained dbs, you should PM him, he knows what he is doing, than again he builds fart boxes. //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif But im sure he will still know whats up

 

[sub-FATHER 10+ year member]

Next box build i wanna try kerfed ports. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif Hunter has some type of PVC on his build that he says he gained dbs, you should PM him, he knows what he is doing, than again he builds fart boxes. //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif But im sure he will still know whats up

lol

 

[supermaxx123 10+ year member]

I'm gonna try a 45 with my next box...

 

[Immacomputer 10+ year member]

As far as changing the frequency...it shouldn't effect it as long as you don't alter the port "volume" by much (I mean adding a 45 degree corner that makes the port become narrower).

Adding a 45 in the corner keeps the port width closer to actual around the bend, it doesn't make it narrower.

 

[stevew007 10+ year member]

most the time you cant tell by ear if a 45 helps. the only time you might be able to hear it might be just port noise it self