How Off Is RE Calculator??

[Got_Bass89 10+ year member]

Can someone tell me what they get for my boxs tuning and cuft??

Highth 16.5" Depth 15" Width 30"

2" Port... First port piece 12.25" Long.. Secord Port piece is 8.75" Long... Total 21" port length

RE came up with 2.9cuft(before displacements of corse) and 30.8hz....

Click to read more...

 

[Ali1 10+ year member]

not sure how off is it, but i've built two different designs and they both had terrible output

 

[wasted ink 10+ year member]

not sure how off is it, but i've built two different designs and they both had terrible output

howso?

 

[azbass 5,000+ posts]

Im sure they designed it too be way off and not very accurate at all.

 

[81elocd]

its not off if you read it right

instead of reading what the length of L1 and L2 is for the port walls just find where it says "total port length"

make your port that long and you wont have any problems //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[Got_Bass89 10+ year member]

Well Port L1 + L2 = "total port legth" so donno why that would matter lol... Anyone do it on their own and come up with something different????

 

[81elocd]

Well Port L1 + L2 = "total port legth" so donno why that would matter lol... Anyone do it on their own and come up with something different????

l1 + l2 should equal total port length... but in that calculator it doesnt

do what i said, then come back and tell me it doesnt work //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[Korn4Life 5,000+ posts]

I think its pretty close

 

[wasted ink 10+ year member]

yea i just tried it.

port L1 - 21

port L2 - 7.5

"total port length" - 42

21 + 7.5 = 42? //content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif

 

[mcsoul 10+ year member]

yea i just tried it.
port L1 - 21

port L2 - 7.5

"total port length" - 42

21 + 7.5 = 42? //content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif

sounds like it's a broke-ass tool

 

[Pioneer~Saturn 5,000+ posts]

They dont add up because you guys are just using the lengths which is the inside (shortest) side of the port...if you add up the length from the middle of the port and then add half of the port's width on top of that because its a slot port (because a little bit outside of the port inside the enclosure still acts like part of the port because the wall of the port keeps going because it's the side of the enclosure..) like you should..it should add up //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

...you nubs //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[chaunb3400 10+ year member]

It works...

 

[wasted ink 10+ year member]

good call man.. i dont know why i didnt think of that. obv the inside wall is less than outside, etc. i feel like an idiot.

 

[Pioneer~Saturn 5,000+ posts]

It works...

x2

 

[Pioneer~Saturn 5,000+ posts]

good call man.. i dont know why i didnt think of that. obv the inside wall is less than outside, etc. i feel like an idiot.

Haha...everyone messes up sometime