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RKPsk8er
05-29-2008, 05:46 PM
winISD says that with 3 cubes @ 34hz needs a 6" aeroport needs to be 16.78" including flanged in correction.

I then checked for two 4" aeros with 3 cubes @ 34hz and it says 16.05" including correction for flanged ends. My question is if this means each of the 4" ports needs to be 16.05" or if it means that I need 16.05" of total port length.

Thanks!

SPY
05-29-2008, 06:34 PM
Each one would need to be 16.05

ALHII303
05-30-2008, 01:15 AM
Na it means 16.05 between the two

mapolley07
05-30-2008, 02:03 AM
i made a thread on this a few days ago, the answers i got were that each port needs to be the length that win isd specifies, so each port would be 16.xxx long

helotaxi
05-30-2008, 02:38 AM
Since when does WinISD do flared port calculations? Flanged and flared are not remotely the same thing.

SPY
05-30-2008, 08:55 AM
lol, i missed that part.

You want to select "two free ends"

PV Audio
05-30-2008, 09:54 AM
Na it means 16.05 between the twoShut up, you're wrong. It's 16 a piece as SPY said.

SPY
05-30-2008, 11:37 AM
16.97 each to be exact

Mr Cabinetry
05-30-2008, 12:06 PM
I found some information relative to the question. I had posted this on another forum some time ago when the discussion came up:

http://www.subwoofer-builder.com/port-flares.htm
Scroll down about a third of the page: Effective Length

Phil
Woodlawn Cabinetry

SPY
05-30-2008, 01:11 PM
I didn't read all of that, but if you read the instructions that come with PSP aeros they say the overall length of the port (with both flair ends installed) needs to be 1" longer than your desired port length.

It looks like that link just describes why.

Mr Cabinetry
05-30-2008, 01:32 PM
I didn't read all of that, but if you read the instructions that come with PSP aeros they say the overall length of the port (with both flair ends installed) needs to be 1" longer than your desired port length.

It looks like that link just describes why.

That's why I posted it.

ALHII303
05-31-2008, 02:23 AM
***** you shut up

helotaxi
05-31-2008, 02:40 AM
***** you shut up

WTF is your problem? You're wrong, act like a man and deal with it instead of grousing like a little girl.

Mr Cabinetry
05-31-2008, 02:23 PM
***** you shut up

Just WTF is your problem??? You have some wild hair up your azz about not wanting to learn something or that you rather just be an ignorant fool telling people you think you actually what your talking about?

SPY
05-31-2008, 02:36 PM
:titanic:

Mr Cabinetry
05-31-2008, 02:41 PM
:titanic:

^^^^^^ I like it, pretty much sums up where this is heading:banghead:

PV Audio
05-31-2008, 10:03 PM
LOL I didn't think he was going to take that comment to heart; I didn't realize there were 7th graders on here.

RKPsk8er
05-31-2008, 10:51 PM
okay I missunderstood flanged and flared.

whats flanged mean?

BrianChia
05-31-2008, 11:05 PM
It means that the end of the port is flush against a surface. A regular tube port would be considered flanged on one end and free on one end. If the port extended out of the box it would have two free ends. Unless your ports are very large, the difference in tuning is usually negligible when everything is taken into account.