posted
Is port displacement included by the program? If i put 5.3' as the box volume and it tells me to use a 2"x6"x12"l port will it be included in the box volume or do i have to add 1' to the 5.3'.....???
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posted
ghost man, I believe what icewall was trying to say...
WinISD u put in a box volume...thats your air space...so if u put in 5.3 then 5.3 is the airspace and the port size they give u, u add to that 5.3 so your box will really be like 144cubic inches bigger cause of port displacement...
Posts: 255 | From: NY | Registered: Oct 2002
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quote:Originally posted by Jip69: ghost man, I believe what icewall was trying to say...
WinISD u put in a box volume...thats your air space...so if u put in 5.3 then 5.3 is the airspace and the port size they give u, u add to that 5.3 so your box will really be like 144cubic inches bigger cause of port displacement...
Humm...this is gonnna get tricky then...i will have to keep subtracting box area as i add to the port length till i get a match...
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posted
Ok....i was tuning wrong anyhow....i need to peak at 53hz.....so i will need a port that is 24" long and my box volume - port will be 3.73'....dam that was much more involved than i thought it would be....
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then after u see what winisd tells u ur port length is u figure out ur ports total port VOLUME
so u add the 2 together
example:
5.3 + .7 for port... thats a 6 cube box but u dont put 6 cubes in winisd.... u just design the box as 6 cubes and put the port in that box.... see? simple.
Posts: 2730 | From: Clark,NJ | Registered: Sep 2000
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quote:Originally posted by IceWaLL: im not sure if u still get this...
u put in 5.3 cubes...
then after u see what winisd tells u ur port length is u figure out ur ports total port VOLUME
so u add the 2 together
example:
5.3 + .7 for port... thats a 6 cube box but u dont put 6 cubes in winisd.... u just design the box as 6 cubes and put the port in that box.... see? simple.
What i did was drop my boxvolume as the port got longer till they came to 5.3' combind....i have a total of 5.3' to work withso a 3.73' box + 1.56' of port come to 5.29' + wood thickness for the port gives me 5.3'....
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