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Old 18th November 2002, 09:37 AM   #1
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Join Date: Nov 2002
Location: brisbane
Question Ported vs sealed 2 ways

I was hoping some of the learned would offer me some advice....

I am about to build a pair of two ways using vifa drivers
the plans I am using call for a 23.5L ported enclosure

I have read on another site that diy-ers are better off with sealed boxes - more room for error etc

what differences would be caused by using a sealed box..... should it be a different volume to the above?

If anyone can point me to some good sites about this issue I would be grateful. cheers
I think I need a bigger boat....
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Old 18th November 2002, 10:17 AM   #2
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Location: brisbane
nearly forgot.......

would the xover need changing if a box was sealed instead of ported????


I think I need a bigger boat....
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Old 18th November 2002, 11:48 AM   #3
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Location: London
not sure if i classify as learned but i'll reply anyway.......

firstly, the drivers - I've used these and they are both decent units. you might want to consider the D27TG as an alternative tweeter. i prefer the sound personally, and i think its a little cheaper (could be wrong there tho).

as for the sealed versus ported, i wouldn't say vented boxes are any more difficult for a diy-er. there's just as much margin for error in the volume too - i find it best to tune the port by ear by changing the length until i get the bass response i like. some people seem not to like vented boxes because of low frequency transient characteristics and things like that, but for a two way i personally think you're better off with an extended bass response than worrying about phase issues too much.

for a sealed box your volume would need to be different. there's plenty of freeware programs which will calculate this for you.

hope that helps.
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Old 18th November 2002, 08:22 PM   #4
JoeBob is offline JoeBob  Canada
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And if you do decide to go with a sealed enclosure, you won't need to modify the crossover. I've paired two P17WJ-00-08s with a D25AG35-06 in a ported enclosure and I really like them alot. Hope your project works out well for you.
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