Slotted "maze" ports

[soldiermedic 10+ year member]

I'm working on yet another design, and I was wondering if anyone had pictures of an internal box with a long port that resembles a maze design before closing. Just trying to get an idea of a box that will have a total port length of about 60 inches will look like.

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[ascitiesburn69 10+ year member]

Why the hell do you need 60" of port length.....100sqin of port on a 1cuft net box tuning to 28hz???

 

[jdawg 5,000+ posts]

Why the hell do you need 60" of port length.....100sqin of port on a 1cuft net box tuning to 28hz???

true, what box size and tuning? Yes it has been done, a L would be better if you could fit it. An aeroprt may be a better solution though.

 

[RAM_Designs 5,000+ posts]

I do 40"+ a lot...what are you looking for exactly?

 

[Louisiana_CRX 5,000+ posts]

20hz //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 

[jdawg 5,000+ posts]

20hz //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

If I wanted to tune 20hz it would be HT with an 18 or 15 and Im sure it would require a large enough box that I wouldnt need a 60" long port lol

 

[RAM_Designs 5,000+ posts]

I did a box for a single 10"er recently. 1.5ft^3 tuned to 28hz with a 10.5"x2" port...43" long I think. 20hz would have been 90". //content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif

 

[jdawg 5,000+ posts]

I did a box for a single 10"er recently. 1.5ft^3 tuned to 28hz with a 10.5"x2" port...43" long I think. 20hz would have been 90". //content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif

thats what I mean, honestly I would have done an aero for that

 

[RAM_Designs 5,000+ posts]

thats what I mean, honestly I would have done an aero for that

Stock aeros aren't long enough, and I don't feel like buying extra pipe...or spending the money in the first place, really.

 

[jdawg 5,000+ posts]

Stock aeros aren't long enough, and I don't feel like buying extra pipe...or spending the money in the first place, really.

alot of that depends on power also, they "golden rule" that everyone goes by here (on this forum) about so many cubes requires so much port is bullshit. Yea on large boxes with thousands of watts of power it may apply but really its power depending. No way a pyramid 18 with 500w of power needs a port area as large as a BTL on 2000w of power. More port area almost never hurts but in some cases its just total overkill and all you do is scratch your head and try to figure out how you can fit some huge *** port in a teeny box when it does not need it in the first place.

 

[Supergumby5000 5,000+ posts]

I did a box for a single 10"er recently. 1.5ft^3 tuned to 28hz with a 10.5"x2" port...43" long I think. 20hz would have been 90". //content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif

the difference between 43" and 60" is huge.....

 

[soldiermedic 10+ year member]

Wow..so many responses...yet so little help. Anyway, I am planning to do a box for a single 10" sub tuned to 26hz for a flat response from 30hz and up. Box size will be 1.75cu. Low pass will be set at 125hz. Also, I have a question as to whether winISD calculates displacement for the sub and port or do I have to do that myself.

 

[soldiermedic 10+ year member]

And what is an aeroport?

 

[CRXBMPN 5,000+ posts]

all you need to know is that an aeroport is not long enough lol

its just pvc with flared ends to reduce cancellation etc

 

[soldiermedic 10+ year member]

Why the hell do you need 60" of port length.....100sqin of port on a 1cuft net box tuning to 28hz???

Close...1.5cu at 26.