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  #1  
Old 07-31-2009, 10:44 PM
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Default 4th order/slot port help

I am doing a build for 4 15's AA chaos each are rated for 800rms gonna give them 1k daily on a RD D9. I am doing a blowthrough and either a 4th order bandpass or slot ported. The one that will perform the best for daily and good on music i want. I am used to a box ported tuned to 32-33hz. I like a box that can play like a ported box at that tunning does. Listen to rap and want a nice low tuned box for daily music lows.

heres the dimensions any help is appreciated.
20" highx48" widex55-57" long those are external measurements. Want to do either double 3/4mdf or one layer of 1" mdf and bracing the inside really good.
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Old 07-31-2009, 11:28 PM
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4th order tuning doesn't really work like that.
Yes it will work great for your application but the tuning is set at the middle or high end of the frequencies you wish to reproduce as opposed to normal ported enclosure where the tuning represent the bottom end of the enclosure.

For your application, I reccomend a three chamber box;
one 6cu ft front chamber and two 3.5 cuft rear chambers
Tuned to 50hz, this should sound awesome on anything and will make your rap songs sing to your senses..(good vibrations)


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Old 07-31-2009, 11:31 PM
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meh

Last edited by iamsonic; 08-01-2009 at 08:28 PM.
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Old 07-31-2009, 11:32 PM
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What exactly is a 3 chamber box? any pics to help me see what you are talking bout.

Also what will perform best for daily ported or bandpass. Another guy designed this box for me? what do you think

http://img41.imageshack.us/img41/1207/4aachaos15bp.png
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Old 07-31-2009, 11:36 PM
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Quote:
Originally Posted by king ranch View Post
What exactly is a 3 chamber box? any pics to help me see what you are talking bout.

Also what will perform best for daily ported or bandpass. Another guy designed this box for me? what do you think

http://img41.imageshack.us/img41/1207/4aachaos15bp.png
I do not like his box design.

It would work but not as well as the three chamber 4th order will.

The reason I suggest the V is because long skinny chambers tend to not work well. The closer to cubical enclosures you get, the better the whole enclosure will work.
__________________
Box designs for $35.
My 'business' name is BBS (it means Built By Sonic)
I'm in Waterloo Iowa.
I do box designs for $35 paid before hand.
Most designs are done within 2 days.

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Old 07-31-2009, 11:50 PM
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pmed u back
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Old 08-01-2009, 05:59 PM
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anyone else wanna post some help?
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Old 08-01-2009, 08:28 PM
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For anyone assessing the design:
Just add the rear chambers together and use the combined volume for any program that doesn't do tri-chamber.

Last edited by iamsonic; 08-03-2009 at 06:33 AM.
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Old 08-01-2009, 08:49 PM
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anyone think that is a good design?
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Old 08-01-2009, 08:57 PM
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I don't
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