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» Termpro Audio Forum » Component Specific Topics » Subs and Enclosures » 4th or 6th order (Page 1)

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Author Topic: 4th or 6th order
Wanna-B-Basshead
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I'm rebuilding my street max van this winter... trying to decide the most efficent enclosure to build in it. I've got a general idea for 4th orders, but have no clue on 6th... how hard is a 6th order to build?

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Travis Atherton
Former Team Music Masters member
2005 World Finals – Street C
DAILY DRIVER: 2005 CHEVY SILVERADO 3500, CC LB W/8 MEMPHIS MOJO 15's RECONED WITH FI PARTS ON 1 CRUNCH GP3000
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AllNightLong
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6th order requires you to get each port and chamber exact to have the results that you would be looking for. I think that if you're gonna use the van just to burp then a 4th order would probably be best since it gets extremely loud at a very peaky frequency. If you can talk to Team NEO Eric he is awesome with explaining bandpass systems. I'm sure that Steve Mick or Eric Alexender could also explain bandpasses to you since they run them in their vans. There are a couple other guys here on the forum that seem to be pretty knowledgeble about them too. I like you van how it is now Travis, you don't need it any louder [Smile] Also try asking Greg Zoller, he has a bandpass in his blazer and is in the 170 range with a single 18.

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Wanna-B-Basshead
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it can always be louder... maybe ill just do a flat baffle, seems to work good

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Travis Atherton
Former Team Music Masters member
2005 World Finals – Street C
DAILY DRIVER: 2005 CHEVY SILVERADO 3500, CC LB W/8 MEMPHIS MOJO 15's RECONED WITH FI PARTS ON 1 CRUNCH GP3000
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D-Bass
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are you planning on running 4 subs? in the green van? what notes does it like?

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World Record-Loudest SPL in my driveway
Team Powermaster/XS-Power
Hifonics Amps, Kicker subs-The way it should be....all were Stolen from me...boo hoo
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Wanna-B-Basshead
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yes 4 subs. not sure about 15" or 18" yet... right now it plays about 59hz

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Travis Atherton
Former Team Music Masters member
2005 World Finals – Street C
DAILY DRIVER: 2005 CHEVY SILVERADO 3500, CC LB W/8 MEMPHIS MOJO 15's RECONED WITH FI PARTS ON 1 CRUNCH GP3000
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tekk45
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I know basic theory on bandpass operation, but i'm still learning through build and test, build,test,build,test,ect,ect,ect. Eric alexander is,IMO, one of the bandpass greats.

Team Neo - Eric

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AllNightLong
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quote:
Originally posted by tekk45:
I know basic theory on bandpass operation, but i'm still learning through build and test, build,test,build,test,ect,ect,ect. Eric alexander is,IMO, one of the bandpass greats.

Team Neo - Eric

You're being modest Eric. You are the most knowledgable person I have talked to about bandpass enclosures. They aren't all that common and that's why I think that most people don't know a whole lot about them. My first system was a bandpass enclosure. It actually sounded pretty damn good for some crap MTX woofers.

Travis, are you trying to play music out of the van? Or are you just keeping it to burp? I'd like to see you do 4 18's in it for Bassrace in 149.9 or 159.9 [Big Grin]

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Wanna-B-Basshead
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its a burp box, the truck is gonna do the 139.9 class.

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Travis Atherton
Former Team Music Masters member
2005 World Finals – Street C
DAILY DRIVER: 2005 CHEVY SILVERADO 3500, CC LB W/8 MEMPHIS MOJO 15's RECONED WITH FI PARTS ON 1 CRUNCH GP3000
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Old/School
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4th order

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Wanna-B-Basshead
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thats what i was thinking... lots of testing required

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Travis Atherton
Former Team Music Masters member
2005 World Finals – Street C
DAILY DRIVER: 2005 CHEVY SILVERADO 3500, CC LB W/8 MEMPHIS MOJO 15's RECONED WITH FI PARTS ON 1 CRUNCH GP3000
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tekk45
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Series tuned 6th order. Just my .02 cents.
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Wanna-B-Basshead
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quote:
Originally posted by tekk45:
Series tuned 6th order. Just my .02 cents.

ummm, what? you lost me on that one, can you explain master of the BP?

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Travis Atherton
Former Team Music Masters member
2005 World Finals – Street C
DAILY DRIVER: 2005 CHEVY SILVERADO 3500, CC LB W/8 MEMPHIS MOJO 15's RECONED WITH FI PARTS ON 1 CRUNCH GP3000
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E-40
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series tuned 6th order has the rear ported chamber firing into the front ported chamber rather than 2 different ported chambers firing into the cabin

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Team Baldman Creations
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Wanna-B-Basshead
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like Livewire-Eric's van?

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Travis Atherton
Former Team Music Masters member
2005 World Finals – Street C
DAILY DRIVER: 2005 CHEVY SILVERADO 3500, CC LB W/8 MEMPHIS MOJO 15's RECONED WITH FI PARTS ON 1 CRUNCH GP3000
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D-Bass
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yes. his van is series 6th order.

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World Record-Loudest SPL in my driveway
Team Powermaster/XS-Power
Hifonics Amps, Kicker subs-The way it should be....all were Stolen from me...boo hoo
Zensky....World Domination at It's Finest
www.zensky.com  -

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Wanna-B-Basshead
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so how do you build a 6th order? trial and error?

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Travis Atherton
Former Team Music Masters member
2005 World Finals – Street C
DAILY DRIVER: 2005 CHEVY SILVERADO 3500, CC LB W/8 MEMPHIS MOJO 15's RECONED WITH FI PARTS ON 1 CRUNCH GP3000
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tekk45
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Build and test and tune and repeat.
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MrCrowley
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Make sure the front chamber is BIG

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Wanna-B-Basshead
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is their a general rule to follow for a 6th? 4th I was told is about a 2:1 port to sealed...

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Travis Atherton
Former Team Music Masters member
2005 World Finals – Street C
DAILY DRIVER: 2005 CHEVY SILVERADO 3500, CC LB W/8 MEMPHIS MOJO 15's RECONED WITH FI PARTS ON 1 CRUNCH GP3000
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Wanna-B-Basshead
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nobody know how to make a 6th order?

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Travis Atherton
Former Team Music Masters member
2005 World Finals – Street C
DAILY DRIVER: 2005 CHEVY SILVERADO 3500, CC LB W/8 MEMPHIS MOJO 15's RECONED WITH FI PARTS ON 1 CRUNCH GP3000
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tommyk90
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quote:
Originally posted by Wanna-B-Basshead:
nobody know how to make a 6th order?

I would pm eric alexander. [Smile]

But from what I've seen/read, usually the enclosure the subs are in is a bit smaller than a normal ported box, tuned low, then the front chamber is much much larger than normal and tuned high.

It probably depends on if you want it musical or strictly for burps.

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Competition setup:10" DD 9510, kicker zx2500, ~ 2 cubes, 151.2 on the TL(in the kick, 43 hz), 145.0 legal.

"10 inches of terror"

Team Phat HertZ
Team Kicker

2008 Bassrace 130-139.9 Regional and National Champion


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MrCrowley
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Eric's van had a huge front chamber for a 6th order. I don't know of any ratios except just test and test. Do NOT tune the outer chamber and the inner chamber to the same frequency. You'll get cancellation out the ass, especially if it's going to be a parallel tuned BP. I think a series tuned 6th order (ported box inside a ported box)would be easier to design and test with.

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http://s1.bitefight.org/c.php?uid=175990

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Raymond W. Smith
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has any one ever seen a 6th order seris tuned in a trunk car? I was thinking of building one in my car but need some help I was thinking about two 12's and two mojo 4kw's

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tommyk90
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quote:
Originally posted by Raymond W. Smith:
has any one ever seen a 6th order seris tuned in a trunk car? I was thinking of building one in my car but need some help I was thinking about two 12's and two mojo 4kw's

A properly sized 6th order for 2 12's is most likely going to be far too large to fit in a trunk car.

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Competition setup:10" DD 9510, kicker zx2500, ~ 2 cubes, 151.2 on the TL(in the kick, 43 hz), 145.0 legal.

"10 inches of terror"

Team Phat HertZ
Team Kicker

2008 Bassrace 130-139.9 Regional and National Champion


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