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  #1  
Old 09-08-2010, 03:22 PM
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Default 6th Order Bandpass Information

Im looking into changing the design of my truck up a little and would like some input. Originally I was going to run 6 SA-12s on 2 SAZ-3500s in a no wall setup. One of my friends who used to compete, Brian from Team BK, said I should try a 6th Order Bandpass with 8 12s. What do you guys think. He's pretty positive its going to get me up in the mid to high 50s on music. What are the pros and cons on BP designs? I have never really messed with them so I am unsure
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Old 09-08-2010, 03:28 PM
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Bandpasses have better flat response.
They are also more efficient.
I'm going to be doing one this winter.
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Old 09-08-2010, 03:33 PM
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do they usually get louder then a standard slot port enclosure?
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Old 09-08-2010, 03:41 PM
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There is alot of things that go out of wack with these designs . not all drivers work well in these designs and they are not very forgiving in the airspace chambers. there is some write ups on the net for design and what drivers are known to work well in the higher psi that they are in. If done well and thought out they can be 10db or more over standard designs. Tapped horns also can do the same things if done correctly and play extremely low below 20hz. good luck and let us know how it goes
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Old 09-08-2010, 03:45 PM
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i had a tapped horn but only played to 37hz well, but could take 27000 theoretical rms before reaching the 10mm xmax was loud and had a very flat response well into 80hz.

6th orders are a bit more difficult to do so do some reading on them, i havnt experimented with them but ive heard they can be really picky

i also did a dcr enclosure for a sa8 and it worked ok but the port was to small for it, and it got big quick if i changed it at all, but those can have very high output as well
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Old 09-08-2010, 03:49 PM
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Hopefully I will be happy with the 2 3500s on them..if not ill be upgrading to 2 4500s lol
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Old 01-28-2011, 05:19 PM
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bringing this back from the dead real quick.....in the 6th order, is the rear chamber tuned lower or the front? I cant remember
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Old 01-28-2011, 05:43 PM
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rear chamber is tuned one octave lower than front chamber

less port area also
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Old 01-28-2011, 05:49 PM
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i love my 6th order series tuned basnpass... be prepaird there veryyyyyy large boxes and the port area/ tuning isnt something ur gonna get 100% first shot.... useually ur looking at 3 x as much airspace in the frotn chamber compared to rear pending the 6th order u choice... ur looking at about a 8:1 ratio airspace to port area... and a 20:1 + port area to airsparce... also IE my rear chamber is tuned to 36hz and my fornts tuned to 76hz
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Old 01-28-2011, 05:59 PM
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What we are doing is a b-pillar wall with a center port. 8 12s firing into the port (4 on each side). Rear tuning is gonna be 28hz, front tuning 62. I have plenty of airspace so that isnt a big concern of mine. I was aware when I started playing with the idea of a 6th order I needed a ton of room lol
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