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5th Order Bandpass

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Unknown Enemy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Unknown Enemy Quote  Post ReplyReply Direct Link To This Post Topic: 5th Order Bandpass
    Posted: 27 September 2009 at 6:50pm
Could anyone tell me what a 5th order bandpass looks like and how it works? Never heard of this before and quite interested in it. Smile
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Jake_Fielder View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jake_Fielder Quote  Post ReplyReply Direct Link To This Post Posted: 27 September 2009 at 10:04pm
I didnt know you could get one?
I posted some info i got of jsg in a thread in the newbie section with some quotes and pics etc...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jake_Fielder Quote  Post ReplyReply Direct Link To This Post Posted: 27 September 2009 at 10:05pm
http://www.forum.speakerplans.com/bandpass-designs-explained_topic15854_post153405.html
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Unknown Enemy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Unknown Enemy Quote  Post ReplyReply Direct Link To This Post Posted: 27 September 2009 at 10:30pm
Thanks for the link. Smile


I had a little look around the net and I think this is 5th order. Just did a quick draw on paint.


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jonminns View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jonminns Quote  Post ReplyReply Direct Link To This Post Posted: 27 September 2009 at 11:00pm
If it were as per that image, the cone would be firing straight into the top of the box??
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pfly View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pfly Quote  Post ReplyReply Direct Link To This Post Posted: 27 September 2009 at 11:22pm
Yeah and there would still be a really small sealed chamber on the other side of the cone, so it is exactly the same as any other 4th order design.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jake_Fielder Quote  Post ReplyReply Direct Link To This Post Posted: 28 September 2009 at 10:59am
Yeah, pretty sure thats forth order.
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jonminns View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jonminns Quote  Post ReplyReply Direct Link To This Post Posted: 28 September 2009 at 12:45pm
The land of make believe...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ibex Quote  Post ReplyReply Direct Link To This Post Posted: 29 September 2009 at 10:19am
These are real 5th order bandpass designs:
 
...and 7th order bandpass as well:
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adambomb View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote adambomb Quote  Post ReplyReply Direct Link To This Post Posted: 29 September 2009 at 11:27am
Originally posted by Ibex Ibex wrote:

These are real 5th order bandpass designs:
 
Both 4th order.
 
Originally posted by Ibex Ibex wrote:

...and 7th order bandpass as well:
 
6th order I believe.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pfly Quote  Post ReplyReply Direct Link To This Post Posted: 29 September 2009 at 12:00pm
Adam how about that shaped port thing in those 4th order cabs? I mean there is normal shelf port but the hole in the front baffle is different shaped. Could it be the fifth order?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mrchay Quote  Post ReplyReply Direct Link To This Post Posted: 29 September 2009 at 1:01pm
you can make that hole any shape you want.
the reason its that shape on the deathbox isnt clear to me - I have made them with round holes and square slots, seems to make sod all difference (except the area of the hole affects LF cutoff and chuffing)
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