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6th order BP kick section
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lukam View Drop Down
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Joined: 15 April 2009
Location: Slovenia
Status: Offline
Points: 46 		Post Options Post Options   Thanks (0) Thanks(0)   Quote lukam Quote  Post ReplyReply Direct Link To This Post Posted: 17 February 2010 at 9:21am
Originally posted by FlipC FlipC wrote:


We assume that he wants to keep the size of the porn horn to its normal size and just use unused space.

I don't see why this couldn't work.
The correct driver is going to be key.  Estimate the amount of space you have and find the highest SPL driver that will work for the space.


Exactly!

I'm trying to make the boxes as small as possible and use the unused space. I know that the driver selection is going to be the key.

So what driver do you think would be the best? One with heavier or lighter cones. I'm afraid that the cone will break if its to weak (lighter cones). Maybee a rcf LF15n401 or MB15N351. The MB would be more efficient but dont know what will happen with the cone at higher volumes.

When I get the horns and driver I have some measurement gear and will measure everything.
I have already some P.audio SN-12b lying here.Wink
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mykey View Drop Down
Old Croc
Old Croc


Joined: 18 August 2005
Location: UK/Indonesia
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Points: 9680 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 17 February 2010 at 4:14am
Originally posted by tomschute tomschute wrote:

interesting project.Looks like you know what you're doing. Chances are you'll have to have a play with tuning even if you had exact volumes if your baseing your design purely on WinISD.Get yourself a suitable mic, RTAnalysis software and some white noise going on.I would say though that a band pass for kick seems a little odd if you have horn loaded everywhere else. How about a BPH aka HD15 section under the 12" section?
pink, white is for the Taliban

....gets coat and runs
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FlipC View Drop Down
Young Croc
Young Croc


Joined: 25 October 2007
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Points: 654 		Post Options Post Options   Thanks (0) Thanks(0)   Quote FlipC Quote  Post ReplyReply Direct Link To This Post Posted: 17 February 2010 at 3:16am
Definitely interesting.

>How about a BPH aka HD15 section under the 12" section?
We assume that he wants to keep the size of the porn horn to its normal size and just use unused space.

I don't see why this couldn't work.
The correct driver is going to be key.  Estimate the amount of space you have and find the highest SPL driver that will work for the space.

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tomschute View Drop Down
Old Croc
Old Croc


Joined: 15 May 2006
Location: Mid Wales
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Points: 1817 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tomschute Quote  Post ReplyReply Direct Link To This Post Posted: 16 February 2010 at 5:24pm
interesting project.

Looks like you know what you're doing. Chances are you'll have to have a play with tuning even if you had exact volumes if your baseing your design purely on WinISD.

Get yourself a suitable mic, RTAnalysis software and some white noise going on.

I would say though that a band pass for kick seems a little odd if you have horn loaded everywhere else. How about a BPH aka HD15 section under the 12" section?
Out to lunch... stableaudio@hotmail.co.uk
www.stableaudio.co.uk
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lukam View Drop Down
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Joined: 15 April 2009
Location: Slovenia
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Points: 46 		Post Options Post Options   Thanks (0) Thanks(0)   Quote lukam Quote  Post ReplyReply Direct Link To This Post Posted: 13 February 2010 at 9:18am
Hi!

I have been busy with some sketchup ideas. I'm trying to make a kick sectionin for the porn horn V2 in the box with a 15" 6th order bandpass.
There would be 2 ports one above the HF horn and one under the MF horn. The front and rear chamber would be seperate between the two horns. I was planing to place the tunings around 70 and 130hz the maximal volumes availible are around 25L for the hi tuning and 65L for the low tuning. The exact volumes I don't know because I don't have the porn yet. I'm gonna use drivers from RCF or B&C.  Would port turbolance affect the HF response since the port is above the horn? 
I know  designing a 6th order BP is not gonna be easy I dont have much experiance designing 6th order BP so any help would be appreciated.
I have simulated a bunch of drivers with winisd but I don't know what TS parameters to look for for a good 6th order BP.
The porns would go above LABhorns so a 90hz cut max. I could also built some USBs but I want to have things in one box and as compact as possible.

Here some images for better understanding







Edited by lukam - 13 February 2010 at 6:36pm
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