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Punisher horn modeling... |
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Jay Lawless 
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Joined: 22 August 2005 Location: United States Status: Offline Points: 1702 |
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 Topic: Punisher horn modeling...Posted: 10 September 2005 at 10:38pm |
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I'm trying to do a model of the punisher on hornresp based on
where I'll be using them, but I have a problem. I'm having a bit of
trouble finding out the rearchamber size because the design layout im
going off of lacks all the info I need. my best guess is its VERY close
to 38 litres, is this right?
the layout im using is this one  |
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Previously known as NeverWinter
Background: Automotive, Live and Home Custom Design. mid/high level based design and feild experience. Bass specialist |
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tb_mike
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Joined: 01 October 2004 Location: New Zealand Status: Offline Points: 2744 |
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Posted: 10 September 2005 at 11:11pm |
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No need to guess. If you were really keen you could copy the shape of the sealed rear chamber into a free cad program like Qcad,and it will tell you the area. Or work it out. |
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Jay Lawless
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Joined: 22 August 2005 Location: United States Status: Offline Points: 1702 |
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Posted: 11 September 2005 at 12:53am |
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With working it out, 38.09 Litres is what I got, but I have a feeling
its closer to 36 or 37 litres. Qcad wont register on my computer for
some reason so I'll just have to go with what I worked out.
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Previously known as NeverWinter
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mykey
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Joined: 18 August 2005 Location: UK/Indonesia Status: Offline Points: 9680 |
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Posted: 11 September 2005 at 8:01am |
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its 34.5 ltr's give or take 1 ltr but dont forget to take away the volume for the driver checked it three times like the old "chippy" saying measure twice cut once |
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Jay Lawless
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Joined: 22 August 2005 Location: United States Status: Offline Points: 1702 |
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Posted: 11 September 2005 at 4:55pm |
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Thankyou very much and yes I know about the displacement. The only
problem is, actualy finding the exact displacement witch Ciare's home
site doesn't give
 .Haha that term I still hear around here sometimes. |
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Previously known as NeverWinter
Background: Automotive, Live and Home Custom Design. mid/high level based design and feild experience. Bass specialist |
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Jay Lawless
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Joined: 22 August 2005 Location: United States Status: Offline Points: 1702 |
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Posted: 11 September 2005 at 6:03pm |
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Does anyone know the Displacement volume for the Ciare 12.00 SW? I've
been looking for the past two hours and I havn't been able to come up
with anything
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Edited by NeverWinter |
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Previously known as NeverWinter
Background: Automotive, Live and Home Custom Design. mid/high level based design and feild experience. Bass specialist |
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Lyndon A
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Joined: 15 November 2004 Location: Bristol Status: Offline Points: 536 |
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Posted: 11 September 2005 at 6:22pm |
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Don't think they usually say.
Fill a bucket up with water, Wrap the Ciare in a good plastic bag, and dunk it in and see how much water was displaced. Just be careful 
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Jay Lawless
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Joined: 22 August 2005 Location: United States Status: Offline Points: 1702 |
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Posted: 11 September 2005 at 6:24pm |
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If only I could. I'm modeling before I build or buy anything so thats
not an option. If I DID have one, yes that would be my first move to
figure it out.
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Previously known as NeverWinter
Background: Automotive, Live and Home Custom Design. mid/high level based design and feild experience. Bass specialist |
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LunchieTey
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Joined: 06 February 2005 Location: Australia Status: Offline Points: 934 |
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Posted: 11 September 2005 at 7:30pm |
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That wouldn't be all that accurate. The air between the cone/basket assembly is not part of driver displacement. That would be fine for a sealed back mid but not an open frame driver(if you want it to be 100%) I've heard of people using 'foam peanuts' as you can move them around into tight spaces and then work out the volume of 'peanuts' you had to take out. Again this is hardly scientific... |
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Speaker addict
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Jay Lawless
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Joined: 22 August 2005 Location: United States Status: Offline Points: 1702 |
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Posted: 11 September 2005 at 7:44pm |
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Still, would'nt help much if i didn't have the driver with me in the first place.
I just now came across a german forum, and I think I find the displacement but I'm not sure. To what I found, I think its about 4.28 litres. Does that sound about right? |
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Previously known as NeverWinter
Background: Automotive, Live and Home Custom Design. mid/high level based design and feild experience. Bass specialist |
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tb_mike
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Posted: 11 September 2005 at 9:52pm |
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All I have to say is,consider how much a change in 50% of woofer displacement gives,almost no difference really. A 12" typically has 2Litres displacement yes? Inaudible differences!,so dont fret and carry on with the simulation with an approximation.
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Jay Lawless
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Posted: 11 September 2005 at 9:56pm |
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Well then, I guess that helps, Thankyou tb_mike
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Previously known as NeverWinter
Background: Automotive, Live and Home Custom Design. mid/high level based design and feild experience. Bass specialist |
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i didnt have to tell you that did i
