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186 horn in Hornresp

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Wrighty View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wrighty Quote  Post ReplyReply Direct Link To This Post Topic: 186 horn in Hornresp
    Posted: 26 June 2007 at 8:00pm
Does anyone (Rog? ) have the parameters required to simulate the 186 horn in Hornresp? I'm trying to see what the implications would be of reducing the width of the cab by 100mm, but having never used Hornresp before, I'm not sure how to translate the plans into the required parameters.

Cheers,

Wrighty
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mstep77 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mstep77 Quote  Post ReplyReply Direct Link To This Post Posted: 01 July 2007 at 2:22pm
i think theres a lot of people who want to know this
 
This is my best guess
 
driver parameters on the net
 
I would say that put vtc as the vol of air in the driver cone area, because it fires directly into the throa, i reckon this is debatable though. ie about
8000cm3
ATC 5cm
rear chamber 40-50L
average cross section 20cm
 
s1 300
s2 900
s3 1700
s4 4600
 
if you want to reduce the width by 100mm multiply the above 4 numbers by by 5/6 as the cabinet width is 60cm
 
If you want to learn hornresp check out the sticky thread at the top of the HD15 forum as there are screenshots of the hd15's input parameters.
 
Hope this helps
 
Matt
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mstep77 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mstep77 Quote  Post ReplyReply Direct Link To This Post Posted: 01 July 2007 at 3:06pm
Forget to put the horn path lengths
double click the L parameters next to the s1,s2 etc to make them say con then enter the following lengths in cm, i modelled it in three sections hence three lengths
 
30cm
70cm
66cm
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Mark James View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark James Quote  Post ReplyReply Direct Link To This Post Posted: 01 July 2007 at 10:14pm
cheers mstep77 i just unwittingly worked out the answer to a few questions running round my head regarding horn response and general horn theory... ace
cheers
markk
me so horny me love you long throw
horn loaded for her pleasure
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Wrighty View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wrighty Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2007 at 12:19am
Matt,

Thanks for the info. I put the parameters in and I get a plot which looks something like the shape of the one on the plan but at a higher SPL, so I think there's something not right.

I'm starting to get the hang of how to use Hornresp now, so if I knew which bit was what when it comes to putting the data into it, I could work out the numbers myself.

Can anyone annotate the plan of a horn (eg. the 186 or 1850) showing which parts of the cab correspond with which figures in Hornresp?

Cheers,

Wrighty
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mstep77 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mstep77 Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2007 at 1:24am
rog has modelled it in half space ie the top left box you need to keep double clicking until it says 2.0 x Pi
 
can you post up all the parameters for the pd186, i can't find a couple of them on thier website, i'll then see if i can work out how its been modelled
 
matt
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mstep77 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mstep77 Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2007 at 1:45am
also atc 300
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Wrighty View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wrighty Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2007 at 9:54am
PD.186 parameters for Hornresp:

Sd = 1150
Cms = 1.88E-04
Mmd = 184.00
Re = 5.50
BL = 22.94
Rms = 4.05 (Hornresp calculates this if you double-click in the box)
Le = guessed at about 1.7mH as there's no published figure. My 186 drivers are at home and I'm at work so I can't measure right now unfortunately :(
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mstep77 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mstep77 Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2007 at 3:01pm
http://img525.imageshack.us/my.php?image=annotated186planwm6.png
 
red lines are s1, s2,s3, s4 and s5 respectively
blue lines are the horn section lengths
yellow is the throat chamber
 
This is different from what i posted above, can't work out how to do the screen shots on hornresp?
 
I still can't get it to look like rog's though.
 
matt
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mstep77 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mstep77 Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2007 at 3:05pm
come on wizards!
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Wrighty View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wrighty Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2007 at 3:48pm
Use the PrtScr button on your keyboard, which will put a screenshot on the Windows clipboard, which you can paste into your favourite image editor. From there you can crop it and save it as you wish :)
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mstep77 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mstep77 Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2007 at 4:13pm

http://img516.imageshack.us/img516/7995/hornrespfor186cl3.jpg

input data for the 186 horn
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