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Database simulation
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Tiaguito View Drop Down
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Joined: 18 October 2011
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Points: 5 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tiaguito Quote  Post ReplyReply Direct Link To This Post Posted: 07 December 2012 at 12:09am
Originally posted by bitzo bitzo wrote:

1850 horn

s1=480
s2=6000
exp=210
vrc=54.50
lrc=36
fr=0
tal=0
vtc=2340
atc=1150

posted by kpippen http://www.speakerplans.com/forum/forum_posts.asp?TID=11248&PN=2


Sorry, but this data does not match the plan HD1850
because the dimensions of the HD1850 are 63.6 x 75 x 95.6 (http://www.speakerplans.com/index.php?id=1850horn) = 456.012 liters. if the simulation of 520.257?? Confused

Look:


A User said that the length of the horn HD1850 is approximately 170cm
And the largest area, not 6000cm2. the largest area of hd1850 is approximately 4620cm2
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Originally posted by Tiaguito Tiaguito wrote:



Sorry, but this data does not match the plan HD1850
because the dimensions of the HD1850 are 63.6 x 75 x 95.6 (http://www.speakerplans.com/index.php?id=1850horn) = 456.012 liters. if the simulation of 520.257?? Confused


The extra volume probably comes from the space in front of the speaker that the horn uses as extra horn length.
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ovidias View Drop Down
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Points: 32 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ovidias Quote  Post ReplyReply Direct Link To This Post Posted: 10 April 2013 at 12:31pm

How about this project http://hornplans.free.fr/mtl-46.pdf

I have calculate the data input
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Points: 127 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SebP Quote  Post ReplyReply Direct Link To This Post Posted: 11 April 2013 at 3:54am
Real measurement of MTL-46. I don't think it is the real SPL at 1w/1m. Curve looks like more the one in PDF than your sim
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Points: 32 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ovidias Quote  Post ReplyReply Direct Link To This Post Posted: 11 April 2013 at 8:18am
It depends what driver do you use, with original driver the plot is more flat
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Points: 32 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ovidias Quote  Post ReplyReply Direct Link To This Post Posted: 11 April 2013 at 9:02am

simulation with RCF LF18G401

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It's my measure ! SPL isn't calibrate.
In your input data you've forget the first part of path between throat and your S1.
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Points: 29 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Avatron Quote  Post ReplyReply Direct Link To This Post Posted: 04 June 2013 at 3:33pm
Can somebody help me with my simulation, please?

I believe there is an error somewhere because of the cone excursion.
In the picture below xmax is simulated with 900 Watt.
But it also reaches xmax with 200 Watt simulated.

Input data:


Respone half usb


gettin a warning, when i try to sim more than 3 speakers


response 6 half usb (3 full usb)


MaxSPL (3 full usb)


Diaphragm displacement


thx in advance
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Points: 29 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Avatron Quote  Post ReplyReply Direct Link To This Post Posted: 17 June 2013 at 8:29pm
Addon:

I also simulated USB + Celestion ftr18 4080hd, and it was the same thing.
Max excursion at 100 watt! 

How can this be? There must be an error in the input data, but i dont get it!

Would be nice if somebody could help me!


thx
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Points: 541 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DiscernAudio Quote  Post ReplyReply Direct Link To This Post Posted: 17 June 2013 at 9:38pm
I doubt this will help your problem , but for the LF18G401, Mmd should be 160.11

Originally posted by Avatron Avatron wrote:

Addon:

I also simulated USB + Celestion ftr18 4080hd, and it was the same thing.
Max excursion at 100 watt! 

How can this be? There must be an error in the input data, but i dont get it!

Would be nice if somebody could help me!


thx
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es18
 
s1=800.88
s2=987.00
con=12.68
s3=1359.24
con=27.69
s4=3575.76
con=37.12
 
vrc=79.91
lrc=54.69
vtc=51330.00
atc=2915.00
 
half usb 18
 
s1= 825.60
s2=877.2
con=13.00
s3=1210.00
con=20.50
s4=2770.00
con=33.50

vrc=46.50
lrc=22.70
vtc=31205.00
atc=2100.00
 
hope this info helps....


Edited by bee - 17 June 2013 at 10:40pm
https://www.elements-audio.com
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Points: 29 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Avatron Quote  Post ReplyReply Direct Link To This Post Posted: 20 June 2013 at 9:14pm
I checked the input data, but it is already correct in hornresp.
Dont get it how this thing with the excursion can be.
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