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Old 11th November 2011, 10:38 PM   #11
Zero D is offline Zero D  United Kingdom
diyAudio Member
Join Date: Aug 2009
Originally Posted tb46

You found some interesting graphs that I normally don't use, and you may want to ask David McBean about them.
I will

For displacement I look at the Diaphragm Displacement window (after clicking on Calculate) after setting the input power under Eg (double-click Eg).
On doing that it looks fine, but using the graphs i did, not very I'm hoping DB will clarify where i'm probaly going wrong

For limits I look at the Maximum SPL Tool from the SPL Response window. E.g.: set Maximum driver input power in watts to: 1500, and Maximum diaphragm displacement in mm to: 12.5.
Doing that i get limited to 100W @ Xmax ?

I'll post back after i hopefully get to the bottom of it


@ j.michael droke

Hi, Thanks for your info Hopefully my above post explains more about the issues i'm experiencing.

@ Xoc1

I agree it's quite "compact" Thanks for the heads up

@ bjorno

Good suggestion, Thanks
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Old 12th November 2011, 03:30 AM   #12
j.michael droke is offline j.michael droke  United States
diyAudio Member
Join Date: Jan 2009
Hi there ZD: I ran your input data through HR and found the following results:
input Fane 18500 Fs=36, Re=5.4, Qt=0.31, Qm=10.17, Qe=0.31, Vas=151.06L and:
at 21hz, 123.7db, 12.2mm disp., 58v and 130.6db 26hz to 83hz +3.6db -2.0db..comment:
(reasonably close to your HR) (not flat at +3.6 -2.0) and:
a filter cutoff needed protecting the Fane from exceeding 12.7mm displ. below21hz
I do not see that you are in error for HR, however others here have commented on the size and applicability to fit the Fane in to the folds....regards, Michael
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Old 12th November 2011, 03:31 PM   #13
tb46 is offline tb46  United States
diyAudio Member
Join Date: Jan 2006
Location: Texas
Hi Zero D,

This is a follow-up to my above Posts #3 and #7, as well as to the questions you asked in the Hornresp thread, Post #2444: Hornresp

Hope this helps.

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File Type: jpg FANE_Colossus_TH_E_I_R_P.jpg (22.2 KB, 63 views)
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Old 12th November 2011, 11:05 PM   #14
Zero D is offline Zero D  United Kingdom
diyAudio Member
Join Date: Aug 2009
@ j.michael droke

Hi, thanks for the info

@ tb46

Thanks I'll study it.
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