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How to build a sub that can go down to 20hz or even 15Hz??
How to build a sub that can go down to 20hz or even 15Hz??
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Old 6th December 2019, 07:07 AM   #21
David McBean is offline David McBean  Australia
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Quote:
Originally Posted by Circlomanen View Post
Here is the Hornresp input data if someone wants to play with this idea or make a drawing.
What I would really like to know is how you managed to get a value of 1.4908850 to appear in the disabled Fta text box. It should be 0,00 :-).
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Old 6th December 2019, 05:58 PM   #22
bjorno is offline bjorno  Sweden
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Default What is the Frame Diameter

Quote:
Originally Posted by bjorno View Post
Hi wonderfulaudio,All

You're correct.Without doing a Consistency Check and an educated guestimated calculation of Driver Sd and Xmax from a Ruler Measurement of the Driver Frame Width and the Rubber Surround Diameter) : The given Data could be way off and sculptured to impress any ignorant Layman.

So What is the Frame Diameter?

b
Hi audfrknaveen,All

No Help Posted hereinafter/above but my Fingers are crossed(Sd and x max is probably both stretched...) and continuing being back on Topic! Pictures may Help:

b
Attached Images
File Type: jpg Iwai_12inch-4Ohm_ZR-Plot.JPG (237.4 KB, 97 views)
File Type: jpg Iwai_12inch-4Ohm.JPG (834.8 KB, 95 views)
File Type: jpg 2x Iwai_12inch-4Ohm_xmax=12mm_T-TQWT.JPG (901.9 KB, 91 views)
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Old 6th December 2019, 06:19 PM   #23
bjorno is offline bjorno  Sweden
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Fwiw: Adding HR Input Text:

b
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File Type: txt Iwai_12inch-4Ohm.txt (1.1 KB, 5 views)
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Old 6th December 2019, 06:28 PM   #24
Discopete is offline Discopete  Canada
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Quote:
Originally Posted by audfrknaveen View Post
I saw this thread.

15HZ Sub (you can build in an hour)

But unfortunately the images are not opening. It's a very old thread. Anybody knows the design ??
Check out Rod Elliott's site #48 and 71...subwoofer control, etc.
sound-au.com


Looks like the link won't work. Just google Rod Elliott Sound and it will take you there.

Last edited by Discopete; 6th December 2019 at 06:31 PM.
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Old Yesterday, 09:25 AM   #25
Circlomanen is offline Circlomanen  Sweden
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Quote:
What I would really like to know is how you managed to get a value of 1.4908850 to appear in the disabled Fta text box. It should be 0,00
I don't know, but I suspect that running Hornresp in Proton (Steam windows compatibility layer) might be the cause.

Proton (compatibility layer) - Wikipedia

GitHub - ValveSoftware/Proton: Compatibility tool for Steam Play based on Wine and additional components
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Old Yesterday, 12:18 PM   #26
David McBean is offline David McBean  Australia
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Quote:
Originally Posted by Circlomanen View Post
I don't know, but I suspect that running Hornresp in Proton (Steam windows compatibility layer) might be the cause.
I guess that probably doesn't help things much... :-).

It is still quite weird though, how it managed to generate a value out of nothing, and use a period rather than a comma as the decimal separator :-).
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