TH-18 Flat to 35hz! (Xoc1's design) - Page 47 - diyAudio
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Old 26th January 2012, 08:38 PM   #461
Djim is offline Djim  Netherlands
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Hi Martin,

Your optimised SS15 also gives very good results with an 270mm extender in combination with the RCF and Moncacor drivers.

Click the image to open in full size.
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Old 26th January 2012, 08:52 PM   #462
tb46 is offline tb46  United States
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Hi Djim,

How do you model this?

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Old 26th January 2012, 09:28 PM   #463
Djim is offline Djim  Netherlands
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Quote:
Originally Posted by tb46 View Post
How do you model this?
Hi Oliver,

I do it two ways and check the differences; one way is to stretch the concept like usual, and the other way is to use "TH1" in the "Input Parameter" page and recalculate the positions, that Neo Dan pointed out to me. The last one looses the capability to put a horn parameter between S2 and S4. It would be better if you use Akabak, but I hope David will increase the number of horn parameters. Besides, there are more important things you can't model.
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Old 26th January 2012, 09:30 PM   #464
tb46 is offline tb46  United States
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Hi Djim,

Thanks. Yes, this does call for AkAbak.

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Old 26th January 2012, 09:44 PM   #465
Djim is offline Djim  Netherlands
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Quote:
Originally Posted by tb46 View Post
Thanks. Yes, this does call for AkAbak.
Hi Oliver,

Let me put it this way, maybe its not optimised, but it does improve compression figures considerably and gives low freq. extension for the drivers mentioned in my earlier post. It's not tested with the 3015lf (as far as i know) but I think it will be less promising.

Last edited by Djim; 26th January 2012 at 09:48 PM.
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Old 27th January 2012, 01:33 AM   #466
Djim is offline Djim  Netherlands
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Hi Oliver,

To prevent confusion, my extender is based on the Xoc1 optimised SS15 with 12mm sheet of post#737 of the Single sheet TH challenge thread.
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Old 27th January 2012, 04:06 AM   #467
Djim is offline Djim  Netherlands
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Black is closest in volume.
Black and Grey line are Xoc1 optimised.
Green line is standard SS15 from JBell.

Click the image to open in full size.

Last edited by Djim; 27th January 2012 at 04:13 AM.
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Old 27th January 2012, 01:33 PM   #468
epa is offline epa  Netherlands
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Quote:
Originally Posted by tb46 View Post
Hi Djim,

Thanks. Yes, this does call for AkAbak.

Regards,
oftopic ,how does one run akabak under win7 x64?
i tryed compatebilety mode and dos envirement.
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Old 27th January 2012, 02:05 PM   #469
epa is offline epa  Netherlands
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nvm
i run it in a virtual machine ,xp.
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Old 27th January 2012, 02:08 PM   #470
tb46 is offline tb46  United States
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Hi epa,

I'm running Xp, and will as long as possible. Sorry, but no further help.

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