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Old 16th November 2010, 05:26 AM   #41
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Looks great! Thank you :-)
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Old 21st November 2010, 04:03 PM   #42
lolojr1 is offline lolojr1  United States
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im sure someone will know this immedately but i cant seem to understand what an offset horn is?

ive found this image im sure a few of you have seen and ive read the thread im sure its so simple but i just cant find it

Click the image to open in full size.

im trying to understand how to design a BLH but seem to hit a wall somewhere with all of the options
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Old 21st November 2010, 05:47 PM   #43
soho54 is offline soho54  United States
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Quote:
Originally Posted by lolojr1 View Post
im sure someone will know this immedately but i cant seem to understand what an offset horn is?
---
im trying to understand how to design a BLH but seem to hit a wall somewhere with all of the options
If the driver taps into the horn at the very beginning it is a standard horn. If it taps in anywhere else along the side it is an offset horn, as the driver is offset from the true throat.

The HR help file explains how to input a BLH pretty well. Where exactly do you fall of the wagon, so to speak?
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Old 24th November 2010, 03:01 AM   #44
soho54 is offline soho54  United States
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This is a small update.

I fixed the driver nominal size non-sorting error.
Added more of the Leach math to the right of the main inputs.
I also added some minor extra calculators, and a new driver data base parameter.
Attached Files
File Type: zip Easy Horn v8ca Excel.zip (37.2 KB, 335 views)
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Old 24th November 2010, 04:50 AM   #45
soho54 is offline soho54  United States
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Same file with the protection back on, for those with twitchy fingers.
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File Type: zip Easy Horn v8ca1 Excel.zip (37.2 KB, 504 views)
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Old 2nd December 2010, 11:06 PM   #46
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Default Thanks 1e6!

I was JUST sitting down with Marshall's book and his paper from 1979 to do a spreadsheet and here I find one far, far more detailed than what I had in mind!

Thanks so much for the good work. Saved me a lot of hackin...

-Greg
gregrichter.com

(Ga Tech class of 1984, lucky enough to study with Dr. Leach)
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Old 11th December 2010, 02:53 PM   #47
soho54 is offline soho54  United States
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Greg Richter, your welcome.
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Old 11th December 2010, 03:00 PM   #48
soho54 is offline soho54  United States
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I have been getting some questions about the AE drivers, and why there is no dimensional info on them.

It's because the info is a pain to get too, as it is not listed with the driver parameters themselves. I when back and added in the easy to find models info. I'll post a picture here, and add a zip file. You can either copy paste from the zip, or manually input them from the pic.

If anyone has the remaining missing parameters please feel free to post them here.

Click the image to open in full size.
Attached Files
File Type: zip AE1.zip (2.4 KB, 102 views)

Last edited by soho54; 11th December 2010 at 03:05 PM.
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Old 10th January 2012, 08:59 PM   #49
dumpguy is offline dumpguy  Germany
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Thanka a lot for this great work. Just useful for my start with first tapped horn sub.
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Old 30th June 2012, 06:26 PM   #50
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Default Some HR files

Hi, with the great help of Eazy Horn and Hornresp I calculated some tapped horns. B&C 15SW115, B&C15CL76 (cheap) and Beyma 15G300 8 (because it is laying around) - were tested. The HR files are attached. Interpretation is difficult for me. 15sw115 has already been used for TH and should be the best driver. But it's SPL curve gets ragged even below 200 hz. The Beyma is officially out for a TH, but I see a rather good response up to 400 hz.The boxes are huge ( over 1000 liters), they would be higher than 250 cm. Can someone help me interpret the HR files correctly ? Included is a textfile with some B&C drivers in the format for Eazy Horn, except the columns I did not understand. Some of them could be usable for a TH. To get a smaller box, I think about a 2 x 12" config. But the curves dont look smoother with multiple drives. Why ? Thanks !
Attached Files
File Type: txt BC15sw115x2c2.25.txt (424 Bytes, 29 views)
File Type: txt BC15cl76x2c2.25.txt (427 Bytes, 20 views)
File Type: txt bey15gc3.5.txt (417 Bytes, 12 views)
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