Klason & Strange, folded basshorn, acient design ? - Page 5

fatbattery · 1st April 2011, 02:02 PM

Thank you

PeterKr · 13th July 2011, 12:59 PM

Hello Ivo, I can the plans for the RT-3 to get from you?

Peter

Ivo · 22nd August 2011, 04:13 PM

Hello Peter,

Sorry for the very late reply, I was in the middle of moving from city to city. I have the files on a disk, which is still in a box somewhere. I will contact you when I have access to the files.

Ivo

whgeiger · 9th May 2013, 06:32 AM

The Klason Horn is intended to be operated as a single sub-woofer below 100 Hz. As such, the design could be scaled to match the superior performance of an 18" or 21" driver such as those made by Precision Devices (see attached PDFs).

Regards,
WHG

Ivo · 10th May 2013, 02:39 PM

Hello Bill, nice to see you again. We "met" on the old Cornu forum back in the day.

Which of the versions would you scale up? It seems that the newer version of the RT1 (the old familiar Klasonhorn as was known in Europe from the Klinger loudspeakerbook) had the most extended and linear response. But, with your expertise, which one would you choose?

Ivo · 10th May 2013, 04:28 PM

Here are some simulations of various version of the Klasonhorn. In simulations of the last two versions, RT2 and RT3, the part of the horn "under the cabinet" is excluded from the simulation. The reason given is that simulation without that last segment lines up better with known response measurements. I wonder why it would have worked in iteration RT1, but not in RT2 and RT3.

RT1

RT2

RT3

sonomanie · 10th May 2013, 04:52 PM

i found this in an old dutch book

whgeiger · 10th May 2013, 07:54 PM

Quote:

Originally Posted by Ivo

Hello Bill, nice to see you again. We "met" on the old Cornu forum back in the day.

Which of the versions would you scale up? It seems that the newer version of the RT1 (the old familiar Klasonhorn as was known in Europe from the Klinger loudspeakerbook) had the most extended and linear response. But, with your expertise, which one would you choose?

Hi Ivo,

As part of the scaling effort, I would try to use the space in the triangular foot to house the driver. Then bifurcate the passage from there into the body of the enclosure. A curved front panel, ala Ranger's Paragon, might contribute to the enclosures aesthetics as well.

Regards,

Bill

Cal Weldon · 10th May 2013, 07:56 PM

Bill, do you know whatever happened to Daniel's forum? I went looking a while back and could not find it. I remember you being very helpful to me all those years ago.

whgeiger · 10th May 2013, 08:48 PM

Quote:

Originally Posted by Cal Weldon

Bill, do you know whatever happened to Daniel's forum? I went looking a while back and could not find it. I remember you being very helpful to me all those years ago.

Hi Cal,

Cornu

Sans English version.

Regards,

Bill

22nd August 2011, 04:13 PM	#43
Ivo diyAudio Member Join Date: Jan 2005 Location: Amsterdam	Hello Peter, Sorry for the very late reply, I was in the middle of moving from city to city. I have the files on a disk, which is still in a box somewhere. I will contact you when I have access to the files. Ivo __________________ I sehs there is no stronger breastplate, than the heart that is undainted.

10th May 2013, 02:39 PM	#45
Ivo diyAudio Member Join Date: Jan 2005 Location: Amsterdam	Hello Bill, nice to see you again. We "met" on the old Cornu forum back in the day. Which of the versions would you scale up? It seems that the newer version of the RT1 (the old familiar Klasonhorn as was known in Europe from the Klinger loudspeakerbook) had the most extended and linear response. But, with your expertise, which one would you choose? __________________ I sehs there is no stronger breastplate, than the heart that is undainted.

10th May 2013, 04:28 PM	#46
Ivo diyAudio Member Join Date: Jan 2005 Location: Amsterdam	Here are some simulations of various version of the Klasonhorn. In simulations of the last two versions, RT2 and RT3, the part of the horn "under the cabinet" is excluded from the simulation. The reason given is that simulation without that last segment lines up better with known response measurements. I wonder why it would have worked in iteration RT1, but not in RT2 and RT3. RT1 RT2 RT3 __________________ I sehs there is no stronger breastplate, than the heart that is undainted.

10th May 2013, 07:56 PM	#49
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	Bill, do you know whatever happened to Daniel's forum? I went looking a while back and could not find it. I remember you being very helpful to me all those years ago. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

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1st April 2011, 02:02 PM	#41
fatbattery diyAudio Member Join Date: Apr 2010	Thank you

13th July 2011, 12:59 PM	#42
PeterKr diyAudio Member Join Date: Nov 2009	Hello Ivo, I can the plans for the RT-3 to get from you? Peter

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