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Old 16th December 2009, 06:08 PM   #41
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Originally Posted by Charcoal View Post
even using one crossed over with some array of light weight cone woofers - could be greate design.
Like this?
This is a prototype with back loaded horn for the three 8" drivers, wave-guide for the AMT (smaller than the current) midrange/tweeter and 360 degree dispersion for the AMT super tweeter.

Measured in the room in the picture.
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Old 16th December 2009, 07:23 PM   #42
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interested re. horn... all 3 drivers loaded with horn? Can you show crosssection?

Last edited by Charcoal; 16th December 2009 at 07:31 PM.
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Old 21st August 2010, 08:08 PM   #43
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Beyma TPL150 now with horn
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Old 4th July 2011, 05:15 AM   #44
dheming is offline dheming  United States
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Any new developments on this?
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Old 4th July 2011, 07:33 AM   #45
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Any new developments on this?
Yes - but not "spoken of" here
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Old 4th July 2011, 09:49 AM   #46
webby is offline webby  United Kingdom
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Hi RayCtech,

Where can we find out more?
Another forum perhaps?
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Old 4th July 2011, 10:32 AM   #47
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Hi RayCtech,

Where can we find out more?
Another forum perhaps?
Nothing to be found..

When I have finished my "ultimate" speaker system with new and revised AMT drivers (I am building two sets) I may post some photos and measurements.
This is a three / four way system with a 200cm2 AMT supertweeter in a wave-guide, a 2000cm2 midrange(fullrange) AMT system in a wave-guide, and a 9000cm2 AMT sub system...
It is a dipol "floor to roof" system where the AMT sub system can be run as two independent systems for advanced room EQ.
In the first setup / evaluation I will use the digital crossover in Pure Music with 8 channels at 352.8k/384k@32bit.
The AMT supertweeter and AMT midrange are powered by 25 watt JFET class A amplifiers, and the two AMT sub systems (pr. channel) are powered by 75 watt JFET class T amplifiers.
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Old 4th July 2011, 11:05 AM   #48
pk is offline pk  Denmark
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Hi RayCtech,

Thanks a lot for the update! Please do post pictures/more info, when the speakers are done!

Have you considered having the AMT drivers for sale for the DIY community? I fully understand if selling complete speakers will have first priority, but that being said I am pretty certain that the DIY community would have a serious interest in such drivers - I would for sure! (I am currently using the Beyma TPL-150H AMT, and would love to have a 'giant' version of the this driver!)

I wish you good luck with the speakers!

Best regards
Peter
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Old 4th July 2011, 11:21 AM   #49
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Originally Posted by pk View Post
Hi RayCtech,

Thanks a lot for the update! Please do post pictures/more info, when the speakers are done!

Have you considered having the AMT drivers for sale for the DIY community? I fully understand if selling complete speakers will have first priority, but that being said I am pretty certain that the DIY community would have a serious interest in such drivers - I would for sure! (I am currently using the Beyma TPL-150H AMT, and would love to have a 'giant' version of the this driver!)

I wish you good luck with the speakers!

Best regards
Peter
I do not intend to sell any AMT drivers or complete AMT speaker systems (with one exception - I may sell one of the two sets I am building now as I would need another house to be able to use both :-D ).
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Old 4th July 2011, 01:54 PM   #50
pk is offline pk  Denmark
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Hi RayCtech,

Thanks for responding! In case you change your mind, then please let us know!

Best regards
Peter
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