Beyma 8AG/N horn or "the Viech" - Page 11 - diyAudio
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Old 20th April 2012, 12:02 PM   #101
joern is offline joern  Europe
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Join Date: Feb 2008
Hi all


in the meanwhile some guy found other drivers, that work pretts well in the "Vieh":

Sica 1100 avaible from
Sica Breitbandlautsprecher LP208.38/1100 8 Ohm

and
Gradient AX8
avaible also via spectrum or Home | Lautsprecher Intertechnik

here ist a long thread an Sica in Viech (use a translater for your language)
Viech-Modding mit Sica Chassis und jede Menge OT, Lautsprecher - HIFI-FORUM

and here a link to a shoot-out meeting:
Viech-Treffen 2009
The Gradient driver was't avaible in that time.

Have fun on fullrange !
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Regards
Jörn
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Old 20th April 2012, 06:02 PM   #102
bubuxxl is offline bubuxxl  Portugal
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Wow, as a matter of fact. I´ve been eyeballing the Gradient for some time now!
But never knew how it would behave in the viech box...
Needs dome tweaking from looking at the frequency charts, or not at all?
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Old 21st April 2012, 06:02 AM   #103
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Keep in mind that a number of these drivers are deeper than the original, rather slender Beyma. So, in some cases you'll have to add a panel to the front of the Viech to allow for more depth. If you use a panel of nice wood, then this may even look good!

FYI, regarding damping the Viech, we used Cyburgs recommendation: only a roll of damping material just below the driver. That worked pretty well, it filtered the high tones well.

In general, as you notice from the shootout: the Viech design is quite forgiving for other drivers, so I would recommend looking at speakers that interest you for perhaps a very different project, and initially just add them to the Viech.
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Old 22nd April 2012, 12:08 PM   #104
bubuxxl is offline bubuxxl  Portugal
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I have already added a panel to give the driver a lot more space to breathe and midbass improved a lot.

And I only have a roll of damping just below the driver as well.

I have huge acoustic problems with tremendous bass null in my listening position.
I may save the loudspeakers for when moving to a room that gathers better acoustical conditions or I may just sell them...

When listening to well recorded material, they sound pretty good, when bass is poorly recorded, they just spit in your face, they just don´t like it and sound terrible. It´s the same with lean recordings or with heavy midbass.
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Old 10th August 2012, 12:38 PM   #105
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Good morning, I am your regular reader.
sending pictures of my speakers, which I designed with bayma 8AG / N.
submitted to contest "T-Forum Rome"
This Hi-Fi magazine Costruie HI-FI Prof.Ing. Marzullo Pierluigi
Their sound is much better than the horn or "the Viech"
They played even with tk2050
Their sound is a miracle



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Old 11th August 2012, 05:07 AM   #106
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Gigi, can you post plans?
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Old 11th August 2012, 07:27 AM   #107
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Quote:
Originally Posted by talaerts View Post
Gigi, can you post plans?
certamente.
certainly.
but the designs are not completed
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Old 11th August 2012, 07:36 AM   #108
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Quote:
Originally Posted by talaerts View Post
Gigi, can you post plans?
certainly.
but the designs are not complete
other photos
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Old 11th August 2012, 01:56 PM   #109
bubuxxl is offline bubuxxl  Portugal
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Nice work Gigi! I must say, those look the part! I gave up on the viech project due to the acoustical properties of my living room and from that day on, the beyma drivers have been collecting dust unfortunately.

And these look just what I was looking for, the beymas sound too good for what they cost and don´t want to give up on them. I bought a pair of Cambridge s30´s to live with, and even though I really love them, they just can´t match the beyma´s magical sound (fullrange coherence).

You should open a new thread regarding this project. What tweeter did you use?
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Old 12th August 2012, 06:05 AM   #110
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Quote:
Originally Posted by bubuxxl View Post
You should open a new thread regarding this project. What tweeter did you use?
designs will have to complete
The tweeter KDT-60, Centro Hi-Fi Elettronica - Tweeter GBC KDT-60
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