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Old 27th April 2004, 05:10 AM   #11
pekka is offline pekka  Finland
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Default Any relation?

German loudspeaker DIY magazine Hobby Hifi 4/2001.

Regards,
Pekka U.
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Old 27th April 2004, 06:36 AM   #12
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Quote:
Originally posted by RAW
This driver I first built in a small ported cabinet and had them at my last DIY in Nov .Well Mr Fullrange (Dave Dlugos) had never heard of them before at all.
VIFA hides them by calling them midranges.

dave
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Old 27th April 2004, 01:30 PM   #13
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I thought it was a TG.
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Old 27th April 2004, 03:19 PM   #14
RAW is offline RAW  Canada
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Yes many designs using it.
The line I did was a little different as was a treatment to the drivers,filter.

This artical gave me the ideas to play around with the Vifa.
As i had done about all i could do with TB till a new driver comes out.

Al
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Old 27th April 2004, 05:29 PM   #15
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Default what did you do to it???

Just curious... can you tell me what you did to the stock driver??

was it just eletrical mods.. i.e. filters, or some physical modification?

Thanks!!!!
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Old 27th April 2004, 05:55 PM   #16
RAW is offline RAW  Canada
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Both.
To the underside of the driver?
And a modified filter.

The finished modle took some time to get the coatings correct.
But I am very happy with the results.

Daves ported ones he picked up from my DIY were untreated.
I have been playing around with driver coating for a few years now.I did the first round of tests with kids at my school and we built 1.5 using the NSB drivers from PE.
Darren was kind enough to supply a case of 32 so I really go a idea of what product to use and were.
I could have used another case as they were such a hit with the kids.
Staff were all floored at the out put of them in a 1/2" MDF cabinet.
Cheap as possible.Click the image to open in full size.
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Old 27th April 2004, 06:16 PM   #17
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Default Hobby HiFi

Guessing at internal dimensions, the 70 cm Hobby HiFi design looks very close to the dimensions that you would get if you plugged the Vifa driver into MJK's Classic TL tables with an Sl/So of .1

My results are attached.

I like the folding.
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Old 30th April 2004, 03:03 AM   #18
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Sort of interesting that this thread faded away without comment. This driver seems to have some unique characteristics that are probably of greater interst to hobbiest than marketers.

My own jerk reflex would probably be to lean toward Fostex offerings but it is hard to believe that no one out sawdust and solder land has tried to get the best out of this driver.
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Old 30th April 2004, 05:41 AM   #19
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What were the cost of the drivers?

and what modification did you make exactly? Or do you want to keep that a secret.

Thanks
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