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Old 21st April 2004, 04:26 PM   #1
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Default Visaton B200 questions

From what I can gather Bob's going to bail on the Visaton OB build. Dave's got a nice setup going but after (an attempt at) reading the recommended build on the Visaton site I'm having trouble visualizing the baffle using the B200 and the BSG40. Can someone help my feeble mind?
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Old 21st April 2004, 05:36 PM   #2
joensd is offline joensd  Germany
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Usually the newest Visaton designs are published in the Visaton-forum.
I think it still isnīt because exactly that design with the B200 and BS40 was published in the "Klang+Ton"-magazine.
You can have a look here in the forum but you will only see the xover.
I can drop you a note when itīs published as I was also looking into the design. If itīs urgent drop me mail.
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Old 21st April 2004, 05:52 PM   #3
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"A picture is worth a thousand words."

Thanks joensd, that's exactly what I needed. I got confused in the translation on how the side wings were done. It's hard to believe that an 8" driver doesn't need a helper tweeter. How are the highs?
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Old 21st April 2004, 06:20 PM   #4
joensd is offline joensd  Germany
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Quote:
How are the highs?
I havenīt build it but the fr shows quite a few resonances and a SPL-loss from 15k on.
Have a look at the B200 on itīs own in the SOLO100 .
Basically only the low frquency part in the fr of the B200/BGS40-combination looks different.
Strange that the Solo100 appears to play even deeper.
Hereīs another combo with the B200.

BTW: I decided for a Gradient W160AL8 also a fullrange driver but at a fifth of the price. It shows similar fr, can go as deep but the resonances are bit heavier. Will see/hear on the weekend.
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Old 21st April 2004, 07:40 PM   #5
CSS/XBL is offline CSS/XBL  Canada
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I have all the parts to build the B200/BGS40 open baffle but haven't had time to do so. Anyone interested?

Bob
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Old 21st April 2004, 11:33 PM   #6
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I'm just stirring up trouble. I've been mulling over an OB design for some time and still undecided. That looks like a great set up but I'm gonna have to wait. Somebody should do it. I'd love to hear the results.
BTW, what's the efficiency of the system?
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Old 22nd April 2004, 07:44 AM   #7
Rudolf is offline Rudolf  Germany
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Default @ joensd

Quote:
I decided for a Gradient W160AL8 also a fullrange driver but at a fifth of the price. It shows similar fr, can go as deep but the resonances are bit heavier. Will see/hear on the weekend.
Youīre not putting it on an OB, arenīt you? Otherwise I would be strongly interested in your results.

BTW: I have been too busy @work to answer your last email properly. Still interested in the 1"-dia aluminium tube?
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Old 22nd April 2004, 05:34 PM   #8
joensd is offline joensd  Germany
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Quote:
Youīre not putting it on an OB, arenīt you? Otherwise I would be strongly interested in your results.
Hi Rudolf,
I wonīt be using it OB, was just mentioning the interesting driver as it sounded that Tim was on a search for interesting projects/drivers.

Will drop you a mail about the rest.

Regards
Jens
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Old 23rd April 2004, 04:17 PM   #9
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Quote:
the fr shows quite a few resonances and a SPL-loss from 15k on
A fascinating aspect of psycho-acoustics is that while it's possible to build a driver with completely flat response most are not done that way as they are considered "uninteresting". The real challenge is to make a driver that distorts at the right time at the right frequency.
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Old 24th May 2004, 03:31 PM   #10
Elias is offline Elias  Finland
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A fascinating aspect of psycho-acoustics is that while it's possible to build a driver with completely flat response most are not done that way as they are considered "uninteresting". The real challenge is to make a driver that distorts at the right time at the right frequency.
Hi there!

This sounds more like superstition than science. Can you clarify what do you think is the desired resonance performance of a driver at high freqs? I believe all kind of stored energy in a driver, i.e. a resonance, which causes ringing in time domain can not be good.

- Elias
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