ribbon bench racing

ultrachrome · 22nd April 2005, 12:29 AM

Looking for a ribbon for a three way dipole.

The new Fountek NeoPro5i v. AC G3. Basically same price but the Fountek is larger with all the features that go with that: greater sensitivity, bandwidth, etc.

Two issues of concern. The new Fountek series no longer uses a pure Al ribbon. Should I care? Also the Fountek has a bump at 10k. It's hard for my new-bile eyes to tell, but the AC G3 might have a smoother response. Do I get DIY points subtracted if I have to use a notch filter?

How to choose one over the other? Any advice? Didn't get much info from the Madisound forum.

They are going to be crossed over to an Audax PR170M0 midrange.

ABJensen · 22nd April 2005, 09:57 AM

As far as I can see they have made it oncorrigated,very good

Andre´ Jensen

audi100 · 22nd April 2005, 01:37 PM

hi there
the bohlender&graebner isostatic devices (neo 3/raw , neo8) are dipole designs, cheap enough for experimental use (90-130 bucks)
and assembled in a proper way they really sound good.
well not real ribbons and the effordet woodwork is a bit special but the
electrical part is easy to handle (4 ohms constant)
there is a dipole construction by the german distributor of b&g
http://www.audax-speaker.de/pro30d.htm
not really a beauty but i´ve seen another design with symetric shaped dipole-panel that really soundet great.

ultrachrome · 22nd April 2005, 03:04 PM

Thanks, but I'm kind of set on using a ribbon.

22nd April 2005, 12:29 AM	#1
ultrachrome diyAudio Member Join Date: Jan 2002 Location: Puget Sound	ribbon bench racing Looking for a ribbon for a three way dipole. The new Fountek NeoPro5i v. AC G3. Basically same price but the Fountek is larger with all the features that go with that: greater sensitivity, bandwidth, etc. Two issues of concern. The new Fountek series no longer uses a pure Al ribbon. Should I care? Also the Fountek has a bump at 10k. It's hard for my new-bile eyes to tell, but the AC G3 might have a smoother response. Do I get DIY points subtracted if I have to use a notch filter? How to choose one over the other? Any advice? Didn't get much info from the Madisound forum. They are going to be crossed over to an Audax PR170M0 midrange.

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22nd April 2005, 09:57 AM	#2
ABJensen diyAudio Member Join Date: Mar 2005 Location: copenhagen	As far as I can see they have made it oncorrigated,very good Andre´ Jensen

22nd April 2005, 01:37 PM	#3
audi100 diyAudio Member Join Date: Apr 2005 Location: Trier, germany	hi there the bohlender&graebner isostatic devices (neo 3/raw , neo8) are dipole designs, cheap enough for experimental use (90-130 bucks) and assembled in a proper way they really sound good. well not real ribbons and the effordet woodwork is a bit special but the electrical part is easy to handle (4 ohms constant) there is a dipole construction by the german distributor of b&g http://www.audax-speaker.de/pro30d.htm not really a beauty but i´ve seen another design with symetric shaped dipole-panel that really soundet great.

22nd April 2005, 03:04 PM	#4
ultrachrome diyAudio Member Join Date: Jan 2002 Location: Puget Sound	Thanks, but I'm kind of set on using a ribbon.

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