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Old 3rd April 2011, 06:21 PM   #31
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Quote:
Originally Posted by fatbattery View Post
Just checked out the audio nirvanas. The 15 inch alnico is 92 and the normal is 96. thats insane. Paying double for a weaker magnet. Why don't they make a goto style neo instead
Hi,
I see the Super15CF as very suited to a small tube amp and the Super15Alnico proper to a small SolidState amp, as the integrated Bryston B60, B100 or similar.
As is know the sound of Alnico magnets are awesome, the best; unfortunately the Alnico price increased due the hi demand of cobalt in this atomic era, the military weapons and Electric energy companies buy all conalt in the market and the price took off.

Seems Nirvana will release a entire line of Neodimium magnets fullranges.
Click the image to open in full size.
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Last edited by FullRangeMan; 3rd April 2011 at 06:33 PM.
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Old 3rd April 2011, 11:36 PM   #32
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Nice to see these specs. Any chance you've got the sheet for the 12" neos?
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Old 4th April 2011, 12:41 AM   #33
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Alnicos are the best for guitar speakers because the compress nicely and become saturated. I'm not so sure they are consistently the best for high end audio, but I'm happy to listen if anyone has an argument for them. I replaced the alnico Super 12s that came stock in my Wharfedale SFB/3s with Eminence Alphas, and plan to refoam the alnicos and use them in a guitar cabinet, but if I'm convinced they'll sound better in the open baffles than the Emis I'd put them back in.
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Old 4th April 2011, 12:48 AM   #34
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cool love neos
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Old 4th April 2011, 02:07 AM   #35
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Why is it that you love neos? New to the discussion of magnet types...
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Old 4th April 2011, 05:56 PM   #36
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Originally Posted by roscoeiii View Post
Nice to see these specs. Any chance you've got the sheet for the 12" neos?
I do not had the Super12-Neo datasheet, sorry. But David surely may have it.
This Super15-Neo datasheet David send me may be preliminary.
The Alnico sound are special to me, due the harmonics it give to the music, more irresistible than a tube amp.
Gustavo
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Old 4th April 2011, 06:27 PM   #37
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Quote:
Originally Posted by FullRangeMan View Post
I do not had the Super12-Neo datasheet, sorry. But David surely may have it.
This Super15-Neo datasheet David send me may be preliminary.
The Alnico sound are special to me, due the harmonics it give to the music, more irresistible than a tube amp.
Gustavo
Interesting.
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Old 4th April 2011, 07:09 PM   #38
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I have just one pair of alnico driver, the tiny coral full rangers. They measured very flat from 200 Hz right up to 10k, almost ruler flat. They sound very lifelike.

Looking at the published graphs for AN drivers with alnico magnets, the impedance doesn't rise, like in the case of ceramic magnets.

Haven't heard neodyium magnets yet. Neodyium magnets are smaller and lighter, don't know what else they are known for.
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Old 4th April 2011, 07:20 PM   #39
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How the magnets are used in the motor design is more important than the magnets themselves. Neo & Alnico usually allow the packing of more "juice" into the gap. That the AN AlNiCos are significantly less efficient instead of more sets off alarm bells.

And, at least in the 8", the drivers T/S are dramatically different between the 3 so any direct comparison is out the window.

dave
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Old 4th April 2011, 07:30 PM   #40
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Quote:
Originally Posted by ra7 View Post
I have just one pair of alnico driver, the tiny coral full rangers. They measured very flat from 200 Hz right up to 10k, almost ruler flat. They sound very lifelike.

Looking at the published graphs for AN drivers with alnico magnets, the impedance doesn't rise, like in the case of ceramic magnets.

Haven't heard neodyium magnets yet. Neodyium magnets are smaller and lighter, don't know what else they are known for.
Hi,
In my experience with pro-audio Neos they are know to have a strong peaky response in the mid and treble.

The Alnicos FR need a special, different FR project than Ferrite/Neo drivers.
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