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In the Forum: Audio Discussions
In the Thread: RMAF 2008 observations, opinions 1) ceramic drivers
Post Subject: Minimalism, Zen and NaturefluxPosted by el`Ol on: 10/19/2008
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 Romy the Cat wrote:

The whole point that higher flux in the gap is beneficiary ONLY of high frequency extreme (HF) and the very same higher flux very much reflects negatively for opposite frequency extreme or even at mid range as it overtrump the suspension at lower end. So, before to go into extremes and trying to convince yourself as damp on others Permendur spiel I think it would be reasonable to question the justification of Permendur use. I did not see from you or anybody else any comments about the sonic objectives that Feastrex was trying to accomplish or had already accomplished by use of Permendur. Would Feastrex be the same if the use M3 steal? Oh, but no one will be able to write that 2342 Japanese machinists committed suicides while they worked with Permendur. I hope you undusted what I am coming from…



Hello Romy!

Natureflux is also something I don´t understand. While I was planning an FAL clone I tried different shapes of pole pieces. I stumbled across triangular pole pieces Jim Thiel uses
http://www.thielaudio.com/THIEL_Site05/PDF_files/PDF_product_lit/CS3_7literature_high.pdf
and found that very much the sharp kinking in the field gives a higher and constant flux around the air gap:
http://img340.imageshack.us/img340/9600/thiellikevo3.jpg
http://img141.imageshack.us/img141/1504/quereo6.jpg
In a streight magnetic circuit the field was rather "running into the iron" and using permendur further reduced the flux around the gap. Maybe Japanese highend is often rather Zen philosophy than engineering: Use as few, simple and as expensive components as possible.
I think one has to see the 40K in conjunction with bowls for tea ceremony in the same price league. Concerning valve amps this philosophy has become mainstream around the world. Engineers from the times before the transistor came up wouldn´t have understood that the most expensive amps get along with that few valves today.

Regards,
Oliver

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