PR> >a way to deploy a diamond coating on things which would increase the 
speak
  > >efficiency a lot (imagine... diamond-hard cones. Btw, more clarity than 
ev
PR> DH> Question:  I know that diamond has a very high hardness.  It is very
  > DH> good for cutting things.  I also know that a diamond is very brittle.
  > DH> The way a jewelry diamond is made is by chipping off parts until it
  > DH> has the cut desired ( it does this along plains of crystallization so
  > DH> you get nice regular facets )
PR> DH> I would imagine that a speaker cone with a diamond coating would
  > DH> fracture the first time you applied a signal to it...
PR>Actually I don't understand why they want to use diamonds on a speaker
  >cone, but I'm familiar with diamond coatings.  We're talking a very thin
  >coating here, and very strong.  Why diamond, I'll never know.  Whatever
  >happened to the idea of making cones from polyimid?
That was my question as well...  There are some off-the-wall "hi-fi"
marketing scams out there and I figured that this was one of them...
I am well aware of the thin diamond coatings - fantastic stuff for low
wear, high heat transmission ( a diamond is an incredible conductor of
heat ) and abrasion resistance.  Not good for structural resilience...
I don't know about any Polyamid cones but the Kevlar and carbon fibre
ones are fantastic!  Light weight!  Rigid!  Expensive!  
TTYL - Dave
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 þ QMPro 1.53 þ Is there a Lawyer in the house?    Ok... any more?
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