AV>ML> Why Big power ???? it's for today's low efficiency loudspeakers
  >ML> (typical 90 db for 1 watts at one meter).
AV>Ah... nice of them... but it sounds odd to me because I have read that 
there
  >a way to deploy a diamond coating on things which would increase the 
speaker
  >efficiency a lot (imagine... diamond-hard cones. Btw, more clarity than 
ever
Question:  I know that diamond has a very high hardness.  It is very
good for cutting things.  I also know that a diamond is very brittle.
The way a jewelry diamond is made is by chipping off parts until it has
the cut desired ( it does this along plains of crystallization so you
get nice regular facets )
I would imagine that a speaker cone with a diamond coating would
fracture the first time you applied a signal to it...
To make a speaker cone work better, it should be totally rigid.  Good
lightweight composite materials such as Kevlar and some of the carbon
fibers do an excellent job.  Titanium works well for smaller cones.
Placing a diamond coating on a speaker cone sounds like a wonderful
exercise in marketing hype if the speakers cost less than $1,000US
each. If they cost more, it would have to be a truly awesome "golden
ears" hi-fi marketing scam...
The latter is marketing by intimidation:
What??? You don't hear the difference???
Well then...  You don't have "golden ears" after all...   
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 þ QMPro 1.53 þ I think sex is better than logic, but I can't prove it.
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