"Ian Bell" wrote in message
news:4419d747.0@entanet
Serge Auckland wrote:

My question is why Moving Coils should be thought to be
better than moving magnets. I can think of several
reasons why they should be worse, lower compliance and
higher mass, but not why they should be better.
Trackability should be better on a MM, as should record
wear due to lower tracking weights.


I am surprised there has been so little development of
cartridges beyond the two basic magnetic types and good
old ceramic. What about an optical cartridge for example?

They exist. One example is the ELP laser turntable.