Ortofon MC Anna, User Manual

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Arguably one of the most significant advancements in the MC Anna and the MC
Anna Diamond is our dramatically higher efficiency
magnet system . The optimized
geometry of the magnet system combined with choice materials like neodymium
and iron-cobalt offers an unprecedented consistency of the flux density within the
system’s air gap. Due to an increase of active material inside of the magnet system,
the magnetic field strength is delivered more uniformly, allowing each coil to sense
identical flux density regardless of its position. Because of this, dynamics and
impulse linearity are preserved to an overwhelming extent.
The use of this new optimized magnet system allows for the use of a lightweight
,
non-magnetic armature , which also provides noteworthy benefit to the dynamic
capability of the MC Anna and the MC Anna Diamond cartridges. The reason for
this is that our specially designed precision moulded non-magnetic armature does
not alter the magnetic field during movement. Hence when combined with ultrapure
oxygen-free copper coil wire, it delivers perfect reproduction of the cantilever
movements without compromise. The material applied for the armature has very
high strength and rigidity.
Magnet system
Because the new magnet system delivers
a tremendous magnetic flux density, the
need for design compromises is effectively
eliminated. It is due to this aspect that
the amount of coil windings required
to achieve significant output voltages
is reduced to a minimum, resulting in a
further reduction in moving mass.
The new magnet system has also allowed
for more spaciousness within the air gap,
allowing for coil windings to be done
completely independent of each other, without any overlap or interaction between
them and with an extreme precision in each coil turn in all layers. The cumulative
result of these improvements simply delivers more lifelike reproduction, with nearly
boundless imaging, dimensionality and dynamics.
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