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Ceramic-Coated Aluminium/Magnesium (C-CAM
®
)
Since 1972, Monitor Audio’s near fanatical
commitment to excellence and innovation has
received global recognition and acclaim. When
we launched our R352MD loudspeaker - the first
model to incorporate a metal dome tweeter - it caused
quite a stir. Until that time, most metal domes were
single-metal types made from copper or titanium and
virtually all sounded unconvincing. The R352 used
an aluminium/magnesium alloy dome and sounded
significantly better and smoother than all of its
single-metal rivals. This radical design formed the
blueprint for successive generations of our C-CAM
metal domes.
All the radiating surfaces of the Platinum drivers are
formed from C-CAM, a material originally developed
by the aerospace industry for jet engine components.
Its properties are ideal for loudspeaker cones:
extremely rigid, yet light enough to yield high overall
efficiency. In manufacture, aluminium/magnesium
alloy undergoes stress-relieving processes to
remove surface deformation and molecular weakness.
Once formed, the alloy cone is subjected to a high
temperature anodic coating process, in which a
layer of pure ceramic alumina is depleted onto its
surfaces to give a completely rigid exterior.
Conventional cone materials are liable to flex or
twist in operation, producing a significant level of
audible distortion. C-CAM cones have a much higher
resistance to bending stress and therefore exhibit
much greater fidelity.
T e c h n o l o g i e s