JAMO C 80 Series Opuscolo - Pagina 13
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Mid-woofer/woofer
The woofer of the C 80 speakers features a brand new HCC (Hard Conical Cone),
made from an incredibly rigid conically-shaped fi bre-glass honeycomb sandwich.
This comprises a paper mesh between two layers of woven fi bre-glass. Aside from
the exclusive construction, the special weave ensures a uniform material thickness
over the entire diaphragm.
A loudspeaker diaphragm can be compared to a piston. To cope with the heavy
demands on the diaphragm materials' stretching and compression properties, the
composite fi bre material is composed of a special mix of different types of fi bres
and treated with a tough hardening resin.
When its glued to each side of the paper mesh the result is a very hard and light
cone with good internal damping.
Combined with the natural rubber suspension, which effectively prevents vibra-
tions from travelling back to the diaphragm, the result is a well controlled dia-
phragm that operates without 'break-up' at up to 4kHz, well beyond its working
range.
Jamo HCC operates without break-ups incritical areas.
Other speaker break-up.
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