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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.