JAMO C 807 Brochure - Page 17

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Finally, the very rigid material ensures that the heavy magnets and the voice coil

always are perfectly aligned with the voice coil, in the exact centre of the magnet

gap.

X-over

As should be apparent from the drive unit descriptions above, we wanted to start

out with drivers of immense fundamental quality, precisely so that we would only

need minimal assistance from the cross-over.

Consequently, the cross-over in the Jamo C 80 is of a relatively simple – in the most

positive sense of the word – low-order conﬁ guration.

The advantages of using what is basically a 2nd order ﬁ lter is that both electrical

and acoustical phase angles are kept at very small values, something that's of great

importance both in terms of sound quality and the eventual load imposed on the

ampliﬁ er.

Cabinets

The design of the C 80 allows the use of large cabinets without the loudspeaker

seeming unduly imposing. Also the arc shape damps standing waves. The cabinet

sides are made of multiple layers of MDF board, high-frequency glued together for

optimum surface contact between them.

The arc-shaped design itself results in a much more rigid panel (compared to a ﬂ at

panel) and to further improve rigidity the cabinet features internal bracings mak-

ing it very inert-sounding, thus preventing undesirable vibrations from colouring

the speaker's output.

The planar design of the cabinet fronts gives optimum working conditions, i.e. a

minimum of diffraction (colouration/distortion particularly in the upper midrange

and treble, due to reﬂ ections from irregularities on the loudspeaker front),

All C 80 cabinets are made of heavy MDF board, a solid and inert base for the driv-

ers to work in.

All the C 80 ﬂ oorstanders are equipped with die-cast aluminium feet to obtain best

possible placement. Using the included spikes – with or without the rubber feet

– secures the speaker ﬁ rmly, something which is essential to obtain maximum per-

formance.

Using the adjustable spikes ensures a good mechanical contact to the ﬂ oor, irre-

spective of the ﬂ oor material underneath. If you prefer to decouple it from the ﬂ oor,

this can be done by using the enclosed rubber absorbers.