technical data
15
technical data
14
technical data
The 180 mm bass units are manufactured into a die-cast
aluminium chassis to prevent flexure and therefore to minimise
energy transfer between the drive unit and enclosure. The
combination of a low-loss rubber roll surround and linear spider
ensure that DC offset is eliminated under extreme excursion
conditions. This yields a very low 2nd order harmonic distortion
content resulting in a clean and natural performance. The voice
coil wire is wound on an aluminium former to provide maximum
strength/weight ratio and allow high power dissipation. This
feature prevents the voice coil from flexing under extreme
acceleration forces.
technical data
(cont’d)
The motor system incorporates three copper rings into its
assembly in order to minimise effects of flux modulation caused
by Eddy currents being generated as the voice coil moves
through the magnetic field within the air gap. This Faraday loop
suppresses Eddy current formation which minimises non-linearity
and the associated 3rd order harmonic distortion. Carbon fibre-
loaded pulp cones create a stiff yet well damped diaphragm that
remains pistonic through the passband.
The 150 mm midrange unit uses a die-cast aluminium chassis.
The geometry of this 'Grasshopper' chassis has been optimised to
allow undisturbed airflow from the rear of the diaphragm. The
distances between the diaphragm and the chassis coincides with
wavelengths within the midrange bandwidth that the human ear
is most sensitive to. It is therefore crucial to minimise any
resonances that may occur around this bandwidth. As such, the
diaphragm is manufactured from several paper 'petals' that are
married to a visco-elastic interface. This eliminates spurious
vibration and suppresses unwanted energy reflection up and
down the cone profile.
The 20 mm tweeter is manufactured into a precision machined
housing made from aluminium and steel. The cup and back plate
form part of the screened magnetic circuit to prevent stray flux
leakage. The faceplate is manufactured to the same exacting
standards as the trim rings to provide the excellent aesthetic
finish. The tweeter boasts an extremely low free-air resonance
Tweeter
Woofer
Woofer
Midrange
Plinth
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