Tannoy Dual Concentric; Tm Drive Unit - Tannoy KINGDOM ROYAL Manual

TANNOY DUAL CONCENTRIC

DRIVE UNIT
One of the unique advantages of the
Tannoy Dual Concentric™ principle is
that the low and high frequency sound
radiation is generated on the same axis.
The high frequency unit is mounted
behind, and concentrically with, the low
frequency unit. High frequency sound
radiates from the centre of the low
frequency unit through a carefully
designed high frequency exponential
horn. Low and high frequencies are
therefore fully integrated at source.
It is this feature that gives the Dual
Concentric™ driver such unique sound
reproduction qualities.
There are other significant benefits.
The high frequency unit does not
obstruct the low frequency unit in any
way (a unique feature when compared
with other so called coaxial systems).
Polar dispersion of sound is symmetrical
in both horizontal and vertical planes.
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By careful crossover network design
the virtual acoustic sources of the high
and low frequency units can be made
to occupy the same point on the axis.
Therefore the total sound appears to
emanate from a single point source
located slightly behind the drive unit.
This means that a full and accurate
stereo image can be recreated by the
loudspeakers when fed from a high
quality stereo source.
The Kingdom Royal has an all-new state
of the art 12 inch Dual Concentric
driver. The outer bass/ midrange driver
combines a revolutionary low mass,
ultra-rigid multi-fibre cone and precision
edge-wound voice coil with a massive
ferrite motor system for breathtaking
transient response across the upper
bass to lower midrange spectrum.
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