features
07
features
06
The tweeter’s diaphragm is manufactured
from silk fabric which is coated with a
lightweight damping layer.
magnetically shielded drive units
Both drive units are magnetically shielded
to allow Calliope to be used in close
proximity to a television.
hi-performance crossover
The components used throughout the
crossover are of the highest quality to
ensure signal integrity and clarity.The
inductors use oxygen-free, high purity
copper (OFHC) wound on bobbin cores to
improve saturation current limits, reduce
DC resistance and minimise stray magnetic
field leakage.The capacitors are
manufactured with an over-size
polypropylene dielectric and are rated at
250V DC to guarantee uncompressed
power output.The resistors are high-power
devices offering extremely high peak
voltage operation without compression.
oxygen-free copper loudspeaker
connection terminals
The use of proprietary OFHC gold plated
terminals achieves a clear sonic
improvement compared to the typically
used alternatives. No nickel plating has
been used between the OFHC foundation
and the gold finish as it adds ‘grain’ to the
sound.Whilst this will lead, in the long
term, to some dis-colouration of the
terminals due to the copper atoms partially
diffusing into the anti-corrosion gold layer,
the customary nickel plate interlayer is well
known (as a ferro-magnetic and hard
oxidised metal) to affect sound quality and
was eliminated.
single input connection
After extensive research into the sound
quality of our flagship loudspeaker, the F1
AvantGarde, it was discovered that the
potential benefits of multi-wired terminals
for loudspeaker cable connection were
outweighed by the losses incurred in their
implementation, e.g. additional contact
interfaces and electrical connection straps.
In addition, it has been found that even with
the finest top grade power amplifiers,
single input terminals improved perceived
dynamics and musical expression.The
results of this research have been applied
to Calliope to realise the full potential of
the components employed throughout
the system.
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