Genesis 1.2 - The Crossover

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In the Genesis 1.2, the amplifier was designed as a holistic system of
integrated connecting cables, woofers, custom tailored EQ network
and remote controlled crossover circuitry. Two separate Servo-
Amplifier Modules each with its own 2kVA Power Transformers are
used per channel. This is specifically designed and tuned especially
for low frequencies in order to produce floor-shaking, musical bass to
power the servo woofers.
One side benefit of this powered woofer system is that almost any
sized amplifier can be used to drive the mid/tweeter section of the
Genesis 1.2. No longer must one choose between having an amplifier
with enough power to drive the woofers, and a smaller amplifier
having better spatial and tonal characters. Nevertheless, we do
recommend no less than 100 watts as a minimum for the mid/tweeter
sections.
5.7 The Crossover
If the servo-controlled bass amplifier is the pulsating heart of the
Genesis 1.2, the crossover is the brain. In order to manage and
maximize the performance of the extensive complement of
transducers used in the Genesis 1.2, we’ve designed a hand soldered
direct wired crossover utilizing the finest components available as well
as several custom designed elements. This includes the first multiple-
tapped copper film air-core inductor.
Each crossover is designed by computer modelling plus years of
knowledge and experience. More importantly, the crossovers are
designed with many, many hours of music listening, and constant
refining, tuning and tweaking of the circuit. Out of this comes the
“magic” that is a Genesis designed loudspeaker system.
The two crossovers are matched to closer than 0.1% between the left
and right channels. This ensures perfect phase coherence and
frequency response between the two channels.
Housed in a solid Corian enclosure, the crossover components are
direct wired, hand-soldered, and “potted” in place with vibration-
absorbing compounds to ensure the minimum interaction between the
components.
The crossover can also be specified with three electrically separate
circuits for the front tweeters, midrange and rear tweeters. This allows
the G1.2 midrange/ tweeter wings to be tri-amplified. However, we
stress that three identical amplifiers with identical loudspeaker cables
should be used.