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This results in a loudspeaker system that is virtually room-
independent. Also, because there are no phase and frequency
distorting reflections created, one can be transported into the
audience of the actual concert hall where the music was recorded.
5.2 The Genesis Ribbon Tweeter
Over the past two decades, reviewers in the audiophile press have
often remarked that the Genesis circular ribbon tweeter is the world’s
best. It is a one inch circular planar ring-ribbon design crafted from an
extremely thin membrane of Kapton with a photo-etched aluminum
“voice coil” that is a mere 0.0005 inch thick. The entire radiating
structure has less mass than the air in front of it! That is why it will
accurately reproduce frequencies beyond 36k Hz.
The result of this design is a driver that has a rapid and uniform
response to high frequencies, and has the speed of the best
electrostatic designs without the high distortion and poor dispersion
that is typically associated with them.
The Genesis 1.2 uses twenty-six of these tweeters matched to within
1dB configured as a vertical line source (twenty front-firing, and six to
the rear). In addition to creating the dipole line source, the output is
distributed over many drivers, with each working at very low-stress.
This dramatically lowers the distortions in the high frequencies at all
reasonable listening volumes.
5.3 75-inch Midrange Ribbon
We sometimes say that the midrange is a window into the mind of a
composer or a singer. And indeed, the midrange is where the “magic”
is in a well-recorded musical event. This is why the G1.2 loudspeaker
system uses a single 75-inch ribbon per channel as a dipolar line-
source to reproduce these critical frequencies.
The midrange ribbon used in the G1.2 is manufactured to Genesis’
specifications. The ribbon itself is made of a very thin layer of
aluminum laminated to a substrate of mylar that is 0.001inch thick.
The ribbon is then suspended in the magnetic field created by over 36
feet of barium-ferrite magnets.
The result is a perfect line-source ribbon generating a continuous and
perfectly coupled wave front. The benefit of this to the listener is a
wide and even horizontal dispersion yielding a large and highly stable
sweet spot.
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