XStat™ Transducer
XStat™ transducers incorporate a myriad of technology and
design innovations including CLS™, MicroPerf, Generation 2
Diaphragms, ClearSpars™, and Vacuum Bonding.
CLS™ (Curvilinear Line Source)
Since the beginning of audio, achieving smooth dispersion has
been a problem for all designers. Large panel transducers pres-
ent unique challenge because the larger the panel, the more
directional the dispersion pattern becomes.
Wide range electrostats have long been one of the most
problematic transducers because they attain their full range
capabilities via a large surface area. It looked as if they were in
direct conflict to smooth dispersion and almost every attempt to
correct this resulted in either poor dispersion or a serious com-
promise in sound quality.
After extensive research, MartinLogan engineers discovered
an elegantly simple solution to achieve a smooth pattern of
dispersion without degrading sound quality. By curving the
horizontal plane of the electrostatic transducer, a controlled
horizontal dispersion pattern could be achieved, yet the puri-
ty of the almost massless electrostatic diaphragm remained
uncompromised. After creating this technology, MartinLogan
developed the production capability to bring it out of the
laboratory and into the market place. You will find this propri-
etary MartinLogan technology used in all of our electrostatic
products. It is one of the many reasons behind our reputa-
tion for high quality sound with practical usability. This is also
why you see the unique "see through" cylindrical shape of
MartinLogan products.
Generation 2 Diaphragm
Stage X's diaphragm employs an extremely sophisticated
conductive coating applied to the polymer surface at an
atomic level using a plasma bonding process. A proprietary
compound is driven into the surface of the polymer film in an
oxygen free argon chamber. This process allows extremely uni-
form surface resistivity characteristics, an optically transparent
surface, and a nearly massless diaphragm. This uniform surface
resistivity controls the electrostatic charge on the diaphragm
surface and regulates its migration. As a result, no discharging or
"arcing" can occur.
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MicroPerf Stator
Sleek. Compact. MicroPerf stator technology, featured in all
XStat™ transducers, reveals more open playable area in each
panel, offering increased performance from even more compact
stat panels. It is significant to note that the XStat™ transducer in
the radical new Stage X loudspeaker supports the bandwidth
and dynamics associated with traditional electrostatic panels
nearly twice its size.
Vacuum Bonding
To achieve the power, precision, and strength of the XStat™
transducer, two insulated high-purity carbon steel stators along
with a proprietary plasma bonded diaphragm and ClearSpar™
spacers are fused into a curved geometry with an aerospace
adhesive whose strength exceeds that of welding. Our propri-
etary Vacuum Bonding process guarantees uniform diaphragm
tensioning and extremely precise construction tolerances, result-
ing in unequivocal precision, linearity and efficiency.
Folded Motion™ Tweeter
The Folded Motion Tweeter works by moving air (which cre-
ates sound) perpendicular to the folded ridges of the diaphragm,
similar to how an accordion works. This extremely low mass dia-
phragm "squeezes" air and requires almost 90% less excursion
than the typical 1" dome tweeter, which drastically minimizes
distortion while providing a lightning fast response time. The
increased surface area also provides a wide, yet controlled sound
dispersion to create a realistic and carefully etched sound stage.
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MartinLogan Exclusives
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