Martinlogan Exclusives; Xstat Transducer; Cls (Curvilinear Line Source); Generation 2 Diaphragm - MartinLogan renaissance ESL 15A User Manual

MAR TI NLO G AN EX C LU S IV E S

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
compromise in sound quality.
After extensive research, MartinLogan engineers discovered an
elegantly simple solution to achieve a smooth pattern of disper-
sion without degrading sound quality. By curving the horizontal
plane of the electrostatic transducer, a controlled horizontal dis-
persion pattern could be achieved, yet the purity of the almost
massless electrostatic diaphragm remained uncompromised.
After creating this technology, MartinLogan developed the pro-
duction capability to bring it out of the laboratory and into the
market place. You will find this proprietary MartinLogan tech-
nology used in all of our electrostatic products. It is one of the
many reasons behind our reputation 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

The electrostatic transducer's diaphragm employs an extreme-
ly 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 poly-
mer film in an oxygen free argon chamber. This process allows
extremely uniform surface resistivity characteristics, an optical-
ly transparent surface, and a nearly massless diaphragm. This
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uniform surface resistivity controls the electrostatic charge on
the diaphragm surface and regulates its migration. As a result,
no discharging or "arcing" can occur.

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 trans-
ducer 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,
resulting in unequivocal precision, linearity and efficiency.

Ultra-Rigid AirFrame Technology

XStat panels are joined to their speaker cabinets using
MartinLogan's AirFrame technology, manufactured from
aerospace-grade extruded aluminum alloy. This makes the
panels extremely rigid without obstructing playable surface
area or interfering with the panel's dipole sound radiation pat-
tern, while also providing electrical and acoustical isolation,
minimizing intermodulation distortion caused by vibration and
resonance.

Powered Force Forward Bass Technology

Through integrated engineering of advanced amplification
and transducer designs, PoweredForce bass technology results
in immense bass dynamics and precision beyond the reach of
traditional systems. Low-frequency equalization capabilities,