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MartinLogan Cinema [11/20] Curvilinear line source cls tm

Since the beginning of audio, achieving smooth dispersion

has been a problem for all loudspeaker designers. Large panel

transducers present even more of a challenge because the

larger the panel, the more directional the dispersion

pattern becomes.

Full 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 dispersion without degrading sound quality. By curving

the horizontal plane of the electrostatic transducer, a

controlled horizontal dispersion pattern could be achieved,

yet the purity 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 proprietary MartinLogan technology used

in all of our 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 all MartinLogan products.

The diaphragm material used in all MartinLogan speakers

employs an extremely sophisticated conductive surface

that has been vapor deposited on the polymer surface at

an atomic level. A proprietary compound is vaporized then

electrostatically driven into the surface of the polymer film

in a vacuum chamber. This process allows an optically

transparent surface adding no mass to the diaphragm that

is extremely uniform in its surface resistivity characteristics.

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.

Transducer Integrity

All MartinLogan transducers begin with two pieces of high-

grade, cold rolled steel. These steel pieces are then custom

perforated and insulated with a unique composite coating.

This proprietary coating insulates the stator to three times

its actual needed working voltage and gives the Cinema a

wide margin of safe operation. In addition to the electrical

insulation properties, this coating also provides the Cinema

with a durable, attractive finish that dampens the steel to

prevent ringing. These pieces are then sandwiched with

our exclusive vapor deposited diaphragm and spacers into

a curved geometry, and bonded together with aerospace

adhesives whose strength exceeds that of welding.

The result of these advanced technologies is a transducer

that is attractive, durable, highly rigid, well dampened,

and neutral.

Curvilinear Line Source (CLS

) Vapor Deposited Film

MartinLogan Exclusives 11

MARTINLOGAN EXCLUSIVES

MartinLogan Cinema [11/20] Curvilinear line source cls tm

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