MartinLogan CLS IIz Martinlogan Exclusives, Curvilinear Line Source Clstm, Vapor Deposited Film

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MARTINLOGAN EXCLUSIVES

Curvilinear Line Source (CLSTM)

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 disper- sion 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 con- trolled 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” cylindri- cal shape of all MartinLogan products.

Vapor Deposited Film

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 CLS IIz a wide margin of safe operation. In addition to the electrical insulation properties, this coating also provides the CLS IIz 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.

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Contents STM IIz Contents Installation in Brief Introduction AC Power ConnectionSignal Connection Introduction & OperationOperation High-Frequency Softening SwitchOperation Break-InPlacement Final Placement Extra TweakEnjoy Yourself Rules of Thumb Room AcousticsYour Room TerminologySolid Footing Dipolar Speakers and Your RoomThree Major Types of Dispersion Dispersion InteractionsControlled Horizontal Dispersion Controlled Vertical DispersionDispersion Interactions Electrostatic Advantages Electrostatic AdvantagesElectrostatic Advantages Full Range Operation Transducer Integrity Martinlogan ExclusivesCurvilinear Line Source Clstm Vapor Deposited FilmElectrostatic Loudspeaker History Electrostatic Loudspeaker HistoryElectrostatic Loudspeaker History What size amplifier should I use? Frequently Asked QuestionsHow do I clean my speakers? What is the advantage of ESL? Frequently Asked QuestionsFrequently Asked Questions Troubleshooting General Information SpecificationsWarranty and Registration ServiceGlossary of Audio Terms Glossary of Audio TermsGlossary of Audio Terms MartinLogan, All rights reserved Rev. #052902

CLS IIz specifications

The MartinLogan CLS IIz is a sophisticated hybrid electrostatic loudspeaker that exemplifies the brand's commitment to innovation and exceptional audio performance. This model is a continuation of the legendary CLS design, which has garnered a loyal following among audiophiles and music enthusiasts alike.

One of the standout features of the CLS IIz is its electrostatic transducer design. Unlike conventional dynamic speakers that rely on moving coils and cones, electrostatic speakers use a thin, electrically charged diaphragm sandwiched between two stators. This design allows the CLS IIz to produce sound with extraordinary clarity, speed, and precision, making it particularly well-suited for accurately reproducing the nuances of vocal performances and acoustic instrumentation.

The CLS IIz also integrates a new, more advanced version of the brand's Curvilinear Line Source technology. This innovation provides a wider and more consistent sound dispersion pattern, resulting in an expansive soundstage that immerses listeners in their favorite recordings. The speaker’s tall, slender design further enhances this effect, allowing for an impressive imaging capability that places sounds precisely within the listening environment.

Another key characteristic of the CLS IIz is its frequency response. The speaker is capable of reproducing frequencies from an astonishingly low 38 Hz to a remarkable 25 kHz. This wide frequency range ensures that music and audio content are delivered with great depth and richness, fully capturing the lower bass notes while maintaining the sparkling clarity of high-frequency sounds.

In terms of build quality, the CLS IIz features a sturdy yet elegant cabinet that minimizes resonance and vibration, allowing for pure audio reproduction. The speaker's sleek aesthetic is complemented by high-quality finishes, ensuring that it looks as good as it sounds, making it an attractive addition to any audio setup.

Additionally, the CLS IIz boasts versatility in its setup, allowing for positioning flexibility that accommodates various room sizes and acoustic conditions. This ensures that enthusiasts can achieve optimal sound quality regardless of their environment.

In summary, the MartinLogan CLS IIz is a marvel of modern audio engineering that combines cutting-edge technologies with a commitment to high fidelity sound. With its electrostatic design, advanced dispersion capabilities, wide frequency response, and elegant build, the CLS IIz stands as a testament to MartinLogan's dedication to providing an unparalleled listening experience.
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