Martinlogan Exclusives

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 transduc- ers present 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 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 electrostatic products. It is one of the many reasons behind our reputation for high quality sound with prac- tical usability. This is also why you see the unique “see through” cylindrical shape of MartinLogan products.

Generation 2 Diaphragm

Stage’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 uniform surface resistivity characteristics, an optically transparent surface, and a nearly massless dia- phragm. 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.

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 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 proprietary Vacuum Bonding process guarantees uniform diaphragm tensioning and extremely precise construction tolerances, resulting in unequivocal precision, linearity and efficiency.

AirFrame™ Technology

Ultra-rigid extruded aerospace grade aluminum alloy AirFrame™ technology rigidifies and secures the XStat™ electrostatic panel to the woofer cabinet while at the same time providing sonic and electrical isolation. Advanced AirFrame™ technology maximizes the electrostatic pan- els playable surface area and dipole dispersion pattern while minimizing potentially acoustically destructive intermodulated distortion caused by spurious vibrations and resonance. The result? Ultimate imaging capability, low-level detail resolution, improved efficiency and over- all accuracy.

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