MartinLogan Source Speakers 用户手册

16     MartinLogan Exclusives

Since the beginning of audio, achieving smooth dispersion 
has been a problem for all designers. Large  panel trans-
ducers 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 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 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 practical 
usability. This is also why you see the unique “see through” 
cylindrical shape of MartinLogan products.

Source’s diaphragm employs an extremely sophisticated 
conductive coating applied to the polymer surface at an 
atomic level using a plasma bonding process. A propri-
etary 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 
diaphragm. This uniform surface resistivity controls the elec-
trostatic charge on the diaphragm surface  and regulates
its migration. As a result, no discharging or “arcing” can 
occur. 

Sleek. Compact. MicroPerf stator technology, featured in 
Source’s electrostatic transducer, reveals more open  play-
able area in each panel, offering increased performance 
from even more compact stat panels. It is significant to 
note that the electrostatic transducer in the radical new 
Source loudspeaker supports the bandwidth and dynam-
ics associated with traditional electrostatic panels nearly 
twice its size. 

To achieve the power, precision, and strength of the 
electrostatic 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 tension-
ing and extremely precise construction tolerances, resulting 
in unequivocal precision, linearity and efficiency. 

Ultra-rigid extruded aerospace grade aluminum alloy 
AirFrame™ technology rigidifies and secures the elec-
trostatic 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 overall 
accuracy.