MartinLogan EFX Manuel De L'utilisateur page 19

Contents and Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Low Voltage (DC) Power Connection . . . . . . . . . . . . . . . . . . . 20
Speaker Level Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Break-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Mounting the EFX On A Wall . . . . . . . . . . . . . . . . . . . . . . . . . 21
Changing the Direction of Rotation. . . . . . . . . . . . . . . . . . . . . 23
Room Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Your Room. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Rules of Thumb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Dipolar Speakers and Your Room . . . . . . . . . . . . . . . . . . . . . . 24
Dispersion Interactions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Controlled Horizontal Dispersion . . . . . . . . . . . . . . . . . . . . . . 25
Controlled Vertical Dispersion . . . . . . . . . . . . . . . . . . . . . . . . 25
Three Major Types of Dispersion . . . . . . . . . . . . . . . . . . . . . . 25
Home Theater. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Electrostatic Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Full Range Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
MartinLogan Exclusives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
XStat™ Transducer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
CLS™ (Curvilinear Line Source). . . . . . . . . . . . . . . . . . . . . . . . 29
Generation 2 Diaphragm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
MicroPerf Stator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Vacuum Bonding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
AirFrame™ Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Electrostatic Loudspeaker History . . . . . . . . . . . . . . . . . . . . . 30
Frequently Asked Questions. . . . . . . . . . . . . . . . . . . . . . . . . . 32
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Warranty and Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Glossary of Audio Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
C
ontents and
Congratulations! You have invested in one of the world's
premier loudspeaker systems.
The MartinLogan EFX represents an advanced combination
of sonic technologies establishing an unprecedented direction
for audiophile design. The result of years of research, the new
EFX™ hybrid electrostatic loudspeaker features XStat™ tech-
nology, dramatically reducing cabinet size, yet establishing
new standards for efficiency, dynamics and precision.
Housed within a radical, ultra-rigid extruded aluminum
AirFrame™, the EFX's new CLS XStat™ transducer builds upon
the legacy of MartinLogan's electrostatic heritage with the
incorporation of advanced vacuum bonding and MicroPerf
stat panels, providing even greater efficiency and precision.
The integration electrical interface technology developed
by MartinLogan's CLX™ engineering team extends effortless
dynamics and purity, resulting in even higher sonic standards
of efficiency and precision.
Featuring an advanced crossover topology derived from the
CLX™ loudspeaker, each EFX™ crossover utilizes precision
audiophile-grade polypropylene capacitors and high-purity
air-core coils. This advanced crossover topology flawlessly pre-
serves microscopic subtleties while effortlessly handling the
broadest range of dynamics contained within even the most
demanding sonic source.
The materials in your new EFX speakers are of the highest
quality and will provide years of enduring enjoyment and
deepening respect. The cabinetry is constructed from the high-
est quality composite material for acoustical integrity and
features real wood veneers.
Through rigorous testing, the curvilinear electrostatic panel
has proven itself to be one of the most durable and reliable
transducers available today. Fabricated from a custom tool
punched high-grade steel, the patented panel is then coated
with a special polymer that is applied via a proprietary elec-
trostatic bonding process. This panel assembly houses a
membrane just 0.0005 of an inch thick. Ruggedly constructed
and insulated, the panel is rated to easily handle 20–300 watts
of power with no deleterious effects.
The other sections of your User's Manual explain in detail the
operation of your EFX speakers and the philosophy applied to
their design. A clear understanding of your speakers will insure
that you obtain maximum performance and pleasure from this
most exacting transducer. It has been designed and constructed
to give you years of trouble-free listening enjoyment.
I
ntroduCtIon
Contents and Introduction 19