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AC Power ConnectionIntroduction
4 Introduction & Operation
INTRODUCTION & OPERATION
Congratulations! You have invested in one of the world’s
premier loudspeaker systems.
The MartinLogan CLS IIz represents the culmination of an
intensive, dedicated group research program directed
toward establishing a world class reference monitor
utilizing leading-edge technology, without compromising
durability, reliability, craftsmanship or aesthetic design.
The result of cumulative technology gleaned from previous
research and development projects, the CLS IIz represents the
latest developments in electrostatic loudspeaker technology.
The materials in your new CLS IIz speakers are of the highest
quality and will provide years of enduring enjoyment and
deepening respect. All wood pieces are constructed from
selected hardwoods. They are grain and color
matched and
finally hand finished.
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
electrostatic deposition process. This panel assembly houses
a membrane just 0.0005 of an inch thick. Ruggedly con-
structed and insulated, as much as 200 watts of continuous
power has driven the CLS IIz’s energized diaphragm into
massive excursions with no deleterious effects.
The other sections of your User’s Manual will explain
in detail the operation of your CLS IIz speakers and the
philosophy applied to their design. A clear understanding
of your speakers will insure that you obtain maximum per-
formance and pleasure from this most exacting transducer.
It has been designed and constructed to give you years of
trouble-free listening enjoyment.
Because your MartinLogan CLS IIz’s use an internal power
supply to energize their electrostatic cells with high-volt-
age DC, they must be connected to an AC power source.
For this reason they are provided with the proper IEC standard
power cords. These cords should be firmly inserted into the
AC power receptacles on the rear connection panel of the
speakers, then to any convenient AC wall outlet. The CLS IIz’s
integrate a signal-sensing power supply which will switch
off after a few minutes of no music signal and requires less
than two seconds to recharge the panels when a music signal
is present.
Your CLS IIz speakers are wired for the power service sup-
plied in the country of original consumer sale. The AC
power rating applicable to a particular unit is specified
both on the packing carton and on the serial number plate
attached to the speaker.
If you remove your CLS IIz speakers from the country
of original sale, be certain that AC power supplied in any
subsequent location is suitable before connecting and
operating the speakers. Substantially impaired performance
or severe damage may occur to a CLS IIz speaker if opera-
tion is attempted from an incorrect AC power source.
WARNING! The power cord should not be installed,
removed, or left detached from the speaker while
the other end is connected to an AC power source.
Signal Connection
Use the best speaker cables you can. The length and type of
speaker cable used in your system will have an audible
effect. Under no circumstance should a wire of gauge higher
(thinner) than #16 be used. In general, the longer the length
used, the greater the necessity of a lower gauge, and the
lower the gauge, the better the sound, with diminishing
returns setting in around #8 to #12.