Electrostatic Advantages - MartinLogan EM-ESL User Manual

real. The following list and descriptions will give
you only a brief outline of the responsibilities and
demands placed on each speaker.
Front Left and Front Right
If these speakers will be the same two used for
your stereo playback, they should be of very high
quality and able to play loudly (over 102 dB) and
reproduce bass below 80 Hz.
Center Channel
This is the most important speaker in a home
theater system, as almost all of the dialogue and
a large portion of the front speaker information is
reproduced by the center channel. It is important
that the center speaker be extremely accurate and
mate well with the front speaker, and that it is
recommended for use as a center speaker. This is
not the place to cut corners.
Surround Speakers
We recommend (along with the film industry) that
the surround speakers play down to at least 80
Hz. Surround speakers contain the information that
makes it appear that planes are flying over your
head. Some may suggest that this is the place
to save money and purchase small, inexpensive
speakers. If you choose to do so, be prepared
to upgrade in the future as discrete multi-channel
e
lectrostatIc
How can sound be reproduced by something that
you are able to see through? Electrostatic energy
makes this possible.
Where the world of traditional loudspeaker
technology deals with cones, domes, diaphragms
and ribbons that are moved with magnetism, the
world of electrostatic loudspeakers deals with
charged electrons attracting and repelling each
other.
a
dvantages
digital encoding is proliferating rapidly and the
demands on surround speakers have increased.
Subwoofer
With any good surround system you will need high-
quality subwoofers (the .1 in a 5.1, 6.1, or 7.1
channel surround system). Most movie soundtracks
contain large amounts of bass information as part of
the special effects. Good subwoofers will provide a
foundation for the rest of the system.
Figure 13. EM-ESL speakers as front channels,
EM-C2 as the center channel,. and EM-FX2 as the
surround channels, and Dynamo 1000 subwoofers
in the front corners as the 0.1 (effects) channel.
To fully understand the electrostatic concept, some
background information will be helpful. Remember
when you learned in a science or physics class
that like charges repel each other and opposite
charges attract each other? Well, this principle is
the foundation of the electrostatic concept.
An electrostatic transducer consists of three pieces:
stators, the diaphragm and spacers (see figure
14). The diaphragm is what actually moves to
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