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14
This rule suggests that a little reflection is good.
As a matter of fact, some rooms can be so “over
damped” with carpeting, drapes and sound
absorbers that the music system can sound dull and
lifeless. On the other hand, rooms can be so hard
that the system can sound like a gymnasium with
too much reflection and brightness. The point is
that balance is the optimum environment.
Breakup Objects
Objects with complex shapes, such as
bookshelves, cabinetry and multiple shaped walls
can help break up those sonic gremlins and diffuse
any dominant frequencies.
DIPOLAR SPEAKERS AND YOUR ROOM
MartinLogan electrostatic loudspeakers are known
as dipolar radiators. This means that they produce
sound from both their fronts and their backs.
Consequently, musical information is reflected by
the wall behind them and may arrive, either in or
out of step, with the information produced by the
front of the speaker.
The low frequencies can either be enhanced or
nulled by the position from the front wall. Your
EM-ESL X’s have been designed to be placed two
to three feet from the front wall (the wall in front
of the listening position) to obtain the best results;
however, your room may see things differently. So
listening to the difference of the bass response as a
result of the changes in distance from the front wall
can allow you to get the best combination of depth
of bass and tonal balance.
Now that you know about reflective surfaces and
resonant objects, you can see how the midrange
and high frequencies can be affected. The timing
of the initial wave as it radiates to your ears, and
then the reflected information as it arrives at your
ears later in time, can result in confusion of the
precious timing information that carries the clues
to imaging. Consequently the result is blurred
imaging and excessive brightness. Soft walls,
curtains, wall hangings, or sound dampeners (your
dealer can give you good information here) can
be effective if these negative conditions occur.
SOLID FOOTING
After living and experimenting with your EM-ESL
X speakers, you may want to expose the ETC
(energy transfer coupler) Spikes (see figure 8).
With the use of these spikes, the EM-ESL X will
become more firmly planted on the floor and,
consequently, bass will tighten and imaging will
become more coherent and detailed. It is best not
to use the spikes, however, until you are secure in
the positioning, as the spikes can damage the floor
if the speaker is moved.
Exposing the Spikes
Remove the rubber bumpers to expose the spikes
(see figure 6). If the speaker does not sit level loosen
one spike until level is achieved. Caution: Make
sure your hands and any cabling are clear of the
spikes. Do not slide speaker as spikes are sharp
and can damage your floor or carpet. Caution:
Walking the speaker may result in a broken spike.
Fig. 8
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