Full range electrostatic operation – MartinLogan CLX User Manual

Page 16

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1 Electrostatic Advantages

Another significant advantage of MartinLogan’s exclusive

transducer technology reveals itself when you look at exam-

ples of other loudspeaker products on the market today.

The CLX uses no crossover networks above 360 Hz

because they are not needed. The CLX has a single elec-

trostatic transducer reproducing all frequencies above 360

Hz simultaneously. How is this possible?

First we must understand that music is not composed

of separate high, mid and low frequency pieces. In fact,

music is comprised of a single complex waveform with all

frequencies interacting simultaneously.

An electrostatic transducer acts as an exact opposite of the

microphones used to record the original event. A micro-

phone, which is a single working element, transforms

acoustic energy into an electrical signal that can be ampli-

fied or preserved by some type of storage media. The

CLX’s electrostatic transducer transforms electrical energy

from your amplifier back into acoustical energy.

Due to the limitations of electromagnetic drivers, no single

unit can reproduce the full range of frequencies. Instead,

these drivers must be designed to operate within a nar-

row, fixed bandwidth of the frequency range, and then

combined electrically so that the sum of the parts equals

the total signal—in theory.

To use multiple drivers, a crossover network is enlisted to

attempt a division of the complex musical signal into the

separate pieces (usually highs, mids, and lows) that each

specific driver was designed to handle. Unfortunately, due

to the phase relationships that occur within all crossover

networks and during the acoustical recombination pro-

cess, nonlinearities and severe degradation of the music

signal take place in the ear’s most critical zone above 360

Hz (see figure 16).

The CLX’s high-frequency electrostatic transducer can

reproduce all frequencies above 360 Hz simultaneously.

You have in one transducer the ability to handle in elegant

simplicity these critical frequencies.

The crossover phase aberrations that are associated with

traditional tweeter, midrange, and woofer systems are

eliminated. The result is a dramatic improvement in imag-

ing and staging performance due to the minutely accurate

phase relationship of the full-range panel wave launch.

Full Range Electrostatic Operation

Figure .16 . This diagram illustrates how a
conventional speaker system must use mul-
tiple crossover networks that have negative
effects on the musical performance.

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