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Exos Crossover for the STATEMENT evolution 2 speaker system
Use of the STATEMENT EXOS crossover will result in substantial improvements in all aspects of
your system's performance. Bass will be more extended with more impact and control. Special
bass contour controls allow you to tailor the bass response to suit your particular room environment
or listening tastes. The crossover region between the woofer and electrostatic panel is optimized,
thus making the system blend much more homogeneous. Highs are much more extended, detailed
and effortless. The system becomes much more dynamic with less strain. When biamplifying with
the EXOS crossover, the right and left full-bandwidth signals are divided into separate high and low
frequency signals after the preamplifier by means of an active electronic crossover. These signals
are then fed to dedicated high and low frequency amplifiers. With the frequency division of the sig-
nal prior to amplification, each amplifier has only to contend with frequencies of a narrow band-
width, thus it cannot combine high and low frequency signals and produce sum and difference by-
products (intermodulation distortion or IM). For example, to reproduce deep bass such as an organ
tone or kick drum, very high power (current) is needed. Since the low frequencies have their own
dedicated amplifier, this demand for low frequency power will not affect the ability of the high fre-
quency amplifier to perform its function normally, whereas if all frequencies were reproduced by the
same amplifier, its power supply might temporarily be depleted by the deep bass passage, causing
dynamic compression or clipping of the high frequency material. Another added benefit of band-
width limiting an amplifier, particularly the high frequency amplifier, is the slight increase in dynamic
power output that occurs. The amplifier does not have to work as hard due to the reduction in the
bandwidth amplification requirements. Therefore the amplifier can apply more power into the
smaller frequency region.
Today we are finding all elements in the audio chain can and will affect your system's performance.
Of these elements, your room is the worst offender. Once the precisely tailored musical signal is
launched from your speaker system, your room then has its way with that musical signal, particu-
larly with the larger wavelengths of the bass region. Your room will enhance and cancel certain
frequencies, making a perfect speaker look less than perfect in the best of instances and like a
jumbled mess in the worst of instances. The Bass Contour controls of the EXOS crossover can be
used much like an accurate bass/room equalizer, designed to neutralize the specific problem
areas of your room, thus helping you optimize the performance of the STATEMENT evolution 2.
These are a very accurate and precise pair of controls that allow you to adjust your speakers out-
put in the bass region, the most problematic area of music reproduction.
Operation
The EXOS and Your Room
Summary of Contents for Exos
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