4
Reflection:
acoustic energy is not
converted but reflected in an orderly,
predictable fashion.
Diffusion:
acoustic energy is dispersed in
a random and or disordered fashion.
Absorption:
acoustic energy is converted
into kinetic energy or heat. All or a
majority of the sound energy is "soaked
up" or disposed of by the object surface
or room boundary.
Bi-Amping
The power that is delivered to your
loudspeakers will have a direct effect upon
the sound of your loudspeakers. You
should select the best that you can afford.
Separating the systems will deliver benefits
that can easily be detected. We would not
recommend using different amplifiers on
different drivers.
Bi-Wiring
Improvements can be heard through
separating the energy from each filter in
the crossover. Cables vary in construction
but a good quality cable should be low in
impedance, inductance and capacitance.
Do not use cables, which act as additional
crossover components. Experimentation
is crucial in this situation and a cable that
works well in one situation / room / with
a given amplifier, may not always perform
as well when one of these variables are
changed.
Two channel loudspeaker
positioning
There are no objective criteria that can be
used to state precisely where loudspeakers
should be positioned. Should any
individual or company suggest that there
is, they should be regarded as special
people and treated with a great deal of
caution. In the global scenario, our
loudspeakers are driven by unique systems
that are selected by the owner because of
particular virtues. Every listening room is
as individual and unique in character as
the owner. Compound this complex
picture with the combination of different
equipment. Consider the changeability of
Rooms
: If the room is dressed with
heavy curtains simply changing the
curtains position can alter the whole
balance of the system. The only rule is
that there are no rules. Like producing
good wine, it is the goal that is the only
guide. The owner is the pivot in this
subtle balancing act.
The goal of high performance audio
systems is accurate reproduction. The
information, be it in groove or pit format
should be transcribed, amplified and
converted back into sound energy without
the additional views of the audio
equipment designer being combined with
that translation process.
In order to make the task of positioning
the loudspeakers less complex we would
like to make the following suggestions.
That most valuable commodity, time, is
the most important ingredient in this
process. Be prepared to make small
changes over longer periods of time.
Select four musical passages that you are
familiar with, that can fulfil the following
tests.
•
They should all be stereo recordings.
•
Select one with a distinctive and easily
heard human voice. Spoken voice is
ideal.
•
Select one passage with a full
orchestra like The Pines of Rome.
•
Select one that is very emotional for
you.
•
Select one that has a strong rhythm as
in the case of dance music.
You should appraise the performance of
the loudspeakers according to
your needs
based upon the tests above.
Cinema Systems
There is no industry standard for the
positioning of speakers for home cinema,
but there are some facts that should be
considered when creating such a dedicated
environment.
