TheDirector
Model D3400 • Model D4400
Installer’s Guide
®
25
Parametric and Graphic Equalization
The graphic equalization controls in The Director are se
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lected to correspond with the characteristics of wall and ceil
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ing speakers and as such are very effective. Graphic controls
are the easiest to tune and provide a “graphic” representation
of what the adjustments are. Parametric equalization requires
selecting the frequency, the bandwidth of the control, as well
as the level of adjustment, not an easy task to get correct. In
general, parametric equalization is valuable for very large
areas of change or very narrow areas.
Parametric equalization in The Director most likely is
best used for taming very narrow peaks. Do not use for very
narrow dips as these dips are likely caused by cancellations
and will not respond to equalization boost.
Here is an introduction to each of the graphic control
frequencies and what their affect is on music.
45Hz — Low bass.
This is about the lowest frequency
which in-wall, extension and small bookshelf speakers can
achieve. Boosting it too far might cause problems, even
though The Director’s subsonic filter cuts frequencies be
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low your adjustment point. But if your speakers can take it,
a mild boost will enhance bass instruments such as Fender
bass, kick drum, floor toms, timpani and double bass viols.
150Hz — High bass.
There’s a lot of bass information
at this frequency. In fact, most modern music is mixed to
enhance this area of the frequency spectrum. 150Hz also
determines the depth of male vocals and contains reverberant
information which contributes to the spaciousness of sound.
Boosting 150Hz can add “POW!” and impact to bass or it can
make the sound “bonky” and “boomy”. This is a critical ad
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justment with small or in-wall speakers. Experiment with it.
300HZ and 700Hz — High and low midrange.
These
controls directly affect the sound of instruments and vocals.
These bands also determine the speaker’s presence (whether
the music sounds far away or close in). Small speakers often
produce too much midrange, so these controls are candidates
for being turned down slightly during your initial experimen
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tation. Definitely consider reducing 700Hz if you are only
using your extension speakers for background music.
2500Hz — Treble.
Female vocals and the “edge” of
instruments such as guitars, snare drums, saxes, violins, etc.
Adjusting the Signal
Processing
Содержание The Director D3400
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