
Aphex Systems Ltd. Model 204Page 14
204
instruction Manual
4.4 AURAL EXCITER TUNE CONTROL
The Aural Exciter Tune control adjusts the corner frequency of the high pass filter, thus set-
ting the range of frequencies being enhanced by the Aural Exciter. The range of the corner
frequency is 800Hz (fully counter clockwise) and 6kHz (fully clockwise). The 12 o’clock set-
ting is approximately 3kHz. As the tune control is adjusted clockwise, less and less mid-
frequency enhancement will take place.
Refer to the Tune Control With Frequency Markings in section 5.4.
4.5 AURAL EXCITER HARMONICS CONTROL
This control adjusts the amount of harmonics being generated by the exciter. It controls
the texture and detail of the effect. The MIN position is generally considered NORMAL, and
is useful for voices and total mixes. The MAX position is most useful on specific tracks,
especially percussive instruments, horns, guitars and digital instruments. The higher settings
provide more of an “edge” to a track or instrument and can sometimes make all the differ-
ence between just an OK track or one that really cooks.
4.6 AURAL EXCITER MIX CONTROL
This control varies the amount of enhancement mixed back into the original signal, from
the sidechain. Maximum effect is achieved when the control is set fully clockwise. No effect
is audible when the control is turned completely counter clockwise.
4.7 PROCESS IN/OUT BUTTONS
These lighted Process In/Out buttons allow you to turn the enhancement for
each channel on and off individually. The IN position turns all processing on
and sends Aural Exciter and Big Bottom enhancement to the outputs. The
buttons glow green when processing is on. They are dark when processing is
off. When processing is off, only the unmodified signal passes through to the
outputs. Switching the button back and forth offers a quick A/B comparison,
allowing you to hear the enhancements from the 204 in your program con-
tent.
Note: This is not a hard wired bypass. The audio still passes through the input and output stages but
enhancement sidechains are turned off.
Controls & Indicators
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