Arturia EQ SITRAL-295 User Manual page 25

4.2.3.4. Präsenz (Presence)
This is where you control the main equalization band, labeled Presence (Präsenz). This is a
Bell Band with a very soft curve. You have controls for the Frequency (the left control knob)
and for the Gain (the right control knob). Range (Q) is fixed, as in the other bands.
Presence is a term that first appeared in guitar amplifiers in the 50s. It also appeared in
the most famous Neve equalizers and several graphic equalizers. This term usually refers
to a range of mid-high frequencies between 1 kHz and 5 kHz, responsible for clarity and
definition in most sound sources. Indeed, human hearing is particularly sensitive to that
range and to any changes applied to it.
The original EQ units were intended for broadcast consoles, which primarily processed
voice talent and speakers. Therefore, the original EQ is tailored to efficiently deal with vocals.
This band allows to place any vocal in and out of a given mix.
You have two knobs under the label "Präsenz". The left knob controls the center frequency of
the band, and may go from as low as 300 Hz (it picks where the Low Band stops) to as high
as 8 kHz. This goes way beyond the usual range of this kind of band, therefore you have an
extra dose of flexibility. Typically, this band is used between 800 Hz and 2 kHz, with 1.5 kHz
as the default value.
The values are continuous, but you can switch on the "Stepped Controls" button in the Lower
Toolbar and have the knob "jump" between the fixed values marked on the panel.
The right knob controls the amount of boost or cut (attenuation) of this EQ band. As this is the
main EQ band, you have to be very careful. That's why this band only goes from -8 dB up to
8 dB. Default value is 0, as with the other band (no boost or attenuation of the frequencies
in the band's range).
4.2.3.5. High Shelf Gain
This knob controls the boost/attenuation of the high frequency band of the EQ. The range,
set globally for all frequencies, is very soft and broad. The frequency is switchable, with a
choice of three values.
The gain knob allows for continuous values, contrary to the original behavior. For an extra
touch of realism, you can switch on the "Stepped Controls" button in the Lower Toolbar and
have the knob "jump" to fixed values.
Gain changes between -15 dB and 15 dB. By default, it's 0 (no boost or attenuation).
4.2.3.6. High Shelf Frequency switch
This switch controls the center frequency for the High Frequency band. As this is a switch,
the frequencies are not continuous. We can only select between 5 kHz, 10 kHz and 30 kHz.
By default, the HF band is set to 5 kHz.
Arturia - User Manual EQ SITRAL-295 - EQ SITRAL-295 CONTROL PANEL 20