PreSonus AudioBox 1818VSL - Manual (Page 35)

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Owner’s Manual
Ov
er
view
Hook
up
Connec
ting
to
a
Comput
er
Tut
orials
Technical Informa
tion
Tr
oubleshooting and
W
arr
an
ty
Sof
tw
ar
e: V
irtual
StudioLiv
e
AB1818VSL Remot
e,
and S
tudio O
ne Ar
tist
Software: Virtual StudioLive, AB1818VSL Remote, & Studio One Artist 4
Sof
tw
ar
e: V
irtual
StudioLiv
e
AB1818VSL Remot
e,
and S
tudio O
ne Ar
tist
Virtual StudioLive 4.1
Low EQ Frequency Control Sets the Center Frequency for the Low EQ Band.
The center frequency is the middle of the passband (the mean) between
the lower and upper cutoff frequencies that define the limits of the band.
You can adjust the center frequency from 36 to 465 Hz.
Low EQ Gain Control Sets the Gain Attenuation or Boost of the Center Frequency.
This control sets the gain cut or boost at the center frequency for the
Low band. The level of the center frequency can be set between -15 and
+15 dB.
Low Shelf EQ Button Turns On the Low Shelving EQ for the Selected Input or Output Bus.
When the Shelf button is not engaged, the Low band is semi-parametric.
Enabling the Shelf button turns the Low band into a low shelving EQ that
alters, by a fixed amount, a band of low frequencies at and below a
user-selected shelving frequency.
Power User Tip: A low shelving EQ is like a bass-control knob on a consumer audio
device. In this mode, the Center Frequency control selects the shelving frequency.
Mid EQ On/Off Button Activates Controls for the Mid EQ for the Selected Input or Bus.
This button activates the controls for the equalizer’s
Mid band for the selected input or output. The button
will illuminate to indicate control is active.
The Mid EQ band is available for all input and output buses.
Mid EQ Frequency Control Sets the Center Frequency of the Mid EQ.
The center frequency is the middle of the passband (the mean) between
the lower and upper cutoff frequencies that define the limits of the band.
You can adjust the center frequency from 380 Hz to 5 kHz.
Mid EQ Gain Control Sets the Gain Attenuation or Boost of the Center Frequency of the Mid
Band.
This control sets the Gain cut or boost at the center frequency of the Mid
band. The level of the center frequency can be set between -15 and
+15 dB.
Mid Hi Q Button Enables a Narrow Bandwidth for the Mid Band EQ on the Selected
Input or Bus.
Q is the ratio of the EQ band’s center frequency to its bandwidth.
With a constant center frequency, higher Q values indicate a narrower
bandwidth, so Q is often equated with bandwidth. By default, the Q is
set to a value of 0.55. When the Hi Q button is engaged, the Q setting will
be increased to 2.0, thus narrowing the bandwidth to provide more
precise control.