CONTROLS AND SETTINGS
Front Panel
1. LED Indicators
With two colors and 8 segments; the LED
indicators visually represent the output level of
the equalizer. The clip button indicates when the
input (or output, as designated by the I/O Meter
button) signal is too high, and is dynamically
clipped as to protect the internal circuitry.
2. Range Button
Selects maximum cut or boost for the equalizer
of either 6 dB or 12 dB, and the indicator will light
up to show you which level range you are using.
The 12 dB settings should be used when much
equalization is needed; the 6dB setting allows for
finer adjustments on the frequency levels.
3. EQ IN/OUT Switch
Push this button in to add the equalizer into the
signal path, push again to raise the button and
remove the equalizer section from the signal
path. This switch does not defeat the low or high
cut filters.
4. Input Level Control
Turn this knob to adjust the input level from -
dB to +15 dB.
5. I/O Meter Button
This button allows users to alternate the use of
the LED level meter between the input and output
signals. When released, the level meter will give
users a clear representation of the input signal,
whereas when the button is pushed in, the output
signal will then be analyzed instead.
6. Feedback Detection Button
Pushing this button activates the built-in feedback
detection system of he iA equalizer. Frequencies
with the potential for creating feedback are
indicated by illuminated LEDs on each frequency's
6
VR fader. Check the Feedback Control section
on page 8 for more details.
7. Low Cut Control
This knob enables a subsonic filter range from
10 Hz to 400 Hz. Its function is to "roll off" the
response below a given frequency to eliminate
subsonic interference like wind noise, stage
rumble, and microphone "pop". This function,
independent of EQ IN switch, is disabled when
set to the OFF position.
8. High Cut Control
This knob enables a super-to-ultra-sonic filter
range from 1.25 kHz to 20 kHz. Its function is to "roll
off" the response above the selected frequency to
eliminate high frequency interference, unwanted
noise and hiss that may be present at high
frequencies. This function, independent of EQ IN
switch, is disabled when set to the OFF position.
9. Limiter Control
This control is used to select the threshold of the
iA equalizer's built-in limiter. It allows users to
∞
adjust the limiter from -20 to +10 dBu, or turn it
off all together.
10. Link Button
By pushing this button, any settings made to
channel 1 are applied to channel 2. This is helpful
so that when stereo signals are sent through
channels 1 and 2 of the iA equalizer it is not
necessary to set both channels' faders.
11. Faders
Smooth operation with center detent and accurate
flat setting, these faders allow users to boost or
cut their signal's various frequencies by up to 12
dB. If the Range button is pushed in, the level of
boost and cut is then 6 dB.
iA231F / iA231FD