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User Manual – ALP221e
Analog input gain settings (this section is not available on ALP221e)
The first screen capture on the left relates to the ALP222e, and the second
one just below relates to the ALP222e-Mic which features a Line/Mic level
selector.
The analog input gain can be adjusted thanks to the potentiometer at the
top of the analog input channel strip. Note that if the inputs are displayed
as a stereo input, the gain adjustment applies to the left and right
channels.
There are three ways of adjusting the input gain.
1) Click on the round potentiometer without releasing and move the
2) Press the Ctrl key without releasing and then click on the
3) Click on the gain value displayed below the potentiometer, write and
Double click on the potentiometer to reset the analog gain to 0 dB.
For ALP222e and ALP222e-Mic in LINE input mode, analog input gain
values range from -87 dB to +40 dB, in steps of 0.5 dB.
For ALP222e-Mic in Mic input mode, analog input gain values range from 0
dB to +65 dB, in steps of 0.5 dB.
Here are a few examples of input level alignment:
ALP222e / ALP222e-Mic in LINE
input mode
Gain=0 dB: +24 dBu->0 dBfs.
Gain=+ 10 dB: +14 dBu->0 dBfs
Gain=+ 39 dB: -15 dBu->0 dBfs
Gain=-10 dB: +24 dBu->-10 dBfs
Vu-meters
Each Vu-meter displays the input signal level in dBfs, before or after the
digital gain is applied..
Double click on the blue radio button on the bottom left of the vu-meter
to display the Pre/Post digital gain selection. The radio button appearance
depends on the selected mode
Digital gain settings
Digital gains are available for all the input and output audio streams, and
mouse left or right to decrease and increase the gain respectively, in
steps of 0.5 dB.
potentiometer with the mouse. The gain can be adjusted in steps of 1
dB with the mouse wheel as long as the Ctrl key remains pressed.
enter the new value.
: Pre-fader
ALP222e-Mic in Mic input mode
Gain=+ 65 dB: -55 dBu->0 dBfs.
Gain=+ 30 dB: -20 dBu->0dBfs
Gain=+ 10 dB: 0 dBu->0 dBfs
Gain=+ 0 dB: +10 dBu->0 dBfs
: Post-fader
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