Operation
9
main menu – SETUP -> GAINS
The analog inputs of the A32 can be set to different sensitivities. You
can choose between three reference levels: +4dBu, +13dBu and
+20dBu. Using the DSP, you can additionally set the reference levels
from -8dBu to +20dBu in 1 dB steps. The DSP always calculates the
optimum configuration. For example, if you set +12dBu, the analog
reference will be set to +13dBu and the signal will be amplified by 1dB,
because it is only 12dBu.
The number on top of the fader shows the maximum dBu level, which
the input is able to handle. When the fader is set to 20, as in the
picture above, the input can handle a maximum input level of +20dBu.
Avoid exceeding this maximum level to prevent digital clipping.
In addition, you can see the levels of the analog inputs and so easily set
the correct gain. The dB scale of these levels is found on the right hand
side of the screens.
The minimum value -8dBu corresponds
(approximately) to the reference level of -10dBV used
by consumer devices, like CD-players for example.
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