Marani CLP-260 User Manual page 28

In order to use properly the indications of the Input Level Meters, it is
necessary to notice that the Input level to the CLP260 it is not
considerable an "absolute" information, due to the fact that before the A/D
converter, the absolute Input Level can be "adjusted" by the analog
potentiometer "Input Level".
For this reason, the meters of the Input Level Display on the LCD are
intended to show what's the Input Signal Level detected by the DSP after
the A/D conversion, considering as 0dBu the Maximum Input accepted
and converted by the A/D.
On the base of the above, the following table is providing the relation
between the Input Level meters and the Signal Level in the digital
domain, before the CLP260 processes, assuming not clipped the Signal
after the A/D.
Therefore it is important, in order to have reasonable indications from the
Input Level meters, to make sure the Input signal isn't clipped.
Here we remind that the Input Signal Clip is occurring when the Absolute
Input Signal is exceeding the +15dBu (Clip on the Op Amps before the
A/D converter), or when the Red Clip led is turning On.
Setting then the CLP260 in a "0dBu Path" condition (see the introduction
for the 0dBu Path definition/setting), the following table show the relation
between the Input Level Meters and the absolute Input Level after the A/D
converter and the before the CLP260 processes.
Referring to the following picture
The Table here below is showing then the relation between the Input
Level Meters and the absolute Input Level after the A/D converter and the
before the CLP260 processes.
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