Setting Input Levels - Orban OPTIMOD 5750 Operating Manual

3-19
Orban 5750 Technical Manual Operation

SETTING INPUT LEVELS

Navigate to the I/O Settings tab and open it. Select the INPUT tab on the right column. Here you will see options
for input source (Digital or Analog) and the input reference level for both. This is not a traditional gain trim, you
are setting the input gain reference level. Be certain to leave enough headroom when setting this so it is
properly driven by equipment before it.
The reference level VU and PPM (Peak) settings track each other with an offset of 7 dB. This compensates for
the typical indications with program material of a VU meter versus the higher indications on a PPM.
This step sets the center of the 5750's gain reduction range to the level to which your studio operators peak
their program material on the studio meters. This assures that the 5750's processing presets will operate in
their preferred range. You may adjust this level with a standard reference/line-up level tone from your studio
or with program material.
Note that in this step, you are calibrating to the normal indication of the studio meters; this is quite different
from the actual peak level.