Merging HORUS-AD8 User Manual page 15

Horus User Manual
Output Level calibration Example:
Assuming your operating Level is 21 dBu for 0 dBFS (typical of French Radio Broadcasters), you
should set the DIP Switches all OFF (DIP Switch positioned to the left, with respect to the picture
below) to set maximum Output Level to +24 dBu (since there is no 21 dBu hardware setting)
Once this is set and the DA modules are screwed back in place. Power up the Horus and go to the
Horus Setup Page>Module, select each D/A module for software calibration.
In this example case set the software attenuation to - 3 dB (see image below), so the overall result ends
up at 21 dBu for a Full Scale signal
How to connect the symmetrical line out to an unbalanced
Never attempt to short pin 3 (or pin 2) to Ground on Horus DA's output, when the Line Out driving
circuitry is symmetrical rather than floating.
Furthermore, as Unbalanced Inputs are traditionally more sensitive than Balanced Inputs, the - 6dB
Analog level achieved by using only one of the Horus symmetrical outputs, will offer better signal level
adaptation with less risks of overdriving the Unbalanced Inputs connected to the Horus.
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