Lucid AD9624, User Manual

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7
To enable the floating balanced output:
1. Remove the cover from the DA9624 by removing
the four top cover screws and the 2 screws on each
side of the unit.
2. Remove the cover and set it aside.
3. Locate the jumpers (about an inch from the rear of
the unit and between the two analog output XLR
connections).
4. For floating balanced output, the four jumpers
should be installed at positions 2-3 (four places). For
the default differential balanced output, install the
four jumpers at positions 1-2.
5. Replace the cover and reinstall the cover screws. It
may be handy to add a piece of suitably marked tape
to the unit indicating the jumper status.
When using the DA9624 with unbalanced inputs, it is extremely important that the conversion
to an unbalanced signal occur at the DA9624 rather than at the receiving device.
This output configuration decreases the dynamic range by 1dB.
Digital Input Connections
It is not necessary to connect to all of these connectors at any given time. The connectors used
or not used depend on your specific application.
Connect the AES/EBU input connectors to AES/EBU digital audio sources.
Connect the S/PDIF connectors to consumer audio digital inputs. Use the TOSLINK optical
connector for S/PDIF optical signals.
Select the appropriate input connector via the front panel switch.
Level Setting
The front panel level control determines the output level of the DA9624. The meters monitor
the analog outputs of the unit. Set the level control so that the output level remains below
clipping. Note that it is possible for the input of the receiving device to clip before the
DA9624’s output do. In most cases, reducing the gain setting of the receiving (downstream)
device doesn’t help, as the source of the overload is ahead of the gain control. The proper
course of action here is to reduce the output level of the DA9624 by reducing the setting of the
Output Level control.
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