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5
Connections
Switch off power of all units to be connected before you connect the Auto
Dynamic De-Esser.
The Auto Dynamic De-Esser is fitted with both XLR-connectors and TRS
stereo jacks for balanced operation, though the jacks may be used with
unbalanced connections simply by plugging in mono jack-plugs. The level
difference that normally occurs when a balanced input or output is used
unbalanced is automatically compensated for.
Should the need arise to use the XLR connectors in an unbalanced system,
pin 3 of the XLRs should be grounded.Inserting a mono jack also unbalances
the XLRs.
Both output stages operate in parallel, so it is possible to connect two diffe-
rent destination units simultaneously, for example to record to two different
media at the same time or split the output between a mixer and effects
processor. However, only one type of input (jack or XLR) should be
connected at a time – the Auto Dynamic De-Esser is not intended to be used
as a mixer!
To ensure optimal signal quality, SPL has developed a new hybrid-compo-
nent balanced input/output stage using all laser-trimmed resistors with a
tolerance of 0.01%. This approach has resulted in an exceptionally high
CCMR (common mode rejection): 100dB at 1kHz and 80dB at 10kHz. As a
precaution, before connecting the Auto Dynamic De-Esser switch off power
of the unit and of all units to be connected.
Rear panel
Balanced XLR and TRS stereo jack I/Os (+6dB)
Voltage selector:230 V/50Hz or 115 V/60Hz
GND Lift switch, CSA/UL approved 3-pole power plug
2
1
3
1
2
3
Pin wiring: XLR output
1 = GND, 2 = hot (+), 3 = cold (-)
Pin wiring: Stereo Jack Connector
Tip = hot (+), Ring = cold (-), Sleeve = GND
Pin wiring: XLR input
1 = GND, 2 = hot (+), 3 = cold (-)