Sound Performance Lab Classic Vitalizer 9215 - Manual (Page 5)

Before connecting the VITALIZER or any other equipment turn off
all power. Adjust the voltage setting on the back so that it corre-
sponds with the local power conditions.
The balanced XLR input connectors are Neutrik XLRs wired pin 2
hot. The unbalanced mono-jacks are wired tip hot. Should the
need arise to use the XLR unit in an unbalanced system, pin 3 of
both the input and output connectors should be grounded.
The following graph shows the correct wiring for connecting
unbalanced signals to the balanced XLR connectors:
Both output stages operate in parallel, so it is possible to connect
two different 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 VITALIZER
is not intended to be used as a mixer!
To ensure optimal signal quality, SPL has developed a new
hybrid-component 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 rejec-
tion); 100 dB at 1kHz and 80 dB at 10 kHz.
As a precaution, before connecting the VITALIZER switch off the
power to the unit and to all connected units.
Connections
5
®
Pin wiring Jack connectors
Tip = hot (+), Ring = cold (-), Schaft = GND
1 2 3
Pin-wiring XLR connectors
1 = GND, 2 = hot (+), 3 = cold (-)