Trafomatic Audio LARA, User Manual

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CONTROLS AND THEIR FUNCTIONS
REAR PANEL - POWER SUPPLY UNIT
The only control on the rear panel is the line voltage selector switch located next to the AC power
inlet (AC INPUT). This switch needs to be set so that the number displayed (115 or 230) corre -
sponds with the line voltage in your country.
REAR PANEL – PREAMPLIFIER UNIT
Grounding lug
(GND)
Threesingle-ended
RCA inputs (L1, L2 and L3)
Two pairs of balanced
XLR inputs (XLR1, XLR2)
One pair of balanced
XLR outputs (LINE OUTS)
Two switches
for reversing phase of the
output sig-
nal (PHASE)
Single-ended RCA outputs (LINE)
Stereo subwoofer
RCA outputs (SUB)
Output grounding lift switch (OUT GND LIFT):
in some configurations, grounding of the system
can configure so-called “ground loops”. In certain
situation, this causes increased hum in the system.
Ground lift switch is used to break the “ground loop”
while maintaining safety afforded by proper system
grounding. NOTE: never use the so called “cheater
plugs” to remove ground from the system, as it cre-
ates potentially hazardous conditions.
Power supply connector
The rear panel also hosts:
10
LARA - LINE LEVEL Preamplifier - U ser Manual
115/230V switch
AC Input socket
8 pin connector
Line outputs connectors
Line inputs connectors
Reverse phase switch
Output ground lift switch
Main ground terminal
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