Cary Audio Design A 306 - Manual (Page 8)

Rear Panel
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BALANCED INPUTS:
* Accepts right-channel and left-channel balanced signals from the associated preamplifier
with balanced outputs.
SINGLE-ENDED INPUTS:
* Accepts right-channel and left-channel (RCA) inputs from preamplifier. These signals
are converted to balanced signals upon entering the chassis and processed as balanced
signals thereafter. One pair RCA connector is available.
INPUT SWITCH:
* Use this switch to select the input use the BALANCED inputs or SINGLE-ENDED
inputs.
* The pin assignments of these XLR-type female input are:
Pin 1: Signal ground
Pin 2: Signal + (non-inverting)
Pin 3: Signal - (inverting)
Connector ground lug: chassis ground
Refer to the operating manuals of your balanced-output preamplifier
to verify that the pin assignments of their output connectors correspond to
the A 306. If not, wire the cable so that the appropriate input pin connects
to the equivalent output pin.
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