Classe Audio C-601 Owner's Manual page 7

BALANCED, TAPE, AND REGULAR INPUTS
The BALANCED INPUTS are true differential high level inputs, wired as follows:
The Balanced inputs may be used with CD players that have a balance output, or any other high
level, balanced source.
The TAPE IN of the C-601 should be connected to the LINE OUT or TAPE OUT of the tape
deck. (See FRONT PANEL CONTROLS: TAPE SWITCH.)
The Regular inputs may be used with any high level sources (REG 1 may also be used with the
optional Classé Internal Phono Feature.)
PIN 1: GROUND
PIN 2: POSITIVE (NON-INVERTED) SIGNAL
PIN 3: NEGATIVE (INVERTED) SIGNAL
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