+
Output
Pin 1
2
Pin 2 = (+) Signal
Pin 3 = (-) Signal
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Cable
1
Shield
(+) Signal + Hum
(-) Signal + Hum
3
RFI and Hum
Input
Ground
1
2
Positive
3
Negative
(+)Hum + Signal
(-)Hum + Signal
2 x Signal
= Signal + 6 dB