TC Electronic C400XL User Manual page 15

Type 3
Unwanted hum and noise can be introduced if you connect the outputs of C400XL to unbalanced
equipment using a standard XLR to TRS (type 3a). If this is the case it is most likely because the
ring-connection is floating/unconnected inside the device you are connecting to.
In that case use an XLR to TS cable (type 3b) where ring (pin 3 connection) is connected to the
sleeve. You can also use a TRS to TS adapter that connects ring to sleeve.
Type 3a
Type 3b
CABLES
PIN 2
PIN 3
PIN 1
PIN 2
PIN 3
PIN 1
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