Unbalanced Inputs; Kw181 - QSC KW181 User Manual

Unbalanced Inputs

Connect to the plug as shown. If a 3 conductor (TRS) plug is used to connect an unbalanced source, Pin 3 and pin 1 must be connected with a jumper
as shown.
Unbalanced Inputs XLR Connector

KW181

The KW181 is designed to accept line level inputs connected either by male XLR or ¼" phone (TS or TRS) jack. If signal is connected to both Channel
A and Channel B, they are summed together. The gain of the summed signal is then controlled using the GAIN knob. This affects the amount of signal
sent to the amplifier and then to the loudspeaker components.
1. Channel A LINE IN Combination
XLR-M and ¼" Phone Jack
2. Channel B LINE IN Combination
XLR-M and ¼" Phone Jack
3. Green SIGNAL LED
4. Channel A and B Mixed GAIN Knob
The green SIGNAL LED illuminates when a signal is present at either input, regardless of the amount of gain as set by the GAIN knob. If the LED does
not illuminate, the input is not receiving any signal, or the level of the signal is too low. Check all connections and the status of the device delivering
the signal.
1 = Shield (ground)
2 = Plus (+)
3 = Minus (-)
1
13
Unbalanced Inputs ¼" Phone Jack Connector
Ground
—
Inverting Input
+
Non-inverting Input
2
3
4
EN