QSC Audio PL218A, PL230A, PL236A, PL224A user manual Connections Inputs

CONNECTIONS: INPUTS

INPUTS

Each channel has active balanced "Euro-style" terminal block and XLR jacks wired in parallel. The input impedance is 12 kOhm balanced or 6 kOhm unbalanced. Each channel's input jacks are wired in parallel. Unused input jacks may be daisy-chained to additional amplifiers if desired.

Balanced connection is recommended. Balanced signals are less prone to AC hum, but unbalanced signals can be suitable for short cable runs. The signal source's output impedance should be less than 600 Ohms to avoid high frequency loss in long cables.

Balanced inputs: Use the XLR or the detachable terminal blocks. Proper connection for balanced input options are shown at right.

XLR connection•Balanced•Symétrique•Symmetrisch•Balanceado

jumper 1 to 3

Unbalanced inputs: Connect the unused side of the balanced input to ground, as shown in the illustrations for unbalanced connections, right.

XLR unbalanced • XLR asymêtrique • unsymetrische XLR • XLR no balanceado

shield

Terminal block balanced • bloc détachable symêtrique • symetrische Anschlußstecker • Entrada de bloque balanceado

shield

jumper

Terminal block unbalanced • bloc détachable asymêtrique • unsymetrische Anschlußstecker • Entrada de bloque no balanceado

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