Electro-Voice TG5, Owner'S Manual

Page: 14 / 148

TOUR GRADE SERIES
14 Owner’s Manual
2.7 Indication of the Operation Mode
Two LEDs on the power amp’s front panel indicate the currently selected mode of operation. The
PARALLEL-LED lights yellow, when the ROUTING switch is set to PARALLEL. The PARALLEL LED does
not light, when the switch is set to DUAL. The BRIDGED LED lights yellow, when the MODE switch is set
to BRIDGED. The BRIDGED LED does not light, when the switch is set to NORMAL.
2.8 Selecting the Mode Of Operation
ROUTING
The ROUTING switch on the power amp’s rear panel defines how the audio inputs handle the input
signals.
DUAL
In DUAL mode, the two channels of the power amplifier work independent from each other. This mode of
operation is being used for all 2-channel applications, like stereo or Bi-Amp (active) operation. Using the
input level controls on the power amp’s front panel or an optionally available remote control module and
IRIS-Net™ allows independently adjusting the channels’ amplification.
PARALLEL
In PARALLEL mode, the inputs of channel A and channel B are directly electrically linked. The audio signal
has to be applied to the input connectors (XLR or Phoenix) of channel A. Using the input level controls or
IRIS-Net™ to independently control the amplification of the two channels is still possible because only the
channels’ inputs are linked. PARALLEL operation is the mode of choice, whenever the same input signal
drives multiple power amp channels of a large system installation, e.g. when driving massive bass arrays.
Illustration 2.7: Audio signal applied to both input connectors in DUAL mode
Illustration 2.8: Audio signal applied to input connector A in PARALLEL mode
CAUTION:
In PARALLEL mode, the input signal has to be fed to input channel A only.