Behringer Ultra-G GI100 Owner's Manual download pdf (Page 14)

14 ULTRA-G GI100 User Manual

2.3 Converting a microphone signal from high-impedance

unbalanced to low-impedancebalanced

Many inexpensive microphones have unbalanced high-impedance outputs. Withthe ULTRA-G,

these microphones can be used in spite of long cable runs without the danger of hum or

other interference. Simply insert the GI100 between the microphone and the console. For this

application, you will most likely want to switch the VIRTUAL CAB speaker simulation o.

2.4 Picking up a signal from a loudspeakeroutput

There are times when picking up a signal after amplier processing is desirable to achieve a

certain sound, but no direct out is available. Thanks to the GI100’s two -20 dB PAD switches,

you can feed a console from the loudspeaker output of an amplier with a power rating of up

to 3,000 Watts (4 Ohm) without overloading the ULTRA-G. When using a tube amp, be sure to

connect a speaker or other impedance load to the DIRECT LINK output. We recommend using

the VIRTUALCAB speaker simulation in these applications, when signals from electricguitars

are transmitted.

+ Red or positive post

- Black or negative post

Fig. 2.3: Connection to an amplier’s output

◊ Before connection to a loudspeaker output, always make sure that the GND

LIFT switch is activated (depressed) to prevent accidental short-circuiting of the

amplifier output. The metal casing of the GI100 should not have direct contact with

other equipment. The tip of the output socket should be connected to the positive

(red) loudspeaker pole.

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Behringer Ultra-G GI100 Owner's Manual Page 14