Behringer GI100 Manual - Page 10

Picking up a bass guitar or keyboard signal, outboard processors - direct box

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10 ULTRA-G GI100 User Manual 2.2 Picking up a bass guitar or keyboard signal Monitor Amp DIRECT LINK Bass Amp DIRECT LINK VIRTUAL 4 x 12" CAB IN Simulation ON/OFF OUT Mic Inputs OUT IN VIRTUAL 4 x 12" CAB Simulation ON/OFF Fig. 2.2: 1. Bass guitar ➟ GI100 ➟ Amplifier/Console 2. Keyboard ➟ GI100 ➟ Amplifier/Console This diagram illustrates two standard DI applications. The signal going to the amp via the DIRECT LINK is unaffected; it is simply picked up and additionally fed, as a balanced, low-impedance signal, to the mic inputs of the mixing console. This is particularly advantageous with bass guitars, since microphones that reproduce high-energy bass frequencies in a halfway linear manner are rare-and expensive. When using effects or other outboard processors, these should be connected in front of the ULTRA-G in the signal path, so that its output includes these signals. Few keyboards have balanced outputs. Here, a quality DI box such as the GI100 is indispensable to ensure clean signals, especially when using long cables.

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10
ULTRA-G GI100 User Manual
2.2
Picking up a bass guitar or keyboard signal
VIRTUAL 4 x 12" CAB
Simulation ON/OFF
VIRTUAL 4 x 12" CAB
Simulation ON/OFF
Monitor Amp
Bass Amp
DIRECT LINK
DIRECT LINK
IN
IN
OUT
OUT
Mic Inputs
Fig. 2.2: 1. Bass guitar
➟
GI100
➟
Amplifier/Console
2. Keyboard
➟
GI100
➟
Amplifier/Console
This diagram illustrates two standard DI applications. The signal going to the amp via
the DIRECT LINK is unaffected; it is simply picked up and additionally fed, as a balanced,
low-impedance signal, to the mic inputs of the mixing console. This is particularly
advantageous with bass guitars, since microphones that reproduce high-energy bass
frequencies in a halfway linear manner are rare—and expensive. When using effects or other
outboard processors, these should be connected in front of the ULTRA-G in the signal path,
so that its output includes these signals.
Few keyboards have balanced outputs. Here, a quality DI box such as the GI100 is indispensable
to ensure clean signals, especially when using long cables.