Behringer Europack UB1204FX-Pro Owner's Manual

EURORACK UB1204FX-PRO/UB1204-PRO User Manual

This chapter describes the various control elements of your mixing console. 

All controls, switches and connectors will be discussed in detail.

Fig. 2.1: Connectors and controls of mic/line inputs 

MIC
Each mono input channel offers a balanced microphone input via the XLR 

connector and also features a switchable +48 V phantom power supply for 

condenser microphones.

LINE IN
Each mono input also features a balanced line input on a 1/4" connector. 

Unbalanced devices (mono jacks) can also be connected to these inputs.

LOW CUT
The mono channels of the mixing consoles have a high-slope LOW CUT filter for 

eliminating unwanted, low-frequency signal components (75 Hz, 18 dB/octave).

GAIN
Use the GAIN control to adjust the input gain. This control should always be 

turned fully counterclockwise whenever you connect or disconnect a signal 

source to one of the inputs.

Fig. 2.2: The equalizer of the input channels

All mono input channels include a 3-band equalizer. All bands provide boost or 

cut of up to 15 dB. In the central position, the equalizer is inactive.
The upper (HIGH) and the lower band (LOW) are shelving filters that increase 

or decrease all frequencies above or below their cut-off frequency. The cut-off 

frequencies of the upper and lower band are 12 kHz and 80 Hz respectively. 

The mid band is configured as a peak filter with a center frequency of 2.5 kHz.

Fig. 2.3: The AUX SEND controls in the channel strips

Aux sends take signals via a control from one or more channels and sum these 

signals to a so-called bus. This bus signal is sent to an aux send connector and 

then routed, for example, to an active monitor speaker or an external effects 

device. The return from an external effect can then be brought back into the 

console via the aux return connectors.
For situations which require effects processing, the aux sends are usually 

switched post-fader so that the effects volume in a channel corresponds to 

the position of the channel fader. If this were not the case, the effects signal 

of the channel would remain audible even when the fader is turned to zero. 

When setting up a monitor mix, the aux sends are generally switched to 

pre-fader; i.e. they operate independently of the position of the channel fader.
Both aux sends are mono, are sourced after the equalizer and offer up to 

+15 dB gain.

AUX 1 (MON)
In the UB1204FX-PRO, aux send 1 can be switched pre-fader and is thus 

particularly suitable for setting up monitor mixes. In the UB1204-PRO, the first 

aux send is labeled MON and is permanently switched pre-fader.