Behringer Europack UB1222FX-Pro User Manual

EURORACK UB1222FX-PRO User Manual

Congratulations! In purchasing the BEHRINGER EURORACK you have acquired a 

mixer whose small size belies its incredible versatility and audio performance.
The BEHRINGER EURORACK mixing console offers you premium-quality 

microphone preamplifiers with optional phantom power supply, balanced line 

inputs and the ability to connect external effects devices. Because of its extensive 

and carefully thought-out routing possibilities, your EURORACK lends itself 

equally to both live and studio use.

FBQ Feedback Detection System
The FBQ Feedback Detection System, integrated into the graphic equalizer, is one 

of the most outstanding characteristics of this mixing console. This ingenious 

circuitry lets you immediately recognize and eliminate feedback frequencies. 

The FBQ Feedback Detection System uses the LEDs in the frequency band faders 

of the graphic EQ to indicate the critical frequencies. This way, what once used to 

be a labor-intensive search for feedback frequencies is now an activity that even 

a child could master.

IMP “Invisible” Mic Preamp
The microphone channels are fitted with BEHRINGER’s brand new high-end IMP 

invisible mic preamps that boast the following features:

130 dB dynamic range for an incredible amount of headroom

a bandwidth ranging from below 10 Hz to over 200 kHz for crystal-clear 

reproduction of even the finest nuances

the extremely low-noise and distortionless circuitry gua rantees absolutely 

natural and transparent signal repro duction

they are perfectly matched to every conceivable micro phone with up to 

60 dB gain and +48 volt phantom power supply and

they enable full utilisation of the greatly extended dynamic range of your 

24-bit/192 kHz HD recorder, thereby main taining optimal audio quality

Additionally, your UB mixing console has an effects processor with 24-bit A/D 

and D/A converters included, which gives you 100 presets producing first-class 

reverb, delay and modulation effects plus numerous multi-effects in excellent 

audio quality.
The mixing consoles of the PRO series feature a state of the art, 

integrated switch-mode power supply. One of the great advantages is that 

(compared to conventional circuits) a switch-mode power supply adapts to mains 

voltages between 100 and 240 volts automatically. Furthermore, due to its much 

greater efficiency, it consumes much less energy than a conventional power 

supply unit.

A mixing console fulfils three main functions:

Signal processing: 
Preamplification
Microphones convert sound waves into voltage that has to be amplified 

several-fold; then, this voltage is turned into sound that is reproduced 

in a loudspeaker. Because micro phone capsules are very delicate in their 

construction, output voltage is very low and therefore susceptible to 

interference. Therefore, mic signal voltage is amplified directly at the mixer 

input to a higher signal level that is less prone to interference. This higher, 

interference-safe signal level has to be achieved through amplification 

using an amplifier of the highest quality in order to amplify the signal 

and add as little noise to it as possible. The IMP “Invisible” Mic Preamp 

performs this role beautifully, leaving no traces of noise or sound coloration. 

Interference that could take place at the preamplification level could affect 

signal quality and purity, and would then be passed on to all other devices, 

resulting in inaccurate sounding program during recording or playback.
Level-setting
Signals fed into the mixer using a DI-box (Direct Injection) or the output of a 

sound card or a keyboard, often have to be adjusted to the operating level of 

your mixing console.
Frequency response correction
Using the equalizers found in each channel strip, you can simply, quickly and 

effectively adjust the way a signal sounds.
Effects mixing
In addition to the effects processor contained in your mixer, using the 

insert connectors on the mono channels and both aux busses lets you insert 

additional signal processors into your signal path.

Signal distribution: 
Individual signals adjusted at each channel strip are laid out at the aux 

sends and returns, and are either fed into external effects processors or fed 

back to the internal effects processor. Then, the signals are brought back 

into the main mix either via the aux return connectors or via direct internal 

wiring. The mix for the on-stage musicians is also created using the aux 

sends (monitor mix). Similarly, for example, signals for recording equipment, 

power ampli fiers, headphones and 2-track outputs can also be taken.

Mix: 
All other mixing console functions fall under this vital category. Creating a 

mix means primarily adjusting the volume levels of individual instruments 

and voices to one another as well as giving them the appropriate weight 

within the overall frequency spectrum. Likewise, you’ll have to sensibly 

spread individual voices across the stereo image of a signal. At the end of 

this process, adjusting the level of the entire mix to other equipment in the 

signal path is required (e. g. recorder/crossover/amplifier).

The interface of BEHRINGER mixing consoles is optimized for these tasks, 

enabling you to easily keep track of the signal path.