Specifications, Introduction, 1 general mixing console functions – Behringer Eurorack Pro RX1202FX User Manual

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EURORACK PRO RX1202FX User Manual

1. Introduction

With 8 phantom-powered microphone inputs as well as 4 high-headroom line

inputs, the RX1202FX comprises a total of 12 channels. All channels come with

60-mm faders and the extremely musical 2-band EQ, the clip LEDs, as well

as the 2 aux sends enable an uncompromising functionality of the console.

An integrated power supply guarantees optimal flexibility through worldwide

independence of any mains connection. Additionally, it offers an absolutely

noiseless audio signal as well as an outstanding transient response by minimal

power consumption. With first-class “Invisible“ Mic Preamps, the ultra-low

noise circuitry, the 24-bit effects processor as well as the separate control room,

headphones and CD/tape outputs, the RX1202FX has all the features that also

distinguish our UB mixers.
As sub-mixer, monitor mixer or as line mixer for audio/video installations,

the RX1202FX is the first choice for demanding fixed installations and mobile use.

IMP “INVISIBLE” MIC PREAMP
The microphone channels are fitted with BEHRINGER’s premium quality

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 distortion-free 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

They enable full utilization of the greatly extended dynamic range of your

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

MULTI-EFFECTS PROCESSOR
In addition, the RX1202FX offers an effects processor equipped with 24-bit

A/D and D/A converters. The FX processor puts at your disposal 100 presets

with first-class room simulations, delay and modulation effects, and many

multi-effects in outstanding audio quality.

!

!

Caution!

We would like to inform you that high volume can damage your
hearing and/or the headphones or loudspeakers. Before turning on
the device, please move the MAIN MIX fader of the main section all
the way down. Always take care to keep an appropriate volume level.

1.1 General mixing console functions

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.

Signal distribution:
Individual, processed signals from the channel strips are compiled on busses

and are fed into the main section for further processing. Connections for

recording equipment, power amplifiers, headphones as well as CD/tape

connectors are available here. The mix is sent to the internal FX processors or

external effects processors via aux sends and returns. Similarly, a mix can be

created for the musicians on the stage (monitor mix).

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.

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