Introduction; Concept; Architecture - Behringer Eurorack MX1804X User Manual

EURORACK MX1804X

1. INTRODUCTION

Congratulations. In purchasing our EURORACK MX1804X you have acquired a mixer whose small size belies
its incredible versatility and audio performance. Your EURORACK is built to the same outstanding quality as
our top-of-the range console, the BEHRINGER EURODESK MX9000.
One of the outstanding features of the MX1804X is its integrated, digital 24-bit effects processor. We developed
an extremely compact module that provides the highly acclaimed VIRTUALIZER sound using the same
algorithms, 24-bit AD/DA converters, a 24-bit DSP and 46 kHz sampling rate. This means that 32 presets with
first-class room simulations, delay and modulation effects are at your disposal. Moreover the MX1804X possesses
an additional Alt 3-4 bus, a 7-band graphic equalizer and a choice of routing options which facilitate the work
with your MX1804X.
Later we will see how adding the BEHRINGER ULTRALINK PRO MX882 to your system can inexpensively
expand the capacity and flexibility of you mixing power even further. First of all, however, we want to take you
on a guided tour of your new rack-mounted console—the BEHRINGER EURORACK MX1804X.
We recommend that you experiment with your EURORACK away from the pressures of a recording session or
live concert, in order to get a feel for it. It is a musical instrument. Learn to play it well.
Most specialist subjects are not really all that difficult provided you understand the language used, and the
vocabulary of mixing is pretty straightforward. Nevertheless it is as well to be clear about what certain terms
mean. A "slot" in a recorder will always be referred to as a track, while that in a mixer will invariably be a
channel. We will attempt to be as unambiguous as possible with terms, since much confusion can arise from
sloppy definitions.
On an extra sheet you will find drawings showing the front and rear panel of your EURORACK respectively.
Always use this extra sheet, while studying the manual.
All functions will be numbered consistently throughout the manual, whether they be in the text or on an
illustration. Note that some functions are exactly the same for both mono and stereo channels (e.g. the aux
sends). In this case only the mono channel´s functions are numbered.

1.1 Concept

The configuration of the MX1804X is "18 into 4 (2+2) into 2". There are six mono channels, four stereo channels
and two additional stereo line inputs (aux and FX return). In addition there is a 2-track input routable to the main
mix. Every channel is always routed to the main mix unless the ALT 3-4 switch is pushed. In this case the
signal is sent to the Alt 3-4 bus instead. Alt 3-4 may be blended with the main mix at the control room output
via a switch. In addition to that the Alt 3-4 signal can be integrated in the main mix when you press the
ALT 3-4 TO MIX switch .

1.1.1 Architecture

Mono input channels
The channels 1 to 4 are mono, with a choice of balanced microphone or line inputs. The vintage-style high-
current discrete microphone preamps are of the same incredible quality as those found on the acclaimed
BEHRINGER EURODESK MX9000, while a large external power supply ensures low noise and superior transient
response at all times. Due to the inserts the mono channels offer a similar functionality as "big" consoles. The
insert points double up as direct outputs when wired to a normalized pair of in/out sockets on a standard
patchbay (see chapter 4.3 "Patchbay").
Stereo input channels
A further 8 line inputs on the MX1804X are configured as 4 balanced stereo input channels. These are ideal for
multitrack tape returns, or for accepting outputs from MIDI and other electronic instruments.
Channel outputs
A high-quality true-logarithmic 60-mm fader feeds the main mix or Alt 3-4 bus via the channel pan.
Aux/FX sends
There are two aux send buses on the MX1804X. The second one is called FX send and leads to the internal
multi-effects processor. But you can also use the FX send for external effects devices.
1. INTRODUCTION 7