CentreMIXX Owner’s Manual V1 © 2002 ARX Systems®
CentreMIXX Owner’s Manual V1 © 2002 ARX Systems®
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3
Introduction
Introduction
Introduction
Introduction
Introduction
Thank you for choosing this
ARX Centre
MIXX.
We hope you enjoy using this unique
product as much as we enjoyed creating it. As with all ARX equipment, it has undergone
extensive factory testing and ‘burn in’ before shipping. To ensure continued trouble free use,
please familiarise yourself with the contents of this manual before using.
About the Centre
About the Centre
About the Centre
About the Centre
About the Centre
MIXX
MIXX
MIXX
MIXX
MIXX
Innovation
Innovation
Innovation
Innovation
Innovation
Central loudspeaker clusters are now becoming a standard in installations and live sound
reinforcement systems. They provide the operator with the ability to centre the voice and
acoustic program material, while at the same time retaining the Stereo image across the Left
and Right Loudspeakers.
Until the advent of the ARX Centre
MIXX, only users of high end mixing consoles equipped
with a separate Centre Channel Output were able to easily derive a vocal dominated mono
Centre mix.
By using the ARX Centre
MIXX, even a very simple system can derive a Centre Channel from
a summed mono mix of Left and Right, with a L-R mix accuracy of 0.1 dB
However, where the Centre
MIXX really comes into its own is by feeding its Stereo Aux Input
with a line from the Vocal subgroup (for example) on the console. This allows you to
increase the overall vocal level in the Centre Cluster, putting the voice up front, just where
you want it.
On some mixing consoles the signal phase is often inverted relative to the Insert points,
Group and Master outputs. To allow for this, we’ve included a rear panel mounted Phase
Reverse switch on the Aux Inputs to ensure phase uniformity at all times.
Centre Channel Gain is adjustable from infinity through to +10 dB, relative to the Main Left
and Right inputs, which pass through the Centre
MIXX at Unity Gain.
Recommended position for the Centre
MIXX in the signal chain is immediately post console,
pre system EQ
In short, the ARX Centre
MIXX is the unique solution to today’s requirements for a Centre
Channel mix.
Using the Centre
Using the Centre
Using the Centre
Using the Centre
Using the Centre
MIXX
MIXX
MIXX
MIXX
MIXX
Setting up your Centre
MIXX is very straightforward and intuitive.
Firstly, connect the unit to AC power.
Please Note
that it is a dual voltage unit. It is
essential
that you check that the voltage on the fuseholder cover below the AC connector
on the rear of the chassis is set correctly before connecting it to AC power. See
Page 2
for
more details on this.
Getting started
Getting started
Getting started
Getting started
Getting started
1. Turn down all amplifiers and console masters
2. Connect the Left, Centre and Right XLR outputs of the Centre
MIXX to their respective
amplifiers (or system EQ, crossovers or whatever is next in the signal line to the speakers)
3. Connect the Left and Right Master outputs from the console to the Left and Right Master
Inputs of the Centre
MIXX . These will pass through the CentreMIXX at unity gain,
unaffected by the Centre
MIXX settings.
4. Turn up the amplifiers to their normal operating level.
5. Bring up the console Left and Right masters to their normal operating level
6. Adjust the level of the Centre Channel Master control (the Right knob) on the front panel
of the Centre
MIXX to match that of the Left and Right Masters
For a basic Centre Channel Mix setup that’s as far as you need to go. If there is no sound
from the Centre Channel, check that the Mute switches on the front of the Centre
MIXX are
not pushed in!
However you can go much further. One of the primary uses of a Centre channel is as a vocal
dominated channel, where you can pan the voice to the centre and spread the music over
the Left and Right channels. This is where the Centre
MIXX really comes into its own.
1. Take a line from the direct out of the Vocal subgroup on the console and connect it to the
Aux Input connector(s) of the Centre
MIXX (use the Left input if you’re not using stereo
vocal subgroups)
2. Adjust the level of the Aux Input control (the Left knob) of the CentreMIXX until you have
the desired amount of voice in the Centre Channel
3. Note that on some mixing consoles the signal phase might be inverted relative to the
Insert points, Group and Master outputs. If this is the case with your console, push in the
rear panel mounted Phase Reverse switch to flip the Aux Inputs phase 180º. If you are
unsure, try it anyway - one way will sound much better than the other.
Congratulations - you’ve just set up the Centre
MIXX system.
