Applications - Behringer Eurodesk SX3282 User Manual

EURODESK SX3282 User Manual
It should be noted that patchbays should be placed one below
the other in such a way that the patch cords won't hang all over
the patchbays. In our example you don't have to span great
distances, for instance, to patch the dynamics and EQ's to the
insert paths.
9.5 Looming Problems
Loom wiring is an art unto itself, and it is worth taking time out
to get it right. First off, it is important to avoid earth loops (a
looped wire acts an aerial, picking up hum and electromagnetic
radiation). Think of a tree. Every part of that tree is connected
to every other part, but only by one route. That's how the total
earth picture for your entire studio should look. Don't take the
earth off your power cable plug to reduce audible 50 Hz mains
hum. Rather you should be looking at disconnecting the signal
screen somewhere (one or several audio cables).
It is good practice to ensure that all screens are commoned at the
patchbay, in which case all unearthed equipment would pick up
earth from this point via a single screen (more than one route =
an earth loop), while mains-earthed equipment would have all
screens cut at the equipment end.
Some quality equipment has an independent signal and mains
earth. In this case at least one screen should carry earth to the
equipment. Sometimes the only way to find out is "suck and see".
Take care to ensure that using the patchbay does not disturb the
studio's earth architecture. Always use short as possible patch
leads with the screen connected at both ends.
Having designed mains hum out of the system, make up your
cable looms from the patchbays outwards, and use cable ties,
flexible sheaths, multicores, etc. to keep the back of your racks
tidy.
10.

Applications

10.1 Keyboard Submixing
MIDI keyboard sub-mixing, live or in the studio, sequenced and/
or played. This is relatively simple to achieve. Simply use the
line inputs to mix stereo or mono outputs from your keyboards.
Subgrouping may be useful en route to the mix, e.g. to control the
level of drums versus music. Aux sends may be used either to
feed on-stage monitors, artists headphones or effects units. You
might want to use the stereo aux inputs for instruments with
built-in EQ, since there is no EQ on these inputs. Effects could
be brought back on any line input. The main L R output should
feed the front-of-house or main studio console.
10.2 Live Concert with Simultaneous
8-Track Recording
Here some or all mono channels are likely to be tied up with
stage mics. Carefully choose the right position so as to minimize
feedback. Try to keep the stage volume as low as possible, as
stage sound can cause a muddy front-of-house (FOH) sound.
Don't forget to notch out troublesome frequencies using a graphic
or parametric equalizer, or Feedback Destroyer (see the BEH-
RINGER FEEDBACK DESTROYER PRO DSP1124P and the
ULTRACURVE PRO DEQ2496 which does all of these and
more.)
The effects used in the FOH mix will not be recorded to multi-
track. These can be added later during mixdown.
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