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WZ20S
User Guide
Application Notes
The WZ20S is well suited to many high performance live, recording and installed sound
applications including multi source stereo mixing, dual output submixing, club systems,
low end broadcast, production mixing… and more. The following notes present
suggestions for these applications. Of course, you may find different or better ways to suit
the particular requirements of your application.
Mixing Many Stereo Sources
There are many situations where you need to mix multiple stereo sources for
example keyboards, MIDI synthesisers, voice modules, sound cards, samplers,
outboard mic preamps, effects processors, CD, vinyl, DAT, MiniDisc, new media
players and recorders, stereo recorded tracks.
Dual stereo inputs
You can connect two stereo sources to each channel and
switch between them or mix them together as required. Inputs A and B have
independent gain control so that the balance can be set as required. You do not
need to reset the gain each time you switch the inputs. You also have the
convenience of selecting either the RCA phono or TRS jack connections as
appropriate rather than using cable adapters.
External stereo inputs
The two additional EXT inputs increase the number of
stereo inputs to 18. You still have the four mono channels for microphone or
line level inputs. The EXT inputs are best used to return the processed signal
from effects devices such as reverb, or to plug in a submixer. Remember to
select the MIX1(2) routing switches.
Signal processing
All channels provide 4 band EQ for creative or corrective
equalisation. The six AUX sends provide plenty of outputs for effects, monitors
and special feeds. The effects can be returned to the EXT or dual stereo
channels. For example, two stereo reverbs could be combined on one stereo
channel. The mono channels and main outputs provide inserts for patching in
additional signal processors such as compressors.
Production and Recording
The number of inputs and processing power together with the sonic purity of
analog sound make the WZ20S well suited to professional recording and
program production.
Inputs
Connect up to 4 microphones and 16 stereo line sources plus 2 effects
returns. Up to 6 stereo channel A inputs can be optionally fitted with the internal
RIAA card for direct connection to record decks. For multitrack recording you
can connect up to 16 track returns to the 8 stereo channels. You can use either
mono or stereo channels to connect to outboard mic preamps, increasingly
common in the studio.
Outputs
The two stereo outputs can feed independent recording devices. This
is useful when recording translations and voiceovers. Use the MIX2 jack
outputs when connecting to low level devices. Set the EXT1(2) routing switches
to their up position when returning the 2-track outputs to the monitor select
bank.
Subgrouping
Select MIX1 to MIX2 to create a stereo subgroup for single
fader control and inserted processing. In this case use MIX2 as the main
output.
