Allen&Heath WZ 20S USER GUIDE - Manual (Page 14)

14 WZ20S User Guide
Connecting the Stereo Channel
B
L /
R
IN
M
A
R
L
IN
19-20
INPUT A This provides a pair of RCA phono sockets for connection to stereo sources
such as CD players, MiniDisc and record decks. The inputs are unbalanced and can
accept line levels signals from as low as –20dBu to a high +10dBu. The level is matched
to the console using the front panel GAIN A control. The signal can be mixed with Input
B if required by pressing both A and B ON switches together. An optional RIAA card may
be fitted internally for direct connection to a magnetic turntable cartridge. Refer to your
ALLEN & HEATH agent for details.
INPUT B This provides a pair of TRS jack sockets for connection to any line level
source. For stereo sources plug into both the L/M and R sockets. For mono sources
plug into just the L/M socket leaving the R socket unplugged. In this case the signal is
normalled through the R socket to the right channel. The inputs are balanced to provide
interference rejection when connecting to 3 wire balanced sources using long cables.
The socket automatically grounds the cold (-) input to accept unbalanced 2 wire TS jack
sources. To connect an unbalanced source using a TRS jack you should link ring to
sleeve in the plug as shown above. The inputs can accept line level signals from as low
as –20dBu to a high +10dBu. The level is matched to the console using the front panel
GAIN B control. The signal can be mixed with Input A if required by pressing both A and
B ON switches together.
Connecting the External Inputs
R
EXT IN
2
L
EXT IN 1 (2) This provides a pair of TRS jack sockets for connection to line level sources
such as effects, 2-track or monitor returns. A tamperproof front panel switch determines
whether the signal feeds MIX 1(2) or just the monitor select switch bank. For stereo
sources plug into both the L/M and R sockets. For mono sources plug into just the L
socket leaving the R socket unplugged. In this case the signal is normalled through the R
socket to the right channel. The inputs are balanced to provide interference rejection
when connecting to 3 wire balanced sources using long cables. The socket automatically
grounds the cold (-) input to accept unbalanced 2 wire TS jack sources. To connect an
unbalanced source using a TRS jack you should link ring to sleeve in the plug as shown
above. The operating level is –10dBV but may be set for +4dBu by changing an internal
link option.