Mono input channel, Auxes 1 & 2, Auxes 3 & 4 – Allen&Heath ZED-18 User Manual
Page 16: Pfl switch & pk! led, Mute switch, Fader
Allen & Heath 16 ZED-14, 18 & 24 User Guide
MONO INPUT CHANNEL
Auxes 1 & 2
Each of these controls sends a signal to an auxiliary bus. The signal is
sourced pre-fade which means that the level is independent of, and unaf-
fected by the fader. Auxes 1 & 2 are primarily used for foldback monitoring
purposes, as the fader does not affect the level. They can also be used as
feeds for recording and are available sources to the USB interface for this
purpose.
These sends are affected by the Mute switch, so muting the channel will also
mute the Aux sends.
The control varies the signal level to the bus from off (fully attenuated) to
+6dB, with unity gain at the arrow.
There are master level controls for the Aux 1 & 2 outputs situated in the
master section of the mixer.
Auxes 3 & 4
These are post-fade sends, which means that the signals are affected by the
channel fader. Primarily used for effects sends, the aux signal will reduce if
the fader is pulled down so keeping the correct proportion of the effect.
Muting the channel will also mute the Aux sends, and the send controls have
6dB gain fully clockwise.
There are no master level controls for Aux 3 & 4 outputs.
PAN
The pan control adjusts how the signal from the mono input channel is
shared between the left and right buses and subsequently the main stereo
outputs. Set to the mid position, equal amounts of signal are fed to left and
right, with pan set to L, none is sent to the Right bus.
PFL Switch & PK! LED
The PFL (Pre-Fade Listen) switch sends the channel signal to the PFL bus
and subsequently to the headphones and the main L R meters. Used for
checking the audio signal before raising the fader or un-muting the channel.
The PK! LED illuminates dimly to indicate the PFL switch is pressed, and
brightly to indicate the channel signal is within 5dB of clipping.
Mute Switch
This mutes or cuts the signal to the left & right buses and the Aux buses. A
rectangular LED illuminates to show the Mute switch is pressed.
Fader
The 100mm fader affects the level of the channel signal to the left & right
buses and Auxes 3 & 4. There is 10dB of gain at the top and the unity gain
position is marked by “0”.
OO
30
5
10
20
5
0
10
O
O
+6
AUX1
PRE
O
O
+6
AUX2
PRE
O
O
+6
AUX3
O
O
+6
AUX4
POST
L
R
PAN
=
PK !
PFL
MUTE
1
POST