Page 13
15 PFL
When the PFL switch is pressed, a mono sum of the pre-fade signal is fed to the
headphones and L & R meters, where it replaces the normal Mix L/R or Mono signal.
The PFL/AFL ON LED on the master section illuminates to warn that the headphones
and the meters are now responding to the PFL/AFL selection and the PFL LED on the
input section lights to identify the active channel. This is a useful way of listening to any
required input signal without interrupting the main mix, for making adjustments or trac-
ing problems.
MASTER SECTION
16 BARGRAPH METERS
Two 12-segment, three-colour peak-reading bargraph meters provide visual moni-
toring of the levels of the Mix Left and Right, Mono or PFL/AFL signals.
The meters follow the source selection for the Phones (Mono, Mix or both). If any
PFL or AFL switch is activated the meters are switched to display the level of the select-
ed PFL or AFL signal.
17
MIX, MONO FADERS
The MIX and MONO Faders set the final level of the Mix and Mono outputs. Unity
gain is at the top of their travel.
Pre-fade INSERTS are provided for connection of external processing equipment
(e.g. Graphic EQ) if required.
18 MIX TO MONO
This switch routes the Left and Right Mix outputs to the Mono bus, allowing the
stereo bus to be used as two mono subgroups mixed down to a single output when
stereo is not required.
This facility is also a quick method of using the Mono bus to restore the output if a
fault occurs on external equipment (perhaps the power amplifiers or speakers) fed from
the stereo output of the mixer, or for reinforcing the stereo mix in the centre cluster of
large sound systems where the distance between left and right loudspeakers is consider-
able.
19 AUXILIARY MASTERS
Each of the Auxiliary Send busses is provided with a rotary MASTER LEVEL fader and
an AFL switch with indicating LED which monitors the final output
after
the fader.
AUX 2 and AUX 3 normally receive post-fade sends from the input channels, but
may be switched to pre-fade by pressing the respective PRE switch.
20 Headphone Monitoring
The source for the headphones output may be either the stereo Mix or Mono out-
puts or both, as selected by these switches. The meters also display the selected source.
When any PFL or AFL switch is pressed the selected signal replaces the normal
source for the headphones and meters, allowing the signal to be monitored in isolation.
The PFL LED illuminates to show that a PFL or AFL is active.
The PHONES control sets the level to the Phones jack.
21 PHONES JACK
The PHONES output is a 3-pole A gauge jack, suitable for headphones of 200
W
or
greater. 8
W
headphones are not recommended.
23
22
19
20
18
17
21
USERMAN.QXD 13/06/97 12:27 Page 13
All manuals and user guides at all-guides.com
