Formula Sound FF-4.2L, User Manual

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There is also an insert in the master output stage on a pair of ¼” jack sockets, the
insert is enabled by a switch marked INSERT.
Note the send path is always active, the insert switch bringing in the return path.
Booth output
The booth output is on a pair of balanced XLR connectors; there is a 12 LED stereo
meter and volume control labelled BOOTH.
There is a MONO select switch that sums the booth left and right to mono. There is a
PAN control that operates in stereo mode, with MONO selected the PAN pot has no
effect.
AUX 1 and AUX 2
The AUX 1 contains a summed signal of each channel with AUX 1 selected, the level
of the summed AUX 1 signal is adjusted by the volume control marked AUX 1. The
AUX 1 signal is balanced stereo on a pair of ¼” jack sockets. AUX 2 operates in the
same way as AUX 1.
ZONE output
A balanced stereo zone output is provided on a 6 pin rectangular connector, the zone
output is controlled by a remote panel (not included) that connects to an adjacent 3
pin rectangular connector.
Balanced Zone output on the 6 way connector, left pin 1 + pin 2 0V/grnd Pin 3 -,
right pin 4 + pin5 0V/grnd pin 6 -.
The remote panel (not included) may be located up to 30 metres from the mixer and
allows the zone volume to be controlled entirely separately.
Remote panel pin 3 is 0V/grnd, pin 2 and 1 connect to the wiper of the pot providing
the volume control.
Crossfader
The crossfader has signals assigned to it by the XFA and XFB controls on input
channels 3 – 4. If multiple XFA and/or XFB switches are selected then those signals
are summed at the crossfader.
XFA signals are sent to the left of the cross fader and XFB signals are sent to the
right of the cross fader. If one or both sides has no signals assigned then that side will
have no signal.