External Source Selectors; Solo/Afl/Pfl - Solid State Logic SL 9000 J Series Operator's Manual

The Centre Section

External Source Selectors

The console has two external source selectors, each fed by eleven sources. EXT 1 is a
2-channel selector and EXT 2 is a 4-channel selector. The first three sources are
common to both selectors - MIX (desk output), the ST(EREO) CUE bus and the output
of the FX (mono auxiliary) bus pre-selector.
EXT 1 can also monitor the four stereo busses, ST A-D (post insert point), and four
stereo external sources, EXT 1-4.
EXT 2 can monitor five stereo, EXT 5-9, and three four channel external sources, 4
TRK 1-3.
SUM allows sources to be summed together. This is particularly useful for generating
complex foldback mixes or when stem mixing, as it allows the recorded stems to be
monitored together with the current mix.
LINK links the two selectors together – selecting either one will light both EXT 1 and
EXT 2 switches, and the two columns of source switches will intercancel.

SOLO/AFL/PFL

The console's default Solo mode is a destructive solo – soloing a channel cuts all other
channels. The Large and Small Fader solo cut busses are normally separate but can be
linked using the SOLO LINK switch.
AFL – When AFL is selected, pressing a channel solo switch routes the post pan signal,
via the AFL bus and the AFL/PFL LEVEL control, to the monitor speakers. Note that,
unlike on SL 4000 Series consoles, this signal is 'in-place' – that is it follows the
position of the pan pot, even if the console is fitted with LCR panning.
PFL – When PFL is selected, pressing a channel solo switch routes a mono pre-fade
signal, via the PFL bus and the AFL/PFL LEVEL control, to the monitor speakers. In 2
CH mode (see Page 5-9) this is routed to Left and Right speakers. In 4 CH mode it is
routed to the Centre speaker.
A/PFL TO MINIS – Selection of this button routes the AFL or PFL signal to the MINI
'A' loudspeakers, leaving the desk output on the Main monitors. Note that the
AFL/PFL LEVEL control has no effect in this mode; control the level on the MINI LS
pot.
SOLO-IN-FRONT – With SOLO IN FRONT selected, pressing a channel solo switch
routes a mix of the AFL signal and the desk output to the monitor outputs. The SOLO
IN FRONT mix control adjusts the balance between AFL signal and desk output.
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