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Now you know how to select the signals you
want to send to the engineer’s control room or
phones. From there, these signals all pass
through the same level control, aptly named:
CONTROL ROOM/PHONES
As you might expect, this knob controls the
levels of both the stereo
CONTROL ROOM
outputs and
PHONES
outputs . The con-
trol range is from
off
through
unity
gain at the
detent, with 10dB of extra gain (when turned
fully clockwise).
When
MAIN MIX
is your
SOURCE
selec-
tion, those signals will now pass through two
level controls on the way to your control room
amp and phones — the
MAIN MIX
knob and
this
CONTROL ROOM / PHONES
knob. This
way, you can send a nice healthy level to the
MAIN OUTS
(
MAIN MIX
knob at “
U
”), and a
quiet level to the control room or phones
(
CONTROL ROOM / PHONES
knob wherever
you like it).
When
ALT 3-4
or
TAPE
is selected, or
SOLO
is engaged,
CONTROL ROOM / PHONES
knob will be the only one controlling these
levels (channel controls not withstanding).
Whatever your selection, you can also use
the
CONTROL ROOM
outputs for other appli-
cations. Its sound quality is just as impeccable
as the
MAIN OUTS
. It can be used as addi-
tional
MAIN MIX
output, which may sound
silly since there are already three, but this one
has its own level control. However, should you
do something like this, be sure that you do
not
engage a
SOLO
switch, as that will interrupt
your
SOURCE
selection.
PRE-FADER SOLO (PFL)
Engaging a channel’s
SOLO
switch will
cause this dramatic turn of events: Any exist-
ing
SOURCE
matrix selections will be replaced
by the
SOLO
signal, appearing at the
CON-
TROL ROOM
outputs,
PHONES
outputs, and
at the right meter. The audible
SOLO
levels
are then controlled by the
CONTROL ROOM /
PHONES
knob. The
SOLO
levels appearing on
the right meter display
are not controlled by
anything — you wouldn’t want that. You want
to see the actual channel level on the meter
display regardless of how loud you’re listening.
“
PRE-FADER
”
SOLO
means that the channel
signal is being tapped before the channel’s
GAIN
knob (not really a fader in this case, but
we were afraid you’d laugh if we called it Pre-
Knob Solo). It does, however,
obey
TRIM
,
LOW
CUT
and
EQ
settings, making it the perfect tool
for quick inspections of suspect channels. The
channel’s
PAN
and
MUTE/ALT 3-4
settings have
no effect on the
SOLO
signal.
Note:
For stereo channels 5-12, the solo signal
is the mono sum of the left (odd-numbered)
and right (even-numbered) signals for that
channel strip.
WARNING:
PRE-FADER
SOLO
taps the channel
signal before the
GAIN
knob. If you have a
channel’s
GAIN
knob set
below “
U
” (unity gain),
SOLO
won’t know
that, and will send a unity gain signal to
the
CONTROL ROOM, PHONES
and meter
display. That may result in a startling level
boost at these outputs.
U
O
O
+10
U
O
O
+20
U
O
O
+20
U
MAX
O
O
U
+10dB
O
O
RUDE
SOLO
LIGHT
U
BAL
+28
CLIP
0dB=0dBu
+10
LEFT
RIGHT
+7
+4
+2
0
-2
-4
-7
-10
-20
-30
POWER
AUX 1 MASTER
AUX
RETURN
1
2
MAIN MIX
/ PHONES
LEVEL SET
ALT 3-4
ASSIGN
TO MAIN MIX
SOURCE
TAPE
MAIN
MIX
EFX TO
MONITOR
NORMALLED
MON/PRE
POST
AUX 1
SELECT
CONTROL
ROOM