Operation Guide
Oper
ation Guide
9
When the button is down (PHONES MIX INPUT),
the STUDIO/PHONES outputs are fed the signal
from the DAW PHONES MIX INPUT
jacks on the
rear panel. In this position, the recording engineer
listens to the “real” mix coming from the DAW
(DAW MIX INPUT), but the talent can listen to an
alternate and specialized mix coming from the DAW
(DAW PHONES MIX INPUT).
Many DAW applications provide at
least four outputs through their as-
sociated I/O hardware. Two outputs
can provide the main mix, which is
connected to the DAW MIX INPUTs
on Big Knob and selected for moni-
toring with the DAW MIX INPUT SOURCE SELECT
button. The engineer can create a separate head-
phone mix for the talent in the DAW application by
using a stereo aux send routed to another pair of
outputs, which is connected to the DAW PHONES
MIX INPUT on Big Knob and routed to the STUDIO/
PHONES outputs with the PHONES/STUDIO OUT
SOURCE button.
STUDIO OUTS ON/OFF
This button turns the signal path on and off going
to the STUDIO OUTS
jacks on the rear panel.
When the button is pushed in (ON), the red LED
above the button lights and the signal appears at
the STUDIO OUTS.
STUDIO OUTS LEVEL Control
This controls the level at the STUDIO OUTS
on
the rear panel.
TALKBACK LEVEL
This knob controls the level of the preamp for the
internal omni-directional talkback mic, as it is
routed either to the DAW
and 2-TRACK A
and
B
outputs (when the TO 2-TRACKS
button is
pressed) or to the PHONES/STUDIO bus (when the
TO PHONES/STUDIO
button is pressed). The
gain of the TALKBACK LEVEL control ranges from
Off (
∞
) to +10 dB when turned all the way up.
Internal Talkback MIC
This omni-directional microphone is located right
in Big Knob’s front panel, just to the left of the Big
VOLUME
Knob. The microphone is activated when
one of the two TALKBACK assign buttons is pressed.
TO 2-TRACKS
Pressing this momentary button illuminates the red
LED above it, activates the internal talkback MIC,
and sends its signal to the:
• 2-TRACK A
output connectors
• 2-TRACK B
output connectors
• DAW
output connectors
TO PHONES/STUDIO
Pressing this momentary button illuminates the red
LED above the button, activates the internal talk-
back MIC, and sends its signal to the:
• PHONES 1 and 2
headphone outputs on the
front panel
• PHONES AMP
outputs on the rear panel
• STUDIO OUTS
on the rear panel
The TALKBACK TO PHONES/STUDIO button routes
the talkback signal to all of these outputs no matter
how the PHONES/STUDIO OUTS SOURCE
selec-
tor button is set. This means that all the headphones
and studio outputs will hear the talkback signal
whether they are getting program material from the
INPUT SOURCE(S) or the PHONES MIX INPUT
.
Unlike all of the other buttons, the TALKBACK TO
PHONES/STUDIO and TALKBACK TO 2-TRACKS
buttons are momentary, and only activate the talk-
back mic as long as they are physically pressed.
Note:
Both talkback buttons can be pressed at
the same time to route the talkback mic to the 2-
TRACK outputs and the PHONES/STUDIO outputs.
If the TALKBACK FOOTSWITCH
jack on the rear
panel is activated by an external footswitch, it is the
equivalent of pressing both talkback buttons at once.
Rear Panel
SOURCES
The following section describes the connectors that
are used for various sources feeding into Big Knob.
2-TRACK A Inputs
These stereo 1/4-inch balanced/unbalanced inputs are
fed by the outputs of the first external 2-track recorder.
If a mono signal is plugged into the LEFT input only, it
is automatically routed to both LEFT and RIGHT inputs.
POWER
ON
AC SELECT
220-240V
100-120V
BAL/UNBAL
MONITOR
A
2-TRACK
A
2-TRACK
B
OUTPUTS
DAW
OUTPUT
PHONES
AMP
STUDIO
BAL/UNBAL
+
4dB
-10dB
+
4dB
-10dB
+
4dB
-10dB
+
4dB
-10dB
+
4dB
-10dB
BAL/UNBAL
L
R
DAW
PHONES
MIX INPUT
-10dB
+4dB
MONITOR
B
BAL/UNBAL
L
R
-10dB
+4dB
MONITOR
C
BAL/UNBAL
L
R
L
R
L
R
L
R
L
R
L
R
L
R
-10dB
+
4dB
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
-10dB
+
4dB
BAL/
UNBAL
BAL/
UNBAL
(MONO)
RIAA
SOURCES
2-TRACK
B
(MONO)
-10dB
+4dB
-10dB
+4dB
-10dB
+4dB
DAW
MIX
PHONO
GROUND
TALK BACK
FOOT
SWITCH
L
R
BAL/
UNBAL
(MONO)
L
R
L
R
L
R
-10dB
+
10dB
-10dB
+
10dB
-10dB
+
10dB
-10dB
+
10dB
2-TRACK
A
U
U
U
U
