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Big Knob Features
Front Panel
INPUT SOURCE SELECT Section
These buttons turn on or off the four input signals
connected to Big Knob. Any combination of the four
inputs can be turned on at the same time, as indi-
cated by the red LEDs above the buttons.
When selected, these input sources are routed to the
MONITOR A, B, and C stereo outputs, the 2-TRACK A
and 2-TRACK B stereo outputs, the DAW stereo
outputs and, when the PHONES/STUDIO OUTS
SOURCE button is out (INPUT SOURCES), to the
PHONES AMP and STUDIO OUTS stereo outputs, and
to the PHONES 1 and 2 outputs on the front panel.
A Cautionary Note: When you
have a 2-track recording device
connected to both the inputs and
the outputs on Big Knob, you run
the risk of creating a feedback
loop. If the recording device is in record, record
pause, or input monitor mode, the signal can go
from the 2-TRACK outputs through the recording
device and back into the 2-TRACK inputs, creating
a circular loop that results in a terrible howl.
You must remember to turn off the 2-TRACK
INPUT SOURCE SELECT button when recording
to your 2-track recorder!
DAW MIX
Turns on the signals connected to the DAW MIX
stereo inputs.
2-TRACK A
Turns on the signals connected to the 2-TRACK A
stereo inputs.
2-TRACK B
Turns on the signals connected to the 2-TRACK B
stereo inputs.
INPUT
OL
8
0
4
8
DAW
MIX
24
0 =
+
4dBu
PHONES
1
MAX
O O
2
MAX
O O
INPUT SOURCE SELECT
2-TRACK
2-TRACK
PHONO
A
B
STUDIO OUTS
PHONES/
STUDIO OUTS
SOURCE
MAX
O O
OFF
INPUT SOURCE(S)
LEVEL
ON
PHONES MIX INPUT
PHONO
Turns on the signals connected to the PHONO ste-
reo inputs.
INPUT METERS
These six segment meters show the signal level of
the currently selected stereo source(es). The scale
of the six segments of the meter is:
–24, –8, –4, 0, +8, and OL (Overload), where "0" is
referenced to +4 dBu.
VOLUME
This Big Knob adjusts the volume of the selected
input source going to the selected speaker outputs
(MONITOR A, B, and C). The VOLUME knob ONLY
affects the volume level of the monitor outputs (A,
B, and C). It does not affect the volume of the signal
going to other outputs, such as the headphone out-
puts, 2-TRACK outputs, or DAW outputs.
The VOLUME knob ranges from OFF (∞) to +10 dB
of gain (MAX).
MONO
Pressing this button combines the stereo signal
into a monophonic signal at the MONITOR A, B,
and C outputs. The left and right input signals are
summed and the mono signal is output at both the
left and right outputs. This lets you check for phase
problems in the stereo signal when played over a
monophonic system.
MUTE
Press this button to mute the signal going to the
MONITOR A, B, and C outputs.
MIC
O O
MAX
VOLUME
MONO
DIM
MUTE
POWER
POWER
MONITOR SELECT
A
B
TALKBACK
MAX
O O
TO
2-TRACKS
LEVEL
Operation Guide
C
TO
PHONES/
STUDIO
7
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