Cue Source Knob [Big Knob Studio + ]; Direct Monitoring Knob; Phones Knobs And 2-Track / Cue Switches; Studio Outs On / Off Button - Mackie big knob studio Owner's Manual

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 appropriate 2-track
input source select button when recording to your
2-track recorder!

23. Cue Source Knob [Big Knob Studio + ]

USB
The Big Knob Studio + has a 3-postion blend knob
that allows you to select which input source(s) level is
controlled via the direct monitoring knob (as described
below).
POWER
Knob position (L, C, R):
• Left – Only the aux mix inputs will be heard.
• Center – A masterful concoction of the aux mix
inputs, USB and inputs 3/4 will be heard...also known
USB
REC SRC
as "a blend". And you didn't think we made blenders!
SELECT
• Right – Only USB outputs 3/4 – the return from
2-TRACK
the DAW – will be heard.
INPUTS 1/2
1 (L)
POWER

24. Direct Monitoring Knob

MAX
MIC/LINE/INST GAIN
The direct monitoring knob adjusts the level of
inputs 1/2 [Big Knob Studio] and Cue Source selection
[as described above, Big Knob Studio + ] to be delivered
to the phones and studio outputs. As an added bonus,
this is all at zero-latency!
SOURCE(S)
AUX
Knob position (L, C, R):
MIX
1 (L)
• Full Left – Input 1/2 = Full Volume
CUE
Cue Source = No Volume
SOURCE
MAX
• Center – Input 1/2 and Cue Source = Equal Volume
MIC/LINE/INST GAIN
• Full Right – Input 1/2 = No Volume
CUE
INPUTS
DIRECT
Cue Source = Full Volume
MONITORING
SOURCE(S)
AUX USB
23
MIX 3/4
CUE
STEREO IN
SOURCE
5/6
24
CUE
INPUTS
DIRECT
MONITORING
STEREO IN
5/6
MONITOR MONITOR
C B
REC SRC
SELECT
2-TRACK
INPUTS 1/2 L
+18VDC
1.5A
R
BAL / UNBAL BAL / UNBAL
MONITOR MONITOR
C B
L
2 (R)
+18VDC
1.5A
R
MAX BAL / UNBAL BAL / UNBAL
USB
3/4
2 (R)
MAX
1 25
1 2
25. Phones Knobs and 2-Track / Cue Switch(es)
The phones knobs are used to adjust the volume
from the phones output jacks, from off (∞) to maximum
gain (MAX).
The headphone amp is loud and could
cause permanent hearing damage. Even
intermediate levels may be painfully loud
with some headphones. BE CAREFUL!
Always turn the phones knob all the way down before
connecting headphones or doing anything new that may
affect the headphone volume. Then turn it up slowly as
you listen carefully.
The accompanying 2-track / cue switch(es) control
MONITOR STUDIO/ 2-TRACK
the location of where the headphones is receiving its
PHONES
A
+4dB
AMP
-10dB
source path.
Switch disengaged [up] – Phones receives the source
L L L
from the main output signal path, post-summing / pre-
volume.
Switch engaged [down] – Phones receives the same
R R R
BAL / UNBAL BAL / UNBAL BAL / UNBAL
signal as the studio outputs.
OUTPUTS
This feature allows you to choose between
MONITOR STUDIO/ 2-TRACK hearing what is selected on the input
PHONES
A
+4dB
AMP source section or what the musicians hear
-10dB
in the cue mix.
The Big Knob Studio has one
L L L
2-track / cue switch while the
Big Knob Studio + possesses
an additional switch, one for each
R R R
BAL / UNBAL BAL / UNBAL BAL / UNBAL
phones knob.
OUTPUTS
26
27
2
27. Studio Outs Level Knob [Big Knob Studio + ]
The studio outs level knob is used to adjust the
volume from the studio output jacks on the rear panel,
from off (∞) to maximum gain (MAX).
INT
EXT
L
MIC
R
FOOTSWITCH
TALKBACK
INT
EXT
L
MIC
R
FOOTSWITCH
TALKBACK

26. Studio Outs On / Off Button

[Big Knob Studio + ]
This button turns the signal path
on and off going to the studio outs
jacks on the rear panel. The button
will illuminate white when engaged
(on).
Owner's Manual
AUX 5/6 3/4
MIX
+4dB
-10dB
L L
(MONO) (MONO) (M
R R
BAL / UNBAL BAL / UNBAL BAL / UN
SOURCES
CUE IN
AUX 5/6 3/4
MIX
+4dB
-10dB
L L L
(MONO) (MONO) (MONO
R R R
BAL / UNBAL BAL / UNBAL BAL / UNBAL
SOURCES
CUE IN
15