Mackie BIGK NOB Operation Manual Download Page 9

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Operation Guide

Oper

tion Guide

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

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

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 fi rst 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

~100-240 VAC
50/60 Hz 25W

AC SELECT

220-240V

100-120V

BAL/UNBAL

MONITOR

2-TRACK

OUTPUTS

DAW

OUTPUT

PHONES