User Manual

Chapter 8: 003 and 003 Rack Back Panels 57
Analog Inputs 5–8 and Operating Level
Switches
Analog Inputs 5–8 are balanced, 1/4-inch TRS
jacks for line-level analog audio input connec-
tions.
Operating levels for each of these line-level in-
puts is switchable between +4 dBu and –10 dBV,
using the Operating Level switches immediately
to the right of the input jacks.
While Inputs 5–8 do accept unbalanced connec-
tions, this may result in a noisier signal than a
balanced-to-balanced connection.
Analog Outputs
Main Analog Outputs 1–8
These are impedance balanced, 1/4-inch TRS
jacks for line-level analog audio output connec-
tions. Operating levels for these outputs are
fixed at +4 dBu.
While the Main Analog Outputs do accept un-
balanced connections, this may result in a nois-
ier signal than a balanced-to-balanced connec-
tion.
Monitor Section
Main Monitor Outputs
These outputs support balanced TRS, or unbal-
anced TS, 1/4-inch connections. To monitor
your mix, these outputs can be connected to a
mixing board, directly to a monitoring system
(such as a stereo power amp, powered speakers,
or another stereo destination).
The Main Monitor Outputs play the audio that
is routed to analog outputs 1 and 2 from within
Pro Tools, respectively. These analog outputs
feature 24-bit digital-to-analog converters. Op-
erating levels for these outputs are fixed at
+4 dBu.
Monitor gain level is controlled by the Monitor
Level control (located on the top panel of 003,
and on the front panel of 003 Rack).
Monitor output can be muted and the signal
routed to the Alt CR Output with the Alt CR
switch.
Alt Monitor Outputs
These outputs support balanced TRS, or unbal-
anced TS, 1/4-inch connections. These outputs
can be used to monitor your mix through an al-
ternate, or secondary studio monitoring system,
instead of the system connected to the Main
Monitor Outputs.
The Alt Monitor Out Left and Right play the au-
dio that is routed to analog outputs 1 and 2 from
within Pro Tools, respectively. These analog
outputs feature 24-bit digital-to-analog convert-
ers. Operating levels for these outputs are fixed
at +4 dBu.
Monitor gain level is controlled by the Monitor
Level control (located on the top panel of 003,
and on the front panel of 003 Rack).
Analog Inputs 7–8 are disabled when the
Aux In to 7/8 switch is enabled (lit).
If you plan on connecting Analog Outputs
1–8 to –10 dBV gear, you may want to
place a transformer-based line level attenu-
ator between the 003 or 003 Rack output
and the input of the destination device to
compensate for level differences.