003 Family Setup Guide66
Mic and Line/DI Input
Controls
The 003 Rack+ has eight input channels, each
featuring a high-quality preamplifier with ad-
justable gain, phantom power, a high-pass filter,
and a pad. These inputs show up as “Analog
1–8” in the default Pro Tools I/O Setup.
Inputs 1–8 have the following controls:
Input Channel Gain Controls
Each knob adjusts gain for the input, with a
range of +15 dB to +60 dB of gain. Gain control
applies to mic, line, or DI input signals, as well
as the front panel DI input.
Input Channel Select Switches
Pressing an Input Channel Select switch gives
you access to that channel’s Control switches.
Only one channel can be selected at a time, and
the following switches will be lit or unlit de-
pending on the status of the selected channel:
Line-DI When enabled (lit orange), the selected
channel receives input from the corresponding
Line/DI (1/4-inch TRS) input (or the front panel
DI if channel 1 is selected). These combination
inputs accept both balanced or unbalanced
line-level signals (from sources like outboard ef-
fect units), and low-level instrument signals
(from sources like guitars and basses).
When unlit, the selected channel receives input
from the mic (XLR) input.
48V When enabled (lit red), 48 volts is applied
to the mic (XLR) input of the selected channel
for mics requiring phantom power (such as con-
denser mics).
HPF (High-Pass Filter) When enabled (lit
green), an analog 75 Hz, 12 dB/octave rolloff
high-pass filter is applied to the selected chan-
nel’s mic or Line/DI input for filtering out rum-
ble or AC hum.
Pad When enabled (lit green), a –20 dB pad is
applied to the selected channel’s mic or Line/DI
input.
Monitor Section
The Monitor section provides the following
control room monitoring features:
Monitor and Headphone Level Controls
Headphone 1 and 2 Level Controls These knobs
control the volume of the independent Head-
phone Outputs. The Headphone Outputs nor-
mally mirror outputs 1–2 in Pro Tools, and are
independent of the Monitor Outputs.
Headphone 2 mirrors output pair 3–4 when the
3/4-HP2 switch is enabled (lit). Both head-
phones include Aux In signal when Aux In (to
monitor) is enabled.
Headphone output is not affected by the status
of the Monitor Mute switch, but does follow the
status of the Mono switch.
If the Line-DI switch is enabled, 48V phan-
tom power will not be applied to the
1/4-inch input.
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