DigiDesign Mbox 2 Pro, Getting Started Manual, Page: 38 / 84

Mbox 2 Pro Getting Started 30
Headphone Outputs
Mbox 2 Pro provides two 1/4-inch, stereo head-
phone outputs, A and B, each with its own level
control. Headphones mirror the Monitor out-
puts, by default (usually your main Pro Tools
Analog 1–2 outputs). Headphone B can also be
configured for discrete monitoring of Pro Tools
outputs 3–4 (Analog 3–4) using the 3–4 switch.
Headphone Level
The headphone knobs adjust the output level of
their corresponding Headphone output (A or B).
3–4 Switch and LED
The 3–4 switch toggles Headphone B output be-
tween the main outputs (1–2), and output chan-
nels 3–4. When this switch is in its “out” posi-
tion, Headphone B mirrors Headphone A output
and the 3–4 LED is off. When this switch is in its
“in” position, Headphone B monitors Pro Tools
output channels 3–4.
Monitor Level
The Monitor knob adjusts the output level of
the Mon Out ports. In Pro Tools, this will be the
signal routed to Analog outputs 1–2.
48V Switch and LED
Phantom power is activated by the switch la-
beled 48V on the front panel of Mbox 2 Pro. The
LED, when lit, indicates that 48V phantom
power is active on
both Mic/Line inputs. These
inputs provide phantom power for micro-
phones that require it to operate.
About Phantom Power
Dynamic microphones (such as a Shure SM57)
do not require phantom power to operate, but
are not harmed by it. Most
condenser micro-
phones (like an AKG C3000) do require phan-
tom power to operate.
If you are not sure about the phantom power re-
quirements for your microphone, consult your
microphone’s documentation or contact the
manufacturer.
Although phantom power can be used
safely with most microphones, it is possible
to damage some ribbon microphones with
it. Always turn off phantom power and wait
at least ten seconds before connecting or dis-
connecting a ribbon microphone.