VocoPro PA-PRO 900, Руководство пользователя

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33. +48V PHANTOM POWER – This button toggles
phantom power to all the XLR microphone jacks. Enabling
phantom power sends low current DC voltage to a
microphone’s electronics through the same cable that
carries the audio signal.
Most professional condenser microphones require phantom
power. There are some semi-pro microphones that use a
battery to provide the required voltage, and of course many
microphones that do not require phantom power at all. It
is wise to make sure that the microphone you are feeding
phantom power to actually requires it.
NOTES: When phantom power is enabled, refrain from
connecting devices (including musical instruments) via
unbalanced ¼” cables; use balanced ¼” cables instead.
If you need to connect a microphone that is not phantom
powered, simply connect it via a balanced XLR cable.
34. POWER AMP ASSIGN
– This switch lets you choose
which signals will be routed to the PA-PRO 900’s power
amplifi er. This provides fl exibility in how the PA-PRO 900’s
internal power amplifi er can be utilized.
To set the POWER AMP ASSIGN switch, use a small
screwdriver to maneuver the switch to the desired position.
Set this switch to MAIN L,R for straight
stereo playback. When confi gured this
way, the LEFT channel will output to the L
speaker-level outs, and the RIGHT channel
will output to the R speaker-level outs.
Select MAIN L, R in situations when there
is no need to power a monitor speaker,
either because the monitor speaker is self-
powered, or there is no need for a monitor
speaker.
Set this switch to MAIN L,R+MONITOR
when you need to power a monitor speaker.
In this confi guration, the MAIN L,R mix is
output to the L speaker-level outs, and the
MONITOR mix is output to the R speaker-
level outs.
35. CH. 1-4 MUTE
– This button is used to quickly mute all
audio from channels 1-4. This feature is very handy during
breaks and intermissions; audio can be disabled quickly
without having to adjust any other control. Push the button
IN to mute the audio, press the button again (OUT) to have
the audio return to the mix. When mute is activated, the
MUTE LED will remain lit until mute is disabled.
36. CH. 5-8 MUTE - This button is used to quickly mute all
audio from channels 5-8. This feature is very handy during
breaks and intermissions; audio can be disabled quickly
without having to adjust any other control. Push the button
IN to mute the audio, press the button again (OUT) to have
the audio return to the mix. When mute is activated, the
MUTE LED will remain lit until mute is disabled.
37. POWER – Use this switch to power the PA-PRO 900
ON/OFF.
NOTE: Before powering on, make sure that voltage of your
PA-PRO 900 is the same voltage as your local AC mains
voltage. The PA-PRO 900 is factory set for specifi c power
needs
Front Panel Features
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