Avid Technology DigiDesign PRE, Руководство пользователя

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Pro Tools | PRE Guide
12
Using Pro Tools | PRE in
Stand-Alone Mode
PRE can be used without Pro Tools as a stand-
alone microphone preamplifier. PRE stand-alone
operation requires power and audio connections.
Powering Up PRE
To use PRE as a stand-alone microphone
preamplifier:
1
Connect AC power to PRE.
2
Power on PRE.
At power up, PRE units default to the last settings
they had at power down.
Making Signal Connections to
PRE
Depending on how you plan to use PRE, the way
you connect it to your studio will vary.
While you can use PRE with a variety of audio
setups, all you really need is a line input device
(such as a mixer or an A/D converter) to monitor
PRE outputs.
Connecting Audio Sources
To connect a microphone:
1
Press the Channel Select switch for the Mic In-
put you will be using.
2
Change the input source to Mic, by pressing
Source one or more times.
3
Make sure the gain is turned down, especially if
the monitors are up.
4
Verify that phantom power (48V) is disabled.
Press the 48V switch so that the 48V LED is off.
5
Plug a microphone directly into the Mic Input
on the back of PRE. These inputs accept XLR
connectors.
6
If your microphone requires phantom power,
press 48V.
7
Turn the Gain/Param control to raise the gain.
Use the Peak Meter to determine the proper
level.
If the output trim has been calibrated to the input
trim of your HD I/O, the pre-fader meter in
Pro Tools should accurately reflect the Peak Meter
of the PRE, allowing you to use the on-screen me-
ters to set your levels.
8
Repeat these steps for additional microphone
connections.
To connect line level and instrument level sources:
1
Press the Channel Select switch for the
Line/Inst Input you will be using.
2
Change the input source to Line or Inst by
pressing Source one or more times.
3
Plug a line level source (such as a synth, output
from your mixer, or a microphone or guitar that
has been amplified by an outboard preamp) or a
DI (direct instrument) source into a Line/Inst
Input on the front or back of PRE. These inputs
accept balanced/unbalanced TRS connectors.
To prevent damage to PRE or your monitor-
ing system, mute your monitoring system or
set levels to their minimums before making
audio connections.
Although phantom power (48V) can be used
safely with most microphones, some ribbon
microphones can be destroyed by it. You
should always turn off phantom power, and
wait for the red light to go completely off be-
fore connecting or disconnecting a
ribbon microphone.