American Audio DIGI-PRO Guide de l'utilisateur télécharger pdf (Page 17)

Chapter 2: Hardware Overview 11

Mic Input and Controls

Use the Mic input to record and/or process mic-

level signals. Controls for preamp gain, phan-

tom power, and pad are provided.

48V (Phantom Power)

Use this switch for microphones that require

phantom power.

Most condenser microphones (such as an AKG

C3000) do require phantom power to operate.

Dynamic microphones (such as a Shure SM57)

do not require phantom power, but are not

harmed by it.

If you are not sure about the phantom power re-

quirements for your microphone, consult your

microphone’s documentation or contact the

manufacturer.

Display

The Display is an LCD screen used to show Rigs,

settings, and data (such as firmware version). It

also works in tandem with the front panel Con-

trol knobs and buttons, displaying the cur-

rently-controllable parameters and their set-

tings.

Control Knobs

Use the Control knobs to access amp and effects

controls, as well as other Eleven Rack settings.

The controls are pre-assigned, depending on the

current mode. The knobs light up in different

colors, depending on their state:

Amber The current knob is assigned to an amp,

cab, or FX loop parameter.

Green The current knob is assigned to an effects

parameter.

Red The current knob is positioned differently

than the assigned control’s saved position in the

current Rig. You can match the knob position to

the saved parameter by turning the knob until it

lights Amber or Green again. If you want to save

your new settings to the current preset or a new

preset, press the Save button.

When a Control knob isn’t active in the current

screen, it is not lit.

When using Eleven Rack as a standalone

preamp and processor, it’s important to note

that only one input type can run through the

Rig at one time. The Rig Input User Option

setting must be set to the correct input type,

or no audio will pass to the outputs. For

more info on selecting the input that feeds

the rig, see “Rig Input” on page 90.

When using Eleven Rack as an audio inter-

face with Pro Tools, all inputs are usable si-

multaneously (though the Rig is still limited

to processing one input type at a time).

Although phantom power is safe for most

microphones, it is possible to damage some

ribbon mics with it. Always turn off phan-

tom power and wait at least ten seconds be-

fore connecting or disconnecting a ribbon

microphone.

For more information on the interaction be-

tween the display and the physical controls

on Eleven Rack, see Chapter 3, “Exploring

Rigs.”

The above only applies when you are still

viewing the page you’re adjusting. For ex-

ample, if you adjust Amp Gain, then scroll

to Distortion, then back to Amp, the Gain

control will not show as red. Keep an eye on

the Save light to be sure.

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