Digidesign Control 24 Manuale Utente

Using the Mic Preamps

The mic preamp controls are located along the 
top of the fader section. These controls include 
source selection, variable gain, and a high-pass 
filter. 

Each mic-line preamp section provides a Source 
selector, a selectable low-cut (high-pass) filter to 
minimize microphone rumble and other low-
frequency noise, and a rotary gain knob. A Peak 
LED indicates clipping. 

The gain and switching controls for these 
preamps can only be accessed directly from the 
Control|24 surface. They are not accessible 
within Pro Tools. 

Selecting a Preamp Source 

To choose a source input:

■

Push a preamp’s Source switch repeatedly un-

til the LED next to the type of input you would 
like to access on that preamp becomes high-
lighted.

Gain and Sources

The gain range of each preamp is dependent on 
its Source setting. 

MIC 

0 to +60 dBu. Approximate dB range values 

are labeled around the Input Gain control.

DI (channels 1–2 only) 

0 to +40 dBu 

LINE 

–10 to +10 dBu 

These values are displayed around the pot and 
are enclosed in parentheses. 

Adjusting Input Gain

To adjust channel gain:

■

Rotate the Input GAIN knob.

Using the High-Pass Filter 

The high-pass filter on each channel cuts 
12 dB/octave below 75 Hz. This setting is most 
useful when trying to eliminate unwanted low 
frequency rumble or noise from the recording 
source. 

To activate the filter:

■

Press HP FILTER on the appropriate channel.

Source

High-Pass Filter

Gain

Peak LED