Sound Devices 788T - Manual (Page 34)

Inputs and Outputs
Input Setup and Control
The 788T has eight inputs and twelve record tracks. Inputs can be analog or digital sources. Analog
inputs 1 through 4 are on 3-pin XLR connectors; inputs 5 through 8 are on 3-pin TA3 connectors.
Digital AES3 inputs 1-8 use the DE-15 (D-Sub) connector.
Analog and digital inputs can be used simultaneously, for a total of eight.
Input Trim and Input Faders
The Front Panel Input Gain Controls can be switched to the Off position to disable and power down
the input and to ultimately extend battery life. Disable inactive inputs by turning the Input Gain
Control to the full counter-clockwise (Off) position. The Input Gain Controls must be on to route an
input to a track and/or access the Input Settings Window.
The gain of an input is adjusted by two controls, its Input Trim and its Input Fader. This two-stage
control is identical the to topology of mixing consoles and provides a great deal of fl exibility when
inputs are assigned to tracks. Input Trim is often thought of as a coarse gain control and Input Fader
is thought of as the fi ne gain control.
From the factory, the front panel Input Gain Controls adjust trim levels. When an input is sent to
a track, the input is sent at the level controlled by the Input Trim. In this factory default mode, the
Input Fader control is set at unity, cannot be controlled, and has no effect on levels.
The Setup Menu option INPUT: FRONT PANEL CONTROLS provides three options, Trim Control,
Fader Control, or Input Enables Only. This menu is not available when the CL-9 is attached. Select-
ing Fader Control changes the eight front panel Input Gain Controls to adjust the fader level on
an input. Trim levels are now set using the Rotary Switch from within the respective input’s Input
Settings Window. Pressing in on the Rotary Switch will toggle between Trim control and High-Pass
Filter control. When Input Enables Only is selected, the Front Panel Controls turn the inputs on and
off only and the Trim Level is controlled within the Input Settings Window.
When Input: Front Panel Controls is set to anything other than Trim Controls, panning linked inputs is
disabled.
The fader range is adjustable in the Setup Menu option INPUT: FADER RANGE between Wide, Fade
Only, and Narrow. A Wide range allows the user to attenuate the fader from negative infi nity (off) to
+15 dB. Fade Only allows the user to attenuate the fader level from negative infi nity (off) to 0 dB. A
narrow range allows the user to attenuate the fader level from -15 to +15 dB. Fader levels are rela-
tive to the trim level of the selected input. Fader range applies to all available faders including, Front
Panel Gain Controls (if set as Fader controls in the Setup Menu option Input: Front Panel Controls),
the CL-2 fader, the CL-8, and the CL-9 faders.
The CL-8 and CL-9 faders can be calibrated in the Setup Menu option FADER CAL. This allows the
Sound Mixer to set the 0 dB (unity gain) position of the fader. To calibrate the faders of the CL-8 or
CL-9, set all fader levels to the desired 0 dB position. Enter the Setup Menu option FADER CAL and
press the check mark.
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788T/788T-SSD User Guide and Technical Information
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v. 3.02 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.
Inputs and Outputs
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