The Main Menu allows to modify the following parameters:
Amplifier Gain:
The gain of the F676 can be adjusted in 1 dB steps in the range of 0 db and +76 dB. To adjust the
gain move the cursor with the rotary control to the gain field and then press the rotary control.
The cursor will move from the left to the right and the rotary control becomes the gain “pot”. The
change is applied immediately, therefore the engineer can hear the changes right away. When
satisfied with the gain, push the rotary control again and the cursor will move back to the gain field
and can be moved down to select different items. This procedure applies to all parameter
adjustments
Input Pad:
An additional -20 dB input pad (attenuator) can be applied when dealing with very large input
signals.
Phantom Power P48:
Industry standard 48V Phantom Power (P48) can be turned on for microphones requiring such a
power source. Please be sure the connected microphone is made for P48 before turning it on. Most
FET based condenser microphones use P48, while almost all tube based condenser, dynamic and
ribbon microphones do not, some of them can be severely damaged if supplied with P48.
Input Selection:
the choices are “Microphone”, which uses the female XLR input connector located on the back
panel, or “Direct” (DI), the instrument TRS input located on the front panel. The DI accepts both
balanced (TRS) or unbalanced (TS) connections. The input impedance of the DI input is much
higher (470 KOhms) to avoid loading of instrument pickups. There is no P48 on the DI input.
Sub-Menus:
There are two sub menus available to adjust the following parameters:
Advanced:
Manipulation of advanced audio parameters
Utilities:
Safe/Recall Parameters, Calibration etc.
Power:
The F676 can be turned off into stand-by mode. All current settings will be automatically stored at
this point and will be applied after the next turn on.
Fredenstein F676 Manual V1.1 July 18, 2014 Page 4