Grace Design m906 - Advanced Features: Accessing the Cal Modes

grace design m906
owner’s manual
22
grace design m906
owner’s manual
23
The m906 includes a comprehensive set of calibration tools that allow you to tweak the operating
parameters of your system. In normal day to day operation, you may not have a need to use the CAL
modes much or you might regularly need to access a number of them for job specic tasks. In either
case, these exible tools provide an easy way for you to customize the settings of your m906. The
following features are available in CAL mode:
•
Input source level offsets
•
Global speaker set output level offsets
•
Individual L,C,R,LS,RS,SUB speaker output level offsets for each speaker set
•
Cue output levels
•
Stereo speaker #3 / CUE output mode
•
Speaker 3 global and individual channel level offsets
•
Fixed DAC output levels
•
Talkback mic preamp gain levels
•
Talkback 48v on/off state
•
Dim levels
When CAL MODE is entered, the currently selected signal path is kept active until the user selects
a different path for calibration. CAL values are stored in the non-volatile memory of your m906.
Whenever you edit a calibration value, the new value(s) instantly takes affect and are stored in this
memory. Edited parameters are automatically recalled the next time you power up your system.
System parameter values can also be reset to the factory defaults at any time via a sequence outlined
at the end of this section. Table 2 below is provided as a reference to show the factory default settings
for items that can be calibrated in your m906 system:
Calibrating Input Source Levels
Every m906 source input, both analog and digital, can be calibrated to offset any level differences that
may exist between different sources. The relative range of calibration is +/- 10dB in 0.5dB steps. To enter
CAL mode and change the current input source level value, do the following:

Enter CAL mode by pressing the CAL switch. The switch LED will begin to ash, indicating that you’re now in
calibration mode. All other switch LEDs on the remote control unit will be unlit. If you inadvertently entered
CAL mode, simply press the CAL switch again. You’ll be returned to the normal operating state of the m906
and the CAL switch LED will extinguish.
All Input Offsets: 0dB
All Global Speaker Offsets: 0dB
All Individual Channel Offsets: 0dB
Fixed Dac Output Level: 0dB
Cue Output Level: 0dB
Talkback Mic Preamp Gain: +30dB
Phantom Power on/off: OFF
Dim Level: -20dB
CUE/Speaker 3 Mode: CUE MODE
table 2 Factory default CAL settings
Advanced Features: Accessing the Cal Modes