grace design m906
owner’s manual
24
advanCed feaTures: aCCessInG The Cal modes
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 specific tasks. In either
case, these flexible tools provide an easy way for you to customize the settings of your m906.
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. the
following table shows the each user calibratable settings and its factory default setting.
featURe
factoRY SettinG
PaGe
1 Input source level offsets
0dB
24
2 All Global Speaker Output Offsets
0dB
25
3 Individual Speaker Output Offsets
0dB
26
4 CUE Output Level
100dB
26
5 CUE/Speaker 3 Mode / level
CUE MODE / 0dB
27
6 Fixed DAC Output Level
0dB
28
7 Main Output Level Preset
0.0
29
8 Headphone Output Level Preset
0.0
29
9 Headphone Gain
0dB
30
10 DIM Level
-20dB
30
11 CUE Output DIM Level
0.0dB
31
12 Lock Clock Select
Disabled
31
13 Talkback Latch
Disabled
32
14 Talkback Mic Preamp Gain
+30dB
32
15 Talkback Mic Phantom Power on/off
OFF
32
16 7-segment Brightness Control
4
33
17 CENTER Channel DOWNMIX Ratio
-3.0dB
33
18 LEFT and RIGHT Surround channel DOWNMIX ratio
-6.0dB
33
19 Reset All System default settings
n/a
33
table 2 factory default CAL settings
caLiBRatinG inPUt SoURce LeveL offSetS
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:
1. Enter CAL mode by pressing the CAL switch. The switch LED will begin to flash, 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.
2. Press the switch corresponding to the input source you’d like to calibrate. The switch LED will begin to flash and
*input offset* will be displayed in the first line of the LCD screen (see screenshot 7).
