Monitor Controller Owners Manual
Table Of Contents
- 1 Welcome
- 2 Important Safety Information
- 3 Safety Marking Symbols
- 4 Service Information
- 5 m905 features
- 7 Unpacking and Installing
- 8 Connecting the m905
- 9 Normal Operation Mode
- 10 Setup Mode
- 11 General Setup
- 12 ABOUT CROSS-FEED
- 13 Communication Error Handling
- 14 Computer Audio Setup
- 15 Updating Firmware
- 16 Specifications
- 17 Block Diagram
- 18 PCB Jumper Locations
- 19 Wiring Diagrams
- 20 Cleaning and Maintenance
- 21 Warranty Information
- 22 Manual Revisions
15
THE DAC STATUS PROVIDES THE FOLLOWING INFORMATION:
• Selected digital input source / demphasis (if enabled) / s/mux (if enabled)
• Sample rate (PCM or DSD) / s-lock status (if active)
• Selected clocksource / selected clocksource lock status. If the system is unable to lock to the selected
clocksource (other than the recovered clock), the dac will be clocked of the recovered clock and selected
clocksource will flash red.
• Bitstream status: pro/cons (for TOSLINK, S/PDIF and AES), s/mux (for ADAT) and demphasis (for TOSLINK,
S/PDIF and AES)
SPL MEASUREMENT Using the internal m905 RCU microphone, the m905 computes the real-time sound
pressure level based on the system conguration. The current and peak SPL levels are displayed along
with the lter mode in this section of the display. The SPL measurement settings are congured in setup.
<figure - SPL meter>
SAVE / RECALL OF USER CONFIGURATION
After a 10 minute period of inactivity, the m905 saves the current user conguration to non-volatile
memory. Upon power-up the m905 recalls the last saved conguration. The following parameters are
saved as part of the user conguration:
• INPUT SELECT
• SPEAKER SELECT
• SELECTED ADAT INPUT PAIR
• DAC SOURCE
• LAST SELECTED AES INPUT
• MON>CUE STATUS
• CROSS-FEED STATUS
OPTIONAL IR (INFRARED) REMOTE CONTROL OPERATION
The optional IR receiver allows certain features of the m905 to be controlled via wireless IR remote
control units. To activate an m905 for use with a remote control please refer to the ‘IR Remote SETUP’
section. The following section will detail the available features for each remote platform. All changes
made from IR remote controls are reected on the m905 RCU.
GRACE DESIGN IR REMOTE CONTROL OPERATION An optional high quality Grace Design wireless remote
control is available for control of the m905. Several of the buttons on the remote have dual functions, ac-
cessed by either a ‘press and release’ or a ‘press and hold’ action, and are described below:
Grace IR Remote Button m905 Press & Release function (m905 Press & Hold function)
MUTE
Toggles MUTE of selected output (Toggles SOLO mode)
X-FEED
Toggles x-feed
OUTPUT
Toggles selected output (Recalls preset level for selected output)
BALANCE
Toggles MONO
VOLUME UP/DOWN
Volume UP/DOWN for selected output (Continuous Volume UP/DOWN)










