Operating instructions

6
MirageAudioSystem.com
Multi-Zone, Multi-Source Switching
The M-400 amplier has four separate ampliers providing 4 zones of
independent yet integrated control.
There are 6 input sources comprising the following:
» Sources 1 – 4 are either Analog Stereo, or Coax Digital
Audio (PCM).
» Sources 5 & 6 are either Coax (PCM) or Optical Digital Audio
(TOSLINK)
Amplier Power, Protection, and Clipping Indicators
50 Watts RMS per channel into 8 ohm loads. Capable of driving into 4
ohm loads. The ampliers are protected against output shorts, and have
algorithms that prevent hard clipping when the zone ampliers are
overdriven.
Thermal Control
There are two progressive levels of thermal control:
» The amplifier volume is reduced 20dB.
» The amplifiers are shutdown until the temperature reduces
below the first level.
Care should be taken to ensure adequate ventilation – see “Important
safety instructions” on page 2
Real Time Clock
The M-400 amplier is equipped with a real time clock. The clock
automatically compensates for daylight saving time if congured to do
so. The clock continues to operate typically > 48 hours without power
(more than enough to keep the time current during lengthy power
outages).
IR Emitter Ports
There are 8 Buffered IR emitter Ports.
Ports 1 – 6 have IR routing, and are intended to control specic input
source components. Two IR ports “SUM IR1-IR6” are the sum of all IR
sources and control the “All” zone source components.
Ethernet, RS232, USB and IR Control
The M-400 amplier may be controlled and monitored via the rear
Panel USB, RS232 serial interface or Ethernet. In multi-amplier
installations where the ampliers are interconnected using an
expansion bus cable, only one Ethernet or RS232 connection is required
to control the stack of ampliers. An M-400 amplier may receive
IR directly from the front panel receiver. There are zone specic IR
commands and also a set of global IR commands.
The commands are:
» ON
» OFF
» Standby (toggling)
» Mute
» Volume Up
» Volume Down
» Source Selects
» Discrete Audio Source Selects
» On with Source Specific commands
Expansion Bus
Data & IR are interconnected via the expansion bus.
One amplier is connected to another using a standard RJ45 patch
cable. Connections are made between ampliers using either of the
two RJ45 expansion bus sockets.
Discrete Audio Selection
Audio selection may be independent. There are RS232 and IR Discrete
control commands available.
FEATURES
Thank you for purchasing an M-400 Mirage Multi-Zone Amplier.
Please read this manual thoroughly before making connections and plugging in the device.
Following the instructions in this manual will enable you to obtain optimum performance and listening enjoyment
from your new Multi-Zone Amplier. Please retain this manual for future reference.