Owners Manual

12
Michi X3 Stereo Integrated Amplifier
If you are going to be away from home for an extended period of time such as
a month-long vacation, it is a sensible precaution to unplug your amplifier (as
well as other audio and video components) while you are away.
Master Power Switch
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The large rocker switch on the rear panel is a master power switch. When it is
in the OFF position, power to the unit is completely off. When it is in the ON
position, the front panel Power
5
button and remote control Power
A
button
can be used to activate the unit or put it into standby mode.
12V TRIGGER Connection
o
See Figure 4
Some audio components can be turned on automatically when they receive
a 12V turn on signal. The two 12V Trigger Outputs of the amplifier provide
the required signal. Connect compatible components to the amplifier with
a conventional 3.5mm mini plug cable. When the amplifier is off, the trigger
signal is interrupted, so the components controlled by it are turned off.
Protection Circuit
The amplifier has both thermal and over-current protection circuitry that
protects the amplifier against damage in the event of extreme or faulty
operating conditions. The protection circuits are independent of the audio
signal and have no impact on sonic performance. Instead, the protection
circuits monitor the temperature of the output devices and shut down the
amplifier if temperatures exceed safe limits.
Most likely, you will never see this protection circuitry in action. However,
should a faulty condition arise, the amplifier will stop playing and Power LED
on the front panel will be red.
If this happens, turn the amplifier off. Let it cool down for several minutes,
and attempt to identify and correct the problem that caused the protection
circuitry to engage. When you turn the amplifier back on, the protection circuit
will automatically reset and the Power LED should be white, indicating that
the amplifier is operating normally.
In most cases, the protection circuitry activates because of a fault condition such
as shorted speaker wires, or inadequate ventilation leading to an overheating
condition. In very rare cases, highly reactive or extremely low impedance
speaker loads could cause the protection circuit to engage.
If the protection circuitry triggers repeatedly and you are unable to isolate
and correct the faulty condition, contact your authorized Michi dealer for
assistance in troubleshooting.
Input Signal Connections
NOTE: To prevent loud noises that neither you nor your speakers will
appreciate, make sure the system is turned off when you make any signal
connections.
Phono Input
7
and Ground Connection (GND)
e
See Figure 3
Plug the cable from the turntable into the appropriate left and right phono
inputs. If the turntable has a “ground” wire, connect it to the screw terminal
to the left of the Phono inputs. It will help prevent hum and noise.
Line Level Inputs
890
See Figure 3
The CD, Tuner, and Aux inputs of the amplifier are analog “line level” inputs.
These inputs are for connecting components such as CD players or other
audio playback devices with an analog audio output.
The left and right channels are clearly labeled and should be connected to
the corresponding channels of the source component. The Left connectors
are white, the Right connectors are red. Use high quality RCA cables for
connecting input source components to the amplifier. Ask your authorized
Michi dealer for advice about cables.
Balanced (XLR) Inputs
q
See Figure 5
A pair of balanced XLR inputs accept audio signals from CD player, Blu-ray
player or other source components with XLR outputs.
NOTE: You should choose only one method of analog connection from
a source component to amplifier. Do not connect both the RCA and XLR
outputs of a source component to the amplifier at the same time.
Digital Signal Inputs
r
See Figure 4
There are three sets of digital inputs labeled 1, 2 and 3, for COAXIAL and
OPTICAL respectively. Connect the COAXIAL or OPTICAL PCM outputs of
your source component into these sockets. The digital signals will be decoded
and played by the amplifier. The unit is capable of decoding PCM signals up
to 24 bit, 192kHz.
Output Connections
MONO SUB Output
-
There are 2 connectors for mono subwoofer output to connect to a subwoofer.
These mono outputs are summed with both the left and right audio signal. They
are parallel outputs allowing 2 subwoofers to be connected to the amplifier.
Preamp Output
=
The amplifier has a set of preamp outputs labeled PRE OUT. The currently
selected source input is available from this output. Typically the PRE OUT
output is used to provide a signal to another integrated amplifier or power
amplifier, which is used to drive remote speakers.
NOTE: Changes to the settings of the Volume, Balance or Tone controls
affect the signal from the Preamp Output.
Headphone Output
6
The headphone output allows you to connect headphones for private
listening. This output accepts a standard 6.3 mm (1/4”) stereo headphone
connector. Plugging in a set of headphones cuts off the signal to the amplifier
and speaker outputs. When the headphone is plugged in, the icon will be
displayed on the OSD.
NOTE: Because the sensitivity of speakers and headphones can
vary widely, always reduce the volume level before connecting or
disconnecting headphones.