8
Spade Lug or Wire Connections:
4. Connect the Loudspeaker hookup cables to the
MI347 Output Terminal being careful to observe
the correct polarities, making sure to match up
channel designation with Loudspeaker location.
Insert the spade lug connector or prepared section
of the cable end into the terminal side access hole.
Then tighten the terminal cap until the cable is
firmly clamped into the terminals so the lugs or
wire cannot slip out. Refer to figures 6, 7 and 8.
WARNING: Loudspeaker terminals are hazardous
live and present a risk of electric shock.
For additional instruction on making
Loudspeaker Connections contact
your McIntosh Dealer or McIntosh
Technical Support.
5. Connect the MI347 power cord to an active AC
outlet.
Figure 6
Figure 7
Figure 8
Channel Operational Indication
The MI347 Front Panel has seven Tri-Color LEDs.
The LEDs indicate the current functioning status for
each of the seven channels.
MI347 Channel Operation Functions
LED COLOR
Functional Status
LED not
Illuminated
Indicates when the Channel is OFF
Green
Indicates when the Channel is ON with an
Audio Signal Present and Normal Operation for
the Channel exists
Amber
Indicates when maximum Power Output for the
Channel has occured with prevention of Audio
Clipping
Red
Indicates current limit or short circuit for the
Channel Loudspeaker Output Connection
Power On
The LED Power ON Indicator illuminates to indicate
the MI347 is connected to AC Power. To switch
ON the MI347, press the POWER Push-button on
the Front Panel or switch On the Audio Source
Component providing there is a Power Control Cable
Connection to the MI347. Refer to figure 20.
Notes: 1. It will take about 6 seconds for initialization
of the internal circuitry to take place on the
MI347 when switched On.
2. There must be a power control connection
between the MI347 and the Audio Source
Component in order for the Remote Control
Operation Power ON/OFF to function.
3. When the MI347 is receiving a Power Control
ON Signal, the Front Panel POWER Push-
Button becomes inactive.
Auto Off Function
The MI347 incorporates Power Save Circuitry to
automatically place the MI347 into the power saving
Standby Mode approximately 30 minutes after there
has been an absence of an audio input signal on all
seven channels.
When there is a Power Control Connection be-
tween the MI347 and a Preamplifier or Source Com-
ponent, the AUTO OFF Function is bypassed.
How to Operate
Figure 20
How to Operate
