OPERATION
Issue 2
Page 8 of
13
Switching on.
When first connected to a mains supply the orange STDBY LED should light. This indicates the unit is in low
power standby mode and that mains power is connected. (if it is not on, check mains wall socket switch is on, if
present.)
To turn the unit on, press the POWER STBY button once. The orange STBY LED should go out, and the blue
POWER LED comes on. The M1 PWR is now fully switched on and ready to play music
Modes of operation
The unit features two modes of operation:
STEREO mode allows the unit to be used as a standard stereo amplifier. For this mode the STEREO/MONO
switch on the back panel should be in STEREO position, and MONO LED on the front panel will be out.
MONO mode turns the unit into a more powerful monoblock. For a stereo system using M1 PWR in this way,
two
units will be required. For this mode the STEREO/MONO switch on the back panel should be in MONO
position, and MONO LED on the front panel will be lit.
The unit does not allow “HOT” or “LIVE” mode switching. This is to avoid potential speaker damage. The state
of the switch is only read at switch-on (from standby). If change of mode is required it is necessary to switch the
unit to standby
first
, change the switch and connection(s), then when the unit is switched on again the new
mode will take effect as indicated by the MONO LED.
Setup (Stereo mode)
Speaker Connections
Make sure the unit is switched OFF.
Check the switch on back panel is in STEREO position.
Connect the left hand speaker wires to the LEFT SPEAKER OUTPUT terminals/binding posts. Observe polarity
of the cables and connections:
Connect the + wire to red terminal, the – wire to black terminal. Ensure the same connection order is used at the
speaker
end of the cable. Check there are not stray strands of speaker wire and/or plugs that are causing short
circuit by touching.
Connect the right hand speaker wires to the RIGHT SPEAKER OUTPUT terminals/binding posts. Observe
polarity of the cables and connections:
Connect the + wire to red terminal, the – wire to black terminal. Ensure the same connection order is used at the
speaker
end of the cable. Check there are not stray strands of speaker wire and/or plugs that are causing short
circuit by touching.
Input Connections
Connect left and right INPUTs to respective outputs of preamplifier or other preceding device..
Switch set to STEREO.
Stereo mode audio leads connection diagram.
(Trigger and mains leads omitted for clarity).
RIGHT
Speaker
LEFT
Speaker
+
-
+
-
LEFT output
Pre-amplifier
RIGHT output
