1 BALANCED
•
Use the BALANCED analog audio input of the M22 if the external
source to be connected has BALANCED audio output. Superior
audio quality is ensured with the distinctive noise reduction
capability of BALANCED connection with XLR jacks.
•
With BALANCED as the selected audio input, ensure that the SELECT
switches for both L (Left) and R (Right) channels of ANALOG AUDIO
INPUT are set to BALANCED.
PIN CONFIGURATION OF BALANCED XLR JACK
Pin 1:
Ground
Pin 2:
Positive (signal live)
Pin 3:
Negative (signal return)
IMPORTANT NOTES
•
Always turn OFF the M22 and other components in the system before
connecting or disconnecting anything to the BALANCED audio input
jacks.
•
Before switching ON the M22 from standby mode for the first time, make
sure that the volume control of the external source is set to minimum
level position. This prevents inadvertently beginning a session at
excessive volume.
2 SINGLE-ENDED
•
Use single-ended analog audio input for sources (preamplifiers or
processors) that are not equipped with BALANCED analog audio
output.
•
With SINGLE-ENDED as the selected audio input, ensure that the
SELECT switches for both L (Left) and R (Right) channels of ANALOG
AUDIO INPUT are set to SINGLE-ENDED.
3 SELECT
•
Use this switch to select the type of analog audio input.
•
SELECT switch settings
Right position: SINGLE-ENDED input is selected.
Left position: BALANCED input is selected.
4 PROTECT
•
When the M22 goes to protect mode, the PROTECT LED will turn
red.
PROTECT LED INDICATOR COLORS
CONDITION
PROTECT LED COLOR
POWER INDICATOR
(NAD LOGO) COLOR
Normal operation
Green
Bright/white
Overheat or short circuit
Red
Red
PROTECT MODE
If the PROTECT LEDs turn red, this indicates that the protection circuitry
of the M22 had been engaged. Immediately press the Standby button,
turn off Power switch and then unplug the mains power cord from the
mains power source. Undertake the following
a
Check if all speaker wires are connected correctly and that none of
the wires are damaged, causing a short circuit.
b
Another cause may be excessive heat build-up inside the amplifier.
Make sure there is adequate ventilation around the amplifier and
that none of its ventilation slots, top or bottom are blocked. After
the M22 has cooled down, it will function normally again.
c
Do not attempt to use the M22 if the PROTECT LED or Power
indicator remained illuminated in red despite the checks mentioned
above. Bring the M22 to an authorized NAD service center for
proper inspection, testing and consequent repair if necessary.
IDENTIFICATION OF CONTROLS
REAR PANEL
GND
POWER
ON
RIGHT SPEAKERS
ANALOG AUDIO INPUT
LEFT SPEAKERS
R
L
ANALOG AUDIO INPUT
100-240V 50/60Hz
+12V
TRIGGER
IN
LED
LEVEL
© NAD M22
11
3
3
4
4
5
6
7
9
8
10
11
1
1
2
2
ATTENTION!
Ensure that the M22 is unplugged before making any connections. It is also advisable to power-down or unplug all associated components while making
or breaking any signal or AC power connections.
7
ENGLISH
FR
ANÇ
AIS
ESP
AÑOL
IT
ALIANO
DEUT
SCH
NEDERL
ANDS
SVENSK
A
РУ
ССКИЙ
