Rear Panel - NAD M51 Owner's Manual

2 CHANNEL AUDIO OUT
R BALANCED L BALANCED
L
R
UNBALANCED
1 2
ATTENTION!
Please make sure that the M51 is powered off or unplugged from the mains power source 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.
1 UNBALANCED
• Use a twin RCA-to-RCA lead to connect these sockets to the left and
right analog input of a receiver or amplifier.
2 BALANCED
• Connect these XLR connectors to the corresponding XLR input of
professional audio amplifiers.
• Ensure that proper pin configurations are followed – Pin 1: Ground,
Pin 2: Positive (signal live) and Pin 3: Negative (signal return).
3 AES/EBU
• Digital audio stream from professional audio sources like SACD/CD
Players or processors can be connected to this XLR connector.
• For high-end sources with higher sampling rates like 176kHz and
192kHz, it is highly recommended that such sources be interfaced
with the AES/EBU IN connector. The AES/EBU IN is well suited to
handle such sources with high sampling rate.
4 COAXIAL, OPTICAL
• Connect COAXIAL and/or OPTICAL to corresponding S/PDIF output
of sources such as CD, DVD or BD players, digital cable box, digital
tuners and other applicable components.
5 USB
• Using Type A to Type B cable connector (not supplied), interface
computer audio to this asynchronous Type B USB input to directly
stream 24/192 content from your PC, MAC or NAS (network-
attached storage).
• In order to stream your computer audio via M51, the "NAD USB
Audio driver" that can be downloaded from the NAD website must
be installed. For more information, refer to the NAD USB AUDIO item
in the USING THE M51 – OTHER FEATURES.
IMPORTANT NOTICE
The use of the NAD USB Audio driver downloaded through the NAD site
is done at the customer's own discretion and risk. The customer will be
solely responsible for any damage to his/her computer system or loss of
data arising out of or in connection with the use of this software driver.
In no event shall NAD be liable for any direct, indirect, incidental, special,
exemplary, or consequential damages including negligence or otherwise
arising in any way out of the use of this software driver.
DIGITAL AUDIO INPUT
AES/EBU COAXIAL OPTICAL USB HDMI 1
3 4 5
IDENTIFICATION OF CONTROLS
RS 232
HDMI 2 HDMI VIDEO OUT UPGRADE
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6 HDMI (HDMI 1,2; HDMI VIDEO OUT)
• Connect HDMI 1-2 inputs to the HDMI OUT connectors of source
components such as BD/DVD player or HDTV satellite/cable box.
• Connect the HDMI VIDEO OUT to a HDTV or projector with HDMI
input.
NOTE
HDMI 1-2 and HDMI VIDEO OUT function only as direct pass through.
WARNING
Before connecting and disconnecting any HDMI cables, both the M51
and the ancillary source must be powered OFF and unplugged from the
AC outlet. Failure to observe this practice may cause permanent damage
to all equipment connected via HDMI sockets.
7 UPGRADE
• M51 may need a software update to be in step with the latest
technology trends. Check with your authorized NAD distributors for
future software updates. Only authorized NAD distributors or service
centers are allowed to implement a software update.
• Connect to this input a USB memory stick containing the software
update. Use USB adaptor when necessary.
8 RS 232
NAD is a certified partner of AMX and Crestron and fully supports
these external devices. Check out the NAD website for information
about AMX and Crestron compatibility with NAD. See your NAD audio
specialist for more information.
• Connect this interface using RS-232 serial cable (not supplied) to
any Windows compatible PC to allow remote control of the M51 via
compatible external controllers.
• Refer to the NAD website for information about RS232 Protocol
documents and PC interface program.
9 +12V TRIGGER IN
With this input triggered by a 12V DC supply, the M51 can be switched
ON remotely from standby mode by compatible devices such as
amplifiers, preamplifiers, receivers, etc. If the 12V DC supply is cut off,
the M51 will return to standby mode.
• Connect this +12V Trigger input to the remote device's
corresponding +12V DC output jack using a mono cable with
3.5mm male plug. The controlling device must be equipped with a
+12V trigger output to use this feature.

REAR PANEL

100-240V ~ 50/60Hz
IR IN
POWER
ON
+12V
TRIGGER IN
© NAD M51
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