ENGLISH
IDENTIFICATION OF CONTROLS
REAR PANEL
8
+12V TRIGGER IN
• With this input triggered by a 12V DC supply, the C399 can be
switched ON remotely from standby mode by compatible devices
such as ampliers, preampliers, receivers, etc. If the 12V DC supply
is cut o, the C399 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.
NOTE
If there is a stereo jack connected to +12V TRIGGER IN, the C399 cannot
be powered ON/OFF using the front panel Standby button or SR 9’s ON/
OFF buttons. The stereo jack has to be unplugged to resume normal
powering up of the unit via front panel Standby button or SR 9’s ON/OFF
buttons.
7 HDMI ARC/eARC
• Connect to TV that supports HDMI Control (CEC) and Audio
Return Channel (ARC) or Enhanced Audio Return Channel (eARC)
functions. HDMI CEC, ARC or eARC functions are possible if external
devices that also support these features are interconnected with
C399 via HDMI connection.
• Use HDMI cable to connect HDMI ARC/eARC to corresponding
HDMI ARC/eARC port of TV. Use HDMI cable that has Ultra High
Speed HDMI Certication Label to enjoy support for larger
bandwidth and high bitrate format.
• With ARC/eARC connection established, C399 will output audio
signal from TV.
IMPORTANT
• Ensure that the audio setting/format of ARC/eARC-connected devices to
C399 is set to PCM only.
• Only audio output signal from TV is supported by HDMI ARC/eARC port.
• There is no video output at HDMI ARC/eARC port of C399.
8 OPTICAL 1-2/COAXIAL 1-2
• Connect to the corresponding optical and coaxial digital output
of sources such as CD or BD/DVD players, digital cable box, digital
tuners and other applicable components.
9 PHONO
• Input for a Moving Magnet (MM) phono cartridge only. Connect the
twin RCA-to-RCA lead from your turntable to this input if you are
using a Moving Magnet cartridge.
• If your turntable includes a ground/earth lead, it can be connected
to the Ground Terminal (refer to item 18 below).
10 LINE 1-2 IN
• Input for line level sources such as CD player, tuner or any
compatible devices. Use a twin RCA-to-RCA lead to connect the
source device’s left and right “Audio Output” to these line input
ports.
11 PRE OUT
• Use dual RCA-to-RCA cable to connect PRE-OUT to the
corresponding analog audio input of compatible devices such
as ampliers, receivers or other applicable devices. This makes it
possible to use the C399 as a pre-amplier to such devices.
12 SUB OUT 1, 2
• Connect SUBW 1 and/or 2 to the low level input of corresponding
powered subwoofer.
• Anything below your crossover setting (accessible via BluOS
Controller App with optional MDC2 BluOS D installed) will be sent
out via SUB OUT. Default crossover setting is 80Hz.
13 SPEAKERS A, B
• The C399 has two sets of SPEAKER connections (SPEAKERS A and
SPEAKER B) that are identical in function (parallel connection).
• Connect C399’s Right speaker terminals marked “R +” and “R-” to
the corresponding “+” and “-“ terminals of your designated right
speaker. Repeat the same for C399’s Left speaker terminals and
corresponding left speaker.
• Double check the speaker connections before powering up the
C399.
IMPORTANT NOTES
• The blue terminals must never be connected to ground (earth).
• Never connect the blue terminals together or to any common ground
device.
• Do not connect the output of this amplier to any headphone adapter,
speaker switch or any device that uses common ground for left and
right channels.
14 POWER
• Supplies the AC mains power to C399.
• When the POWER switch is set to ON position, the C399 goes to
standby mode as shown by the amber status condition of the front
panel Power indicator.
• Press the front panel Standby button or SR 9’s remote control’s [ON]
button to switch ON the C399 from standby mode.
• If you do not intend to use the C399 for long periods of time (such
as when on vacation), switch o the POWER switch.
• With POWER switched o, neither the front panel Standby button
nor SR 9 remote control’s [ON] button can activate the C399.
15 AC MAINS INPUT
• The C399 comes supplied with two separate mains power cords.
Select the mains power cord appropriate for your region.
• Before connecting the plug to the mains power outlet, ensure that
it is rmly connected to the C399’s AC Mains input socket.
• Always disconnect the mains power plug from the mains power
outlet before disconnecting the cable from the C399’s AC Mains
input socket.
16 FUSE HOLDER
• Only qualied NAD service technicians can have access to this fuse
holder. Opening this fuse holder may cause damage thus voiding
the warranty of your C399.
17 GROUND TERMINAL
• Ensure that the C399 is plugged-in to a grounded AC wall outlet.
• If necessary, use this ground terminal to connect to ground a
phono or turntable source for PHONO input.
• If a separate earth ground is necessary, use this terminal to ground
your C399. The C399 can be connected to ground by connecting
a ground lead wire or similar to this terminal. After insertion, tighten
the terminal to secure the lead.