10. NAD-LINK IN, OUT
The NAD-Link connector is used to pass commands from other
units fitted with NAD-Link connectors. This allows centralised
control of a complete system, and also allows some of the basic
functions of other NAD components (such as a CD player or
cassette-deck) also equipped with NAD-Link to be controlled with
the amplifier’s remote control. To function with such other units,
connect the C730’s NAD-Link Out to the NAD-Link In on the other
unit. NAD-Link connectors can be daisy-chained, IN to OUT, so
that a whole system can be controlled from the remote control
facilities of one unit.
NOTES:
It is advisable not to connect NAD-Link if these units that
have their own built-in remote control command receiver and are
positioned together, in direct view from the remote control
handset. If you are unsure, try operating the products without
NAD-Link first; If the unit responds to the remote control
command, it will not be necessary to connect NAD-Link.
Never loop the last unit back to the first NAD unit in the NAD-Link
chain. Unplug all units from the mains before connecting or
disconnecting NAD-Link.
11. SOFT CLIPPING™
When an amplifier is driven beyond its specified power output, a
hard, distorted sound can be heard on very loud sounds. This is
caused by the amplifier cutting off or “hard clipping” the peaks of
sound that it was not designed to reproduce. The NAD Soft
Clipping™ circuit gently limits the output of the system to
minimise audible distortion if the amplifier is overdriven.
If your listening involves moderate power levels you may leave the
Soft Clipping™ switch to Off. If you are likely to play at high levels,
that could stretch the amplifier’s power capability, then switch Soft
Clip On.
12. 12V TRIGGER OUT
This output allows to remotely switch on or off ancillary
equipment such as a tuner, power amplifier, etc. which are also
equipped with a 12V trigger input. This can also be an AC outlet
power strip equipped with a 12V trigger input. The 12V trigger
output is activated whenever the unit is in switched to normal
operational mode from Stand-by or Off.
For switching Stand-by/Power On of an external component
through the C730, connect the12V-trigger output of the C730 to
the remote component’s DC input jack. The plug required is a
standard 3.5mm Mini-Jack plug (“mono”): The tip is the live or
+ connection, the shaft of the input jack is the 12V-trigger - or
ground connection.
NOTES:
Check the specifications of the Trigger input terminal on the
other components to ensure these are compatible with the C730’s
12V-trigger output. NAD components equipped with 12V input
triggers are fully compatible with the C730’s 12V output trigger.
The C730’s 12V-trigger output voltage is 12V DC. The total
maximum current must not exceed 200mA. Typically, NAD 12V
input triggers draw less than 10mA of current. Before making any
connections to any 12V trigger input or output, make sure all
components are disconnected from the AC mains.
Failure to observe the above may result in damage to the C730 or
any ancillary components attached to it. If in doubt over the
connections, installation and operation of the 12V trigger output
consult your NAD dealer.
13. SPEAKERS
Connect the right speaker to the terminals market “R +” and
“R-” ensuring that the “R+” is connected to the “+” terminal on
your loudspeaker and the “R-” is connected to the loudspeaker’s
“-” terminal. Connect the terminals marked “L+” and “L-” to the
left speaker in the same way.
Always use heavy duty (16 gauge; 1.5mm, or thicker) stranded wire
to connect loudspeakers to your NAD C730. The high-current binding
post terminals can be used as a screw terminal for cables terminating
in spade or pin sockets or for cables with bare wire ends.
BARE WIRES AND PIN CONNECTORS
Bare wires and pin sockets should be inserted into the hole in the
shaft of the terminal. Unscrew the speaker terminal’s plastic
bushing until the hole in the screw shaft is revealed. Insert the pin
or bare cable end into the hole and secure the cable by tightening
down the terminal’s bushing.
Ensure bare wire from the speaker cables does not touch the back
panel or another socket . Ensure that there is only 1/2” (1cm) of
bare cable or pin and no loose strands of speakers wire.
NOTE:
Make sure the speaker impedance is 4 ohms or more
when connecting only one pair of speakers; make sure the
speaker impedance for all speakers is over 8 ohms when
connecting two sets of speakers.
14. AC LINE CORD
Plug the AC power cord into a live AC wall socket. Make sure all
connections have been made before connecting to mains.
15. SWITCHED AC OUTLET
The AC power cord of another component may be plugged into
this accessory outlet. Components plugged into this outlet will be
switched On and Off by the POWER button on the front panel or
by the ON and STAND-BY button on the remote control handset.
NOTE:
The total power consumption of any components
connected to the AC outlets may not exceed 100 Watts.
FRONT PANEL CONTROLS (FIG 3)
1. POWER ON/OFF
Press the POWER button to switch the receiver On. The Stand-by
indicator (No. 2) over the power button will light up amber and
after a short pause will turn to green to indicate the receiver is
now ready for normal operation.
Pressing the POWER switch again will turn the unit OFF
completely, it will not respond to the remote control.
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5
QUICK START
1. Connect the speakers to the Speaker terminals and sources to
the relevant input sockets on the rear.
2. Plug in the AC power cord.
3. Press the POWER button to turn on the NAD C730.
4. Press the required input selector.
5. For radio listening, connect AM and FM antenna.
6. Press the AM/FM button to select AM or FM reception.
7. Press Preset/Tune button so that “PRESET” isn’t lit in display;
the tuner is now in Tune mode.
8. Use Preset/Tune
or
to select a station.
NOTES ON INSTALLATION
Your NAD C730 should be placed on a firm, level surface. Avoid
placing the unit in direct sunlight or near sources of heat and
damp. Allow adequate ventilation. Do not place the unit on a soft
surface like a carpet. Do not place or it in an enclosed position
such a bookcase or cabinet that may impede the air-flow through
the ventilation slots. Make sure the unit is switched off before
making any connections.
The RCA sockets on your NAD C730 are colour coded for
convenience. Red and white are Right and Left audio respectively,
and yellow for NAD Link. Use high quality leads and sockets for
optimum performance and reliability. Ensure that leads and
sockets are not damaged in any way and all sockets are firmly
pushed home.
For best performance, use quality speaker leads of 16 gauge
(1.5mm) thickness or more. If the unit is not going to be used for
some time, disconnect the plug from the AC socket.
Should water get into your NAD C730, shut off the power to the
unit and remove the plug from the AC socket. Have the unit
inspected by a qualified service technician before attempting to
use it again.
Do not remove the cover, there are no user-
serviceable parts inside.
Use a dry soft cloth to clean the unit.
If necessary, lightly dampen the cloth with soapy water. Do not use
solutions containing benzol or other volatile agents.
REAR PANEL CONNECTIONS (FIG 1)
1. FM ANTENNA
A ribbon wire FM antenna is included and should be connected to
the FM connector at the rear of the unit using the supplied
“balun” adapter (see fig 2). The ribbon aerial should be mounted
on a vertical surface and placed so that it forms a “T”.
Experiment with placement of the antenna to find the position that
gives the best signal strength and lowest background noise. An
inadequate FM signal normally results in high levels of hiss,
especially in stereo, and interference from external electrical
sources. In areas of poor FM reception, the tuner section’s
performance can be improved by using an externally mounted FM
antenna. A qualified aerial installer will be able to advise and fit a
recommended aerial for your reception conditions.
2. AM ANTENNA
An AM loop antenna is supplied with the NAD C730 and is
required for AM reception. To connect the AM antenna, first press
the keys on the Antenna terminals downwards. Insert the bare
antenna wires into the two terminal holes and push the connector
keys upwards again to secure the connection (see fig 2).
Test various positions for the antenna but always ensure the loop
is placed vertically for best reception. Placing the antenna close to
large metal items such as metal shelves or radiators may interfere
with reception.
3. DISC INPUT
Input for additional line level input signals such as CD, Mini Disc
player or the output signal from a step-up amplifier for a
turntable. Use a twin RCA-to-RCA lead to connect the auxiliary
unit’s left and right “Audio Outputs” to this input.
4. CD INPUT
Input for a CD or other line-level signal source. Use a twin RCA-
to-RCA lead to connect the CD player’s left and right “Audio
Outputs” to this input. The NAD C730 only accepts analogue
signals from your CD player.
5. VIDEO INPUT
Input for the audio signal from a stereo VCR (or stereo
TV/Satellite/Cable receiver) or other line-level audio source.
Using twin RCA-to-RCA leads, connect to the left and right “Audio
Out” of the unit to these inputs. Note: These are audio inputs only.
6. AUX INPUT
Input for additional line level input signals such as another CD
player. Use a twin RCA-to-RCA lead to connect the auxiliary unit’s
left and right “Audio Outputs” to this input.
7. TAPE 2 IN, OUT
Connections for analogue recording and playback to an audio
tape recorder of any type. Using twin RCA-to-RCA leads, connect
to the left and right “Audio Output” of the tape machine to the
TAPE 2 IN sockets for playback. Connect the left and right “Audio
Input” of the tape machine to the TAPE 2 OUT sockets for
recording.
8. TAPE 1 IN, OUT
Connections for analogue recording and playback to a secondary
audio tape recorder of any type. Using twin RCA-to-RCA leads,
connect to the left and right “Audio Output” of the tape machine
to the TAPE 1 IN sockets for playback and tape monitoring.
Connect the left and right “Audio Input” of the tape machine to the
TAPE 1 OUT sockets for recording.
9. PRE OUT
The NAD C730 allows for the connection of a different or additional
power amplifier. If you are using an external stereo power
amplifier, use a twin RCA-to-RCA lead to connect to the left and
right “Audio Input” of the Power amp to the PRE OUT 1 sockets.
NOTES:
Always turn the C730 and associated external power
amplifiers off before connecting or disconnecting anything to the
PRE-OUT sockets.
The PRE-OUT output signal will be affected by the NAD C730’s
volume and tone control settings.
GB
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NAD C730 Stereo AM/FM Receiver
