NAPSC, STAGELINE, HEADLINE
OWNERS MANUAL
ENGLISH
SAFETY INSTRUCTIONS
In order to comply with current European
safety regulations it is essential that the Naim
loudspeaker connectors supplied with amplifiers
and loudspeakers are used.
Do not under any circumstances allow anyone
to modify your Naim equipment without first
checking with the factory, your retailer, or your
distributor. Unauthorised modifications will
invalidate your guarantee.
Equipment must not be exposed to dripping or
splashing and no objects filled with liquid, such
as vases, should be placed on the equipment.
For your own safety do not under any
circumstances open Naim equipment without
first disconnecting it from the mains.
Warning: an apparatus with CLASS I
construction shall be connected to a mains
socket outlet with a protective earthing
connection.
Where the mains plug or an appliance coupler
is used as the disconnect device, the disconnect
device shall remain readily operable. To
disconnect the equipment from the mains
remove the mains plug from the mains outlet.
The following label is attached to the NAPSC:
WARNING
THIS APPARATUS
MUST BE EARTHED
However, there is no guarantee that interference
will not occur in a particular installation. If this
equipment does cause harmful interference
to radio or television reception, which can be
determined by turning off and on, the user is
encouraged to try to correct the interference by
one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the
equipment and the receiver.
• Connect the equipment into an outlet on
a circuit different from that to which the
receiver is connected.
• Consult your Naim retailer or an experienced
radio/TV technician for help.
Contents
Page Section
1 1 Connections
2 Mains Power
2 3 General Installation
4 4 Product Introduction
5 NAPSC
5 6 Headline
6 7 Stageline
8 8 Declaration of Conformity
This equipment has been tested and found
to comply with the relevant EMC and Safety
Standards, and, where applicable, also complies
with the limits for a class B digital device,
pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable
protection against harmful interference in
a residential installation. This equipment
generates, uses and can radiate radio frequency
and, if not installed and used in accordance with
the instructions, may cause harmful interference
to radio communications.
Accessories
Naim Audio products are conceived with
performance as the top priority. Careful
installation will help ensure that their full
potential is achieved. This manual covers the
NAPSC power supply, the Headline headphone
amplifier and the Stageline phono amplifier.
It begins with general installation notes and
statutory safety warnings. Product specific
information begins in Section 5.
1 Connections
It is important for both safety and performance
that any standard cables supplied are not
modified.
1.1 Analogue Audio Interconnect
Cables
If options are available with your equipment
and installation, DIN interconnect sockets
should be used in preference to Phono sockets.
One end of each Naim audio interconnect
cable is marked with a band to establish its
correct orientation. The band denotes the
end that connects to the signal source. Naim
Hi-Line interconnect cables will provide the
best results.
Audio interconnect plugs and sockets should
be kept clean and free from corrosion. The
easiest way to clean them is to switch off the
equipment, pull the plugs out of their sockets,
and push them back in again. Contact cleaners
and “enhancers” should not be used as the film
they deposit may degrade the sound.
2 Mains Power
Where fused plugs are used 13 amp fuses
should be fitted. Fuses of a lower rating will
fail after a period of use. Do not wire voltage
dependent resistors or noise suppressors into
mains plugs. They degrade the mains supply
and the sound.
2.1 Mains Plug Wiring
In some territories a mains plug may need to
be fitted to the supplied mains lead. As the
colours of the wires in the mains lead may
not correspond with the coloured markings
identifying the terminals in the plug proceed
as follows:
The wire coloured GREEN and YELLOW must
be connected to the terminal in the plug
marked by the letter E or by the safety earth
symbol or coloured GREEN or GREEN and
YELLOW.
The wire coloured BLUE must be connected to
the terminal in the plug marked with the letter
N or coloured BLACK.
The wire coloured BROWN must be connected
to the terminal in the plug marked with the
letter L or coloured RED.
2.2 Equipment Fuses
Mains powered Naim Audio equipment is
fitted with a mains fuse on the rear panel
adjacent to the mains input socket. Replace it
if necessary only with the spare fuse supplied
or with an identical fuse. Repeated failure
of the fuse points to a fault that should be
investigated by your retailer or Naim Audio.
2.3 Non-rewirable Mains Plugs
If a non-rewirable plug is cut from a mains
lead (for whatever purpose) the plug MUST
be disposed of in a way to render it totally
useless. Considerable shock hazard exists if
the cut-off plug is inserted into a mains outlet.
2.4 Mains Circuits and Cables
A hi-fi system usually shares a mains circuit
with other household equipment, some of
which can cause distortion of the mains
waveform. This distortion can in turn lead to
mechanical hum from mains transformers.
Some Naim transformers are large in size,
making them relatively sensitive to such
1
Accessories
distortion, and it may be necessary to take
account of transformer hum when siting your
equipment.
Transformer hum is not transmitted through the
speakers and has no effect on the performance
of the system; however, a separate mains
circuit may reduce it. Such a circuit (ideally
with a 30 or 45 Amp rating) will also generally
improve system performance. Advice on the
installation of a separate mains circuit should
be sought from a qualified electrician.
Use only the mains leads and plugs supplied or
the Naim Power-Line mains cable.
3 General Installation
Naim equipment is designed to offer the
finest performance possible avoiding
compromise wherever practical. This can lead
to circumstances that may be unfamiliar. The
notes that follow contain advice specifically
related to Naim equipment as well as more
general warnings about the use of domestic
audio products. Please read them carefully.
3.1 Siting The Equipment
In order to reduce the risk of hum audible from
the loudspeakers, power supplies and power
amplifiers should be located a reasonable
distance away from other equipment. The
maximum separation distance for connected
equipment is that allowed by the standard
interconnect lead.
Some Naim equipment is extremely heavy.
Check the weight of the equipment prior to
lifting and if necessary use more than one
person so that it can be moved safely. Ensure
that your equipment rack or table can easily
support the weight and is stable.
3.2 Switching On
Source components and power supplies should
be switched on before power amplifiers.
Always switch amplifiers off and wait a minute
before connecting or disconnecting any leads.
Always use the power switch on the product
rather than a mains outlet switch.
A “thump” may be heard from the loudspeakers
as power amplifiers are switched on. This is
normal, will not cause any loudspeaker damage
and does not point to any fault or problem.
A mild “pop” may also be heard shortly after
equipment is switched off.
3.3 Running In
Naim equipment takes a considerable time
to run in before it performs at its best. The
duration varies, but under some conditions
the sound may continue to improve for
over a month. Better and more consistent
performance will be achieved if the system is
left switched on for long periods. It is worth
remembering however that equipment left
connected to the mains can be damaged by
lightning.
3.4 Radio Interference
In some circumstances, depending on where
you live and the earthing arrangements in your
home, you may experience radio frequency
interference. Controls on broadcasting in
some territories allow very high levels of
radio frequency radiation and both the
choice and exact siting of equipment may
be critical. Susceptibility to radio frequency
interference is related to the wide internal
bandwidth necessary for high sound quality. A
radio frequency filter kit is available for some
Naim equipment but sound quality will be
progressively compromised as more elements
of the kit are fitted.
3.5 Lightning Precautions
Your Naim hi-fi system can be damaged
by lightning and should be turned off and
disconnected from the mains when there is
risk of lightning. For complete protection all
mains plugs and any aerial cables should be
disconnected when not in use.
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