Naim POWER SUPPLIES owners manual

OWNERS MANUAL

POWER SUPPLIES

ENGLISH DEUTSCH FRANÇAIS ITALIAN0

Contents

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 all mains powered
equipment:

WARNING

THIS APPARATUS

MUST BE EARTHED

Page Section

E1 1 Connections
E1 2 Mains Power
E2 3 General Installation
E3 4 CD555PS, Supercap and XPS
E4 5 Hi-Cap, FlatCap XS, NAPSA and NAPSC
E5 6 Power Supply Specifications
E5 7 Declarations of Conformity

NOTE

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. 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.

Introduction

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
all power supplies. It begins with some general installation notes and statutory safety
warnings. Product specific information begins in Section 4.

1 Connections

It is important for both safety and performance that
the standard cables supplied are not modified.

1.1 Interconnect Cables

If options are available with your equipment and
installation, DIN interconnect sockets should be used in
preference to RCA Phono sockets. One end of each Naim
interconnect cable is marked with a band to establish
its correct orientation. The band denotes the end that
connects to the signal source.

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.

1.2 Loudspeaker Cables

Loudspeaker cables are vitally important. They should
each be at least 3.5 metres long and of equal length. The
recommended maximum is normally 20 metres although
longer cables may be viable with some Naim amplifiers.

Some Naim amplifiers are designed only to work with
Naim loudspeaker cable and using alternatives may
degrade the performance or even damage the amplifier.
Other Naim amplifiers can be used with any high quality
loudspeaker cable although we recommend that Naim
loudspeaker cable is used. Naim loudspeaker cable is
directional and should be oriented so that the printed
arrow points towards the speakers. The Naim loudspeaker
connectors supplied are designed to comply with
European safety legislation and must be used.

Contact your local retailer or distributor for further advice
on loudspeaker cables and connectors.

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 itself.

2.3 N o n - 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 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.

Do not substitute alternative mains leads and plugs to
those supplied. They are selected to offer the best possible
performance.

E1

Introduction

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.

Some speakers and stands are intended to be used with
floor spikes fitted. Care should be taken when siting and
moving them to avoid personal injury or damage to
cables and surfaces. Floor protectors are available from
your local dealer or distributor to protect non carpeted
floors.

3.2 Switching On

Source components and power supplies should be
switched on before the 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. In situations of extreme
radio interference Naim equipment may be unsuitable.

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 a lightning strike. For complete
protection all mains plugs and any aerial cables should be
disconnected when not in use.

3.6 Problems?

Consumer protection varies from country to country. In
most territories a retailer must be prepared to take back
any equipment he has sold if it cannot be made to work
satisfactorily. A problem may be due to a fault in the
system or its installation so it is essential to make full use of
your dealer’s diagnostic skills. Please contact your local
distributor, or Naim Audio directly, if any difficulties cannot
be resolved.

Some Naim equipment is made in special versions for
different territories and this makes it impracticable to
arrange international guarantees. Please establish the
local guarantee arrangements with your retailer. Contact
Naim Audio directly for help and advice if necessary.

3.7 Service and Updates

It is essential that repairs and updates are only carried
out by an authorised Naim retailer or at the factory by
Naim itself. Many components are custom made, tested
or matched and appropriate replacements are often
unobtainable from other sources.

Direct contact to Naim for service or update information
should be made initially through Customer Services:

Tel: [phone]
Email: [e-mail]

Please quote the product serial number (found on its rear
panel) in all correspondence.

E2

CD555PS, Supercap and XPS Power Supplies

4 Power Supply Installation

Power supplies should be installed on an equipment rack intended for the purpose in
their final location before connecting cables or switching on. Ensure that power amplifiers
are switched off and the preamplifier volume is turned down before power supplies are
switched on. The power buttons are located on the front panel. Connection diagrams will
be found in the appropriate preamplifier or CD player owners manual.

Some power supplies are heavy and care should be taken when lifting or moving them.
Make sure that the surface on which they are to be placed can support their weight.

4.1 CD555PS Rear

Note: The CD555PS can be used to power the CD555,

mains input
and fuse

CDS3 and CDX2 CD players. In the case of the CDS3 and

CDX2 only Output 1 is used,

4.2 Supercap Rear

mains input
and fuse

4.3 XPS Rear

+ve
ch2

Socket 1

-ve

+ve

ch1

socket

NAC 252

only

socket

2

+ve

nc

3
socket
1

Socket 2

+ve

nc

-ve

socket
4

socket

NAC 252,

5

SuperLine

or SNAXO

Socket 3, 4 & 5

ch2

-ve

only

ch1

nc

mains input and fuse

Note: The XPS can be used to power the CDS3 and CDX2

CD players. It can not be used to power the CD555.

multiple power output

E3

Hi-Cap, FlatCap XS, NAPSA, and NAPSC Power Supplies

5 Power Supply Installation

Power supplies should be installed on an equipment rack intended for the purpose in
their final location before connecting cables or switching on. Ensure that power amplifiers
are switched off and the preamplifier volume is turned down before power supplies are
switched on. Connection diagrams will be found in the appropriate preamplifier, tuner or
CD player owners manual.

Many power supplies are heavy and care should be taken when lifting or moving them.
Make sure that the surface on which they are to be placed can support their weight.

5.1 Hi-Cap Rear

mains input
and fuse

socket 1

5.2 FlatCap XS Rear

power
switch

mains input
and fuse

socket 2

socket 3

socket 4

Socket 1, 2 & 3

ch2

-ve

ch1

nc

power
out A

+ve
ch2

signal
out A

Socket 4

-ve

signal
out B

+ve

ch1

signal
out C

power

out B

signal
out D

E4

5.3 NAPSA Rear

mains input and fuse

power output

+ve
ch2

5.4 NAPSC Rear

mains input and fuse

Power Out

A & B

+ve

ch1

-ve

output lead to preamplier

or Headline

ch2

Signal Out

A, B, C & D

-ve

ch1
nc

Power Supplies

6 Power Supply Specifications

Product CD555PS Supercap XPS Hi-Cap FlatCap XS NAPSA NAPSC

Outputs: ±22V 13 x 24V ±22V 2 x 24V 4 x 24V 116Vac 18.5V

±10V 2 x 12V ±10V
2 x 15V, 12V 2 x 15V

Dimensions: 87 x 432 x 314 87 x 432 x 314 87 x 432 x 314 87 x 207 x 314 70 x 432 x 304 87 x 207 x 314 57 x 121 x 187
(H x W x D, mm)
Weight: 15.7kg 11.6kg 12.4kg 7.35kg 5.4kg 6.75kg 2.1kg
Mains Supply: 100-120V or 220-240V, 50/60Hz

7 Declaration of conformity to appropriate standards

Manufacturer Naim Audio Limited, Southampton Road, Salisbury, England, SP1 2LN
Products CD555PS, Supercap, XPS, Hi-Cap, FlatCap XS, NAPSA, NAPSC
Safety EN 60065
EMC EN55013 - Sound and television broadcast receivers and associated equipment.

EN55020 - Electromagnetic immunity of broadcast receivers and associated equipment.
EN61000-3-2 - Limits for harmonic current emissions.
EN61000-4-2 - Testing and measurement. Electrostatic discharge immunity.

E5

BEDIENUNGSANLEITUNG

NETZTEILE

ENGLISH DEUTSCH FRANÇAIS ITALIAN0

SICHERHEITSHINWEISE

Für die Einhaltung der europäischen Sicherheitsnormen ist

es unabdingbar, dass die mit Verstärkern und Lautsprechern

gelieferten Naim-Stecker verwendet werden.

Lassen Sie unter keinen Umständen zu, dass Ihre
Naim-Produkte ohne Rücksprache mit Naim Audio,

der zuständigen Vertriebsgesellschaft oder Ihrem

Händler modifiziert werden. Ihre Garantie erlischt,
wenn unauthorisierte Modifikationen an den Produkten
vorgenommen werden.

Sorgen Sie dafür, dass keine Flüssigkeiten auf elektrische
Geräte tropfen oder spritzen können und keine mit
Flüssigkeit gefüllten Behälter wie etwa Blumenvasen auf den
Geräten stehen.

Zu Ihrer eigenen Sicherheit sollten Sie Naim-Produkte
niemals öffnen, ohne sie zuerst vom Netz zu trennen.

Achtung: Geräte der Schutzklasse I dürfen nur an einer
Netzsteckdose mit geerdetem Schutzleiter angeschlossen
werden.

Wenn der Netz- oder ein Gerätestecker als Trennvorrichtung
verwendet wird, muss der Stecker stets leicht erreichbar
sein. Ziehen Sie den Netzstecker aus der Steckdose, um das
Gerät sicher vom Netz zu trennen.

Alle netzbetriebenen Geräte tragen folgende Aufschrift:

Inhalt

Seite Abschnitt

D1 1 Anschlüsse
D1 2 Netzanschluss
D2 3 Allgemeine Installation
D3 4 CD555PS, Supercap und XPS
D4 5 Hi-Cap, FlatCap XS, NAPSA und NAPSC
D5 6 Netzteilspezifikationen
D5 7 Konformitätserklärung

ACHTUNG

DIESES GERÄT

MUSS GEERDET WERDEN.

HINWEIS:

Dieses Gerät wurde getestet und entspricht den

entsprechenden EMV- und Sicherheitsnormen sowie, sofern

anwendbar, den Grenzwerten für ein digitales Gerät der
Klasse B gemäß Teil 15 der FCC-Regeln.

Diese Grenzwerte sind dafür vorgesehen, angemessenen
Schutz gegen schädliche Interferenzen in einem Wohngebiet
zu bieten. Dieses Gerät erzeugt, nutzt und strahlt Energie
in Form von Funkfrequenzen ab und kann, wenn es nicht
in Übereinstimmung mit der Anleitung installiert wird, zu
störenden Interferenzen in der Funkkommunikation führen. Es
gibt jedoch keinerlei Garantie, dass es bei einer bestimmten

Installation nicht zu Interferenzen kommen wird. Verursacht

dieses Gerät störende Interferenzen für den Radio- oder
Fernsehempfang, die durch das Aus- und Wiedereinschalten
erkannt werden können, empfehlen wir dem Anwender,
eine bzw. mehrere der folgenden Maßnahmen zu ergreifen,
um die Interferenz zu korrigieren:

• Richten Sie die Empfangsantenne neu aus oder versetzen

Sie diese.

• Vergrößern Sie den Abstand zwischen dem Gerät und

dem Empfänger.

• Schließen Sie das Gerät an einen Ausgang eines anderen

Stromkreises, an den der Empfänger nicht angeschlossen
ist.

• Bitten Sie Ihren Naim-Händler oder einen erfahrenen
Radio/TV-Techniker um Hilfe.