Naim Audio Hi-CAP Owners manual

Download

W O R L D C L A S S H I - F I

O W N E R S M A N U A L

Preamplifiers, Integrated Amplifier, Power Amplifiers, Power Supplies

Contents

Page

Section

Equipment Installation

Audio Connections

Mains Power Connection

General Installation

Preamplifiers

NAC 552

Installation and Operation

NAC 552 Connection Diagrams

NAC 552 Specification

NAC 252

Installation and Operation

NAC 252 Connection Diagrams

NAC 252 Specification

NAC 282

Installation and Operation

NAC 282 Connection Diagrams

NAC 282 Specification

NAC 202

Installation and Operation

NAC 202 Connection Diagrams

NAC 202 Specification

NAC 112x

Installation and Operation

NAC 112x Connection Diagrams

NAC 112x Specification

Integrated Amplifier

NAIT 5i

Installation and Operation

NAIT 5i Connection Diagrams

NAIT 5i Specification

Remote Handsets

Flash

Remote Handset

NARCOM 3

Remote Handset

2325iCom

Remote Handset

Power Amplifiers

NAP 500

Installation and Operation

NAP 500 Connection Diagram

NAP 500 Specification

NAP 300

Installation and Operation

NAP 300 Connection Diagram

NAP 300 Specification

NAP 250

Installation and Operation

NAP 250 Connection Diagram

NAP 250 Specification

NAPV 145

Installation and Operation

NAV 145 Connection Diagram

NAV 145 Specification

NAP 200

Installation and Operation

NAP 200 Connection Diagram

NAP 200 Specification

NAP 150x

Installation and Operation

NAP 150x Connection Diagram

NAP 150x Specification

NAPV 175

Installation and Operation

NAPV 175 Connection Diagram

NAPV 175 Specification

NAP 6-50

Installation and Operation

NAP 6-50 Connection Diagram

NAP 6-50 Specification

Power Supplies

Supercap, XPS, Hi-Cap

Installation and Connection

Flatcap 2, NAPSA, NAPSC

Installation and Connection

Power Supply Specifications

Declaration of Conformity

with amplifiers and loudspeakers are used.

Warning: an apparatus with CL ASS I construction shall be

Where the mains plug or an appliance coupler is used as the

The following label is attached to all mains powered

This equipment has been tested and found to comply with the

These limits are designed to provide reasonable protection

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

this equipment does cause harmful interference to radio or

television reception, which can be determined by turning

from that to which the receiver is connected.

technician for help.

W A R N I N G

THIS APPARATUS

MUST BE EARTHED

2 Audio Connections

It is important for both safety and performance that

the standard cables supplied are not modified.

2.1 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 tend to deposit may degrade the

sound.

2.2 Loudspeaker Cables

Loudspeaker cables are vitally important and your dealer should

make them up to suit your installation. The cables 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. Contact your

dealer or Naim Audio for advice.

Many Naim amplifiers are designed only to work with Naim

loudspeaker cable and using alternatives may degrade the

performance or even damage the amplifier. Naim loudspeaker

cable is directional and should be oriented so that the printed

arrow points towards the speakers. The amplifier/loudspeaker

connectors supplied are designed to make a robust electro-

mechanical connection and to comply with European safety

regulations. They should be used in preference to alternatives.

3 Mains Power Connection

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.

Introduction

This manual covers all Preamplifiers, the Nait 5i Integrated Amplifier,

1 Equipment Installation

Normally your Naim Audio equipment will have been installed by the dealer who sold

it to you - even if you live outside their immediate vicinity. In any event however

your dealer is responsible for making sure that the system sounds as it should.

Information given here is not intended to reduce this responsibility in any way.

3.1 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 which is coloured

must be

connected to the terminal in the plug which is marked by the

letter

or by the safety earth symbol or coloured

YELLOW

The wire which is coloured

must be connected to the

terminal in the plug which is marked with the letter

coloured

The wire which is coloured

must be connected to the

terminal in the plug which is marked with the letter

or coloured

3.2 Non-rewirable Mains Plugs

If a non-rewirable plug is cut from a mains lead (for whatever

purpose) the plug

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.

3.3 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 lead to mechanical hum

from amplifier and power supply transformers. Naim transformers

are large in size with heavy gauge windings, making them

relatively sensitive to such distortion and it may be necessary to

take account of any 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 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.

4 General Installation

Naim equipment is designed to offer the finest sound

quality 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.

4.1 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. Ensure that your

equipment rack or table can support the weight and is stable.

4.2 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 power amplifiers

are switched off.

4.3 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.

4.4 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.

Systems incorporating moving coil phono preamplifiers and

active crossovers are more likely to suffer. 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.

4.5 Non-standard Cables

Use of non-standard speaker cables or interconnects on some

products may invalidate your guarantee.

4.6 Lightning Precautions

Your Naim hi-fi system can be damaged by lightning. Power

amplifiers are particularly at risk and should be turned off and

disconnected from the mains when there is risk of lightning

strike. For complete protection all mains plugs and any aerial

cables should be disconnected when not in use.

4.7 Liquid Precautions

Equipment must not be exposed to dripping or splashing and no

objects filled with liquid, such as vases, should be placed on the

equipment.

4.8 Equipment Fuses

Mains powered Naim Audio equipment is fitted with a mains

input fuse on the rear panel adjacent to the mains input socket.

Replace it if necessary only with the spare fuse supplied or

with identical fuses. Repeated failure of this fuse points to an

equipment or system fault that should be investigated by your

dealer or at the factory by Naim itself.

4.9 Problems?

Consumer protection varies from country to country. In

most territories a dealer 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 dealer. Contact Naim Audio directly for

help and advice if necessary.

4.10 Repairs and Updates

It is essential that repairs and updates are only carried out

by an authorised Naim dealer 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 the Service Department:

Tel:

Email:

service@naim-uk.com

Please quote the product serial number (found on its rear panel)

in all correspondence.

Introduction

NAC 552

5 Installation and Operation

The NAC 552 preamplifier does not incorporate an internal power supply and can be

used only in conjunction with the NAC 552PS power supply. Diagram 6.3 illustrates

connection of the NAC 552 to its power supply.

The four transit screws on the underside of the NAC 552 case should be removed before

use and must be replaced if the unit is to be re-packed and shipped. These transit

screws must not be used in any other Naim product. Do not invert the NAC 552 once the

transit screws are removed.

5.1 Source Inputs and Record Outputs

The input selector buttons arranged along the

bank

select the

source

signal to be routed to the power amplifier

and the loudspeakers. Below them, in the

bank, are a

corresponding array of buttons which select the signal to be

routed to the preamplifier’s

outputs.

These separate source and record sections enable one source (a

CD player, for example) to be listened to whilst the output from

another (say, the tuner) is simultaneously selected for recording.

It is possible to lock the record controls and prevent

accidental de-selection during recording. Record-lock is switched

on or off by pressing the

source mono

button four times within six

seconds.

Indicators are fitted to the NAC 552 rear panel above each input

socket. These indicators illuminate to provide information on

input selection and on input mapping setup and programming.

5.2 Input Socket Mapping (Program Mode)

Any NAC 552 source input socket can be selected by any

button. For example, while the NAC 552 default setup is for

the CD input button to select input socket No. 2, custom

programming of

could enable any input socket to

be selected by pressing the CD button. Mapping of each record

button follows the corresponding source button.

Input mapping setup is accessed through the NAC 552 program

mode. To switch into program mode press and hold the

key

on the remote handset (in preamplifier mode). Program mode is

indicated by a flashing indicator on the volume control and the

record select indicators extinguishing. If no function is operated

within five minutes of entering program mode the NAC 552 will

return to normal mode automatically.

Any of the six source buttons on the front panel can be mapped

to any of the nine stereo inputs (seven DIN sockets and two RCA

Phono socket pairs) on the rear panel. In program mode, as a

source input is selected, a rear panel indicator will illuminate to

designate the socket to which it is mapped.

To change the input socket mapped to a source button, select

the source button and use the front panel

and

buttons to scroll along the input sockets. If the input

socket selected is already mapped to a source button the

indicator above the socket will flash repeatedly. It is possible to

map one input socket to more than one source button but NOT

to map multiple input sockets to one source button. The remote

handset record

and

functions can also be used to

set up input mapping.

To exit from program mode press and hold the

key on the

handset until the record select indicators are restored and the

volume indicator stops flashing.

5.4 Automatic Input Switching

The NAC 552 incorporates an optional automatic input switching

feature which can select the appropriate input as soon as any

handset function for a particular Naim source component is

operated. For example, if the tuner input is selected on the NAC

552 and the CD play key is operated on the handset, the NAC

552 will automatically switch to the CD input. Automatic input

switching can be programmed to operate independently on any

combination of the CD, AV and Tuner input buttons (and sockets

to which they are mapped).

To enable automatic input switching, first switch the NAC 552

into program mode as described in Paragraph 5.2. The front

panel source mono button will illuminate if automatic switching

is already enabled. If it is not enabled it can be switched on by

pressing the

source mono

button twice.

With auto switching enabled,

pressing the

source mono

button

will reveal the inputs selected

for auto switching by their button

indicators illuminating for a short

time. Repeated operation of the

source mono

button will sequentially

select through each possible

combination of CD, Tuner, AV inputs,

and auto switching disabled (CD,

Tuner and AV button indicators off).

When the desired inputs selected for

auto switching are indicated, stop

pressing the

source mono

button.

Preamplifier

5.3 Socket Types and Mapping Defaults

Input Socket Socket Source Button

Number Features Mapping Default

1 DIN input Not Mapped

2 DIN input CD

3 DIN input TUNER

4 DIN input/output, unity gain capable TAPE

5 DIN input/output, unity gain capable AV

6 DIN input/output AUX 1

7 DIN input, power output for Stageline AUX 2

8 RCA Phono pair Not mapped

9 RCA Phono pair Not mapped

NAC 552

The remote handset

(Flash) or

(Narcom 3) key can

also be used to set up automatic source switching. Automatic

input switching only becomes operational on exiting from

program mode by pressing and holding the handset

key.

In a few cases some further equipment configuration may

be required for auto switching to operate correctly on the AV input.

Please contact your retailer or local distributor for advice.

5.5 AV Integration (Unity Gain)

The NAC 552 unity gain function enables an audio-visual

processor to be integrated such that its volume control takes

over command of signals connected to selected NAC 552

inputs. Unity gain can be selected on input sockets 4 and 5

only (the corresponding input buttons will depend on the input

mapping set up).

To select unity gain, first switch the NAC 552 into program mode

as described in Paragraph 5.2. The front panel source mute

button will illuminate if unity gain is selected on any input. If it is

not enabled it can be switched on by pressing the

source mute

button twice.

With unity gain enabled, pressing the

source mute

button

again will reveal the inputs selected by their button indicators

illuminating for a short time. Repeated operation of the

source

button will sequentially select each combination of Input

4, Input 5 and unity gain disabled. When the desired inputs are

indicated, stop pressing the source mute button. The selected

inputs will then be enabled for unity gain. The remote handset

key can also be used to set up unity gain.

Unity gain only becomes operational on exiting from program

mode by pressing and holding the handset

key.

The unity gain feature must be used with care. It effectively

by-passes the NAC 552 volume and balance controls leaving any

signal connected to a unity gain input to be passed to the power

amplifier and speakers at full volume. In order to reduce the

potential for inadvertent mishap, any subsequent modifications

to input mapping will automatically disable previously set up unity

gain inputs. Additionally, if an input is selected which has unity gain

enabled, the NAC 552 volume and balance handset functions will

be disabled and their indicators will turn off. This will be flagged by

the volume or balance indicators flashing if either handset function

is operated.

5.6 Handset Volume and Balance Control

The remote handset

volume

and

keys provide some

alternative control characteristics. A quick press and release of

a key will adjust by a preset “nudge”. A quick press and release

of a key followed by press and hold will cause continual slow

adjustment. Simple press and hold will cause continual fast

adjustment.

5.7 Mute and Mono

Mute and mono functions can be controlled independently for

source and record signals via the front panel buttons to the left

of the two banks of source and record selection buttons. Mute

silences the output signal, while mono sums the left and right

channels.

5.8 Display

The NAC 552 front panel button display can be switched off

by pressing the remote handset (in preamplifier mode)

function. Any subsequent handset or front panel operation will

temporarily restore the display. A second operation of the

function will permanently restore the display.

5.9 Switch-on

After switch-on, via the NAC 552PS front panel

button,

the NAC 552 will remain muted for 30 seconds while control

systems and circuits stabilise. The source side will then un-mute

automatically leaving the record side muted (and its circuits

unpowered).

5.10 Remote Control

The

remote handset supplied with the NAC 552 duplicates

all configuration and control functions. See Section 23 for more

information. The

and

handsets will also control

the NAC 552. See Sections 24 and 25 for more information.

5.11 Defaults

To restore all programmable settings to the factory defaults

press and hold the remote handset

key while the

preamplifier is in program mode. The preamplifier will exit from

program mode following this operation.

6.1 NAC 552 Front

volume

NAC 552

6.2 NAC 552 Rear

Preamplifier

6.3 NAC 552 Connected to NAC 552PS

Interconnect Cables

signal ground

Inputs 1, 2 & 3

Inputs 4, 5 & 6

Input 7

7. NAC 552/NAC 552PS Specification

75mV, 47kΩ

40dB

(all inputs all audio frequencies)

0.775V, <50Ω

Tape Output Level:

75mV, 600Ω

Auxiliary Power Outputs:

For Stageline/Prefix phono stage.

Both 87 x 432 x 314mm

100-120V or 220-240V, 50/60Hz

to stereo power

to mono or dual mono

NAC 252

8.1 Source Inputs and Record Outputs

The input selector buttons arranged along the

bank

select the source signal to be routed to the power amplifier

and the loudspeakers. Below them, in the

bank, are a

corresponding array of buttons which select the signal to be

routed to the preamplifier’s record outputs.

These separate source and record sections enable one source (a

CD player, for example) to be listened to whilst the output from

another (say, the tuner) is simultaneously selected for recording.

It is possible to lock the record controls and prevent

accidental de-selection during recording. Record-lock is switched

on or off by pressing the

source mono

button four times within six

seconds.

8.2 Input Socket Mapping (Program Mode)

The NAC 252 has six DIN input sockets and two alternative pairs

of RCA Phono sockets. The RCA Phono sockets can be mapped

individually to the CD and AUX 2 input buttons in place of the

DIN sockets.

Input mapping setup is accessed through the NAC 252 program

mode. To switch into program mode press and hold the

on the remote handset (in preamplifier mode). Program mode is

indicated by a flashing indicator on the volume control and the

record select indicators extinguishing. If no function is operated

within five minutes of entering program mode the NAC 252 will

return to normal mode automatically.

Once in program mode press and hold the remote handset

key to select or de-select the RCA Phono socket input for CD,

and the remote handset

key to select or de-select the RCA

Phono socket input for AUX 2. The corresponding front panel

input buttons can similarly be used to select or de-select the

RCA Phono socket inputs. The appropriate input button indicator

will flash three times on selection of the RCA Phono option and

once on selection of the DIN option.

To exit from program mode press and hold the

key on the

handset until the record select indicators are restored and the

volume indicator stops flashing.

8.3 Automatic Input Switching

The NAC 252 incorporates an optional automatic input switching

feature which can select the appropriate input as soon as any

handset function for a particular Naim source component is

operated. For example, if the tuner input is selected on the NAC

252 and the CD play key is operated on the handset, the NAC

252 will automatically switch to the CD input. Automatic input

switching can be programmed to operate independently on any

combination of the CD, AV and Tuner input buttons.

To enable automatic input switching, first switch the NAC 252

into program mode as described in Paragraph 8.2. The front

panel source mono button will illuminate if automatic switching

is already enabled. If it is not enabled it can be switched on by

pressing the

source mono

button twice.

With auto switching enabled, pressing the

source mono

button

will reveal the inputs selected for auto switching by their button

indicators illuminating for a short time. Repeated operation

of the

source mono

button will sequentially select each

combination of CD, Tuner, AV inputs, and auto switching disabled

(CD, Tuner and AV button indicators off). When the desired

inputs selected for auto switching are indicated, stop pressing

the source mono button.

The remote handset

(Flash) or

(Narcom) key can

also be used to set up automatic source switching. Automatic

input switching only becomes operational on exiting from

program mode by pressing and holding the handset

key.

In a few cases some further equipment configuration may

be required for auto switching to operate correctly on the AV input.

Please contact your retailer or local distributor for advice.

8.4 AV Integration (Unity Gain)

The NAC 252 unity gain function enables an audio-visual

processor to be integrated such that its volume control takes

over command of signals connected to selected NAC 252

inputs. Unity gain can be selected on the AV input only.

To select unity gain, first switch the NAC 252 into program mode

as described in Paragraph 8.2. The front panel

source mute

button will illuminate if unity gain is selected. If it is not enabled

it can be switched on by pressing the

source mute

button twice.

Deselect unity gain by again pressing the

source mute

button

twice. Unity gain only becomes operational on exiting from

program mode by pressing and holding the handset

key.

The unity gain feature must be used with care. It effectively

by-passes the NAC 252 volume and balance controls leaving any

signal connected to a unity gain input to be passed to the power

amplifier and speakers at full volume. Additionally, if the AV input

is selected while unity gain is enabled the volume and balance

handset functions will be disabled and their indicators will turn off.

This will be flagged by the volume or balance indicators flashing if

either handset function is operated.

8.5 Handset Volume and Balance Control

The remote handset

volume

and

keys provide some

alternative control characteristics. A quick press and release of

a key will adjust by a preset “nudge”. A quick press and release

of a key followed by press and hold will cause continual slow

adjustment. Simple press and hold will cause continual fast

adjustment.

8 Installation and Operation

The NAC 252 preamplifier does not incorporate an internal power supply and can

be used only in conjunction with the Supercap power supply. Diagram 9.3 illustrates

connection of the NAC 252 to the Supercap.

NAC 252

8.6 Mute and Mono

Mute and mono functions can be controlled independently for

source and record signals via the front panel buttons to the left

of the two banks of source and record selection buttons. Mute

silences the output signal, while mono sums the left and right

channels.

8.7 Display

The NAC 252 front panel button display can be switched off

by pressing the remote handset (in preamplifier mode)

function. Any subsequent handset or front panel operation will

temporarily restore the display. A second operation of the

function will permanently restore the display.

8.8 Switch-on

After switch-on, via the Supercap front panel

button,

the NAC 252 will remain muted for 30 seconds while control

systems and circuits stabilise. The source side will then un-mute

automatically leaving the record side muted.

A flashing mute indicator after switch-on indicates that the

preamplfier power supply or link plugs are incorrectly connected.

8.9 Remote Control

The

remote handset supplied with the NAC 252

duplicates all configuration and control functions. See Section

24 for more information. The

and

handset will

also control the NAC 252. See Sections 23 and 25 for more

information.

8.10 Defaults

To restore all programmable settings to the factory defaults

press and hold the remote handset

key while the

preamplifier is in program mode. The preamplifier will exit from

program mode following this operation.

Preamplifier

9.1 NAC 252 Front

volume

NAC 252

9.3 NAC 252 Connected to Supercap

Interconnect Cables

to stereo power

to mono or dual mono

10. NAC 252/Supercap Specification

75mV, 47kΩ

40dB

(all inputs all audio frequencies)

0.775V, <50Ω

Tape Output Level:

75mV, 600Ω

Auxiliary Power Outputs:

For Stageline/Prefix phono stage.

Both 87 x 432 x 314mm

100-120V or 220-240V, 50/60Hz

9.2 NAC 252 Rear

tuner

tape

Inputs 1, 2 & 6

Inputs 3, 4 & 5

Input 6

(alternative)

The NAC 252 AUX 2 input is provided with two sockets. The

lower socket, fitted on delivery with a blanking cover, is intended for

use with a Stageline or Prefix RCA Phono stage and incorporates

an appropriate DC power supply. The two sockets must not be used

simultaneously.

The RS232/comms interface is an optional upgrade. It can

be specified at time of order or fitted retrospectively. Contact your

local representative or Naim Audio directly for further information.

NAC 282

Preamplifier

11.1 Source Inputs and Record Outputs

The input selector buttons arranged along the

bank

select the source signal to be routed to the power amplifier

and the loudspeakers. Below them, in the

bank, are a

corresponding array of buttons which select the signal to be

routed to the preamplifier’s record outputs.

These separate source and record sections enable one source (a

CD player, for example) to be listened to whilst the output from

another (say, the tuner) is simultaneously selected for recording.

It is possible to lock the record controls and prevent

accidental de-selection during recording. Record-lock is switched on

or off by depressing the source

button four times within six

seconds.

11.2 Input Socket Mapping (Program Mode)

The NAC 282 has six DIN input sockets and two alternative pairs

of RCA Phono sockets. The RCA Phono sockets can be mapped

individually to the CD and AUX 2 input buttons in place of the

DIN sockets.

Input mapping setup is accessed through the NAC 282 program

mode. To switch into program mode press and hold the

key

on the remote handset (in preamplifier mode). Program mode is

indicated by a flashing indicator on the volume control and the

record select indicators extinguishing. If no function is operated

within five minutes of entering program mode the NAC 282 will

return to normal mode automatically.

Once in program mode press and hold the remote handset

key to select or de-select the RCA Phono socket input for CD,

and the remote handset

key to select or de-select the RCA

Phono socket input for AUX 2. The corresponding front panel

input buttons can similarly be used to select or de-select the

RCA Phono socket inputs.The appropriate input button indicator

will flash three times on selection of the RCA Phono option and

once on selection of the DIN option.

To exit from program mode press and hold the

key on the

handset until the record select indicators are restored and the

volume indicator stops flashing.

11.3 Automatic Input Switching

The NAC 282 incorporates an optional automatic input switching

feature which can select the appropriate input as soon as any

handset function for a particular Naim source component is

operated. For example, if the tuner input is selected on the NAC

282 and the CD play key is operated on the handset, the NAC

282 will automatically switch to the CD input. Automatic input

switching can be programmed to operate independently on any

combination of the CD, AV and Tuner input buttons.

To enable automatic input switching, first switch the NAC 282

into program mode as described in Paragraph 11.2. The front

panel source mono button will illuminate if automatic switching

is already enabled. If it is not enabled it can be switched on by

pressing the

source mono

button twice.

With auto switching enabled, pressing the

source mono

button

will reveal the inputs selected for auto switching by their button

indicators illuminating for a short time. Repeated operation

of the

source mono

button will sequentially select each

combination of CD, Tuner, AV inputs, and auto switching disabled

(CD, Tuner and AV button indicators off). When the desired

inputs selected for auto switching are indicated, stop pressing

the

source mono

button.

The remote handset

(Flash) or

(Narcom 3) key can

also be used to set up automatic source switching. Automatic

input switching only becomes operational on exiting from

program mode by pressing and holding the handset

key.

In a few cases some further equipment configuration may

be required for auto switching to operate correctly on the AV input.

Please contact your retailer or local distributor for advice.

11.4 AV Integration (Unity Gain)

The NAC 282 unity gain function enables an audio-visual

processor to be integrated such that its volume control takes

over command of signals connected to selected NAC 282

inputs. Unity gain can be selected on the AV input only.

To select unity gain, first switch the NAC 282 into program mode

as described in Paragraph 11.2. The front panel

source mute

button will illuminate if unity gain is selected. If it is not enabled

it can be switched on by pressing the

source mute

button twice.

Deselect unity gain by again pressing the source mute button.

Unity gain options only become operational on exiting from

program mode by pressing and holding the handset

key.

The unity gain feature must be used with care. It effectively

by-passes the NAC 282 volume and balance controls leaving any

signal connected to a unity gain input to be passed to the power

amplifier and speakers at full volume. Additionally, if the AV input

is selected while unity gain is enabled the volume and balance

handset functions will be disabled and their indicators will turn off.

This will be flagged by the volume or balance indicators flashing if

either handset function is operated.

11.5 Handset Volume and Balance Control

The remote handset

volume

and

keys provide some

alternative control characteristics. A quick press and release of

a key will adjust by a preset “nudge”. A quick press and release

of a key followed by press and hold will cause continual slow

adjustment. Simple press and hold will cause continual fast

adjustment.

11 Installation and Operation

The NAC 282 preamplifier does not incorporate an internal power supply but must be

used in conjunction with either a Naim power amplifier incorporating a preamplifier

power output, or with an appropriate Naim power supply. A separate NAPSC supply that

provides power to the display and control circuits is also supplied. Diagrams 12.3 and

12.4 illustrate two NAC 282 power supply options.

NAC 282

11.6 Mute and Mono

Mute and mono functions can be controlled independently for

source and record signals via the buttons to the left of the two

banks of source and record selection buttons. Mute silences the

output signal, while mono sums the left and right channels.

11.7 Display

The NAC 282 front panel button display can be switched off

by pressing the remote handset (in preamplifier mode)

function. Any subsequent handset or front panel operation will

temporarily restore the display. A second operation of the

function will permanently restore the display.

11.8 Switch-on

After switch-on, via the NAPSC and power supply, or power

amplifier,

button, the NAC 282 will remain muted for 30

seconds while control systems and circuits stabilise. The source

side will then un-mute automatically leaving the record side

muted (and its circuits unpowered).

A flashing mute indicator after switch-on indicates that the

preamplfier power supply or link plugs are incorrectly connected.

11.9 Remote Control

The

remote handset supplied with the NAC 282

duplicates all configuration and control functions. See Section

24 for more information. The

and

handset will

also control the NAC 252. See Sections 23 and 25 for more

information.

11.10 Defaults

To restore all programmable settings to the factory defaults press

and hold the remote handset

key while the preamplifier is

in program mode. The preamplifier will exit from program mode

following this operation.

12.1 NAC 282 Front

volume

to power

with internal

12.2 NAC 282 Rear

tuner

tape

Inputs 1, 2 & 6

Inputs 3, 4 & 5

Input 6

(alternative)

The NAC 282 AUX 2 input is provided with two sockets. The lower socket, fitted on delivery with a blanking cover, is intended for use with a Stageline or Prefix RCA Phono stage and incorporates an appropriate DC power supply. The two sockets must not be used simultaneously.

The RS232/comms interface is an optional upgrade. It can be specified at time of order or fitted retrospectively. Contact your local representative or Naim Audio directly for further information.

to NAPSC

with link and blanking plugs fitted

Preamplifier

13. NAC 282 Specification

75mV, 47kΩ

40dB

(all inputs all audio frequencies)

0.775V, <50Ω

Tape Output Level:

75mV, 600Ω

Auxiliary Power Outputs:

For Stageline/Prefix phono stage.

NAC 282 - 87 x 432 x 314mm

12.3 NAC 282 Connected to Supercap and NAPSC

NAC 282

to stereo power

to mono or dual mono

12.4 NAC 282 Connected to Hi-Cap and NAPSC

to stereo power amplifiers

to mono or dual

Interconnect Cables

NAC 202

14.1 Input Socket Mapping (Program Mode)

The input selector buttons select the source input signal to be

routed to the power amplifier and the loudspeakers.

The NAC 202 has six DIN input sockets and two alternative pairs

of RCA Phono sockets. The RCA Phono sockets can be mapped

individually to the CD and AUX 2 input buttons in place of the

DIN sockets.

Input mapping setup is accessed through the NAC 202 program

mode. To switch into program mode press and hold the

key

on the remote handset (in preamplifier mode). Program mode

is indicated by a flashing indicator on the volume control. If no

function is operated within five minutes of entering program

mode the NAC 202 will return to normal mode automatically.

Once in program mode press and hold the remote handset

button to select or de-select the RCA Phono socket input for CD,

and the remote handset

button to select or de-select the RCA

Phono socket input for AUX 2. The corresponding front panel

input buttons can similarly be used to select or de-select the

RCA Phono socket inputs. The appropriate input button indicator

will flash three times on selection of the RCA Phono option and

once on selection of the DIN option.

To exit from program mode press and hold the

key on the

remote until the volume indicator stops flashing.

14.2 Automatic Input Switching

The NAC 202 incorporates an optional automatic input switching

feature which can select the appropriate input as soon as any

handset function for a particular Naim source component is

operated. For example, if the tuner input is selected on the NAC

202 and the CD play key is operated on the handset, the NAC

202 will automatically switch to the CD input. Automatic input

switching can be programmed to operate independently on any

combination of the CD, AV and Tuner input buttons.

To enable automatic input switching, first switch the NAC 202

into program mode as described in Paragraph 14.1. The front

panel

button will illuminate if automatic switching is already

enabled. If it is not enabled it can be switched on by pressing

the front panel

button twice.

With auto switching enabled, pressing the front panel

button will reveal the inputs selected for auto switching by

their button indicators illuminating for a short time. Repeated

operation of the

button will sequentially select each

combination of CD, Tuner, AV inputs, and auto switching disabled

(CD, Tuner and AV button indicators off). When the desired

inputs selected for auto switching are indicated, stop pressing

the

button.

The remote handset

key can also be used to set up

automatic source switching. Automatic input switching only

becomes operational on exiting from program mode by pressing

and holding the handset prog key.

In a few cases some further equipment configuration may

be required for auto switching to operate correctly on the AV input.

Please contact your retailer or local distributor for advice.

14.3 AV Integration (Unity Gain)

The NAC 202 unity gain function enables an audio-visual

processor to be integrated such that its volume control takes

over command of signals connected to selected NAC 202

inputs. Unity gain can be selected on the AV input only.

To select unity gain, first switch the NAC 202 into program mode

as described in Paragraph 14.1. The front panel

button will

illuminate if unity gain is selected. If it is not enabled it can be

switched on by pressing the

button twice. Deselect unity

gain by again pressing the

button.

Unity gain only become operational on exiting from program

mode by pressing and holding the handset

key.

The unity gain feature must be used with care. It effectively

by-passes the NAC 202 volume and balance controls leaving any

signal connected to a unity gain input to be passed to the power

amplifier and speakers at full volume. Additionally, if the AV input

is selected while unity gain is enabled the volume and balance

handset functions will be disabled and their indicators will turn off.

This will be flagged by the volume or balance indicators flashing if

either handset function is operated.

14.4 Handset Volume Control

The remote handset

volume

key provides some alternative

control characteristics. A quick press and release of a key

will adjust by a preset “nudge”. A quick press and release of

a key followed by press and hold will cause continual slow

adjustment. Simple press and hold will cause continual fast

adjustment.

14.5 Channel Balance

Channel balance adjustment is operated electronically within

the preamplifier and is controlled by the remote handset

keys only. Balance will automatically centre as it reaches the

mid point. Centring is indicated by a flashing volume control

indicator. To resume adjustment once the balance has centred,

a handset

key must be released and re-pressed.

The handset

keys provides some alternative control

characteristics. A quick press and release of a key will adjust by

a preset “nudge”. A quick press and release of a key followed

by press and hold will cause continual slow adjustment. Simple

press and hold will cause continual fast adjustment.

14 Installation and Operation

The NAC 202 preamplifier does not incorporate an internal power supply but must be

used in conjunction with either a Naim power amplifier incorporating a preamplifier

power output, or with an appropriate Naim power supply. An optional separate NAPSC

supply to provide power to the display and control circuits is also available. Diagram

15.3 illustrates the NAC 202 connected to a Hi-Cap power supply.

NAC 202

Preamplifier

14.6 Mute

The

button silences and restores the output signal.

14.7 Record Monitor

The

button operates the record monitor circuit enabling the

recorded output of a suitably equipped recording device to be

heard.

14.8 Record Mute

In order to minimise power consumption and improve sound

quality the NAC 202 record output circuits may be switched off.

To engage or disengage the record mute first operate the

record monitor function (mon) as described in Paragraph 14.7

above then press the front panel

button. The mute button

indicator will be illuminated when record mute is engaged and

extinguished when record mute is disengaged.

Record mute can be engaged and disengaged from the remote

handset by operating the record monitor function followed by the

mute function.

14.9 Display

The NAC 202 front panel button display can be switched off

by pressing the remote handset (in preamplifier mode)

function. Any subsequent handset or front panel operation will

temporarily restore the display. A second operation of the

function will permanently restore the display.

14.10 Switch-on

After switch-on, via the power supply or power amplifier power

button, the NAC 202 will remain muted for 30 seconds while

control systems and circuits stabilise.

A flashing mute indicator after switch-on indicates that the

preamplfier power supply or link plugs are incorrectly connected.

14.11 Remote control

The NARCOM 3 remote handset supplied with the NAC 202

duplicates all configuration options. See Section 24 for more

information. The

and

handsets will also control the

NAC 202. See Sections 23 and 25 for more information.

14.12 Defaults

To restore all programmable settings to the factory defaults

press and hold the remote handset

key while the

preamplifier is in program mode. The preamplifier will exit from

program mode following this operation.

15.1 NAC 202 Front

volume

NAC 202

to power

with internal

15.2 NAC 202 Rear

tuner

tape

Inputs 1, 2 & 6

Inputs 3, 4 & 5

Input 6

(alternative)

The NAC 202 AUX 2 input is provided with two sockets. The

upper socket, fitted on delivery with a blanking cover, is intended

for use with a Stageline or Prefix RCA Phono stage and incorporates

an appropriate DC power supply. The two sockets must not be used

simultaneously.

The RS232/comms interface is an optional upgrade. It can

be specified at time of order or fitted retrospectively. Contact your

local representative or Naim Audio directly for further information.

to NAPSC

with link and blanking plugs fitted

16. NAC 202 Specification

75mV, 47kΩ

40dB

(all inputs all audio frequencies)

0.775V, <50Ω

Tape Output Level:

75mV, 600Ω

Auxiliary Power Outputs:

For Stageline/Prefix phono stage.

NAC 282 - 87 x 432 x 314mm

15.3 NAC 202 Connected to Hi-Cap and NAPSC

to stereo power amplifiers

to mono or dual

Interconnect Cables

NAC 112x

17.1 Input Socket Mapping (Program Mode)

The input selector buttons select the source input signal to be

routed to the power amplifier and the loudspeakers.

The NAC 112x has six DIN input sockets and two alternative

pairs of RCA Phono sockets. The RCA Phono sockets can be

mapped individually to the CD and AUX 2 input buttons in place

of the DIN sockets.

Input mapping setup is accessed through the NAC 112x program

mode. To switch into program mode press and hold the

key

on the remote handset (in preamplifier mode). Program mode

is indicated by a flashing indicator on the volume control. If no

function is operated within five minutes of entering program

mode the NAC 112x will return to normal mode automatically.

Once in program mode press and hold the remote handset

button to select or de-select the RCA Phono socket input for CD,

and the remote handset

button to select or de-select the RCA

Phono socket input for AUX 2. The corresponding front panel

input buttons can similarly be used to select or de-select the

RCA Phono socket inputs. The appropriate input button indicator

will flash three times on selection of the RCA Phono option and

once on selection of the DIN option.

To exit from program mode press and hold the

key on the

remote until the volume indicator stops flashing.

17.2 Automatic Input Switching

The NAC 112x incorporates an optional automatic input

switching feature which can select the appropriate input when

any handset function for a particular Naim source component is

operated. For example, if the tuner input is selected on the NAC

112x and the cd play key is operated on the handset, the NAC

112x will automatically switch to the cd input. Automatic input

switching can operate on any combination of the cd, tuner and

av inputs.

To enable automatic input switching, first switch the NAC 112x

into program mode as described in Paragraph 17.1. Program

mode is indicated by a flashing indicator on the volume control.

The front panel mon button will illuminate if automatic input

switching is already enabled. If it is not enabled it can be

activated by pressing the handset

key or front panel

button twice.

With automatic input switching enabled, pressing the

key

or the

button will reveal the inputs selected for automatic

input switching by their button indicators illuminating for a short

time. Repeated operation of the

key or

button will

sequentially select through each possible combination of cd,

tuner, and av inputs, and automatic input switching disabled (cd,

tuner and av indicators off). When the desired inputs selected

for automatic input switching are indicated, stop pressing the

key or button.

To disable automatic input switching, press the

key or

button repeatedly until no input buttons are illuminated.

Automatic input switching only becomes operational or is

cancelled on exiting from program mode by pressing and holding

the handset

key.

17.3 Input Volume Compensation

The NAC 112x incorporates an input volume compensation

system that enables different source component output levels to

be matched.

To program the volume compensation for each input first set the

volume control to a comfortable listening level with the loudest

source (probably CD). Switch the NAC 112x into program mode

as described in Paragraph 17.1. Now select an input to be

adjusted in comparison to the previously selected source and

use the handset

vol up

and

vol down

keys to set an appropriate

volume level. The preamplifier volume control will not rotate

during this operation. Select a further input to adjust if required.

The front panel volume control cannot be used to adjust

input volume compensation. The handset volume keys only must

be used.

To exit program mode press and hold the handset

key until

the volume control indicator stops flashing.

Input Volume Compensation can be reset by restoring the

factory defaults. See Section 17.11

17.4 AV Integration (Unity Gain)

The unity gain function enables an audio-visual processor to be

integrated such that its volume control takes over command of

signals connected to selected NAC 112x inputs. Unity gain can

be selected on the AV input only.

To select unity gain, first switch the NAC 112x into program

mode as described in Paragraph 17.1. The front panel

button will illuminate if unity gain is selected. If it is not enabled

it can be switched on by pressing the remote handset

button. Deselect unity gain by again pressing the handset

button.

The unity gain feature must be used with care. It effectively

by-passes the NAC 112x volume and balance controls leaving any

signal connected to a unity gain input to be passed to the power

amplifier and speakers at full volume. Additionally, if the handset

preamplifier volume or balance functions are operated while the

unity gain AV input is selected, subsequently selected inputs will be

modified by the new volume or balance settings.

17.5 Handset Volume

The remote handset

vol

keys provides some alternative control

characteristics. A quick press and release of a key will adjust

the volume by a small amount while a press and hold will cause

first slow and then faster adjustment.

17 Installation and Operation

The NAC 112x preamplifier does not incorporate an internal power supply but must be

used in conjunction with either a Naim power amplifier incorporating a preamplifier

power output, or with an appropriate Naim power supply. Diagram 18.3 illustrates the

NAC 112x connected to a Flatcap 2 power supply.

Preamplifier

NAC 112x

17.6 Channel Balance

Channel balance adjustment is operated electronically within the

preamplifier and is controlled by the remote handset

keys

only. Balance will automatically centre as it reaches the mid

point. Centring is indicated by a flashing volume control indicator.

To resume adjustment once the balance has centred, a handset

key must be released and re-pressed.

17.7 Mute

The

button silences and restores the output signal.

17.8 Record Monitor

The

button operates the record monitor circuit enabling the

recorded output of a suitably equipped recording device to be

heard.

17.9 Record Mute

In order to minimise power consumption and improve sound

quality the NAC 112x record output circuits may be switched off.

To engage or disengage the record mute first operate the

record monitor function (mon) as described in Paragraph 17.8

above then press the front panel

button. The mute button

indicator will be illuminated when record mute is engaged and

extinguished when record mute is disengaged.

Record mute can be engaged and disengaged from the remote

handset by operating the record monitor function followed by the

mute function.

17.10 Display

The NAC 112x front panel button display can be switched off

by pressing the remote handset (in preamplifier mode)

function. Any subsequent handset or front panel operation will

temporarily restore the display. A second operation of the

function will permanently restore the display.

17.11 Switch-on

After switch-on, via the power supply or power amplifier power

button, the NAC 112x will remain muted for 15 seconds while

control systems and circuits stabilise.

17.12 Remote control

The

remote handset supplied with the NAC 112x

duplicates all configuration options. See Section 24 for more

information. The

and

handsets will also control the

NAC 112x. See Sections 23 and 25 for more information.

17.13 Defaults

To restore all programmable settings to the factory defaults press

and hold the remote handset

key while the preamplifier is

in program mode. The preamplifier will exit from program mode

following this operation.

18.1 NAC 112x Front

volume

Preamplifier

NAC 112x

19. NAC 112x Specification

75mV, 47kΩ

35dB

(all inputs all audio frequencies)

0.775V, <50Ω

Tape Output Level:

75mV, 600Ω

Auxiliary Power Outputs:

For Stageline/Prefix phono stage.

70 x 432 x 301mm

Interconnect Cables

to stereo power

to mono

for CD5x , Headline or

to power amplifier with internal power supply

18.2 NAC 112x Rear

tuner

tape

Inputs 1, 2 & 6

Inputs 3, 4 & 5

Input 6

(alternative)

The NAC 112x AUX 2 input is provided with two sockets. The

left hand socket, fitted on delivery with a blanking cover, is intended

for use with a Stageline or Prefix RCA Phono stage and incorporates

an appropriate DC power supply. The two sockets must not be used

simultaneously.

The NAC 112x features various technologies to reduce

microphonic effects. Some movement of the board and sockets

when connecting and disconnecting cables is normal.

The RS232/comms interface is an optional upgrade. It can

be specified at time of order or fitted retrospectively. Contact your

local representative or Naim Audio directly for further information.

NAIT 5i

20 Installation and Operation

The NAIT 5i Integrated Amplifier should be installed on a dedicated equipment stand

intended for the purpose. Care should be taken to ensure that it is level. The NAIT

5i can be operated from its internal power supply only. No power supply upgrade is

possible.

20.1 Inputs

The front panel input selector buttons select the source input

signal to be routed to the power amplifier and the loudspeakers.

The four buttons are labelled cd, tuner, tape and av. Each input

button corresponds to a pair of rear panel RCA Phono input

sockets. The cd and tuner inputs are additionally provided with

alternative DIN sockets. These should be used in preference to

the RCA Phono sockets if practical. Do not connect both the DIN

and RCA Phono sockets of one input simultaneously.

20.2 Automatic Input Switching (Program Mode)

The NAIT 5i incorporates an optional automatic input switching

feature which can select the appropriate input as soon as any

handset function for a particular Naim source component is

operated. For example, if the tuner input is selected on the

NAIT 5i and the cdplay key is operated on the handset, the NAIT

5i will automatically switch to the cd input. Automatic input

switching can be set up to operate on any combination of the

cd, tuner and av inputs.

To enable automatic input switching, first switch the NAIT 5i into

program mode by pressing and holding either the

key on

the remote handset (handset in preamplifier mode) or the

button on the amplifier front panel. Program Mode is indicated

by a flashing indicator on the front panel volume control. If no

function is operated within five minutes of entering program

mode the NAIT 5i will return to normal mode automatically.

The front panel tape button will illuminate if automatic input

switching is already enabled. If it is not enabled it can be

activated by pressing the handset

key or front panel

tape

button twice.

With automatic input switching enabled, pressing the

key or

the

tape

button will reveal the inputs selected for automatic

input switching by their button indicators illuminating for a

short time. Repeated operation of the 3 key or

tape

button will

sequentially select through each possible combination of cd,

tuner, and av inputs, and automatic input switching disabled (cd,

tuner and av indicators off). When the desired inputs selected

for automatic input switching are indicated, stop pressing the

key or button.

To disable automatic input switching, press the

key or

tape

button repeatedly until no other buttons are illuminated.

Automatic input switching only becomes operational or is

cancelled on exiting from program mode by pressing and holding

the handset

key or front panel

button.

20.3 AV Integration (Unity Gain)

The Unity Gain function enables an audio-visual processor to be

integrated with the NAIT 5i such that its volume control takes

over command of signals connected the amplifier’s AV input.

To select unity gain, first switch the NAIT 5i into program

mode as described in Paragraph 20.2. The AV input button will

illuminate if unity gain is already enabled. If it is not enabled

it can be activated by pressing the handset

key or the front

panel

button. Deselect unity gain by again pressing the

key or the

button. Unity gain only becomes operational or is

cancelled on exiting from program mode by pressing and holding

the handset

key or front panel

button.

The unity gain feature must be used with care. It effectively

by-passes the NAIT 5i volume control leaving any signal connected

to the unity gain input to be passed to the power amplifier and

speakers at full volume. Additionally, if an input is selected which

has unity gain enabled, the volume handset functions will be

disabled and their indicators will turn off. This will be flagged by the

volume indicator flashing if its handset keys are used.

20.4 Restoring Defaults

The programmable functions can be restored to their default,

(inactive) states by pressing and holding the front panel

tuner

button or the handset

key (handset in preamplifier

mode) while the NAIT 5i is in program mode.

20.5 Outputs

A stereo set of speaker connection sockets are provided on the

rear panel. The sockets can accept standard 4mm plugs, but to

comply with European legislation the Naim connectors supplied

should be used. Naim Audio speaker cable will provide the best

results, however, a wide range of speaker cable types can be

used without risk of damage to the amplifier.

Ensure when connecting speakers that they are “in-phase”. That

is, the positive and negative connection orientation at both the

speaker and amplifier ends of the cable is the same for both

speakers.

The tape output always carries the selected input signal. No

“record monitor” function is available.

20.6 Volume and Mute Control

The remote handset

vol

keys provides some alternative control

characteristics. A quick key press and release will adjust the

volume incrementally. A quick key press and release followed by

press and hold will provide continual slow adjustment. Simple

press and hold will provide continual fast adjustment.

Mute control is available from the remote handset only. Mute is

indicated by the amplifier volume control indicator flashing.

The NAIT 5i does not incorporate any facility for channel

balance adjustment.

Integrated Amplifier

NAIT 5i

20.7 Display

The NAIT 5i front panel button display can be switched off

by pressing the remote handset (in preamplifier mode)

function. Any subsequent handset or front panel operation will

temporarily restore the display. A second operation of the

function will permanently restore the display.

20.8 Remote Handset

The

remote handset supplied with the NAIT 5i provides

remote access to the front panel input selection and volume

control functions of the amplifier as well as providing a mute

facility and enabling access to the program mode required

for setting up the Automatic Input Switching and Unity Gain

functions. See Section 25 for more information. The

and

handsets will also control the NAIT 5i. See Sections

23 and 24 for more information.

20.9 Connections Notes

The negative input and output connections for each channel are

common. The mains earth (ground) should always be connected

regardless of what other equipment is used in conjunction with

the amplifier. This only grounds the case and the electrostatic

screen within the transformer, and is not connected to the signal

negative. In order to avoid hum loops, the signal negative of the

whole system should be connected to the mains earth (ground)

in one place. This should be the primary signal source.

21.2 NAIT 5i Rear

tuner input (DIN)

tuner input (RCA Phono)

tape in

tape out

21.1 NAIT 5i Front

volume

22. NAIT 5i Specification

225mV, 20kΩ

Tape Output:

225mV, 100Ω

Continuous 8Ω, 50W/channel

Transient 300W

10VA

70 x 432 x 301mm

100-120V or 220-240V, 50/60Hz

DIN Inputs

The NAIT 5i features various technologies to reduce

microphonic effects. Some movement of the board and sockets

when connecting and disconnecting cables is normal.

Flash Handset

23.1 Introduction

Flash is factory pre-programmed to operate any Naim

preamplifier or cd player, the NAT 05 tuner and AV2

audio-visual processor. Additional Naim sources may be

catered for in the future. Contact your dealer or local

representative for information.

Flash is supplied without batteries fitted. To fit the batteries,

remove the battery cover with the supplied hexagon driver and

slide the batteries into the handset body taking care with their

orientation. Replace the battery cover. Do not over-tighten the

fixing screw. With batteries fitted the handset is ready for use.

Flash is designed to switch off if unused after 10 seconds. It

switches on immediately if it is moved or a key is pressed.

23.2 Using Flash

Flash can be set to control each

equipment type through the

four

keys beneath the

display. The selected equipment

mode is indicated in the display

above each

key. When

key is pressed the

display and the eight

keys and the

keys will

re-configure appropriately. The

display for each equipment type

shows a representation of the

eight

keys and their

functions.

The

AV preset

key will also

wake an av processor from

standby. Press and hold the

AV preset

key to return the

processor to standby mode.

The

volume up

and

keys are always available

to control the appropriate

(audio-visual or preamplifier)

volume and mute functions

regardless of the selected

source equipment mode.

The

and AV

equipment modes have multiple display “pages” (only one page

is necessary for Tuners). The first display page of each provides

control of the most commonly used functions, with subsequent

pages generally providing access to those less often used.

Selection of second and third pages within each mode is made

by pressing the appropriate

key. The currently selected

page is shown in the top right corner of the display. Details of

the

key functions within each page is described in the

following paragraphs:

PRE (preamplifier mode)

Page 1 of 2

source +

Selects the next input source.

source -

Selects the previous input source.

Adjusts balance to the left.

Adjusts balance to the right.

Enters programming mode on preamplifiers.

Selects display options on appropriately

equipped preamplifiers.

Sums the left and right channels.

Note: On Naim preamplifiers with no mono

facility, operates the record monitor function.

Accesses a Flash setup page where source

labels can be chosen, and display preferences

can be set. Also provides access to RC5 setup.

Directly selects preamplifier input channels.

Page 2 of 2

The

key functions on

are duplicates of

However, selection of Page Two provides control of

the record functions on appropriately equipped preamplifiers.

CD (cd mode)

Page 1 of 2

Begins cd play

stop

Stops cd play

Selects the previous track or index point

Selects the next track or index point

Pauses cd play

Cycles the cd player display through track,

time and off options.

Fast reverses cd

fwd

Fast forwards cd

Directly select CD tracks.

Page 2 of 2

The master key functions

and

fwd

are duplicates of

However, selection of

provides programming and repeat functions.

Enters CD track programming mode.

Repeats the CD or programmed tracks.

Selects CD tracks or index points for

programming.

TUN (tuner mode)

Page 1 of 1

Depending on the operational mode selected,

adjusts the tuning frequency upwards

, searches for stations up

the FM band

or selects the next

station preset

Operates in the same manner as the

key.

Selects preset program mode that enables

FM stations to be assigned to preset memory.

Switches the tuner display on or off.

Combines the left and right channels

and may improve reception on weak signals.

Selects frequency, scan and preset modes.

Directly select station presets.

Volume and mute keys

Flash and NARCOM 3

AV (av processor mode)

Page 1 of 3

Selects the next input.

Selects the previous input.

Selects the previous decode mode.

Selects the next decode mode.

Selects On Screen Display operational mode

and shows current system status.

Switches the processor display on and off.

Selects midnight operational mode.

Used in setup mode.

Directly selects processor inputs.

Page 2 of 3

The master key functions on

AV Page Two

are duplicates of

However, selection of

switches the function

of the numeric keys to selection of processor decode modes.

Page 3 of 3

Selects the previous AV setup parameter or

moves the OSD cursor upwards.

Selects the next AV setup parameter or moves

the OSD cursor downwards.

Selects the previous AV parameter value or

moves the OSD cursor to the left.

Selects the next AV parameter value or moves

the OSD cursor to the right.

Selects into input setup mode.

spkr

Selects speaker setup mode.

Confirms option selection during OSD control.

Clears option selection during OSD control.

No function.

23.3 CD Track Programming

mode the

key (display Page Two) enables specific CD

tracks and their play order to be programmed.

To program a play order select a track number from the

keypad followed by the

key until the desired selection is

complete. During selection, the track number indicated in the

display will be followed by either

or . indicates that the

track is selected,

indicates that the track can be selected.

The

key can also be used to delete tracks from a play

order. To delete a track, press and hold the

key until the

prog indicator in the CD display illuminates then delete the

track or tracks using the

keypad followed each time

by a further operation of the

key. During deletion the track

number indicated in the display will be followed by either

or no display.

indicates that the track is deleted,

indicates

that the track can be deleted while no display indicates that this

is the only track remaining and therefore cannot be deleted.

A random play order can be programmed (from stop with no play

order already in place) by pressing

followed by

. Similarly,

to program a reverse play order, press

followed by

Play orders can be reviewed by pressing

while the player

is either stopped or playing. The player display will then scroll

through the selected tracks. The prog indicator on the player

display will illuminate when a play order has been programmed.

To clear the program memory press and hold the

stop

key.

24.1 Introduction

NARCOM 3 is a multi-functional remote control handset

designed to be used with Naim Audio CD players,

integrated amplifiers, preamplifiers and preset tuners.

The handset control configuration is based around three

types of keys: System Component Keys, Global Keys and

Soft Keys.

24.2 System component keys

These keys switch

the operation of the

into modes

appropriate to each

system component

(CD, tuner, preamp,

record).

Switches the

action of the Soft Keys

to that appropriate for

a CD player.

tuner:

Switches the

action of the Soft Keys

to that appropriate for

a preset tuner.

Switches the

action of the Soft Keys

to that appropriate

for an integrated or

preamplifier.

Switches

the action of the

Soft Keys to select

record inputs on

appropriately equipped

preamplifiers.

24.3 Global Keys

These keys operate specific component functions regardless of

the System Component Key setting.

Preamplifier

vol (5 & 6)

Adjusts the preamplifier volume and the volume

control position.

Reduces the preamplifier volume to zero. A second

press restores the volume.

Adjusts the channel balance. Some Naim

amplifiers have control of channel balance

available only from the remote handset. On these

products the balance will automatically centre

as it reaches the mid point. Centring is indicated

by a flashing volume control indicator. To resume

adjustment once the balance has centred, the

key must be released and re-pressed.

Remote Handset

NARCOM 3

Enables the output of appropriately equipped tape

machines to be heard while recording. The source

to be recorded is chosen by the input selection

buttons in the normal way. A second operation of

the mon key restores normal operation.

Alternatively operates the mono function on

appropriately equipped preamplifiers.

Compact Disc

Selects the previous track or index point.

Selects the next track or index point.

stop

Stops cd play.

Begins cd play.

Fast reverses and fast forwards the cd.

repeats the cd or programmed tracks.

Pauses the cd.

Tuner

Switches the tuner sequentially through

modes. Modes are

indicated by the scan and preset indicators on

the tuner display.

These keys both have three possible functions

depending upon the selection of the mode key.

mode the up and down keys adjust

the tuning frequency in 0.1MHz steps. In

scan

mode the up and down keys will make the

tuner search for stations. In

mode the

up and down keys will tune to the next

numbered preset.

Toggles between mono and stereo operation.

The tuner display will indicate stereo when

both stereo operation is selected and a stereo

signal is received. The mono button on the

tuner will illuminate when mono is selected.

24.4 Soft Keys

These keys operate functions depending on the System

Component Key setting.

In preamp mode the

will switch

between the preamplifier inputs. In cd mode the

will select tracks. In tuner mode

the

will select tuner presets or

tuner frequency. In record mode the

will switch between record inputs on

appropriately equipped preamplifiers.

24.5 CD Track Programming

In CD mode the prog key enables specific tracks and their play

order to be programmed.

To program a play order select a track number from the

followed by the

key until the desired selection is

complete. During selection, the track number indicated in the

player display will be followed by either

or no display.

indicates that the track is already selected,

indicates that the

track can be selected.

The

key can also be used to delete tracks from a play

order. To delete a track, press and hold the

key until the

prog indicator in the CD display illuminates then delete the track

or tracks using the

followed each time by a further

operation of the

key. During deletion the track number

indicated in the player display will be followed by either

or no display.

indicates that the track is already deleted,

indicates that the track can be deleted while no display indicates

that this is the only track remaining and therefore cannot be

deleted.

The CD player can be programmed with a random play order

(from stop with no play order already in place) by pressing

followed by

Similarly, to program a reverse play order, press

followed by

Play orders can be reviewed by pressing

while the player

is either stopped or playing. The player display will then scroll

through the selected tracks. The prog indicator on the player

display will illuminate when a play order has been programmed.

To clear the program memory press and hold the

stop

key.

25.1 Introduction

iCom is a simple remote control handset designed to be

used with Naim Audio CD players, integrated and pre-

amplifiers. The handset control configuration is based

around three types of keys: System Component Keys,

Global Keys and Soft Keys.

25.2 System component keys

These keys switch

the operation of

the

into

modes appropriate

to each system

component.

Switches

the action of the

Soft Keys to that

appropriate for a CD

player.

Switches

the action of the

Soft Keys to that

appropriate for

an integrated or

preamplifier.

25.3 Global Keys

These keys operate

specific component

functions regardless

of the System

Component Key

setting.

Preamplifier

vol

Adjusts the preamplifier volume and the volume

control position.

Reduces the preamplifier volume to zero. A second

press restores the volume.

Adjusts the channel balance. Some Naim amplifiers

have control of balance available only from the

remote handset. On these products the balance will

automatically centre as it reaches the mid point.

Balance centring is indicated by a flashing volume

control indicator. To resume adjustment once the

balance has centred, bal key must be released and

re-pressed.

iCom

Compact Disc

Pauses the cd.

Stops cd play.

Starts cd play.

Selects the previous track or index point.

Selects the next track or index point.

Fast forwards the cd.

Fast reverses the cd.

Repeats the cd or programmed tracks.

25.4 Soft Keys

These keys operate functions depending on the System

Component Key setting.

mode the

will switch

between the preamplifier inputs. In

mode the

will select tracks.

Selects the component front panel display

mode.

Provides access to component programming

functions.

25.5 CD Track Programming

To program a play order select a track number from the

followed by the

key until the desired selection is

complete. During selection, the track number indicated in the

player display will be followed by either

or no display.

indicates that the track is already selected,

indicates that the

track can be selected.

The

key can also be used to delete tracks from a play

order. To delete a track, press and hold the

key until the

prog indicator in the CD display illuminates then delete the track

or tracks using the

followed each time by a further

operation of the

key. During deletion the track number

indicated in the player display will be followed by either

or no display.

indicates that the track is already deleted,

indicates that the track can be deleted while no display indicates

that this is the only track remaining and therefore cannot be

deleted.

The CD player can be programmed with a random play order

(from stop with no play order already in place) by pressing

followed by

Similarly, to program a reverse play order, press

followed by

Play orders can be reviewed by pressing

while the player

is either stopped or playing. The player display will then scroll

through the selected tracks. The prog indicator on the player

display will illuminate when a play order has been programmed.

To clear the program memory press and hold the

stop

key.

The

key will scroll through these options: tracks (“time”

indicator off), time (“time” indicator on) and display off.

Remote Handset

NAP 500

26.1 Connections Notes

The negative input and output connections for each channel are

common. The mains earth (ground) should always be connected

regardless of what other equipment is used in conjunction with

Naim power amplifiers. This only grounds the case and the

electrostatic screen within the transformer, and is not connected

to the signal negative. In order to avoid hum loops, the signal

negative of the whole system should be connected to the mains

earth (ground) in one place. This should be the primary signal

source.

Each channel of the NAP 500 is a “bridged” amplifier, so

none of the speaker outlet sockets (+ or -) is at earth potential.

Avoid connecting mains powered equipment such as electrostatic

speakers, sub-woofers and headphone energisers that do not have

a floating earth. No plug which is connected directly or indirectly to

earth potential should be attached to any speaker outlet (+ or -).

26.2 Protection Notes

In the NAP 500 the fan speed is increased in response to

an increase in amplifier dissipation. If the amplifier reaches

70°C due to prolonged running at high level or to airflow being

blocked, the output will be interrupted and the fan will run at full

speed until it has cooled down. This may take a few minutes.

It is not necessary to switch the amplifier off, but it may be

advisable to mute the preamplifier or turn the volume down to

avoid surprises when it comes back on.

YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE.

THE VOLUME SHOULD BE REDUCED.

26.3 Loudspeaker Cable and Connectors

Only Naim Audio speaker cable should be used to connect a

loudspeaker to the output of the NAP 500. Custom Naim Audio

loudspeaker connectors are supplied to make the connection.

TO CONNECT THE LOUDSPEAKERS.

26 Installation and Operation

The NAP 500 and NAP 500PS should be installed in their final operating locations before

connecting cables or switching on. Switch on the source and preamplifier components,

with the volume turned down, before switching on the NAP 500. The NAP 500 power

button is located on the front panel of the NAP 500PS Power Supply.

Care should be taken when siting the NAP 500 to ensure that the top and bottom

ventilation grids are not blocked e.g. by carpet if the unit is to be placed on the floor.

The NAP 500 is very heavy and care should be taken when lifting or moving it. Make

sure that the surface it is to be placed on can support the full weight.

Power Amplifier

NAP 500

27.1 NAP 500 Connected to NAP 500PS

Interconnect Cables

28 NAP 500/NAP 500PS Specification

140 Watts per channel, 8Ω

700 VA Transient

60VA

Voltage Gain:

+29dB

18kΩ

-3dB @ 1.5Hz and 100kHz

NAP 500 - 160 x 432 x 375mm

NAP 500PS - 87 x 432 x 314mm

Weight

NAP 500 - 25kg

NAP 500PS - 15.4kg

100-120V or 220-240V, 50/60Hz

Input Ch1

Input Ch2

NAP 300

29.1 Connections Notes

The negative input and output connections for each channel are

common. The mains earth (ground) should always be connected

regardless of what other equipment is used in conjunction with

Naim power amplifiers. This only grounds the case and the

electrostatic screen within the transformer, and is not connected

to the signal negative. In order to avoid hum loops, the signal

negative of the whole system should be connected to the mains

earth (ground) in one place. This should be the primary signal

source.

29.2 Protection Notes

In the NAP 300 the fan speed is increased in response to

an increase in amplifier dissipation. If the amplifier reaches

70°C due to prolonged running at high level or to airflow being

blocked, the output will be interrupted and the fan will run at full

speed until it has cooled down. This may take a few minutes.

It is not necessary to switch the amplifier off, but it may be

advisable to mute the preamplifier or turn the volume down to

avoid surprises when it comes back on.

YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE.

THE VOLUME SHOULD BE REDUCED.

29.3 Loudspeaker Cable and Connectors

Only Naim Audio speaker cable should be used to connect a

loudspeaker to the output of the NAP 300. Custom Naim Audio

loudspeaker connectors are supplied to make the connection.

TO CONNECT THE LOUDSPEAKERS.

29 Installation and Operation

The NAP 300 and NAP 300PS should be installed in their final operating locations before

connecting cables or switching on. Switch on the source and preamplifier components,

with the volume turned down, before switching on the NAP 300. The NAP 300 power

button is located on the front panel on the NAP 300PS Power Supply.

Care should be taken when siting the NAP 300 to ensure that the underside fan inlet

and rear outlet are not obstructed e.g by carpet in the case of the inlet.

The NAP 300 is very heavy and care should be taken when lifting or moving it. Make

sure that the surface it is to be placed on can support the full weight.

Power Amplifier

NAP 300

30 NAP 300 Connected to NAP 300PS

Interconnect Cables

31 NAP 300/NAP 300PS Specification

90 Watts per channel, 8Ω

500 VA Transient

27VA

Voltage Gain:

+29dB

18kΩ

-3dB @ 2Hz and 70kHz

Both - 87 x 432 x 314mm

Weight

NAP 300 - 10.7kg

NAP 300PS - 14.1kg

100-120V or 220-240V, 50/60Hz

Input Ch1

Input Ch2

32.1 connection notes

The negative input and output connections are all common. The

mains earth should always be connected regardless of what

other equipment is used. This only grounds the case and the

electrostatic screen within the transformer, and is not connected

to the signal negative. In order to avoid hum loops, the signal

negative of the whole system should be connected to the mains

earth (ground) in one place. This should be the primary signal

source.

32.2 protection notes

If the amplifier’s external case reaches 70°C due to prolonged

running at high power, the mains supply will be interrupted and

the illuminated logo will switch off until the amplifier has cooled

down. This may take up to thirty minutes.

32 Installation and Operation

The NAP 250 should be installed in its final operating location before connecting cables

or switching on. Switch on the source and preamplifier components, with the volume

turned down, before switching on the NAP 250. The NAP 250 power button is located on

the front panel.

The NAP 250 is very heavy and care should be taken when lifting or moving it. Make

sure that the surface it is to be placed on can support the full weight.

YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE.

THE VOLUME SHOULD BE REDUCED.

32.3 loudspeaker cable and connectors

Only Naim Audio speaker cable should be used to connect a

loudspeaker to the output of the NAP 250. Custom Naim Audio

loudspeaker connectors are supplied to make the connection.

TO CONNECT THE LOUDSPEAKERS.

33 NAP 250 Rear

34 NAP 250 Specification

80 Watts per channel, 8Ω

400 VA Transient

25VA

Voltage Gain:

+29dB

18kΩ

-3dB @ 2Hz and 65kHz

87 x 432 x 314mm

Weight

15.8kg

100-120V or 220-240V, 50/60Hz

Input

signal input

35.1 connection notes

The negative input and output connections are all common. The

mains earth should always be connected regardless of what

other equipment is used. This only grounds the case and the

electrostatic screen within the transformer, and is not connected

to the signal negative. In order to avoid hum loops, the signal

negative of the whole system should be connected to the mains

earth (ground) in one place. This should be the primary signal

source.

35.2 protection notes

If the amplifier’s external case reaches 70°C due to prolonged

running at high power, the mains supply will be interrupted and

the illuminated logo will switch off until the amplifier has cooled

down. This may take up to thirty minutes.

35 Installation and Operation

The NAPV 145 is a mono power amplifier intended for use in audio-visual home-theatre

systems. The NAPV 145 should be installed in its final operating location before

connecting cables or switching on. Switch on the source and preamplifier components,

with the volume turned down, before switching on the NAPV 145. The NAPV 145 power

button is located on the front panel.

The NAPV 145 is very heavy and care should be taken when lifting or moving it. Make

sure that the surface it is to be placed on can support the full weight.

YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE.

THE VOLUME SHOULD BE REDUCED.

35.3 loudspeaker cable and connectors

Only Naim Audio speaker cable should be used to connect a

loudspeaker to the output of the NAPV 145. Custom Naim Audio

loudspeaker connectors are supplied to make the connection.

TO CONNECT THE LOUDSPEAKERS.

36 NAPV 145 Rear

37 NAPV 145 Specification

80 Watts, 8Ω

400 VA Transient

15VA

Voltage Gain:

+29dB

18kΩ

-3dB @ 2Hz and 65kHz

87 x 432 x 314mm

Weight

15.8kg

100-120V or 220-240V, 50/60Hz

signal

Input

Power Amplifier

38.1 Connection Notes

The negative input and output connections are all common. The

mains earth should always be connected regardless of what

other equipment is used. This only grounds the case and the

electrostatic screen within the transformer, and is not connected

to the signal negative. In order to avoid hum loops, the signal

negative of the whole system should be connected to the mains

earth (ground) in one place. This should be the primary signal

source.

38.2 Protection Notes

If the amplifier’s external case reaches 70°C due to prolonged

running at high power, the mains supply will be interrupted and

the illuminated logo will switch off until the amplifier has cooled

down. This may take up to thirty minutes.

38 Installation and Operation

The NAP 200 should be installed in its final operating location before connecting cables

or switching on. Switch on the source and preamplifier components, with the volume

turned down, before switching on the power amplifier. The power button is located on

the front panel.

The NAP 200 can provide power for an appropriate Naim Audio preamplifier. The power

supply output is carried on the DIN input socket.

The NAP 200 is heavy and care should be taken when lifting or moving it. Make sure that

the surface it is to be placed on can support its full weight.

YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE.

THE VOLUME SHOULD BE REDUCED.

38.3 Loudspeaker Cable and Connectors

Only Naim Audio speaker cable should be used to connect a

loudspeaker to the output of the amplifier. Custom Naim Audio

loudspeaker connectors are supplied to make the connection.

TO CONNECT THE LOUDSPEAKERS.

39 NAP 200 Rear

40 NAP 200 Specification

70 Watts per channel, 8Ω

300 VA Transient

11VA

Voltage Gain:

+29dB

18kΩ

-3dB @ 2Hz and 65kHz

24V, 0.3A

87 x 432 x 314mm

Weight

11.6kg

100-120V or 220-240V, 50/60Hz

signal input

Input/Preamp

Power Socket

41.1 Connection Notes

The negative input and output connections are all common. The

mains earth should always be connected regardless of what

other equipment is used. This only grounds the case and the

electrostatic screen within the transformer, and is not connected

to the signal negative. In order to avoid hum loops, the signal

negative of the whole system should be connected to the mains

earth (ground) in one place. This should be the primary signal

source.

41.2 Protection Notes

If the amplifier’s external case reaches 70°C due to prolonged

running at high power, the mains supply will be interrupted and

the illuminated logo will switch off until the amplifier has cooled

down. This may take up to thirty minutes.

41 Installation and Operation

The NAP 150x should be installed in its final operating location before connecting

cables or switching on. Switch on the source and preamplifier components, with the

volume turned down, before switching on the power amplifier. The power button is

located on the rear panel.

The NAP 150x can provide power for an appropriate Naim Audio preamplifier. The power

supply output is carried on the DIN input socket.

The NAP 150x is heavy and care should be taken when lifting or moving it. Make sure

that the surface it is to be placed on can support its full weight.

YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE.

THE VOLUME SHOULD BE REDUCED.

41.3 Loudspeaker Cable and Connectors

Only Naim Audio speaker cable should be used to connect a

loudspeaker to the output of the amplifier. Custom Naim Audio

loudspeaker connectors are supplied to make the connection.

TO CONNECT THE LOUDSPEAKERS.

42 NAP 150x Rear

43 NAP 150x Specification

50 Watts per channel, 8Ω

250 VA Transient

10VA

Voltage Gain:

+29dB

18kΩ

-3dB @ 3Hz and 50kHz

24V, 0.25A

70 x 432 x 301mm

Weight

7.5kg

100-120V or 220-240V, 50/60Hz

signal input

Input/Preamp

Power Socket

Power Amplifier

44.1 Connection Notes

The mains earth grounds only the case and the electrostatic

screen within the transformer and is not connected to the

signal negative. The mains earth must always be connected to

“ground” regardless of any other equipment used. In order to

avoid hum-loops the signal negative of the whole system should

be connected to the mains earth in one place. This should be

the primary signal source.

44.2 Protection Notes

Once installed the NAP V175 is intended to remain permanently

powered up via its rear panel switch. If the internal heatsink

reaches 70°C due to prolonged running at very high dissipation

the mains supply will be interrupted and the indicator light will

go off until the amplifier has cooled down. This may take up to

thirty minutes.

44 Installation and Operation

The NAPV 175 is a three channel power amplifier intended for use in home-theatre

systems. The three channels provide power to drive a centre channel speaker and a pair

of either main front or surround channel speakers. Audio line level input is via two 4-pin

DIN sockets - one for the centre channel and one for the main or surround pair.

The NAPV 175 should be installed in its final location before connecting cables or

switching on. Switch on the source and preamplifier components, with the volume turned

down, before switching on the NAPV 175. The power button is located on the rear panel.

The NAPV 175 is heavy and care should be taken when lifting or moving it. Make sure

that the surface it is to be placed on can support the full weight.

YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE.

THE VOLUME SHOULD BE REDUCED.

44.3 Loudspeaker Cable and Connectors

Only Naim Audio speaker cable should be used to connect a

loudspeaker to the output of the NAP V175. Custom Naim Audio

loudspeaker connectors are supplied to make the connection.

TO CONNECT THE LOUDSPEAKERS.

45 NAPV 175 Rear

46 NAPV 175 Specification

50 Watts per channel, 8Ω

Three

10VA

Voltage Gain:

+29dB

18kΩ

-3dB @ 3Hz and 50kHz

70 x 432 x 301mm

Weight

7.9kg

100-120V or 220-240V, 50/60Hz

fuse

signal

Input - Centre

Input - Ch1 & Ch2

ground

Signal Inputs

Unused zone input sockets should be fitted with the supplied

yellow shorting plugs. Failure to use the shorting plugs may

reduce the reliability with which the NAP 6-50 drops into standby

mode. Serious damage is likely to occur if yellow shorting plugs

are used on Naim equipment other than the nap 6-50.

The negative input and output connections within each zone

are common but there is no signal negative connection

between them. The mains earth grounds only the case and the

electrostatic screen within the transformer and is not connected

to the signal negative. The mains earth must always be

connected to “ground” regardless of any other equipment used.

In order to avoid hum-loops the signal negative of the whole

system should be connected to the mains earth in one place.

This should be the primary signal source.

47.1 Operation

Once installed the NAP 6-50 is intended to remain permanently

powered-up via its front panel switch. When not in use the

amplifier will drop into “standby” mode during which less than 1

Watt is dissipated. Standby mode is indicated by the front panel

logo illuminating red. Switch from standby to operational mode

47 Installation and Connection

The NAP 6-50 is a six channel power amplifier intended for use in multi-room audio

systems. The six channels are configured as three sets of two (left and right). The three

sets are intended to provide audio power to drive one pair of loudspeakers in three

multi-room “zones”. Audio line level input for each zone is via 4-pin DIN sockets.

The NAPV 175 is heavy and care should be taken when lifting or moving it. Make sure

that the surface it is to be placed on can support the full weight.

takes place automatically when a programme signal is detected

at any input or, alternatively, can be controlled via the 3.5mm

“jack” trigger input socket on the rear panel.

47.2 Protection

The NAP 6-50 uses a fan to assist heat dissipation. Fan speed

is increased automatically in response to an increase in heat

dissipation. If the internal heatsink reaches 70°C due to

prolonged running at very high dissipation, blocked airflow, or

fan failure, the mains supply will be interrupted and the indicator

light will go off until the amplifier has cooled down. This may take

up to thirty minutes.

47.3 Siting

Care should be taken when siting the NAP 6-50 to ensure that

the ventilation and fan apertures are not obstructed.

47.4 Loudspeaker connectors

Special Naim Audio loudspeaker connectors are supplied to

make the connection to the power amplifier(s).

49 NAP 6-50 Specification

30 Watts per channel, 8Ω

Six (in three zone pairs)

Voltage Gain:

+29dB

18kΩ

-3dB @ 3Hz and 50kHz

<1W

Trigger Input Voltage:

4.5V to 12V (plug tip +’ve)

87 x 432 x 314mm

100-120V or 220-240V, 50/60Hz

48 NAP 6-50 Rear

zone 1

input

zone 3

zone 2

zone 3

input

zone 2

input

zone 1

zone 3

trigger

zone 2

zone

Power Amplifier

50 Installation

Power supplies should be installed 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.

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 full weight.

50.1 Supercap Rear

Socket 1

Socket 2

Socket 3, 4 & 5

50.2 XPS Rear

50.3 Hi-Cap Rear

Socket 1, 2 & 3

Socket 4

Power Supply

51 Installation

Power supplies should be installed 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 Flatcap 2 and NAPSA 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 full

weight.

51.1 Flatcap 2 Rear

Inputs 2, 3, 4 & 6

Sockets 1 & 5

51.2 NAPSA (Armageddon) Rear

turntable power

51.3 NAPSC Rear

53 Declaration of conformity to appropriate standards

Manufacturer Naim Audio Limited, Southampton Road, Salisbury, England, SP1 2LN Products Preamplifiers - NAC 552, NAC 252, NAC 282, NAC 202, NAC 112x

Integrated Amplifier - NAIT 5i

Power Amplifiers - NAP 500/NAP 500PS, NAP 300/NAP 300PS, NAP 250, NAPV 145, NAP 200, NAP 150x, NAPV 175, NAP 6-50

Power Supplies - Supercap, XPS, Hi-Cap, Flatcap 2, NAPSA, NAPSC

Safety EN 60065

EMC

Emissions Tested to: EN 55013 - Sound and television broadcast receivers and associated equipment

BS EN 61000-3-2: 2002 - Limits for harmonic current emissions (equipment input currents up to and including 16 A per phase)

Immunity Tested to: EN55020 - Electromagnetic immunity of broadcast receivers and associated equipment

In accordance with: CISPR 16-1 - Radio disturbance and immunity measuring apparatus

CISPR 16-2 Methods of measurement of disturbances and immunity

IEC 801-2 8kV (air gap) 4kV (contact) (performance criterion B)

IEC 801-3 3V/m 20dB (performance criterion A)

IEC 801-4 1kV (AC lines) 0.5kV (signal lines) (performance criterion B)

52 Power Supply Specifications

XPS

13 x 24V ±22V 2 x 24V 2 x 22V 116Vac 18.5V

2 x 12V ±10V 2 x 24V

2 x 15V

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

Weight:

11.6kg 12.4kg 7.35kg 5.4kg 6.75kg 2.1kg

100-120V or 220-240V, 50/60Hz

Telephone: +44 (0) 1722 332266 Fax: +44 (0) 1722 412034 www.naim-audio.com

Naim Audio Limited, Southampton Road, Salisbury, England SP1 2LN

Telephone: +44 (0) 1722 332266 Fax: +44 (0) 1722 412034 www.naim-audio.com

Part No. 0WMAM 12-001-0041

Drawing No. NA906001-400/1

Naim Audio Hi-CAP Owners manual

Specifications and Main Features

Frequently Asked Questions

User Manual