Page 1
Reference Manual – English
NAC-N 272
NAC-N 172 XS
Page 2
Contents
Section Page Section Page
Introduction 1
1. NAC-N preamplier Components and Audio Sources 1
1.1 Preamplier 1
1.2 Multi-mode Radio 1
1.3 USB Audio Interface 1
1.4 UPnP™ Audio Interface 1
1.5 Spotify® Connect 2
1.6 TIDAL 2
1.7 Multiroom Streaming 2
1.8 Bluetooth® Streaming 2
2. Installing and Connecting 3
2.1 Mains Power Connection 3
2.2 Audio Signal Connections 4
2.3 Headphone Output 5
2.4 DAB/FM Aerial Connection 5
2.5 Signal Ground Switch 5
2.6 USB Interface 5
2.7 Network Connections 5
2.8 Bluetooth 6
2.9 System Automation 6
2.10 Control and Update Sockets 6
2.11 Connections 7
2.12 Diagram Icons 8
5. Preamplier 21
5.1 Selecting Inputs 21
5.2 Volume Control 21
5.3 Preamplier Display 21
5.4 Signal Outputs 21
6. Multi-format Tuner 22
6.1 FM Tuner – Seeking Stations 22
6.2 DAB Tuner – Seeking Stations 22
6.3 iRadio Tuner – Seeking Stations 22
6.4 Adding iRadio Stations 23
6.5 Storing Radio Presets 23
6.6 Selecting Radio Presets 23
7. USB Audio 24
7.1 USB Media and File Compatibility 24
7.2 Browsing and Playing USB Files 24
8. Network Audio Streaming 25
8.1 UPnP™ Streaming 25
8.2 Spotify® Connect Streaming 26
8.3 TIDAL Streaming 26
8.4 Multiroom Streaming 27
3. Operation and Control 9
3.1 Front Panel Buttons 9
3.2 Front Panel Display 9
3.3 Remote Control Handset 11
3.4 The Naim App 12
4. Set Up 14
4.1 The Setup Home Menu 14
4.2 The Language Menu 14
4.3 The Inputs Menu 14
4.4 The Rooms Menu 16
4.5 The Analogue Outputs Menu 16
4.6 The Headphones Menu 16
4.7 The Network Settings Menu 16
4.8 The Front Display Menu 18
4.9 The Digital Output Menu 18
4.10 The Clock and Alarm Menu 18
4.11 The Handset Keys Menu 19
4.12 The System Automation Menu 20
4.13 The Factory Settings Menu 20
9. Bluetooth Streaming 28
10. Specications 29
11. Acknowledgements and Declarations 30
Page 3
Introduction
Welcome to Naim and congratulations on your purchase. This manual covers the NAC-N preampliers: NAC-N 172 XS and
NAC-N 272. The NAC-N preampliers are highly capable products that will repay time and eort spent on installation and
conguration. We strongly recommend that you read this manual in full. The manual provides comprehensive information
on all NAC-N features and facilities and will enable you to set up your product either to integrate with your existing music
systems and media, or to form the heart of a new system.
NAC-N preampliers can play audio from a variety of components and sources. Each of the components and sources is
introduced in the following Section 1 paragraphs and subsequently described in full detail in Sections 5 to 9. Sections 2 to 4
cover installation and set up.
NAC-N preampliers can be controlled from their front panels, the supplied remote control handset, and from the Naim App
freely available from the Apple iTunes App Store and the Google Play Store.
1. NAC-N preamplifier Components and Audio Sources
1.1 Preamplifier
1.1.1 Inputs
NAC-N preampliers provide external analogue and digital
audio inputs. The number of external inputs provided varies
with each product.
In addition to the conventional analogue and digital inputs,
NAC-N preampliers can also play audio from the the
following external sources:
• Internet radio via a wired network socket or wireless
network connection.
• DAB and FM radio via an external aerial.
• UMS (Universal Mass Storage) USB memory devices via
a USB interface.
• Universal plug and play (UPnP™) servers holding audio
les via a wired or wireless network connection.
• Spotify® audio streams via a wired or wireless network
connection from the Spotify® Connect feature
incorporated in Spotify® player apps.
1.1.2 Signal Outputs
NAC-N preampliers provide a variety of signal outputs.
The number and type of signal outputs varies with each
product. They are tabulated in Section 2.2.1.
1.2 Multi-mode Radio
The NAC-N preamplier multi-mode radio combines an
internet radio (iRadio) player and optional DAB/FM tuner.
A total of 40 radio stations across all three modes can be
stored as presets. In DAB and FM mode, stations are tuned
by scanning the respective transmission bands. In iRadio
mode, a list of available radio stations is automatically
downloaded from a dedicated internet server. iRadio
requires broadband internet access via a wired or wireless
network connection. See Section 6 for more information.
The DAB tuner incorporates full broadcast and station
display capabilities. The FM tuner is fully RDS (Radio Data
System) capable.
Note: DAB and RDS broadcasts are not available in all
countries.
• TIDAL audio streams via a wired or wireless network
connection from the TIDAL functions built into the
Naim App.
• Bluetooth® audio streams from Bluetooth equipped
hardware such as iOS, Android and Windows Phone
mobile devices running a suitable music player app.
• Music streams from other Naim streamer products
connected to the same wired or wireless network.
1.3 USB Audio Interface
NAC-N preampliers can play audio les stored on USB
memory sticks. See Section 7 for more information.
Note: Compatible audio le formats are listed in Section
7.1 .
1.4 UPnP™ Audio Interface
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1. NAC-N preamplifier Components and Audio Sources
NAC-N preampliers can connect to a home network and
play audio les stored on appropriately congured UPnP™
servers. See Section 8.1 for more information.
Note: Compatible audio le formats are listed in Section
8.1.1.
1.5 Spotify® Connect
NAC-N preampliers can connect to a home network
and play Spotify® Connect audio streams from devices
running an appropriate Spotify® app. A Spotify® Premium
subscription is required. See Section 8.2 for more
information.
Note: Spotify® Connect is not available in all countries.
For a list of availability by country visit the support pages
at www.spotify.com/connect.
1.6 TIDAL
NAC-N preampliers can connect to a home network
and play TIDAL audio streams via iOS or Android devices
running versions 4.6 (iOS) or 1.6 (Android) or later of the
Naim App. A TIDAL subscription is required. See Section 8.3
for more information.
Note: TIDAL is not available in all countries. For a list of
availability by country visit the support pages at:
https://support.tidal.com
1.7 Multiroom Streaming
NAC-N preampliers can play audio streams from other
Naim streamer products connected to the same home
network. Similarly, NAC-N preampliers can simultaneously
broadcast audio playing from their Spotify®, TIDAL, UPnP™,
iRadio, or USB inputs to a maximum of four other Naim
streamer products connected to the same network. See
Section 8.4 for more information.
1.8 Bluetooth® Streaming
NAC-N preampliers can play Bluetooth audio streams from
Bluetooth devices running an appropriate audio playback
app. See Section 9 for more information.
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2. Installing and Connecting
Your NAC-N preamplier should be installed on an equipment stand intended for the purpose. Do not stand it directly on top
of another item of equipment. Ensure it is well ventilated. Care should be taken to ensure that it is level. It should be installed
in its nal location before connecting cables or switching on. NAC-N preampliers have no standby mode and are intended
to be left switched on.
Connecting your NAC-N preamplier to mains power and to a variety of audio peripherals and sources is described in the
following paragraphs. Diagram 2.11 illustrates connection sockets and control features.
2.1 Mains Power Connection
NAC-N 172 XS
Connect your NAC-N 172 XS to a mains power supply using
either the mains cable supplied or a Naim Power-Line.
NAC-N 272
The NAC-N 272 can either be connected directly to a mains
power supply or, for improved performance, powered by an
external XP5 XS, XPS or 555PS power supply.
If your NAC-N 272 is to be connected directly to a mains
power supply, insert the supplied power supply upgrade
link plug in the rear panel Burndy socket and connect the
NAC-N 272 to the mains supply using either the mains cable
supplied or a Naim Power-Line. Do not switch on the
NAC-N 272 until all its other connections are made.
If your NAC-N 272 is to be powered by an external power
supply, the power supply upgrade link plug is not required.
Instead, connect the external power supply to the
NAC-N 272 power supply upgrade socket using a Naim
SXPS Burndy power supply cable. The NAC-N 272 should
not be connected directly to mains power when an external
power supply is used.
Note: Your local local Naim retailer or distributor will be
able to supply an SXPS Burndy cable if required.
The power supply should be switched o while connection
is made and remain switched o until all other NAC-N 272
connections are made.
Important: XPS power supplies with serial numbers below
188015 are not compatible with the NAC-N 272 and
should not be used. Contact your local Naim retailer or
distributor for more information.
The NAC-N 272 rear panel mains switch has no function
when an external power supply is connected.
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2. Installing and Connecting
2.2 Audio Signal Connections
Table 2.2.1 lists the audio inputs and outputs provided
on each NAC-N preamplier. Always use high quality
interconnect cables to connect inputs and outputs.
Note: Post volume control output signals are aected
by volume and balance adjustments. Pre volume control
output signals are unaected by volume and balance
adjustments and must be routed via a volume control
before reaching a power amplier.
2.2.1 Audio Signal Inputs and Outputs
NAC-N 172 XS
Type Name Format Notes
Input an. 1 Analogue 5-pin DIN Fixed volume capable
Input an. 2 Analogue RCA phonos Fixed volume capable
Input Front Analogue 3.5mm jack Combined auto-switching analogue/digital socket
Digital 3.5mm miniTosLink S/PDIF (to 96kHz/24bit) format
Input dig. 1 Digital coaxial (RCA phono) S/PDIF (to 192kHz/24bit) format
Input dig. 2 Digital optical (TosLink) S/PDIF (to 96kHz/24bit) format
Input dig. 3 Digital coaxial (RCA phono) S/PDIF (to 192kHz/24bit) format
Input dig. 4 Digital optical (TosLink) S/PDIF (to 96kHz/24bit) format
Output Preamp Analogue 4-pin DIN Post volume control
Output Preamp Analogue RCA phonos Post volume control
Output Line Analogue RCA phonos Pre volume control
Note: The NAC-N 172 XS Series front analogue/digital jack input socket can accommodate both conventional analogue
3.5mm plugs and miniTosLink optical digital plugs. It will automatically identify the type of plug inserted and handle the
signal appropriately. See Section 4.3.10.
NAC-N 272
Type Name Format Notes
Input an. 1 Analogue 5-pin DIN Fixed volume capable
Input an. 2 Analogue RCA phonos Fixed volume capable
Input an. 3 Analogue RCA phonos Fixed volume capable
Input dig. 1 Digital coaxial (BNC) S/PDIF (to 192kHz/24bit) or DSD64 formats
Input dig. 2 Digital coaxial (RCA phono) S/PDIF (to 192kHz/24bit) or DSD64 formats
Input dig. 3 Digital coaxial (RCA phono) S/PDIF (to 192kHz/24bit) or DSD64 formats
Input dig. 4 Digital optical (TosLink) S/PDIF (to 96kHz/24bit) format
Input dig. 5 Digital optical (TosLink) S/PDIF (to 96kHz/24bit) format
Input dig. 6 Digital optical (TosLink) S/PDIF (to 96kHz/24bit) format
Output Preamp Analogue 4-pin DIN x 2 Post volume control
Output Preamp Analogue RCA phonos Post volume control
Output Line Analogue RCA phonos Pre volume control
Output Line Digital coaxial (BNC) Pre volume control. S/PDIF (to 192kHz/24bit) format
Note: NAC-N preamplier outputs are intended for connection to a power amplier or a subwoofer. Preamplier outputs
always reect the selected input. Your local Naim retailer will be able to supply appropriate cables for power amplier or
subwoofer connection if necessary.
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2. Installing and Connecting
2.3 Headphone Output
The NAC-N 172 XS and NAC-N 272 are equipped on their
front panels with 3.5mm and 6.3mm stereo headphone
sockets respectively. Insertion of a headphone plug will
mute the preamplier outputs. Removal of the plug will
restore the outputs.
Note: NAC-N preampliers control and store volume
settings separately for headphones and speakers.
2.4 DAB/FM Aerial Connection
The NAC-N preamplier DAB/FM tuner module requires a
strong, interference-free signal to enable high quality DAB
and FM reproduction. The rear panel DAB/FM Aerial socket
should be connected, via 75 ohm low-loss coaxial cable, to a
suitable aerial. The aerial should be mounted clear of large
obstructions and as high as possible; ideally on a roof.
Note: Your local Naim retailer should be able to oer
advice on a suitable aerial and aerial installer.
2.5 Signal Ground Switch
Your NAC-N preamplier is tted on its rear panel with a
Signal Ground switch oering two positions: Chassis and
Floating. Select the Chassis position unless the NAC-N
preamplier is connected in a hi- system incorporating
another earthed source component, or mains “hum” is
audible through the loudspeakers. Contact your retailer,
distributor or Naim for advice if necessary.
Note: “Connected” in the context above means an
analogue audio signal cable that includes an earth
connection. The digital inputs are isolated from the mains
earth regardless of the Signal Ground switch.
Note: All Naim CD players are earthed so the Signal
Ground switch should be set to oating if one is
connected in the system.
No damage will be done if the wrong Signal Ground position
is chosen, however the system sound quality may be
compromised.
Note: NAC-N preamplier analogue input and output
negative connections for each channel are common.
The mains earth (ground) should always be connected
regardless of what other equipment is used. The mains
earth primarily grounds the case and the electrostatic
screen within the transformer, and is only connected to
the signal negative if the Signal Ground switch is set to
Chassis. In order to avoid hum loops, the signal negative
of the whole system should be connected to the mains
earth in one place only.
2.6 USB Interface
NAC-N preampliers are tted with a front panel USB
interface intended for the connection of USB memory sticks
carrying audio les. The USB interface should not be used
for any other purpose.
Note: Most UMS (Universal Mass Storage) USB memory
sticks are compatible with the NAC-N preamplier USB
audio interfaces. Other UMS devices might include
portable digital music players, smart-phones, tablet
computers and memory card readers. Non-UMS USB
devices, such as older MP3 players, may be connected
to a NAC-N preamplier analogue audio input from their
headphone sockets. See Section 7 for more information.
2.7 Network Connections
2.7.1 Wired Network Connection
NAC-N preampliers are tted on their rear panels with a
standard RJ45 Ethernet socket. This socket enables them to
join home networks via a network router to access internet
radio streams, to play audio les stored on UPnP™ servers,
to play Spotify® Connect and TIDAL streams, and to play
from or broadcast to other Naim streamers on the same
network.
Note: Ethernet-over-mains hardware may be used and
provides a simple and convenient method of wired home
network connection. However, depending on mains wiring
factors specic to each home environment, the presence
of network data on the mains supply may compromise
overall system sound quality. If any sound quality
compromise is found to be unacceptable, dedicated
network cabling should be installed as the preferred
option, or alternatively wireless networking can be
employed.
2.7.2 Wireless Network Connection
If your NAC-N preamplier is to connect wirelessly to the
home network, the supplied Wi-Fi aerial must be tted to
the rear panel Wi-Fi aerial socket. Wireless conguration
will also be necessary before network connection can be
made. See Section 4.7.1.
Note: The Wi-Fi aerial is the longer one.
Note: An optional high-gain Wi-Fi antenna, the WA5,
is available. The WA5 may improve Wi-Fi connection
reliability in some installations. Contact your Naim retailer
for more information.
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2. Installing and Connecting
2.7.3 Network Settings
NAC-N preampliers are set up when originally shipped
not to require any network conguration but to connect to
networks automatically (DHCP is used by default). However,
if your NAC-N preamplier has been previously used, its
network conguration may have been altered leaving it
unable to connect automatically. If this appears to be the
case ensure that DHCP is selected in the Network Settings
menu and re-start the unit. If the problem still persists
carry out a Factory Reset operation (by selecting Reset All
Settings from the Factory Settings setup menu) and try
again.
Note: Wireless conguration data and user radio presets
will be deleted during the Factory Reset operation.
2.8 Bluetooth
NAC-N preampliers are able to play Bluetooth audio
streams from Bluetooth capable devices incorporating
an appropriate audio playback app. The Bluetooth aerial
supplied must be tted to the rear panel Bluetooth aerial
socket.
2.10 Control and Update Sockets
NAC-N preampliers are tted on their rear panels with
remote control and update interface sockets.
• In addition to System Automation (see Section 2.9) the
Remote In and Out sockets can be used for RC5 remote
control via a wired connection or a remote IR repeater.
• The Mini-USB socket enable rmware upgrades and
diagnostic tests to be carried out. Contact your Naim
retailer for more information if required.
Note: The mini-USB interface is not intended for the
connection of USB memory devices.
Note: The Bluetooth aerial is the shorter of the two
supplied.
2.9 System Automation
NAC-N preampliers can be linked using System
Automation to control some Naim CD players. This enables
a Naim CD player to be controlled from the Naim iOS and
Android app.
To take advantage of System Automation, connect the
NAC-N preamplier rear panel Remote Out socket to the
CD player Remote In socket. Use a cable terminated with a
3.5mm jack plug at one end and a 3.5mm jack or phono plug
as necessary at the other end.
Note: Stereo and mono 3.5mm jack to 3.5mm jack can be
used for System Automation. If a stereo 3.5mm jack to
phono plug cable is used, connect the left channel phono
plug.
Note: System Automation is switched o by default. A full
description of its conguration and use can be found in
Section 4.12.
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2.11 Connections
NAC-N 172 XS
2. Installing and Connecting
OFF
ON
ON
AC ONLY
FREQUENCY: 50/60Hz
INPUT POWER: 35VA MAX
NAC-N 272
FUSE RATING: ANTISURGE
100-120 V: T4AL.
220-240 V: T2AL/250V.
input
Power
Wi-Fi
Control
update
2.0
1.0
USB
Contains Transmitter Modules
Contains Transmitter
FCC ID: ZUCSEDMP3
Module FCC IDSEDMP3
FCC ID: 2ACURBLU
IC: 12217A-BLUE
Network
remote
in
remote
out
NAC-N 172 XS
DESIGNED AND MADE IN ENGLAND BY NAIM AUDIO LTD.
SOUTHAMPTON ROAD, SALISBURY
WARNING:
DISCONNECT SUPPLY CORD
BEFORE OPENING
ATTENTION:
Signal Ground
DEBRANCHER AVANT
D’OUVRIR
Floating
WARNING:
THIS APPARATUS MUST
BE EARTHED
Chassis
PLEASE READ THE MANUAL BEFORE USE
Aerial
S/No.
Bluetooth
DAB/FM
Analogue InputsDigital Inputs
ch.1
dig. 3dig. 1
dig. 3dig. 1
ch.2
-ve
an. 1
dig. 4
dig. 4dig. 2
Analogue Outputs
an. 2
line out
preamp out
preamp out
L
R
L
R
play
stop
ch.1
ch.2
-ve
input
ok
list
exit
Contains
Transmitter
Modules FCC ID:
ZUCSEDMP3
2ACURBLUE
IC:12217A-BLUE
dig. 3
dig. 2
dig.1
dig. 4
dig. 5 dig. 6
Bluetooth
2.0
1.0
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2.12 Diagram Icons
Analogue signal
S/PDIF digital audio signal
USB audio data
Optional FM radio
Optional DAB radio
Headphones
IEC mains supply
Signal Ground Switch
2. Installing and Connecting
W-Fi aerial
Bluetooth aerial
Wired network
RC5 remote control signal
2.0
Firmware upgrade socket
1.0
Optional 555PS power supply
Optional XPS power supply
Optional XP5 XS power supply
Volume control
Logo touch mute and un-mute
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3. Operation and Control
NAC-N preampliers can be operated using either the supplied remote control handset, their front panel buttons or via the
Naim iOS and Android app. Setting up and operating NAC-N preampliers using the remote handset or front panel controls
involves navigation through a menu-based user interface. The general principles of the interface are the same for all NAC-N
preamplier components and this section of the manual begins by illustrating those general principles using front panel
controls.
Note: NAC-N preamplier front panel logos are touch sensitive and provide mute functions.
3.1 Front Panel Buttons
play
stop
The front panel buttons function as described below:
play Play a selected track or radio station.
^ Navigate up a menu or list.
input Sequentially select inputs.
< Return to the previous display menu.
ok/list Conrm menu item selection.
Enter list mode.
> Advance to the next menu.
stop Stop playing a track, radio station or
streaming input.
v Navigate down a menu or list.
exit Exits list mode.
input
ok
list
exit
3.2 Front Panel Display
Front panel display behaviour is common to all NAC-N
preampliers.
3.2.1 Normal Play Mode
42
The Galleons
Cloud Physics
Sing Loud
Time: 0:22
USB
play
stop
In normal play mode the display provides information on the
current setup, the input selected, and the material playing.
A typical normal play mode screen is illustrated above
showing an audio le playing via the USB input.
At the top left of the display the volume level is shown along
with a “speaker” icon that indicates mute is not engaged.
The speaker icon ashes when mute is engaged.
At the top of the display the “play” icon is shown to indicate
that playback is underway and the “shue” icon is displayed
to denote random play has been selected. “USB” denotes
that the USB input is selected.
input
ok
list
exit
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3. Operation and Control
3.2.2 Front Panel Display (List Mode)
Internet Radio 3/8
Added Stations
Naim’s Choice
4Location
Genre
play
stop
input
ok
list
exit
List mode is selected by pressing the front panel list button
or handset ok/list key. List mode is used where sources
provide data that can be browsed: a list of radio stations or
tracks for example.
Lists displayed will depend on the source selected and
data available. A typical list mode screen, illustrated above,
shows the initial internet radio display menu. At the top
right of the screen, “3/8” denotes that the selected item is
number three of eight.
To navigate around lists and select items use the front panel
or handset up (5), down (6), left (3) and ok/list buttons or
keys. To return to normal display press the handset exit key
or front panel exit button.
Note: The right (4) key duplicates the ok/list key when
navigating list mode menus.
In long item lists the handset numeric/text keys can be used
to jump through the list alphabetically.
3.2.3 Setup Mode
Setup 1/11
4Language
Inputs
Rooms
Analogue Outputs
play
stop
input
ok
list
exit
Setup mode is selected by pressing the handset setup
( ) key, pressing and holding the front panel list button, or
selecting the Naim App settings menu. Setup mode provides
access to all user-congurable parameters.
The illustration above shows the setup home menu
displayed when setup mode is initially selected. The “1/11” at
the top right denotes that the selected menu item is number
one of eleven.
Note: Not all NAC-N preampliers have the same number
of setup menu items.
To navigate around the setup menus and make selections
use the front panel or handset up (5), down (6) and left
(3) arrow keys to navigate around menus and the ok/list
button or key to conrm a selection.
Note: The right (4) key duplicates the ok/list key when
navigating setup mode menus.
To leave setup mode press the handset setup ( ) or exit
key or the front panel list or exit button.
Note: If playback is underway when setup mode is
selected it will continue. The volume, mute and transport
(play, pause, stop, etc.) keys on the handset will remain
operational.
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3. Operation and Control
preset store
mute
exit
cd
radio
pc iPod
tv av
hdd aux
vol +
vol -
ok
list
@# abc def
ghi jkl mno
pqrs
del
input +
input -
tuv
wxyz
disp
3.3 Remote Control Handset
The remote control handset is a multifunctional device
designed specically for NAC-N preampliers and Naim
streaming products.
To t batteries, remove the battery cover and insert the
batteries into the body taking care with their orientation.
Replace the battery cover.
3.3.1 Normal and
List/Setup Mode Keys
Key Normal List/Setup
Mode Modes
numeric Enter digits Enter characters in
text 1 to 9 text
0 Enter 0 (zero) Enter spaces in
text
preset Display the radio Delete last
del preset list character in text
store Display the radio Switch text case
£ preset menu
input + Select next input Menu up
5 navigation
input – Select previous Menu down
6 input navigation
3 Input Previous menu
dependent or back one
(see note) character in text
4 Input Next menu
dependent or forward one
(see note) character in text
exit No function Exit current menu
without saving
changes
list Display input Confirm action
ok dependent list of or selection
tracks/functions
Note: Navigation (3456) key
assignments can be altered via the Handset
Keys setup menu. See Section 4.11.
The handset key functions are listed and described in the
tables below. Some keys change function in list and setup
modes. Normal play mode functions are denoted by the text
on each key and list/setup mode functions are denoted by
the text below each key. Keys with only one function are
listed in the table on the right.
3.3.2 Normal Play Mode Keys
Key Function
disp Switch display on or off. Toggle clock
display if configured.
vol + Increase volume
vol – Decrease volume
mute Mutes audio output
(repeat) Repeat selected track, programme or
playlist
(shuffle) Play tracks randomly from list
(setup) Display the setup menu
(info) Cycle through secondary input
information
(play/pause) Play or pause track
(previous) Go to previous track/station
(next) Go to next track/station
(stop) Stop playback
(reverse) Fast reverse track
(forward) Fast forward track
cd Sequentially selects the Analogue 1 and
Digital 1 inputs.
radio Sequentially selects the FM, DAB and
iRadio inputs.
pc Sequentially selects the UPnP™ and
Bluetooth inputs.
iPod Sequentially selects the USB, front panel
Spotify® and TIDAL inputs.
tv Input selection is NAC-N preamplifier
model dependent. See Section 4.11.2.
av Input selection is NAC-N preamplifier
model dependent. See Section 4.11.2.
hdd Input selection is NAC-N preamplifier
model dependent. See Section 4.11.2.
aux Input selection is NAC-N preamplifier
model dependent. See Section 4.11.2.
Note: Input selection key assignments can be
altered via the Handset Keys setup menu. See
Section 4.11.
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3. Operation and Control
3.4 The Naim App
The Naim App comprises pages dedicated to each
streaming source and input, and pages dedicated to set
up. The Naim App is intuitive in use and its capabilities and
principles are best learned by using it to congure your
NAC-N preamplier to suit your needs. To begin using the
Naim App follow the steps below:
• Download and install the Naim App on your iOS or
Android device.
• Ensure that the iOS or Android device is connected
to the same network as your NAC-N preamplier and
open the Naim App.
• From the Rooms menu select the Naim streaming
product you wish to control with the Naim App. The
diagram below illustrates selection of a NAC-N 272
from the Naim App setup page.
Note: If there are multiple Naim streaming products
connected to your network they will be listed for selection
on the Naim App rooms screen. The correct unit can be
identied either by its product name or, in the case of
multiple identical products, by the rst four characters of
each unit’s MAC address appended to its product name.
The individual MAC address is listed in the unit’s front
panel Setup menu under Network Settings.
Naim App Rooms
Note: The Naim App Settings menu enables preamplier
default names to be changed. Designating each one with a
name that reects their location will help make multiroom
control more satisfying and intuitive.
3.4.1 Selecting Inputs from the Naim App
With the desired NAC-N preamplier selected, the Naim
App Input icons will congure to reect the inputs available.
Tap the Input icon (which will display the current or default
input) and then select the required input. The diagram
below illustrates the Naim App home page and Input icons.
Note: Only one instance of the Naim App can be
connected to a single NAC-N preamplier at any time.
If a streaming source such as Spotify® is selected
automatically by the presence of a stream, the Naim App
display will switch to the appropriate streaming source page
and oer the controls available to that stream type. If an
alternative source is selected, the stream playback will stop
and the NAC-N preamplier will disconnect from the stream
source.
Naim App home
Rooms
Setup new mu-so
Rooms
Setup new mu-so
12
Page 15
3. Operation and Control
3.4.2 Setup using the Naim App
The Naim App provides comprehensive access to all NAC-N
setup parameters. The setup parameters and functions
are listed in the following paragraphs. The diagram below
illustrates the Naim App Settings page.
The Settings menu provides the following items: Alarm
Clock, Styles, Input settings, Audio Settings, Other settings,
Register your product and About.
Naim App settings
Alarm clock
The Alarm Clock menu enables the alarm time to be set and
the alarm source to be selected.
Styles
The Styles menu enables various Naim App background
options to be selected.
Input settings
The Input settings menu provides a variety of options
specic to each type of input.
Audio settings
The Audio settings menu provides a variety of audio control
and conguration options.
Other settings
The Other settings menu provides access to a variety of app
interface and conguration options.
Register your product
The Register product menu enables product registration
information to be sent to Naim.
About
The About menu provides third party licence information
and information on NAC-N preamplier rmware and
connection status.
13
Page 16
4. Set Up
Once your NAC-N preamplier is installed with mains power, network, radio aerial and any external connections made, it can
be switched on and set up for use.
The degree to which you modify the default settings of your NAC-N preamplier will depend upon the uses to which you
put it and the extent to which you use its capabilities. It may be that you have no need to modify the default settings at
all, however we would encourage you to read this section of the manual in order that you gain a full understanding of your
preamplier’s capabilities. The following paragraphs describe each setup menu in turn, starting with the home menu.
Select setup mode by pressing the handset setup ( ) key. Navigate around the setup menus using the handset navigation
keys (563) and make selections using the ok/list key. Exit setup by pressing the exit key or setup key.
4.1 The Setup Home Menu
The Home menu provides access to
the setup menus. The function of
each menu is as follows:
Language: Enables the
user interface
language to be changed.
Inputs: Enables various parameters for each
internal, external and streaming input
to be congured.
Rooms: Enables multiroom streaming to
Naim streamer units. The Rooms menu
is only visible when the multiroom input
is enabled (see Section 4.3.4).
Analogue Outputs: Congures analogue output settings.
Headphones: Congures headphone output options.
Network Settings: Congures network connection
settings.
Front Display: Congures display features.
Clock & Alarm: Congures the clock and alarm.
Handset Keys: Enables inputs to be assigned to
specic handset keys. Also enables
conguration of the handset navigation
(3456) keys.
System Automation: Congures system automation options.
Factory Settings: Enables interrogation of status,
deletion of all user presets and return
to factory default settings.
Each of the setup menus is described in the following
sections. Use the handset up (5) and down (6) and ok/list
keys to select a setup menu and make adjustments.
Setup 1/11
4Language
Inputs
Rooms
Analogue Outputs
4.2 The Language Menu
The Language menu enables the
user interface language to be
changed. Select setup mode and
use the handset ok/list key to select
Language. Use the handset up (5)
and down (6) and ok/list keys to select a language. Exit
setup mode by pressing the handset exit key.
Language 1/6
4English
Français
Deutsch
Italiano
4.3 The Inputs Menu
The Inputs menu enables a variety
of parameters to be adjusted
for each internal, external and
streaming input. Three parameters
are common to all inputs:
Enabled: Switches the source or input on or o and
displays or hides any associated menus.
Name: Enables user specied names to be attached
to sources or inputs. Use the handset or Naim
App to enter text.
Input Trim: Enables the relative level of sources and inputs
to be adjusted so that each is of an equal
volume. Adjust using the handset 6 or 5 ke y.
The unique parameters and options available for each input
are described in the following sections.
4.3.1 FM Input (if option tted)
Parameter Options
Seek Lock: Medium / High.
Sets the signal
level required
for the tuner to identify a station.
4.3.2 DAB Input (if option tted)
Parameter Options
Re-scan Stations: Re-scans for
stations.
Select Input 1/16
4FM
DAB
iRadio
Multiroom
FM 4/4
Enabled: Yes
Name: FM
Input Trim: 0
4Seek Lock: Medium
DAB 4/4
Enabled: Yes
Name: DAB
Input Trim: 0
4Re-Scan Stations
Note: The DAB input is only
implemented in units sold in countries where Digital Audio
Broadcasts are available.
14
Page 17
4. Set Up
4.3.3 iRadio Input
Parameter Options
Auto Disconnect: Select
time. Auto-
iRadio 4/5
Enabled: Yes
Name: iRadio
Input Trim: 0
4Auto Disconnect: Never
disconnect
is provided so that data usage limits
are not inadvertently exceeded by a
preamplier left connected to internet
radio.
Browse History: Yes / No. If Yes is selected the last
used station will display if it is available
when list mode is selected. If No is
selected the top station selection menu
will display.
4.3.4 Multiroom Input
Note: The multiroom input
must be enabled for a NAC-N
Multiroom 1/3
4 Enabled Yes
Name: Multiroom
Input Trim: 0
preamplier to operate as either a
server streamer or client streamer.
4.3.5 UPnP™ (Network) Input
Parameter Options
Server History: Yes / No.
If Yes is
UPnP 4/4
Enabled: Yes
Name: UPnP
Input Trim: 0
4Server History Yes
selected the
last used folder will display if its UPnP™
server is still available. If No is selected
the full list of available servers will
display.
4.3.6 USB Input
Parameter Options
Folder History: Yes / No.
If Yes is
USB 4/4
Enabled: Yes
Name: USB
Input Trim: 0
4Folder History: No
selected the
last used folder on the USB device will
display. If No is selected the top level
folder of the device will display.
4.3.7 Spotify® Input
With its Spotify® input enabled, a
NAC-N preamplier connected to
the same local network as a device
Spotify 4/4
Enabled: Yes
Name: Spotify
Input Trim: 0
4 Play Bitrate 320k
running the Spotify® app and in
receipt of a Spotify® stream will automatically select its
Spotify® input and play the stream.
Parameter Options
Play Bitrate: 96k / 160k / 320k. Enables the Spotify®
stream data rate to be selected to suit
internet connection bandwidth. Higher
data rates provide better audio quality
but require faster internet connection
speeds. The rate delivered in practice
depends on the data rates available
from Spotify® for the specic material.
4.3.8 TIDAL Input
With its TIDAL input enabled,
a NAC-N preamplier will
automatically select its TIDAL input
TIDAL 4/4
Enabled: Yes
Name: TIDAL
Input Trim: 0
4 Play Bitrate HiFi
when in receipt of a TIDAL stream
from the Naim App.
Parameter Options
Play Bitrate: Normal / High / HiFi. Enables the
TIDAL stream data rate to be selected
to suit internet connection bandwidth.
Normal bitrate: 96kbps AAC format.
High bitrate: 320kbps AAC format, HiFi
bitrate: 16 bit 44.1kHz FLAC format.
4.3.9 Bluetooth Input
With its Bluetooth input enabled,
and when paired with a Bluetooth
audio device, a NAC-N preamplier
Bluetooth 4/5
Name: Bluetooth
Input Trim: 0
4Discovery: 272 BT XXXX
Open Pairing No
will automatically select its
Bluetooth input when in receipt of a stream from the paired
device. See Section 9 for more on pairing.
Parameter Options
Discovery: User denable. Enables the NAC-N
preamplier Bluetooth name to be
changed. Use the handset or Naim App
to enter text.
Open Paring: Yes / No
Selecting open pairing enables any
Bluetooth audio device within range to
connect without pairing.
15
Page 18
4. Set Up
4.3.10 Front Panel Input
NAC-N 172 XS
Parameter Options
Format: Auto /
Front 4/4
Enabled: Yes
Name: Front
Input Trim: 0
4Format: Auto
Analogue /
Digital. If Auto is selected the front
panel input will automatically detect
the audio signal format (analogue
or digital) and congure the input
appropriately. Specifying Analogue
or Digital will x the front panel input
format.
4.3.11 Rear Panel Digital Inputs
Parameter Options
Unstable Source: Yes / No
Select No
Digital 1 4/4
Enabled: Yes
Name: Digital 1
Input Trim: 0
4Unstable Source: No
unless the
preamplier has problems locking to a
digital signal. Selecting Yes will enable
the unit to play unstable digital signals,
however sound quality will be slightly
degraded.
4.3.12 Rear Panel Analogue Inputs
Parameter Options
AV Fixed Volume: Yes / No
If No is
Analogue 1 4/4
Enabled: Yes
Name: Analogue 1
Input Trim: 0
4 AV Fixed Volume No
selected the
input will behave normally. If Yes is
selected the input will operate at a
xed volume and the preamplier
volume control will be disabled. This
enables the preamplier to be used in
multi-channel AV systems with volume
control handled by the AV processor.
Take care when selecting AV Fixed
Volume.
Note: AV xed volume is available on rear panel analogue
inputs only.
4.5 The Analogue Outputs Menu
The Analogue Outputs menu enables
main output DIN and RCA socket
options to be congured, maximum
volume and balance to be set, and
the line outputs to be enabled.
Volume and balance settings apply to DIN and RCA outputs.
Parameter Options
Max. Volume: 0 to 100 (adjust with handset 6 or 5)
Balance: -10 to +10 (adjust with handset 6 or 5)
Outputs: DIN / RCA / DIN+RCA
Line Out Enable No / Yes
Note: Main output socket options and line output options
are not available on the NAC-N 172 XS.
Analogue Outputs 1/4
4Max. Volume: 100
Balance: 0
Main Out DIN
Line Out Enable No
4.6 The Headphones Menu
The Headphones setup menu
enables the Max. Volume parameter
to be selected:
Parameter Options
Max. Volume: 0 to 100 (adjust
with handset 6 or 5)
Headphones 1/1
4Max. Volume: 100
4.7 The Network Settings Menu
The Network Settings menu
enables network parameters to be
customised to suit the router and
network. The options are tabulated
and described in the following
sections:
Parameter Options
Name: User denable. Use the handset or
Naim App to enter text.
Wireless: Not Used / Wi-Fi Network Name
Status: Connected / No Signal / Login Failure /
Busy / Etc.
DHCP: Yes / No
MAC: Displays the unit’s MAC address.
Network Settings 1/5
4Name: 272-0131
Wireless: Not Used
Status: Not Connected
DHCP Yes
4.4 The Rooms Menu
The Rooms menu enables NAC-N
preampliers to broadcast audio
from their Spotify®, TIDAL, UPnP™,
iRadio, or USB inputs simultaneously
to up to four other Naim streamer
products connected to the same home network.
Note: The Rooms menu is only visible when the multiroom
input is enabled. See Section 4.3.4.
Rooms 1/2
4aQute-3F65
Uniti-2E23
The Name parameter enables the preamplier’s default
network name to be changed.
The Wireless parameter enables a wireless network to be
chosen and joined. See Section 4.7.1 below for detailed
wireless set up notes.
Status displays the current network connection status.
The DHCP parameter enables the network settings to be
modied. In most cases leaving the option set to DHCP will
be the appropriate choice. See Section 4.7.2 below for notes
on non-DHCP network connection.
16
Page 19
4. Set Up
Note: Devices installed on a network have an IP address
through which they are identied by all the other items
on the network. DHCP is a set of rules that enable the
automatic allocation of addresses as items are connected
(or switched on while connected) to the network. All
NAC-N preampliers are congured by default to use
DHCP.
Note: If a NAC-N preamplier is connected to a network
both wirelessly and via a wired connection, the wired
connection will take priority.
4.7.1 Wireless Network
Connection Set Up
If the Wireless parameter is selected
in the Network Settings menu the
Select Network menu will display
a list of the available networks.
Select Network 3/6
<Don’t Use Wireless>
LingNet
4GreenNet
TomNet
An option not to use a wireless
connection is also provided.
Note: NAC-N preampliers are compatible with the most
commonly used Wi-Fi standards. Routers that support
802.11b and 802.11g will work, however those with 802.11n
compatibility are recommended for best results.
Note: As with any wireless network hardware, connection
reliability will be aected by both network router
performance and Wi-Fi signal quality. To minimise
the possibility of poor connection reliability, NAC-N
preampliers should be connected to network audio
sources by no more than one wireless “leg”. Other
“legs” necessary between a NAC-N preamplier and the
network audio sources should be wired.
Note: NAC-N preampliers cannot connect to a “hidden”
wireless network.
If the selected network is secure
and requires a password to join, an
alert message will display. Pressing
Now enter your wireless
passphrase or access key.
Press OK to continue
the handset ok/list key will then
open a text entry screen for entry of
the password.
flatfish abc
Use the handset numeric/text keys
to enter the password taking care
flatfish
Press OK to confirm
to ensure that the letter case is
correct. Press the handset ok/list
key when text entry is complete.
In the illustration the password is
“atsh”.
Connected
Press OK To Finish
If the network is successfully joined
a conrmation screen will display.
If an incorrect password is entered
an alert message will display.
Can’t Login
Note: Some routers may also
require a MAC address to be
entered before allowing NAC-N
preampliers to join a wireless network. This type of
security feature is known as ‘MAC address ltering’.
NAC-N preamplier MAC addresses are shown in both
the Network Settings and Factory Settings menus.
Note: The wireless password key is created when the
wireless router is rst set up and could be a word or
a series of numbers and letters. If the password is not
known, check on the router settings page or with the
person who initially set up the router.
Note: If a router oers multiple security congurations,
only the most secure one will be oered.
Note: If WEP security is used the router should be set to
“auto” or “open” authentication.
If the selected network is insecure
and requires no password, an alert
message will display. Pressing the
handset ok/list key will immediately
connect your NAC-N preamplier to
the network and display a conrmation screen.
Note: Wireless connection diculties can sometimes be
resolved by changing the wireless connection channel in
the router settings.
4.7.2 Non-DHCP (Static)
Network Connection
If DHCP is de-selected in the
Network Settings menu, ve further
parameters will be displayed.
Parameter Options
IP: User denable
(numerical entry)
Mask: User denable (numerical entry)
Gateway (Gtwy): User denable (numerical entry)
DNS1: User denable (numerical entry)
|
DNS2: User denable (numerical entry)
These settings enable a NAC-N preamplier to connect
to a network using a xed IP address. On selecting each
one in turn, numerical entry screens will be displayed that
require completion with the appropriate network IP address
settings. Consult your network router’s user documentation
for help with specifying xed IP address settings.
Press OK To Re-Try
This wireless network is
insecure and requires no
passphrase or access key.
Press OK To Connect
Network Settings 1/5
4IP: 192.168.0.80
Mask: 255.255.255.0
Gtwy: 192.168.0.1
DNS1: 192.168.0.1
17
Page 20
4. Set Up
4.8 The Front Display Menu
The Front Display menu enables the
behaviour of the front panel display,
logo illumination, clock display and
logo-touch muting to be modied.
The options are tabulated and
described in the following section:
Parameter Options
O During Mute: Yes / No
Auto O: Select from list
Clock When O: Yes / No
Logo O: If Muted / If Display O /Always /
Never
Logo Mute: Yes / No
When O During Mute is selected the front panel display
will switch o when mute is engaged. Auto O denes the
length of time the display will remain switched on after
the last interface operation is carried out. Time periods of
between 10 seconds and 1 hour can be selected.
Note: If the display has been switched o using the
handset disp key this setting will take priority over the
Auto O setting. The display will always switch on briey
when control commands are received.
The Clock When O settings enables the clock to remain
displayed when other display settings are switched o.
Note: The clock display will dim automatically after 10
seconds if mute is selected.
The Logo O settings select the circumstances in which
the front panel logo illumination will switch o. Logo Mute
settings engage or disengage the touch-mute function of
the front panel logo.
Front Display 1/5
4Off During Mute: No
Auto Off: 2 mins
Clock When Off : Yes
Logo Off If Muted
4.9 The Digital Output Menu
The Digital Output menu enables
the digital output to be switched
on and its signal format to be
congured.
Parameter Options
Enabled: Yes / No
Output: Native / 96kHz 24bit. If Native is
selected, the digital output format will
reect the input format. If 96kHz 24bit
is selected, the output is re-sampled to
96kHz and 24bit resolution.
Digital Output 1/2
4Enabled: No
Output: Native
4.10 The Clock and Alarm Menu
The Clock & Alarm menu enables
the NAC-N preamplier clock to be
set and alarms to be congured.
Selecting Set Weekday Alarm or Set
Weekend Alarm opens a menu that
oers the following parameters and options:
Parameter Options
Enabled: Yes / No.
Selecting
Yes primes
the alarm.
Selecting No disables the alarm.
Alarm Time: 07:00. Selecting the time opens a
screen that enables the alarm time to
be set by using the remote navigation
(5 6 3 4) and numeric keys.
Input: External inputs or radio presets can be
selected to become the alarm audio
source.
Note: The radio can only be used as an alarm signal using
stored radio presets.
Volume: The alarm audio volume can be set
independently of the default volume
using the remote handset up (5) and
down (6) keys.
Weekday alarms operate on Mondays to Fridays. Weekend
alarms operate on Saturdays and Sundays.
Note: NAC-N preampliers have no default alarm tone
and can only use their external inputs or radio presets
as alarm signals. If the use of an alarm is critical, it is
important to be certain that the alarm signal will be active
when the alarm is set to sound. This is especially relevant
to internet radio stations which may stop broadcasting
unexpectedly.
Selecting Adjust Time Zone enables
the time zone to be set. The handset
up (5) and down (6) keys are used
to select + or – with respect to GMT
(Greenwich Mean Time).
Note: The clock does not by default adjust automatically
to take account of localised “daylight saving” however
automatic daylight saving can be enabled from the Naim
App.
Clock & Alarm 1/5
4Set Weekday Alarm
Set Weekend Alarm
Adjust Time Zone
Resync Time From Net
Weekday Alarm 1/4
4Enabled: No
Alarm Time: 07:00
Input: Fluid Radio
Volume: 30
Time Zone
±00:00
Now: 12:04 Mar 16th 2014
Selecting Resync Time From Net enables the clock to resynchronise with its selected time server.
18
Page 21
4. Set Up
Note: The clock re-syncs with its internet time server
automatically every 24 hours. If it is unable to connect it
retries every 30 minutes.
Selecting Advanced Setup enables an alternative internet
time server to be selected. Contact your local Naim retailer
for more information on selecting time servers.
4.11 The Handset Keys Menu
The Handset Keys menu enables
the inputs assigned to each handset
input selection key (cd, radio,
pc, iPod, tv, av, hdd, aux) to be
changed, and the function of the
handset navigation keys (5634) to be congured.
4.11.1 Navigation Key Functions
Selecting the Up/Down Actions
parameter from the Handset Keys
menu opens a further menu that
enables the selection from two
modes of handset up (5) and down (6) key function: Input
and O. If Input is selected the keys will select inputs and if
O is selected the keys will be disabled in respect of input
selection.
Selecting the Left/Right Actions
parameter from the Handset Keys
menu will open further menus
enabling the conguration of
the left (3) and right (4) keys
independently for the CD, USB, Radios and UPnP™ inputs.
The options available for the USB, UPnP™ and CD inputs
are Track, List and O. If Track is selected the left (3) and
right (4) keys will select the previous or next track. If List is
selected the keys will return the display to list mode, and if
O is selected the keys will be disabled in respect of track
or list selection.
Handset Keys 1/10
4Up/Down
Left/Right
CD
Radio
Up/Down Actions 1/2
4Input
Off
Left/Right 1/3
4Radios Station
USB Track
UPnP Track
4.11.2 Input Key Assignments
Each handset input selection key
may have up to four inputs assigned
to it. The default assignments are
Handset Keys 4/10
Up/Down
Left/Right
CD
4Radio
shown in the following table:
Default Input Key Assignments
NAC-N 172 XS NAC-N 272
Key Inputs Inputs
cd Analogue 1, Digital 1 Analogue 1, Digital 1
radio FM, DAB, iRadio FM, DAB, iRadio
pc UPnP™, Bluetooth UPnP™, Bluetooth
iPod USB, Front, Spotify®, TIDAL USB, Spotify®, TIDAL
tv Analogue 2, Digital 2 Analogue 2, Digital 2
av Digital 3 Analogue 3, Digital 3
hdd Digital 4 Digital 4, Digital 5
aux Unassigned Digital 6
Beneath the Up/Down keys and
Left/Right keys parameters the
Handset Keys menu displays a list
of the eight handset input keys.
Inputs On:Radio 1/4
41. FM
2. DAB
3. iRadio
4. Unassigned
Selecting one of the keys then
displays a list of the four existing assignments to that key
(including unassigned). To change an assignment, select the
assignment number to be altered and, from the subsequent
menu, select the desired input.
The options available for the Radios
input are Station, Preset, List, and
O. If Station is selected the left
(3) and right (4) keys will select
Left/Right Actions 1/3
4Track
List
Off
the next or previous station. If
Preset is selected the keys will
select the previous or next stored
station preset. If List is selected the
keys will return the display to list
Left/Right Actions 1/4
4Station
Preset
List
Off
mode, and if O is selected the keys
will be disabled in respect of station or preset selection.
Note: Front panel navigation button actions will also be
aected by changes made in the Handset navigation key
functions.
19
Page 22
4.12 The System Automation Menu
4. Set Up
With System Automation enabled
and the NAC-N preamplier
Remote Out socket connected to
System Automation 1/2
4CD Player
Advanced Setup
the Remote In socket of a Naim CD
player, the Naim App can provide
system-wide control.
The System Automation menu comprises two items. These
are described in the following paragraphs:
Selecting CD Player opens a menu
that makes CD transport control
available through the Naim App.
CD Player 1/2
4Enabled No
Input Used Analogue 1
Select Enabled to enable CD control
and select Input Used to specify the
NAC-N preamplier input that the CD player is connected
to.
Note: CD player transport control using the
NAC-N preamplier handset via System Automation is not
possible. The Naim App must be used.
Selecting Advanced Setup opens a menu that provides
access to a range of advanced conguration parameters.
These parameters will not normally need adjustment.
Contact your retailer, distributor or Naim directly for more
information if required.
4.13 The Factory Settings Menu
The Factory Settings menu enables
system status information to be
displayed, handset commands to
be analysed, radio presets to be
deleted, system automation to be
reset and default settings to be restored. The options are
listed below:
Parameter Options
System Status: Select to display
Handset IR Mon.: Select to display
Clear All Presets: Yes / No
Reset Sys Auto: Yes / No
Reset All Settings: Warning displayed: Resetting to
factory defaults. You will lose ALL
user settings. Press front panel play to
continue.
Factory Settings 1/5
4System Status
Handset IR Monitor
Clear All Presets
Reset Sys. Automation
20
Page 23
5. Preamplifier
NAC-N preampliers incorporate a high performance stereo preamplier based on established Naim design principles. Once
a preamplier is connected to an appropriate power amplier, using it is simply a matter of selecting the desired input and
setting the volume level.
5.1 Selecting Inputs
Inputs can be selected by pressing the front panel input
button or one of the handset input selection keys.
Note: The handset up (5) and down (6) keys or front
panel up (5) and down (6) buttons will also scroll
through and select inputs if this navigation key action has
been congured. See Section 4.11.1.
Note: The NAC-N 172 XS front panel input is automatically
selected as soon as a plug is inserted.
Pressing the front panel input button scrolls through
and selects the inputs. Pressing one of the handset input
selection keys either directly selects a single input or scrolls
through a group of inputs.
Note: The default input selection key assignments may be
altered within the NAC-N preamplier set up menus. See
Section 4.11.2.
Selecting an input will route the input audio signal to the
preamplier outputs.
5.3 Preamplifier Display
In normal operation the NAC-N preamplier front panel
display primarily shows information relating to the selected
input. It will change temporarily to show adjustments such
as volume level and signal mute state as these are made.
5.4 Signal Outputs
NAC-N preampliers provide a preamplier output, a line
output and a headphone output.
The preamplier output is designed to be connected to a
downstream power amplier. The line output is designed to
enable a variety of downstream ancillaries to be connected.
These might include a second headphone amplier or a
remote integrated amplier.
The NAC-N preamplier headphone amplier is able to
drive most commonly available headphones. Insertion
of a headphone plug will mute the NAC-N preamplier
preamplier outputs.
The preamplier will momentarily display input names
as they are selected before displaying input specic
information; USB track or radio preset for example.
If an input is not operational (for example, no USB memory
stick is attached) when selected, the NAC-N preamplier
will display a descriptive alert message.
5.2 Volume Control
NAC-N preamplier volume control is achieved by using
front panel volume control, Naim App or the handset vol–
and vol+ keys. The volume control aects the preamplier
and headphone outputs.
The mute function silences the NAC-N preamplier
headphone, preamplier and line outputs. Mute is engaged
or disengaged by touching the front panel logo or pressing
the handset mute key. Mute is indicated by the display
volume icon ashing.
Note: Logo-touch muting can be disabled. See Section 4.8
21
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6. Multi-format Tuner
NAC-N preampliers incorporate a multi-format radio tuner able to play internet radio streams and, optionally, DAB and FM
broadcasts. Internet radio requires a high-speed internet connection via a network router that incorporates an appropriate
rewall. DAB and FM operation requires an appropriate aerial to be connected to the rear panel aerial input. A total of 40
station presets (favourites) across all three formats can be stored. Select the FM, DAB or iRadio input to begin.
6.1 FM Tuner – Seeking Stations
To nd FM stations press the
handset prev ( ) or next ( ) keys
and the tuner will scan the FM
band locking on to and stopping
at stations that exceed a specic
signal strength.
Note: The interlocked circle icon at the top right of the
display indicates a stereo signal.
Note: The signal strength lock threshold may be altered
within the set up menus. See Section 4.3.1.
If stations are RDS enabled their names, rather than just
their frequencies, will be displayed. Pressing the handset
info ( ) key will sequentially display any station info
broadcast, station genres if dened and station frequency. If
stations are not RDS enabled, the info key will display only
the station frequency.
When the scan stops at a station either press the prev ( )
or next ( ) key again to ignore the station and continue the
scan or store the station as a preset favourite by pressing
the handset store key.
Pressing the handset ok/list key displays an FM options
menu that enables mono mode to be selected. Mono
operation can sometimes be useful to reduce noise and
interference.
42
BBC R4
92.9MHz
FM
6.2 DAB Tuner – Seeking Stations
scroll through the list and the ok/list key to select a station.
In long lists the handset numeric/text keys can be used to
jump through the list alphabetically.
Once a station is selected, pressing the handset info ( ) key
will sequentially display the station genre, signal strength,
bit rate and any station info broadcast.
6.3 iRadio Tuner – Seeking Stations
When a NAC-N preamplier is
connected to a network with
high speed internet access it will
automatically download a list of
available internet radio stations.
When the iRadio input is subsequently selected, a list mode
menu will be displayed that shows all the available stations
sorted by location, genre, podcast location, podcast genre,
new station and most popular stations. The display will
automatically enter list mode so the handset up (5), down
(6), left (3) and ok/list keys can be used to browse the
menus and select stations. In long lists the handset numeric/
text keys can be used to jump through the list alphabetically.
Once a station is selected the display will exit from list mode
and revert to normal mode. To re-enter list mode for further
list browsing and selecting press the handset ok/list key.
Pressing the handset info ( ) key while a station is
playing will sequentially display the station (stream) name,
elapsed time, stream info, buer level and any station info
broadcast.
Internet Radio 3/8
Added Stations
Naim’s Choice
4Location
Genre
When the DAB Radio input is rst
selected the tuner must scan for
stations. Select the DAB input and
press the handset ok/list key to
begin the scan. Search progress
and the number of stations found
will be displayed. When the scan is
complete the stations will be listed
alphabetically and the rst station in
the list selected.
DAB stations can be selected either alphabetically in turn by
pressing the handset prev ( ) or next ( ) keys, or selected
in list mode by pressing the ok/list key and browsing the
station list. Use the handset up (5) or down (6) keys to
42
No Stations
Press list to rescan
42
DAB Rescan
47% Found 15
DAB
DAB
Note: Buer level indicates the quantity of stored data
and reects the ability of the network to provide data at
the necessary rate.
It is possible for an internet radio
station listed to be “o-line” and
be unavailable when selected. If
this occurs an alert message will be
displayed.
Note: If mute is engaged for more than ve minutes while
an internet radio station is selected, the data stream will
be stopped in order to save network bandwidth. The
stream will re-start when mute is disengaged.
22
42
Can’t Play
Station unavailable
iRAD
Page 25
6. Multi-format Tuner
6.4 Adding iRadio Stations
The Naim Radio Guide website enables iRadio stations
not included in the standard list to be downloaded to your
NAC-N preamplier. To access the website and add stations
follow the steps below.
• With a computer connected to the same network as
your NAC-N preamplier, browse to:
http://naim.vtuner.com
• Enter the identication (ID) of your NAC-N preamplier
on the web page. The ID is the unit’s MAC address. This
can be found via the following menus: Setup > Factory
Settings > System Status > MAC.
Note: You can register a username and password so that
the MAC address is not required on any subsequent visit.
• To add stations follow the My Added Stations link and
provide the information required. Click on the arrow to
complete the procedure.
• The added station will then be visible on the Naim
Radio Guide home page.
• To access the stations on your NAC-N preamplier,
select the iRadio input followed by Added Stations.
6.5 Storing Radio Presets
When the handset store key is
pressed the display will show a
menu that enables conrmation
of the preset store and options to
rename or delete a stored preset.
Presets 1/3
4Store 91.15MHz
Rename Preset
Delete Preset
Selecting Delete Preset opens a preset list menu. Scroll to
the desired preset and press the ok/list key.
Note: Preset operations (store, rename or delete) are
not possible directly from list mode. The store key must
be pressed when in normal play mode to access these
options.
Note: Preset operations (store, rename or delete) can also
be managed using the Naim App.
6.6 Selecting Radio Presets
To select a preset press the handset
preset key to open the Browse
Presets menu. Scroll to the desired
preset and press the ok/list key.
Note: The Browse Presets menu
displays presets stored across all three radio formats (FM,
DAB, iRadio). Selecting a preset from a radio format other
than the one currently selected will automatically switch
the preamplier to that format.
Note: It is possible for an internet radio station stored as a
preset to be “o-line” and be unavailable when selected. If
this occurs an alert message will be displayed.
Note: Pressing the preset key will display the preset list
regardless of the currently selected input.
Note: Radio presets can also be selected using the Naim
App.
Browse Presets 3/20
1 Radio Paradise iRAD
2 Spire FM 102 iRAD
43 Heart London iRAD
4 Deep Vibes Radio iRAD
Selecting the store option opens a
menu that enables the preset to be
stored in one of the forty locations.
Scroll to the desired location and
Store Station 5/40
45 Naim Radio
6 Empty
3 Empty
4 Empty
press the ok/list key.
Note: Some factory default presets are stored in the rst
ve storage locations. The default presets can be deleted
but will be restored if the unit is subject to a factory reset.
Selecting Rename Preset opens a
menu that provides the opportunity
to rename a previously stored
station. Scroll to the preset to be
Rename Preset 3/20
1 Radio Paradise iRAD
2 Spire FM 102 iRAD
43 Heart London iRAD
4 Deep Vibes Radio iRAD
renamed and press the ok/list key to
open a text entry screen. Use the handset numeric/text keys
in text entry mode to select characters. Press the ok/list key
to save the new preset name.
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7. USB Audio
NAC-N preampliers can play audio les stored on USB memory sticks connected to the front panel USB socket. Begin by
inserting a memory stick and selecting USB input.
7.1 USB Media and File Compatibility
USB memory sticks must be in Windows/DOS format (FAT/
FAT32) to be used with NAC-N preampliers. Apple formats
are not compatible.
NAC-N preampliers can play audio les stored on USB
Sticks in the following formats: DSD (NAC-N 272 only), MP3,
M4A, ALAC, AAC, LPCM16/24, FLAC, WMA, WAV, AIFF or
Ogg Vorbis. Files must be free of digital rights management
playback restrictions such as the iTunes FairPlay system.
7.2 Browsing and Playing
USB Files
With a USB memory stick inserted
and the USB input selected, the
display will enter list mode and
show the structure of stored audio les. Use the handset
up (5), down (6), left (3) and ok/list keys to browse and
select items.
Note: The memory stick can be safely connected or
disconnected at any time.
Selecting a folder will display the list of les contained
within and selecting a single le will begin playback.
Playback will continue through any list of les contained
within a folder. The order of play can be shued
(randomised) by pressing the handset shue ( ) ke y.
In long lists of items the handset numeric/text keys can be
used to jump through the list alphabetically.
Once playback is underway the display will exit from
list mode and revert to normal mode where the handset
transport keys ( ) can be used to control playback.
To re-enter list mode for further list browsing and selection,
press the handset ok/list key.
USB 4/18
Brilliant Corners.wav
Grace and Danger.wav
Nelly The Elephant.wav
4Solid Air.wav
During playback, pressing the handset info ( ) key will
alternately display data stream info and track elapsed time.
24
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8. Network Audio Streaming
In addition to enabling internet radio to be played, a NAC-N preamplier network connection enables audio les stored on
UPnP™ servers, audio streams from Spotify® Connect devices, audio streams from TIDAL, and audio streams from other
Naim streamers to be played. Your NAC-N preamplier must be connected, either wirelessly or via network cabling, to a
network router. If the router provides an internet connection it should incorporate a rewall.
8.1 UPnP™ Streaming
NAC-N preampliers can play audio stored on any device
that incorporates UPnP™ server software (provided that
device is on the same network as the NAC-N preamplier).
The UPnP™ server is usually a Windows or Apple home
computer, although some Network Attached Storage (NAS)
drives incorporate a UPnP™ application.
Note: The Naim UnitiServe and HDX hard disk music
players can operate as UPnP™ servers.
Windows Media™ Player version 11 or above incorporates
UPnP™ support and a variety of third party UPnP™
applications are also available that are compatible with both
Windows and OS X operating systems.
In the case of the Windows UPnP™ server, the following
steps must be taken before music can be streamed to a
NAC-N preamplier:
• Ensure Windows Media™ Player version 11 or above is
installed.
• Enable Windows Media™ Player le sharing. From
the Media Player Options dialogue select Library >
Congure Sharing… then select Share my media.
• Ensure the rewall is congured to allow le sharing.
8.1.1 Audio File Compatibility
The audio les stored on the UPnP™ servers attached to
the network may be in DSD (NAC-N 272 only), MP3, M4A,
ALAC, AAC, LPCM16/24, FLAC, WMA, WAV, AIFF or Ogg
Vorbis formats. Files must be free of any digital rights
management playback restrictions such as the iTunes
FairPlay system.
8.1.2 Scanning Servers and
Playing Files
When the NAC-N preamplier
UPnP™ input is selected a list of
available UPnP™ servers on the
network will be displayed. The display will automatically
enter list mode so the handset up (5), down (6) and ok/list
keys can be used to browse and select the desired server.
UPnP 1/2
4Allegro Media Server
NAS Disk
The manner in which the UPnP™
server is set up will dene how the
audio les and playlists it holds are
listed and displayed. In most cases
Playlists 3/12
90s Music
Audiobooks
4Favourites
Party
the default setup will list and display
les by artist and album, but list by genre and predened
playlists may also be available.
Note: Playlists cannot be generated or stored on the
NAC-N preamplier. To play a playlist it must reside on
the UPnP™ server on on the Naim App..
Selecting one of the playlist
categories using the up (5), down
(6) and ok/list keys will display a
menu showing items that fall into
Favourites 3/22
Ball and Chain
Cycle Song
4Motel Lullaby
Vacant Chair
the selected category. An entire
category can be selected for playback by using the up (5),
down (6) keys followed by the play/pause ( ) key.
Alternatively, selecting a category using the up (5) and
down (6) keys followed by the ok/list key will display the
full list of tracks contained within the category. Tracks can
then be selected for playback by using the up (5), down
(6) and ok/list keys.
In long lists the handset numeric/text keys can be used to
jump through the list alphabetically.
Once playback is underway the NAC-N preamplier display
will exit from list mode and revert to normal mode where the
handset transport keys ( ) can be used to control
playback. To re-enter list mode for further list browsing and
selecting press the handset ok/list key.
During playback, pressing the handset info ( ) key will
sequentially display the server name, buer level, track
elapsed time and stream (audio le) information.
Note: Buer level indicates the quantity of stored data
and reects the ability of the network to provide data at
the necessary rate.
Note: Allegro Media Server
(shown in the illustrations) is a
UPnP™ Media Server application
that runs on OS X or Windows
computers and provides access
to media les and iTunes library
content from UPnP™ media players.
Allegro Media Server 4/4
Albums
Artists
Genres
4Playlists
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8. Network Audio Streaming
8.2 Spotify® Connect Streaming
With its Spotify® input enabled (see Section 4.3.7), a NAC-N
preamplier connected to the same local network as a
device running the Spotify® app, and in receipt of a Spotify®
stream, will automatically select its Spotify® input and play
the stream. The streamed audio programme will display
on the NAC-N preamplier front panel and on the Naim
App. Programme transport ( ) and volume can be
controlled using the remote control handset, the front panel
controls or the Naim or Spotify® apps.
To play a Spotify® stream, open the Spotify® app and
select the Spotify® Connect logo. The available playback
devices will be listed for selection. Select the desired one to
nominate it as the Spotify® Connect playback device. Once
selected, Spotify® playback will commence, after a short
delay, on the selected device.
8.3 TIDAL Streaming
With its TIDAL input enabled (see Section 4.3.8), a NAC-N
preamplier in receipt of a TIDAL stream, will automatically
select its TIDAL input and play the stream. TIDAL account
access, browsing and playback control is fully integrated
into the Naim App. The streamed audio programme will
display on the NAC-N preamplier front panel and on the
Naim App. Programme transport ( ) and volume
can be controlled using the remote control handset, the
front panel controls or the Naim App.
Spotify® playback
Spotify® Connect
logo
Spotify® Connect
Dialogue
To play a TIDAL stream, open the Naim App, select the
TIDAL input and choose the programme material to play.
NAC-N preamplier
Volume control
26
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8. Network Audio Streaming
8.4 Multiroom Streaming
NAC-N preampliers can play audio streams broadcast from
other Naim streamer products connected to the same home
network.
Note: NAC-N preamplier units that broadcast audio
to others are known as “server streamers”. NAC-N
preamplier units that receive audio are referred to as
“client streamers”.
With its multiroom input enabled, a
client streamer, when in receipt of
a stream, will automatically select
its multiroom input and play the
stream. The client streamer will
display its “now playing” screen. Its
list function, menu navigation and
transport controls (except stop) will
not function while the multiroom
input is active.
To disconnect a client streamer
locally, press the handset stop key,
the front panel stop button or select
an alternative input. The client
streamer can be reconnected only
by re-selecting it from the server streamer’s Rooms menu.
Inputs 4/16
iRadio
4 Multiroom-Disabled
UPnP
USB
Multiroom 1/1
4 Enabled No
Multiroom 1/3
4 Enabled Yes
Name: Multiroom
Input Trim: 0
Once a client streamer is connected to the server streamer,
audio playing via the server streamer’s Spotify®, TIDAL,
UPnP™, iRadio, or USB inputs will also play simultaneously
via the client streamer. Up to four client streamers can be
selected simultaneously to play the server streamer’s audio.
To disconnect a client streamer at the server streamer, use
the handset navigation keys to select the desired connected
client in the Rooms menu and press the handset ok/list key.
Note: Connected client streamers are identied by a tick
mark alongside their names in the Rooms menu.
Note: Server streamer broadcasts are limited to the
following digital audio formats:
ALAC up to 44.1kHz/16 bit, AAC up to 48kHz/16 bit, MP4
up to 48kHz/16 bit, MP3 up to 48kHz/16 bit, WMA up
to 48kHz/16 bit, AIFF up to 48kHz/24 bit, FLAC up to
48kHz/24 bit, WAV up to 48kHz/24 bit.
8.4.1 Server Streamers
With its multiroom input enabled,
selecting Rooms from the Setup
menu will prompt a NAC-N
preamplier unit to search for
Setup 3/11
Language
Inputs
4Rooms
Speakers
other Naim streamers with enabled
multiroom inputs. Selecting one
of the streamers found by the
search will nominate the NAC-N
Rooms 1/2
4aQute-3F65
Uniti-2E23
preamplier as the server and
the selected streamer as a client.
The selected client streamer will immediately switch to its
multiroom input.
27
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9. Bluetooth Streaming
In addition to playing streamed audio via a local network,
NAC-N preampliers can play audio over a Bluetooth
wireless connection from appropriately equipped playback
devices. Bluetooth connection is congured by default to
be secure so a NAC-N preamplier must be paired with
specic playback devices.
Note: Pairing between Bluetooth devices means that the
devices “know” and “remember” each other. Once paired,
Bluetooth devices can connect automatically when within
range.
Note: Bluetooth wireless connection has a relatively
limited range. A maximum of around 10 metres is typical
in domestic environments, however physical obstructions
in the transmission path may result in reduced range.
To pair a NAC-N preamplier with a Bluetooth audio device
select the Bluetooth input and press the handset
play/pause key ( ).
The NAC-N preamplier will enter “discovery mode”
and become available for pairing in the Bluetooth device
Bluetooth setup menu.
Note: The default NAC-N preamplier Bluetooth name
incorporates the last four characters of the unit’s MAC
address. The MAC address can be found listed in the
Setup menu under Network Settings.
Bluetooth connection
Bluetooth playback
Note: Up to sixteen Bluetooth devices can be paired
simultaneously. If a seventeenth device is paired the
oldest paired device will be deleted.
Once successfully paired with a Bluetooth device, the
NAC-N preamplier will be available to the audio apps
on the device. The NAC-N preamplier will switch
automatically to its Bluetooth input when in receipt of a
Bluetooth stream.
The Bluetooth input setup menu oers further Bluetooth
conguration options and setup parameters, including
the option to congure an “open” Bluetooth connection
that does not require pairing. See Section 4.3.9 for more
information.
Note: If multiple devices are paired, the NAC-N
preampliers will play from the rst device from which
it receives a stream. If a stream from a dierent paired
device is required, the rst device must be disconnected.
Press the handset or front panel exit key to disconnect.
Bluetooth pairing and playback with an Android mobile
device is illustrated in the diagrams. Bluetooth on an iOS
device is similar.
28
Page 31
10. Specifications
Parameter NAC-N 172 XS NAC-N 272
Outputs Preamplier (1 x DIN, 1 x RCA) Preamplier (2 x DIN, 1 x RCA)
Line (1 x RCA) Line (1 x RCA)
Headphones (1 × 3.5mm) Digital S/PDIF (1 x BNC)
Headphones (1 × 6.3mm)
Preamp Output 775mV
Line output 275mV
Frequency Response 5Hz – 40kHz 4Hz – 40kHz
S/N Ratio 80dB 87dB
Analogue Inputs 3 ( 1 x DIN, 1 x RCA, 1 × 3.5mm) 3 ( 1 x DIN, 2 x RCA)
Analogue Input Sensitivity 275mV
Analogue Input Overload 34dB 34dB
Digital Inputs 5 (2 x RCA, 2 x TosLink, 6 (1 x BNC, 2 x RCA, 3 x TosLink)
1 x miniTosLink)
Digital Input Sample Rate Coaxial – 192kHz, Optical – 96kHz
Other Inputs DAB/FM, USB, Ethernet, DAB/FM, USB, Ethernet,
Wi-Fi, Bluetooth Wi-Fi, Bluetooth
iRadio Service vTuner 5* full service
Audio Formats WAV and AIFF (up to 24bit/192kHz), FLAC (up to 24bit/192kHz), ALAC (up to 24bit/96kHz),
WMA (up to 16bit/48kHz), Ogg Vorbis (up to 16bit/48kHz), MP3, M4a (up to 320kbit/s),
Playlists (M3U, PLS), DSD (NAC-N 272 only). Gapless playback supported on MP3, M4A,
AIFF, WAV, FLAC and ALAC.
Internet radio: AAC, Windows Media™ formatted content, MP3 streams, MMS, Ogg Vorbis,
Spotify® Connect: Ogg Vorbis (up to 320kps)
TIDAL: AAC (96 or 320kbps), FLAC (16bit 44.1kHz)
Bluetooth: SBC, AAC, aptX and aptX-LL.
Upgrade Interface mini-USB
Wi-Fi Compatibility 802.11b, 802.11g and 802.11n
Quiescent Consumption 10W 21W
Mains Supply 100V, 115V or 230V, 50/60Hz
Power Supply Options N/A 555PS, XPS, XP5 XS
Dimensions (H x W x D) 70 × 432 × 301mm 87 × 432 × 314mm
Weight 5.7kg 10.3kg
Finish Black Black
Note: This manual describes the operation of NAC-N preampliers running software release version 4.4.xx. Products
running earlier software will not operate fully in the manner described in this manual. The software running in a NAC-N
preamplier is displayed in the Factory Settings menu. All specications are subject to revision.
29
Page 32
11. Acknowledgements and Declarations
iPod is a trademark of Apple Inc., registered in the U.S. and other
countries.
This product incorporates Spotify software which is subject to 3rd party
licences found here: www.spotify.com/connect/third-party-licenses
The Bluetooth® word mark and logos are registered trademarks owned
by Bluetooth SIG, Inc. and any use of such marks by Naim Audio Ltd.
is under licence. Other trademarks and trade names are those of their
respective owners.
© 2012 CSR plc and its group companies.
The aptX® mark and the aptX logo are trade marks of CSR plc or one of
its group companies and may be registered in one or more jurisdictions.
UPnP™ is a trademark of the UPnP™ Forum.
CE Declaration of Conformity
Naim Audio declares that Naim Audio products are in conformance with:
Low Voltage Directive 2006/95/EC
Electromagnetic Compatibility Directive 2004/108/EC
Restriction of Hazardous Substances (RoHS2) Directive 2011/65/EU
Waste of Electrical and Electronic Equipment Directive 2012/19/EU
Energy related Product Directive 2009/125/EC
Naim Audio products comply with the following standards:
EN60065 - Audio, video and similar electronic apparatus - Safety requirements
EN55013 - Sound and television broadcast receivers and associated equipment - Radio disturbance characteristics
EN55020 - Sound and television broadcast receivers and associated equipment - Immunity characteristics
EN61000-3-2 - Mains harmonics current emissions
EN61000-3-3 - Mains icker emissions
Products that display the crossed-out wheeled bin logo cannot be disposed of as domestic waste. These products must be disposed
of at facilities capable of re-cycling them and appropriately handling any waste by-products. Contact your local authority for details
of the nearest such facility. Appropriate recycling and waste disposal helps conserve resources and protects the environment from
contamination.
Go Deeper
naimaudio.com
Naim Audio Ltd. Southampton Road, Salisbury, England SP1 2LN
Call. +44 (0) 1722 426600 Email. [email protected]
12-001-0321 Issue 3F
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