NAIM ALLAE - 2 User manual

WORLD CLASS HI FI
W O R L D C L A S S H I F I
OWNERS MANUAL
Speakers: SL2, allæ, Ariva, axent, axess, n-SATS, n-CENT, n-SUB.

IMPORTANT
In order to comply with current European safety regulations
it is essential that the Naim loudspeaker connectors supplied
with amplifiers and loudspeakers are used.
Do not under any circumstances allow anyone to modify your
Naim equipment without first checking with the factory, your
dealer, or your distributor. Unauthorised modifications will
invalidate your guarantee.
For your own safety do not under any circumstances open
Naim equipment without first disconnecting it from the mains.
Warning: an apparatus with CLASS I construction shall be
connected to a mains socket outlet with a protective earthing
connection.
Where the mains plug or an appliance coupler is used as the
disconnect device, the disconnect device shall remain readily
operable. To disconnect the equipment from the mains remove
the mains plug from the mains outlet.
The following label is attached to all mains powered
equipment:
NOTE
This equipment has been tested and found to comply with the
relevant EMC and Safety Standards, and, where applicable,
also complies with the limits for a class B digital device,
pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection
against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio
frequency and, if not installed and used in accordance
with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or
television reception, which can be determined by turning
off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the
receiver.
• Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
• Consult your Naim dealer or an experienced radio/TV
technician for help.
WARNING
THIS APPARATUS
MUST BE EARTHED
Contents
Page
Section
1
1
Equipment Installation
2
Connections
3
Mains Power Connection
2
4
General Installation
3
5
SL2
6
6
allæ
8
7
Ariva
10
8
axent and axess
12
9
n-SATS
14
10
n-CENT
15
11
n-SUB
19
12
Declaration of Conformity

1
2 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.
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 performs as it should.
Information given here is not intended to reduce this responsibility in any way.
Introduction
Naim Audio products are conceived with performance as the top priority.
Careful installation will help ensure that their full potential is achieved.
This manual covers the SL2, allæ, Ariva, axent, axess, n-SATS and n-CENT
loudspeakers and the n-SUB active sub-woofer. It begins with general
installation notes and statutory safety warnings for all Naim Audio
products. Product specific information begins in Section 5.
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
GREEN-AND-YELLOW
must be
connected to the terminal in the plug which is marked by the
letter
E
or by the safety earth symbol or coloured
GREEN
or
GREEN
and
YELLOW
.
The wire which is coloured
BLUE
must be connected to the
terminal in the plug which is marked with the letter
N
or
coloured
BLACK
.
The wire which is coloured
BROWN
must be connected to the
terminal in the plug which is marked with the letter
L
or coloured
RED
.
3.2 Non-rewirable Mains Plugs
If a non-rewirable plug is cut from a mains lead (for whatever
purpose) the plug
MUST
be disposed of in a way to render it
totally useless. Considerable shock hazard exists if the cut-off
plug is inserted into a mains outlet.
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 in turn lead to a mechanical
hum from power 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 transformer hum when siting
your equipment.
Transformer hum is not transmitted through the speakers and
has no effect on the performance of the system; however, a
separate mains circuit may reduce it. Such a circuit (ideally with
a 30 or 45 Amp rating) will also 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.

2
4 General Installation
Naim equipment is designed to offer the finest
performance possible avoiding compromise wherever
practical. This can lead to circumstances that may
be unfamiliar. The notes that follow contain advice
specifically related to Naim equipment as well as
more general warnings about the use of domestic
audio products. Please read them carefully.
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. Check the weight of
the equipment prior to lifting and if necessary use more than
one person so that it can be moved safely. Ensure that your
equipment rack or table can easily support the weight and is
stable.
Some speakers and stands are intended to be used with floor
spikes fitted. Care should be taken when siting and moving them
to avoid personal injury or damage to cables and surfaces. Floor
protectors are available from your local dealer or distributor to
protect non carpeted floors.
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 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:
[phone]
Email:
ser[email protected]
Please quote the product serial number (found on its rear panel)
in all correspondence.
Introduction

3
SL2
5 Introduction and Positioning
Naim loudspeakers are precision acoustic instruments that will only achieve optimal
performance if installed and set up carefully. Please read these instructions before
unpacking, installing and using the loudspeakers. Please also retain the packaging
for future use.
The performance of any loudspeaker will be influenced by the room and position in which it is
located. Even small changes of loudspeaker position can significantly influence the sound. Choose
a site where the loudspeakers can be located between 1.2m and 4m apart (4ft and 13ft), clear of
room corners, and where each loudspeaker is between 10cm and 45cm (4” and 18”) away from a
solid rear wall. The distance between the speakers and the rear wall is the aspect of positioning most
likely to require adjustment as you become familiar with the characteristics of the loudspeakers in
your room.
The
SL2
is not magnetically shielded and should be kept well away from CRT displays. Should a
display suffer picture distortion caused by the proximity of an
SL2
contact your dealer or installer for
advice.
Loudspeakers, like many hi-fi components, will take time to stabilise and “run-in” and can be
expected to improve with use even over a period of weeks. For this reason it is prudent not to finalise
SL2
positioning until the system has been operating for at least one week.
5.1 Unpacking SL2
To minimise the risk of accident and damage,
SL2
components
should be removed from the packaging one speaker at a time
and in the following order. Components referred to in the
following paragraphs can be identified through Diagram 5.3.
Remove the central packing piece and
Tweeter Suspension
Assembly.
Separate the two and place the
Tweeter Suspension
Assembly
to one side.
Remove the card shield containing the
Grille.
Place the
Grille
to
one side. Also remove the card packing piece that protects the
curved top of the
Upper Cabinet.
Carefully lift the
Upper Cabinet
out of the carton and place it to
one side. Take care not to damage either the drive unit or the
aluminium plate on the underside of the cabinet.
Now lift the
Lower Cabinet,
together with its foam end-caps
out of the carton. Stand it on the floor,
plinth
lowermost, and
remove the top foam end-cap. Turn the cabinet upside down
being careful not to damage the aluminium plate. Finally remove
the sprung foam end-cap by pulling its sides outward and lifting
it over the plinth.
5.2 Assembling and Installing SL2
Stage 1
With each
Lower Cabinet
upside down the floor spikes can be
fitted. Screw a spike and lock-nut into each threaded hole in the
plinth. If the loudspeakers are to stand on a thick carpet, leave a
generous length of spike protruding past the lock-nut. If they are
to stand on thinly carpeted or plain floor, the spike length should
be reduced. In either case, best results will be achieved when
the spike length is set to the minimum required for the spike
lock-nuts to sit just above the carpet pile.
Stage 2
Take each Tweeter Suspension Assembly in turn and offer it up to
the
Tweeter Mounting Points
on the rear of each Plinth. Attach
it using the bolts and allen key supplied. The Tweeter Suspension
Assembly should be fixed as close to vertical as possible. Use
the back of the Lower Cabinet as a guide.
Now move each
Lower Cabinet
with the
Tweeter Suspension
Assembly
attached into the appropriate position. Take care not
to place them so close to the wall that the rear spikes foul any
carpet gripper that may be fitted. Also leave some space for final
adjustment of the
Tweeter Suspension Assembly
and for the
connecting cables.
Adjust the spikes so that the cabinets are upright (a small
spirit level will help) and do not rock. Tighten the lock-nuts with
an appropriate spanner. Check again, once the lock-nuts are
tightened, that the cabinets do not rock on the spikes.
Note:
With thick carpet and underlay it can be difficult to ensure
that the spikes are resting on the floor. Small slits cut into the carpet
once the loudspeaker position is finalised will help.
Note:
If you intend to install the SL2 on a non-carpeted floor the
spikes should be used in conjunction with Naim Floor Protectors
(see Diagram 5.4) and set up so that just the tip extends beyond
the lock nut. Your retailer or distributor will be able to supply Floor
Protectors.
Stage 3
The pack containing this manual also contains
Cabinet Interface
Pins
and
Cabinet Spacers.
Fit a
Pin
and a
Spacer
to the three
holes in the aluminium top surface of each
Lower Cabinet.
There are two holes at the front and one at the back. Spare
Pins
and
Spacers
are included in the pack. The
Pins
should be a
loose fit in the holes. See Diagram 5.5
Now take each
Upper Cabinet
in turn and carefully lower it
onto the appropriate
Lower Cabinet
locating the
Pins
in the
corresponding holes on its underside. At the same time as
each
Upper Cabinet
is lowered onto each
Lower Cabinet,
the
tweeters must be inserted through the apertures of the
Upper
Cabinets.
The loose fit of the
Pins
allows some adjustment of
the alignment of the two cabinets. See Diagram 5.6

4
SL2
5.5 SL2 Assembly
Tweeter Suspension
Assembly
Pin
Spacer
Spacer
Spacer
Upper Cabinet
Lower Cabinet
Grille
Plinth
Tweeter Suspension
Assembly
Passive Crossover
Unit
Tweeter Mounting
Points
5.3 SL2 Components
Note:
The metal bar across
the rear underside of the
SL2 that attaches the Lower
Cabinet to the Plinth is
intended to be slightly loose.
Naim Floor Protectors can be
used to if the SL2 is to be
installed on a non-carpeted floor.
5.4 Floor Protectors

5
touch the
Lower Cabinet.
The card spacing jig packed with this
manual can be used to support the bottom edge of the
Grille
as
it is fitted. Seen from the side, the
Grille
should continue the
curved form of the front of the
Lower Cabinet.
5.7 Connection
If the loudspeakers are to be used with Naim amplification, Naim
loudspeaker cable will produce the best results and is necessary
with some amplifiers. Cable lengths to both loudspeakers should
be equal and be between 3.5 metres and 20 metres (11.5ft and
66ft). Your local retailer will be able to make up cables of the
appropriate length.
If the
SL2
is to be used in an active system, speaker cables with
their custom Naim plugs should be connected to the appropriate
input sockets on the back of the
Tweeter Suspension Arm
(HF) and
Upper Cabinet
(LF). Ensure that each positive plug
- identified by a rib on the side of the cable and a tag marked
“pos” on the side of the connector body - is inserted to the red
input sockets.
If the
SL2
is to be used in a passive system, the
Passive
Crossover Units
must be mounted to the back of each
Lower
Cabinet.
Screws and decoupling grommets are supplied in the
pack that contains the passive crossovers. Tighten the screws
so that the screw heads just touch the decoupling grommets
without compressing them.
The output cables from the
Passive Crossover Units
must be
connected to the input sockets on the back of the speaker,
the longer cable to the sockets on the back of each
Tweeter
Suspension Assembly
and the shorter cable to the sockets
on each
Upper Cabinet.
The cables should be dressed such
that they do not touch any other
SL2
component and such
that the output plugs align naturally with input sockets. Stress
in the cables will interfere with the decoupling between
SL2
components.
Finally the amplifier output speaker cables, with their custom
Naim plugs, should be connected to the input sockets on the
back of the
Passive Crossover Units.
Ensure that each positive
plug - identified by a rib on the side of the cable and a tag
marked “pos” on the side of the connector body - is inserted to
the red input sockets.
SL2
It is vitally important for correct operation of SL2 that the
Upper
Cabinets
are located properly on the
Lower Cabinets,
that the
Pins
are in place and that the two cabinets only touch via the
spacers.
The alignment of the Tweeter within the Upper Cabinets can
be adjusted via either the two bolts connecting the Tweeter
Suspension Assembly to the Plinth or the four screws that attach
the
Tweeter Adjustment Panel
around the front face of the
Tweeter. If the four adjustment panel bolts are loosened they
should be re-tightened as securely as possible. As well as being
adjusted to sit centrally when viewed from the front, and flush
with the front panel, the Tweeter must oscillate freely without
touching any part of either cabinet.
Finally fit a
Grille
to each
SL2
by aligning it with the top of the
Lower Cabinet
before pushing it gently against the fixing tape
on the
Upper Cabinet.
The lower edge of the
Grille
should not
Upper
Cabinet
Tweeter
Adjustment Panel
SL2 Specification
Frequency Response:
30Hz - 20kHz
Sensitivity:
88dB/1W/1m
Power Handling:
150 Watts (music programme)
Impedance:
6Ω (nominal)
Dimensions (H x W x D):
1027 x 282 x 310mm
Weight (unpacked):
25.4kg
Standard Finishes:
Cherry, Maple, Black
5.6 SL2 Assembly

6
allæ
6 Introduction and Positioning
Naim loudspeakers are precision acoustic instruments that will only achieve optimal
performance if installed and set up carefully. Please read these instructions before
installing and using the loudspeakers. Please also retain the packaging for future
use.
The performance of any loudspeaker will be influenced by the room and position in which it is
located. Even small changes of loudspeaker position can significantly influence the sound. Choose
a site where the loudspeakers can be located between 1.2m and 4m apart (4ft and 13ft), clear of
room corners, and where each loudspeaker is between 10cm and 45cm (4” and 18”) away from a
solid rear wall. The distance between the speakers and the rear wall is the aspect of positioning most
likely to require adjustment as you become familiar with the characteristics of the loudspeakers in
your room.
The
allæ
is not magnetically shielded and should be kept well away from CRT displays. Should a
display suffer picture distortion caused by the proximity of
allæ
contact your dealer or installer for
advice.
Loudspeakers, like many hi-fi components, will take time to stabilise and “run-in” and can be
expected to improve with use even over a period of weeks. For this reason it is prudent not to finalise
allæ
positioning until the system has been operating for at least one week.
6.1 Installation
Stage 1
Each
allæ
loudspeaker comprises two separate cabinet
components, the
Upper Cabinet,
containing the bass/mid
driver, and the
Lower Cabinet,
containing the tweeter. These
Components can be identified through diagram 6.3.
To begin installation, first fit the floor spikes and lock-nuts to the
base of each
Lower Cabinet plinth.
The cabinets can safely be
turned upside-down to aid fitting the spikes. If the loudspeakers
are to stand on a thick carpet, leave a generous length of
spike protruding past the lock-nut. If they are to stand on thinly
carpeted or plain floor, the spike length should be reduced. In
either case, best results will be achieved when the spike length
is set to the minimum required for the spike lock-nuts to sit just
above the carpet pile or floor surface.
Note:
The metal bar across the rear underside of the allæ that
attaches the Lower Cabinet to the Plinth is intended to be slightly
loose.
With the floor spikes fitted, each
Lower Cabinet
can be
placed in the appropriate position. Take care not to place the
loudspeakers so close to the wall that the rear spikes foul any
carpet gripper that may be fitted. With the cabinets in position,
adjust the spikes so that the cabinets are upright (a small
spirit level will help) and do not rock. Tighten the lock-nuts with
an appropriate spanner. Check again, once the lock-nuts are
tightened, that the cabinets do not rock on the spikes.
Note:
With thick carpet and underlay it can be difficult to ensure
that the spikes are resting on the floor. Small slits cut into the carpet
once the loudspeaker position is finalised will help.
Note:
If you intend to install the allæ on a non-carpeted floor the
spikes should be used in conjunction with Naim Floor Protectors
(see Diagram 6.4) and set up so that just the tip extends beyond
the lock nut. Your retailer or distributor will be able to supply Floor
Protectors.
Stage 2
The pack containing this manual also contains six small
Precision Interface Pins (PIPS).
Fit three
PIPS
in the three
holes in the top surface of each
Lower Cabinet.
There are two
holes at the front and one at the back. The
PIPS
should be a
loose fit in the holes.
Take each
Upper Cabinet
in turn and carefully lower it onto
the appropriate
Lower Cabinet
locating the
PIPS
in the
corresponding holes on its underside. The loose fit of the
PIPS
allows some adjustment of the alignment of the two cabinets.
Stage 3
Remove the protective tape from the high frequency drivers
mounted in the front of each
Lower Cabinet.
Fit the grilles to
the front of each
Upper Cabinet
by locating the grille studs in
the corresponding holes in the cabinet.

7
6.3 allæ Components
allæ
Upper Cabinet
Lower Cabinet
PIP
allæ Specification
Frequency Response:
30Hz - 20kHz
Sensitivity:
88dB/1W/1m
Power Handling:
150 Watts (music programme)
Impedance:
6Ω (nominal)
Dimensions (H x W x D):
940 x 240 x 280mm
Weight (unpacked):
17.6kg
Finishes:
Cherry, Maple, Black
6.2 Connection
If the loudspeakers are to be used with Naim amplification, Naim
loudspeaker cable will produce the best results and is necessary
with some amplifiers. Cable lengths to both loudspeakers should
be equal and be between 3.5 metres and 20 metres (11.5ft and
66ft). Your local retailer will be able to make up cables of the
appropriate length.
Connect the cables from the passive crossover units mounted
on the back of the
Lower Cabinets
to the input sockets on each
cabinet. Each longer cable should be connected to the sockets
on the back of the
Upper Cabinets
and each shorter cable to
the sockets on the back of the
Lower Cabinet.
Finally connect
the amplifier output speaker cables with their custom Naim plugs
to the input sockets on the back of the passive crossover units.
Ensure that each positive plug - identified by a rib on the side of
the cable and a tag marked “pos” on the side of the connector
body - is inserted to the red input sockets.
If the
allæ
is to be used in an active system the passive
crossover units should be removed and the
Upper Cabinet
(LF) and
Lower Cabinet
(HF) input sockets connected via
loudspeaker cables with custom Naim plugs directly to the
appropriate power amplifier.
Naim Floor Protectors can be
used to if the allæ is to be
installed on a non-carpeted floor.
6.4 Floor Protectors

8
Ariva
7.1 Installation
Stage 1
Each
Ariva
loudspeaker comprises a separate
plinth
and
cabinet
. These components can be identified from the diagrams
opposite.
To begin installation, first fit four
floor spikes
and
lock-nuts
to
the underside of each
plinth
. Leave just enough spike length
extending below the lock nut to account for the thickness of
carpet and underlay. Best results will be achieved when the
spike length is set to the minimum required for the lock-nuts to
sit just above the carpet pile. Do not fully tighten the lock-nuts
at this stage.
Note:
If you intend to install the Ariva on a non-carpeted floor the
spikes should be used in conjunction with Naim Floor Protectors
(see Diagram 7.3) and set up so that just the tip extends beyond
the lock nut. Your retailer or distributor will be able to supply Floor
Protectors.
With floor spikes fitted, but not tightened, place each plinth on
the floor in the intended loudspeaker position. Use the supplied
allen key, via the access hole in the top surface of the plinth
(see Diagram 7.3), to adjust each spike so that the plinth is
both level and does not rock. Use a spirit level to confirm the
plinth is level and tighten each lock-nut using a 10mm spanner.
Note:
With thick carpet and underlay it can be difficult to ensure
that the spikes are resting on the floor. Small slits cut into the
carpet once the loudspeaker position is finalised will help.
Stage 2
Each plinth is fitted with three upward facing decoupling domes.
These domes locate in to the corresponding spherical recesses
in the underside of the Ariva cabinets. To complete the Ariva
installation carefully line-up and lower each cabinet on to its
plinth so that it locates securely (see Diagram 7.4).
7.2 Connection
If the loudspeakers are to be used with Naim amplification,
Naim loudspeaker cable will produce the best results and
is necessary with some amplifiers. Cable lengths to both
loudspeakers should be equal and be between 3.5 metres and
20 metres (11.5ft and 66ft). Your local retailer will be able to
make up cables of the appropriate length.
Connect the loudspeaker cables with their custom Naim plugs
to the input sockets located on the rear of each Ariva cabinet.
Ensure that each positive plug - identified by a rib on the side of
the cable and a tag marked “pos” on the side of the connector
body - is inserted to the red input sockets.
7 Introduction and Positioning
Naim loudspeakers are precision acoustic instruments that will only achieve optimal
performance if installed and set up carefully. Please read these instructions before
installing and using the loudspeakers. Please also retain the packaging for future
use.
The performance of any loudspeaker will be influenced by the room and position in which it is
located. Even small changes of loudspeaker position can significantly influence the sound. Choose
a site where the loudspeakers can be located between 1.2m and 4m apart (4ft and 13ft), clear of
room corners, and where each loudspeaker is between 10cm and 60cm (4” and 24”) away from a
solid back wall. It is not necessary to angle the loudspeakers inwards towards the listening position.
The distance from the back wall is the aspect of positioning most likely to require adjustment as you
become familiar with the characteristics of the loudspeakers in your room. Further from the wall the
speakers will generate less low frequency energy.
The
Ariva
is not magnetically shielded and should be kept well away from CRT displays. Should a
display suffer picture distortion caused by the proximity of
Ariva
contact your dealer or installer for
advice.
Loudspeakers, like many hi-fi components, will take time to stabilise and “run-in” and can be
expected to improve with use even over a period of weeks. For this reason it is prudent not to finalise
Ariva
positioning until they have been operating for at least one week.

9
Ariva
Ariva Specification
Frequency Response:
35Hz - 20kHz
Sensitivity:
90dB/1W/1m
Power Handling:
150 Watts (music programme)
Impedance:
4Ω (nominal)
Dimensions (H x W x D):
880 x 230 x 310mm
Weight (unpacked):
18.6kg
Finishes:
Cherry, Maple, Black
7.3 Plinth Installation
location dome
location dome
floor spike
floor spike
adjustment access
7.4 Cabinet to Plinth Assembly
Lower the cabinet on to the
plinth.
Plinth and cabinet to line-up.
tilt buffer
Naim Floor Protectors can be
used to if the Ariva is to be
installed on a non-carpeted floor.
Use the supplied allen key via the
access hole in the top surface of
the plinth to adjust the spikes.

10
8.1 Connection
If the
axent
or
axess
are to be used with Naim amplification,
Naim loudspeaker cable will produce the best results and is
necessary with some amplifiers. Cable length should be between
3.5 metres and 20 metres (11.5ft and 66ft). Your local retailer
will be able to make up cables of the appropriate length.
Connect the loudspeaker cables with their custom Naim plugs to
the input sockets located on the rear of the enclosure. Ensure
that the positive plug - identified by a rib on the side of the
cable and a tag marked “pos” on the side of the connector body
- is inserted to the red input socket.
8.2 Tweeter Adjustment
The
tweeter
is mounted on an adjustable suspension plate. It
is important both that the tweeter “bounces” freely on the plate
and that it is held in line with the front panel of the enclosure.
If the tweeter does not bounce or it is not held in the correct
position (i.e. the plate appears bent), the plate can be adjusted.
Carefully remove, one at a time, the appropriate fixing screws
and gently bend the appropriate arm or arms of the plate to
correct the bend. Replace the screws, tightened as lightly as
possible to ensure security, and re-test the “bounce”. Repeat
the exercise if necessary. Diagram 8.3 opposite illustrates the
tweeter suspension plate correctly and incorrectly adjusted.
axent, axess
8 Introduction and Installation
Naim loudspeakers are precision acoustic instruments that will only achieve optimal
performance if installed and set up carefully. Please read these instructions before
installing and using the loudspeakers. Please also retain the packaging for future
use.
The performance of any loudspeaker will be influenced by the room in which it is located and
even small changes of loudspeaker position can significantly influence the sound. Alignment with
the listening position and proximity to room boundaries will in particular influence the subjective
performance. The position of a centre channel loudspeaker tends to be influenced by the type
and location of the associated video screen. However, the influence of the room boundaries and
alignment to the listening position should still be taken into account.
The
axent
and
axess
are designed to reproduce full bandwidth, full power signals and are intended
to be positioned centrally just below the screen. If the location of the loudspeaker results in too
much bass some adjustment of low frequency equalisation via the AV processor may be necessary.
Best results from
axent
and
axess
are likely to be gained if they are directly coupled to the floor via
a rigid, spiked stand. Both speakers are equipped with spike location pads on the underside to help
enable such mounting. If however the screen stand is also to carry the speaker it is advisable to at
least decouple the screen, perhaps with compliant pads, so that vibration from the speaker does not
disturb the picture.
The
axent
and
axess
are magnetically shielded. However, the extreme sensitivity of some CRT tubes
to low levels of magnetic flux may mean that, in rare cases, the shielding may not be sufficient.
Should your screen suffer picture distortion caused by the proximity of a centre speaker contact your
dealer or installer for advice.
Loudspeakers, like many hi-fi components, will take time to stabilise and “run-in” and can be
expected to improve with use even over a period of weeks. For this reason it is prudent not to finalise
axent
and
axess
positioning until they have been operating for at least one week.

11
8.3 Tweeter Adjustment
Incorrect Adjustment
Incorrect Adjustment
Correct Adjustment
Correct Adjustment
axent, axess
axent Specification
Frequency Response:
40Hz - 20kHz
Sensitivity:
89dB/1W/1m
Power Handling:
150 Watts (music programme)
Impedance:
6Ω (nominal)
Dimensions (H x W x D):
175 x 940 x 440mm
Weight (unpacked):
27.4kg
Finishes:
Cherry, Maple, Black
axess Specification
Frequency Response:
45Hz - 20kHz
Sensitivity:
89dB/1W/1m
Power Handling:
150 Watts (music programme)
Impedance:
6Ω (nominal)
Dimensions (H x W x D):
175 x 536 x 451mm
Weight (unpacked):
16.6kg
Finishes:
Cherry, Maple, Black

12
9.1 n-STAND Installation
The
n-STAND
is a dedicated floor-stand for
n-SATS
. It must not
be used to support any other loudspeaker.
To begin
n-STAND
installation, first attach each base to an
upright with the four small cap-head screws using the allen key
supplied (see Diagram 9.3). Once the stand uprights and bases
are securely attached, fit four
floor spikes
and
lock-nuts
(see
Diagram 9.3) to the underside of each
base
. Leave just enough
spike length extending below the lock nut to account for the
thickness of carpet and underlay. Best results will be achieved
when the spike length is set to the minimum required for the
lock-nuts to sit just above the carpet pile. Do not fully tighten
the lock-nuts at this stage.
Note:
If you intend to install the n-STAND on a non-carpeted floor
the spikes should be used in conjunction with Naim Floor Protectors
(see Diagram 9.3) and set up so that just the tip extends beyond
the lock nut. Your retailer or distributor will be able to supply Floor
Protectors.
With floor spikes fitted, but not tightened, place each stand on
the floor in the intended loudspeaker position. Use the supplied
allen key via the access holes in the base to adjust each spike
so that the plinth is both level and does not rock. Use a spirit
level to confirm the plinth is level and tighten each lock-nut
using a 10mm spanner.
Note:
With thick carpet and underlay it can be difficult to ensure
that the spikes are resting on the floor. Small slits cut into the
carpet once the loudspeaker position is finalised will help.
n-SATS
9 Introduction and Installation
Naim loudspeakers are precision acoustic instruments that will only achieve optimal
performance if installed and set up carefully. Please read these instructions before
installing and using the loudspeakers. Please also retain the packaging for future
use.
n-SATS
are primarily intended to be used in home theatre and multi-channel audio surround channel
applications located behind or adjacent to the listening position.
n-SATS
can also be used as main
speakers in small-scale conventional stereo audio systems. In either application best results will be
achieved if
n-STAND
floor-stands are used.
Like any loudspeakers the performance of
n-SATS
will be influenced by the room and position in
which they are located. Even small changes of position can significantly influence the sound. Choose
a site where they can be located between 1.2m and 4m apart (4ft and 13ft), clear of room corners,
and where each loudspeaker is between 5cm and 60cm (2” and 24”) away from a solid back wall. It
is not necessary to angle the loudspeakers inwards towards the listening position.
The distance from the back wall is the aspect of positioning most likely to require adjustment as
you become familiar with the characteristics of
n-SATS
in your room. The use of floor-stands rather
than wall brackets provides more opportunity for positioning adjustment. Further from the wall the
speakers will generate less low frequency energy.
n-SATS
are magnetically shielded. However, the extreme sensitivity of some CRT displays to low
levels of magnetic flux may mean that, in rare cases when
n-SATS
are located relatively close to a
display, the shielding may not be sufficient. Should a display suffer picture distortion caused by the
proximity of
n-SATS
contact your dealer or installer for advice.
Loudspeakers, like many hi-fi components, will take time to stabilise and “run-in” and can be
expected to improve with use even over a period of weeks. For this reason it is prudent not to finalise
positioning until they have been operating for at least one week.
Mounting lugs must be attached to the rear of
n-SATS
before
they can be mounted on
n-STANDS
. First remove the two button-
head screws on the rear of each
n-SATS
using the supplied 3mm
allen key. Replace the buttton-heads with the supplied mounting
lugs and cap-heads. Tighten the cap-head screws with the allen
key (see Diagram 9.4).
With the mounting lugs fitted,
n-SATS
can be lowered onto
n-STANDS
so that the lugs engage with the stand cradle. A
central grub screw in the stands can be adjusted to ensure that
the
n-SATS
sits vertically (see Diagram 9.4).
Note:
An n-SERIES wall bracket is available that enables n-SATS to
be wall mounted. Contact your dealer or local distributor for more
information.
9.2 Connection
If
n-SATS
are to be used with Naim amplification, Naim
loudspeaker cable will produce the best results and is necessary
with some amplifiers. Cable length should be between 3.5
metres and 20 metres (11.5ft and 66ft). Your local retailer will
be able to make up cables of the appropriate length.
Connect the loudspeaker cables with their custom Naim plugs to
the input sockets located on the rear of the enclosures. Ensure
that the positive plug - identified by a rib on the side of the cable
and a tag marked “pos” on the side of the connector body - is
inserted to the red input socket.
The
n-STAND
incorporates optional cable dressing pins that
enable the loudspeaker cable to be routed down the stand
upright and dressed in place. This is illustrated in Diagram 9.4

13
n-SATS
9.3 n-STAND Construction
Naim Floor Protectors can be
used to if the n-STAND is to be
installed on a non-carpeted floor.
Use the supplied allen key to
adjust each floor spike from the
top. Tighten the lock-nuts once
the stand is level.
floor spike
floor spike
adjustment
adjustment
floor spike
floor spike
floor
protector
protector
n-SATS Specification
Frequency Response:
50Hz - 20kHz
Sensitivity:
87dB/1W/1m
Power Handling:
100 Watts (music programme)
Impedance:
6Ω (nominal)
Dimensions (H x W x D):
285 x 200 x 208mm
Weight (unpacked):
5.5kg
Finishes:
Cherry, Maple, Black Lacquer
Attach the base to the upright
Attach the base to the upright
using the four small cap-head
using the four small cap-head
screws and the supplied allen
screws and the supplied allen
key.
9.4 n-STAND Installation
Remove the two button-head
Remove the two button-head
screws and replace them with
screws and replace them with
cap-head screws and mounting
cap-head screws and mounting
lugs.
Lower the n-SATS speaker on
Lower the n-SATS speaker on
to the n-STAND cradle and
to the n-STAND cradle and
adjust to sit vertically with the
adjust to sit vertically with the
central grub screw.
Route the speaker cable
up the stand upright and
dress with the dressing
pins.
Note:
Dressing the cables
too tightly in the stand
upright may degrade the
n-SATS performance.
Leave some slack -
especially between the
speaker terminals and the
first dressing pin. A small
improvement in n-SATS
subjective performance
may be perceived by
leaving the loudspeaker
cables undressed.

14
n-CENT
10.1 Installation
The adhesive rubber feet supplied with n-CENT will reduce
vibration transferred to other equipment. Use the template
enclosed with this manual to fit the feet in position.
An n-SERIES wall bracket is available that enables n-CENT to be
wall mounted. Contact your dealer or local distributor for more
information.
Mounting lugs must be attached to the rear of the n-CENT
before it can be attached to the wall bracket. First remove the
two button-head screws on the rear of the n-CENT using the
supplied 3mm allen key. Replace the buttton-heads with the
supplied mounting lugs and cap-heads. Tighten the cap-head
screws with the allen key.
With the mounting lugs fitted, the n-CENT can be lowered onto
the wall bracket so that the lugs engage with the cradle. A
central grub screw in the bracket can be adjusted to ensure that
the n-CENT sits vertically.
10 Introduction and Installation
Naim loudspeakers are precision acoustic instruments that will only achieve optimal
performance if installed and set up carefully. Please read these instructions before
installing and using the loudspeakers. Please also retain the packaging for future
use.
The performance of any loudspeaker will be influenced by the room in which it is located and
even small changes of loudspeaker position can significantly influence the sound. Alignment with
the listening position and proximity to room boundaries will in particular influence the subjective
performance. The position of a centre channel loudspeaker tends to be influenced by the type
and location of the associated video screen. However, the influence of the room boundaries and
alignment to the listening position should still be taken into account.
The
n-CENT
is designed to reproduce full bandwidth, full power signals and is intended to be
positioned centrally just above or below the screen. If the location of the loudspeaker results in too
much bass some adjustment of low frequency equalisation via the AV processor may be necessary.
Best results from the
n-CENT
are likely to be gained if it is directly coupled to the floor via a rigid,
spiked stand. If the screen stand is however also to carry the
n-CENT
it is advisable to decouple it
from the screen with the supplied adhesive rubber feet so that vibration from the speaker does not
disturb the picture.
The
n-CENT
is magnetically shielded. However, the extreme sensitivity of some CRT tubes to low
levels of magnetic flux may mean that, in rare cases, the shielding may not be sufficient. Should your
screen suffer picture distortion caused by the proximity of a centre speaker contact your dealer or
installer for advice.
Loudspeakers, like many hi-fi components, will take time to stabilise and “run-in” and can be
expected to improve with use even over a period of weeks. For this reason it is prudent not to finalise
positioning until it has been operating for at least one week.
n-CENT Specification
Frequency Response:
50Hz - 20kHz
Sensitivity:
87dB/1W/1m
Power Handling:
120 Watts (music programme)
Impedance:
6Ω (nominal)
Dimensions (H x W x D):
160 x 430 x 300mm
Weight (unpacked):
10.0kg
Finishes:
Cherry, Maple, Black Lacquer
10.2 Connection
If the
n-CENT
is to be used with Naim amplification, Naim
loudspeaker cable will produce the best results and is necessary
with some amplifiers. Cable length should be between 3.5
metres and 20 metres (11.5ft and 66ft). Your local retailer will
be able to make up cables of the appropriate length.
Connect the loudspeaker cables with their custom Naim plugs to
the input sockets located on the rear of the enclosure. Ensure
that the positive plug - identified by a rib on the side of the cable
and a tag marked “pos” on the side of the connector body - is
inserted to the red input socket.

15
n-SUB
11 Introduction
Naim loudspeakers are precision acoustic instruments that will only achieve optimal
performance if installed and set up carefully. Please read these instructions before
installing and using the n-SUB. Please also retain the packaging. The n-SUB is very
heavy and care should be taken when lifting or moving it. Do not connect the n-SUB
to the mains wall socket until all other connections are made. Take great care when
moving and handling the n-SUB that cables are not damaged by its floor spikes.
The
n-SUB
is an active sub-woofer primarily intended to be used in conjunction with
n-SATS
and the
n-CENT
in home theatre and multi-channel audio applications. The
n-SUB
can also be used however
with
n-SATS
in a stereo satellite/sub-woofer (2.1) loudspeaker system.
A variety of
n-SUB
set up parameters can be defined and stored as presets. These enable
n-SUB
performance to be adjusted for different programme material types, personal preferences and
listening levels etc (i.e Stereo or AV setups). Up to six presets can be stored. Preset selection or real-
time adjustment of
n-SUB
can be carried out from either its control panel or the remote handset.
Loudspeakers, like many hi-fi components, will take time to stabilise and “run-in” and can be
expected to improve with use even over a period of weeks. For this reason it is prudent not to finalise
positioning until they have been operating for at least one week.
11.1 n-SUB Installation
11.1.1 n-SUB Positioning
In principle there is significant freedom of position of a sub-
woofer in a listening room. In practice, however, the performance
of the
n-SUB
will be fundamentally influenced by the room and
position in which it is located. Small changes of position, or the
resonant characteristics of items in the immediate vicinity of the
n-SUB,
can significantly influence its performance
.
Initially choose a site for the
n-SUB
along one of the walls of the
listening room well away, but not equi-distant, from the corners.
It is not necessary that the
n-SUB
be positioned along the same
wall as the main loudspeakers. Locate the
n-SUB
such that its
control panel is facing out from the wall. Leave a gap of between
100mm (4”) and 150mm (6”) between the rear panel (driver
panel) and the wall. Chose a solid, rather than a partition, wall
and keep the
n-SUB
clear of any significant resonant objects -
large furniture panels, heating radiators, etc.
The
n-SUB
is not magnetically shielded and should be kept
a minimum of 2m away from CRT displays (plasma, LCD or
DLP displays are not affected). Should a display suffer picture
distortion caused by the proximity of the
n-SUB
contact your
dealer or installer for advice.
The
n-SUB
amplifier is cooled by air flow entering through
perforations in its underside and exiting through a vent above the
display window. This air flow must not be restricted.
A cable clamp is supplied in the pack containing this manual
intended to hold the mains cable in position and to help prevent
it from being damaged by floor spikes. It can be fitted as
appropriate in any of the 3 positions shown in Diagram 11.9
depending on the positioning of the
n-SUB
relative to the wall
and mains socket.
11.1.2 n-SUB Floor Spikes
With the initial position decided begin
n-SUB
installation by
fitting the four
floor spikes
and
lock-nuts
to the underside of
the enclosure. Adjust the spike length to hold the
n-SUB
at least
20mm above the floor covering
Note:
If you intend to install the n-SUB on a non-carpeted floor the
spikes should be used in conjunction with Naim Floor Protectors
(see Diagram 11.8). Your retailer or distributor will be able to supply
Floor Protectors.
With the floor spikes fitted, but not tightened, place the
n-SUB
on the floor in the intended position. Adjust the spikes so that
the
n-SUB
does not rock and is level. Tighten each lock-nut
using a 10mm spanner.
Note:
With thick carpet and underlay it can be difficult to ensure
that the spikes are resting on the floor. Small slits cut into the carpet
once the loudspeaker position is finalised will help.
11.2 n-SUB Connections
The
n-SUB
carries a comprehensive set of signal and control
connections appropriate for integration with a variety of system
types and installations. The connection sockets (and mains
power input socket) can all be found on the underside of the
enclosure and are illustrated in Diagram 11.6. The
n-SUB
can be
turned up-side-down to aid access to the sockets.
DO NOT CONNECT n-SUB TO THE MAINS WALL SOCKET UNTIL
ALL CONNECTIONS ARE MADE AND IT IS RETURNED TO AN
UPRIGHT POSITION. TAKE GREAT CARE WHEN RETURNING
THE N-SUB TO THE UPRIGHT POSITION THAT CABLES ARE NOT
DAMAGED BY THE FLOOR SPIKES.
11.2.1 n-SUB Inputs
The
n-SUB
provides one mono and one stereo line level input on
RCA Phono sockets along with one stereo set of “speaker-level”
4mm input sockets.
The mono line level input should be used for AV systems where
an AV processor provides a mono sub-woofer (LFE) output.
The stereo line level input should be used when only an auxiliary
stereo output is available from, for example, a preamplifier. The
stereo channels are combined to mono within the
n-SUB
.
Note:
Do not use an amplifier “tape output” to connect to Input
2. The volume level from tape outputs does not vary with volume
control position.

16
n-SUB
Note:
A special 4-pin DIN to stereo RCA Phono Plug lead is required
for connection to Naim preamplifiers (usually via the preamplifier
power supply). It incorporates resistors in the signal path to
protect the preamplifier from the high capacitance inherent in the
necessarily long lead.
Connect to the speaker level inputs
using Naim speaker plugs
via cables connected to the main (front left and right) speaker
terminals. The stereo channels are combined to mono within
the
n-SUB.
Speaker terminal “piggy-back” connectors and
appropriate made-up cables will be available from your local
Naim dealer or distributor.
USE OF THE SPEAKER LEVEL INPUTS WITH A NAIM NAP 500,
OR ANY OTHER “BRIDGED” POWER AMPLIFIER, REQUIRES
SPECIAL CONNECTION CABLES. CONTACT YOUR DEALER OR
LOCAL DISTRIBUTOR FOR MORE INFORMATION.
Note:
The decision to use either the line level or speaker level
inputs when the n-SUB is not connected via an AV decoder can be
made on the grounds of sound quality. It is impossible to predict
which option will sound best in a particular system and installation,
however the speaker level option, by virtue of higher signal levels
being more robust over long lead lengths, is potentially superior.
Input sockets can be selected either directly from the
n-SUB
control panel or included in a setup preset. See Section 11.3.
An RC5 control input is also provided on the
n-SUB
connection
panel. This input can be used for wired remote control if the
n-SUB
is to be used out of line-of-sight in an installed audio
system or if the n-SUB is one of a daisy-chained group.
11.2.2 n-SUB Outputs
The
n-SUB
is fitted with a mono signal output and an RC5
control output, both on RCA Phono sockets. These output
sockets are intended to enable “daisy-chaining” of one or more
n-SUBs
in systems where multiple sub-woofers are required.
If these sockets are used take care to ensure that they are
connected correctly.
11.2.3 Earth Terminal
An external earth (ground) terminal and earth selection switch
are fitted to the underside of the
n-SUB
. Use of the earth
terminal may help alleviate audible hum from earth loops by
disconnecting the signal and mains earths. If hum is a problem,
connect the earth terminal with a single cable to the preamplifier
earth terminal and move the switch to the “External” position.
Note:
Do not switch the earth selection to External without an
external earth connected.
11.3 n-SUB Configuration and Operation
With all input and output connections made and the
n-SUB
positioned appropriately it is ready for configuration and
operation.
Note:
The n-SUB may be configured and operated from either its
control panel or from the remote handset, however the handset
provides enhanced functionality and direct access to gain and
display control.
To select and adjust a parameter use the handset
mode
5
or
mode
6
keys (control panel:
mode
) to select. Once a parameter
is selected use the handset
up
or
down
keys (control panel
:
up
or
down
buttons) to adjust.
The handset and control panel
mute
function mutes and restores
the
n-SUB
output.
The handset
gain
5
and
gain
6
keys provide direct control of
n-SUB
volume level. The handset
disp
key switches the control
panel display on and off. The handset
info
key scrolls through
and displays the parameter settings for the currently selected
preset.
Note:
Multiple daisy-chained n-SUBs should be initially configured
from each control panel rather than from the remote handset. This
removes the possibility of handset commands intended for one n-
SUB changing a previously defined configuration for another. Section
11.4.5 covers the configuration of multiple n-SUBs, and the use of
Lock Mode, in more detail.
11.3.1 n-SUB Presets
When first switched on from the control panel power button the
display will show
P1
and the
preset
mode indicator will illuminate.
P1
indicates that preset P1 is loaded.
Note:
If the n-SUB has not been previously used, all presets will
contain the same default settings and values. If the n-SUB has
been previously used some values and settings may vary from the
defaults. To restore the factory defaults across all presets, press and
hold the handset disp key for six seconds or switch the n-SUB off
and then on while pressing the control panel mute button.
n-SUB
presets contains a value or setting for each of the six
variable parameters. These are
gain
, low pass filter frequency
(
freq
),
invert
,
input
,
lock
, and
label
. The function of each is
described in Section 11.4.1 to Section 11.4.6.
To save a configuration preset once each parameter has been
adjusted use the handset
mode
5
or
mode
6
keys (control
panel:
mode
) to select
save,
then use the handset
up
or
down
keys (control panel:
up
or
down
buttons) to select a preset
number (
1
to
6
). Save the preset by pressing the handset
save
or
mode
5
keys (control panel:
mode
button). If the preset
selected as the save location is the currently selected one it will
be displayed with dashes either side (
-3-
).
Note:
The handset save key can be used at any time to modify an
existing preset following a parameter adjustment. Simply press and
hold save.
To reset the currently selected preset to the factory default
parameter values select
save
as described above and press and
hold the handset
disp
key for six seconds.
11.4 n-SUB Configuration Parameters
11.4.1 Gain
Gain
sets the volume level of the
n-SUB
. The adjustment range
is
10
to
99
and the factory default setting is
40
. See Section
11.5 for further guidance on setting this parameter.
11.4.2 Freq
Freq
sets the upper filter frequency. This should generally be set
as appropriate for the type of system and satellite speakers the
n-SUB
is to be integrated with. The adjustment range is
20Hz
to

17
250Hz
and the factory default setting is
60Hz
. See Section 11.5
for further guidance on setting this parameter.
11.4.3 Invert
Invert
switches (inverts) the acoustic phase (polarity) of the
n-SUB
. Inverting phase can be of value when deciding on the
optimum position for a sub-woofer. It is worth experimenting with
phase inversion before ruling out a particular sub-woofer position
for reasons of poor integration with the satellite speakers. The
options are
yes
or
no
and the factory default setting is
no
.
11.4.4 Input
Input
selects one of the three
n-SUB
inputs described in Section
11.2.1. The options are
AV
,
AMP
or
AUX
and the factory default
setting is
AV
.
11.4.5 Lock
Lock mode prevents
n-SUB
parameters other than gain, mute
and preset selection from being changed, thus ensuring that
inadvertent adjustments are not made and that daisy-chained
n-SUB
arrays remain synchronised.
To lock a single
n-SUB
use the handset
mode
5
or
mode
6
keys (control panel:
mode
) to select lock followed by the
handset
up
or
down
keys (control panel:
up
or
down
buttons)
to select
1
. When lock mode is active the lock indicator remains
illuminated.
Note:
Settings cannot be adjusted from the control panel when lock
mode is operational.
With multiple
n-SUBs
, lock mode must be configured from the
control panel for each
n-SUB
in turn. Use the control panel
mode
button to select
lock
, followed by the
up
or
down
buttons
to select a different lock number, from
1
to
6
for each
n-SUB
.
Note:
While there is no technical limit on the number of n-SUBs
that can be daisy-chained, six is the recommended practical
maximum.
Once an
n-SUB
has been allocated a lock number it can be
temporarily unlocked for adjustment (and re-locked) by pressing
and holding the appropriate handset
numeric
key (control panel:
press and hold the
mode
button). The lock indicator will flash to
indicate that it is temporarily unlocked.
Note:
Individual locking and unlocking enables subsequent
adjustments to specific daisy-chained n-SUBs to be made without
changing the settings of the other n-SUBs.
To permanently unlock an
n-SUB
it must first be temporarily
unlocked, then the handset
mode
5
or
mode
6
keys (control
panel:
mode
) used to select
lock
, followed by the handset
up
or
down
keys (control panel:
up
or
down
buttons) to select
OFF
.
11.4.6 Label
A three character alpha-numeric display label can be defined for
each
n-SUB
preset. Use the handset
mode
5
or
mode
6
keys
(control panel:
mode
) to select
label,
followed by the handset
mute
key to select the character position and the
up
or
down
keys (control panel:
up
or
down
buttons) to select an alpha-
numeric character.
11.5 n-SUB Gain, Filter Frequency and Polarity
Setting
n-SUB
gain
, filter (
freq
) and polarity (
invert
) parameters
will require some careful listening and experimentation if
optimum subjective performance is to be achieved. Try to put
yourself in the position of the film sound designer or music mix
engineer and aim for a sound that is consistent, well balanced
and free of undue bass or midrange emphasis. It may be useful
to listen with and without the
n-SUB
by using its
mute
function.
Note:
Don’t use the mute function rapidly and repeatedly in order
to judge the n-SUB’s contribution to the sound. Listen to a few
minutes of material with the n-SUB operating and then repeat
the same few minutes with it muted. Use a variety of programme
material but make sure it has an adequate level of low bass.
11.5.1 AV System
When connected to an AV processor, such as the Naim AV2,
the
n-SUB
filter
should always be set at its maximum -
250Hz
.
This is because the processor’s sub-woofer (LFE) channel itself
incorporates low pass filtering.
n-SUB
gain
should be set such
that low frequency effects do not dominate but integrate within
the context of the film. Only use the
invert
function if it proves
difficult to achieve a satisfactory result through adjusting the
gain
. If the
invert
function still results in no improvement, the
n-SUB
should be moved to an alternative location in the room.
Note:
Ensure that the processor’s “midnight” or “bass mix”
functions are not operational when setting up the n-SUB.
Note:
Different gain settings for music only and audio-visual
programme material via an AV processor may be appropriate. Use
the n-SUB’s preset feature to save appropriate settings.
11.5.2 n-SUB with n-SATS - Stereo Music System
For
n-SUB
integration with one pair of
n-SATS
in a conventional
stereo audio system, initially set the
filter
to
60Hz
(the default
value). Optimum
n-SUB
gain
will depend on the room acoustic
and the position of the speakers within it. An
n-SUB
close to the
listening position should, in theory, require less gain, however,
if close to the listening position means the
n-SUB
is relatively
distant from the walls, increased gain will likely be required.
Aim to set the
gain
such that bass elements of the music are
properly integrated. If bass subjectively draws attention to itself,
the
n-SUB
gain is probably too high. Only use the
n-SUB’
s
invert
function if it proves difficult to achieve a satisfactory result
through adjusting the
gain
. If the
invert
function still results in
no improvement the
n-SUB
should be moved to an alternative
location in the room.
Once the
gain
is set, it may be worthwhile experimenting with
small changes in
filter frequency
to fine tune the integration
between
n-SUB
and
n-SATS.
11.5.3 n-SUB with alternative speakers - Stereo Music
System
Larger satellite loudspeakers than the
n-SATS
will most likely
require the
n-SUB
filter
to be reduced. For medium sized stand-
mount loudspeakers begin with a setting of around
50Hz
. For
floor-stand loudspeakers initially set the
filter
to around
40Hz
.
Gain
and
invert
should be set as described above.
n-SUB

18
11.8 Floor Protectors
11.6 n-SUB Connection Panel
mains
input
speaker
level inputs
RC5 in
RC5 out
Ch 1 left in
Ch 2 right in
mono in
mono out
earth switch
external earth
data RS232 in/out
Note:
The RS232 sockets
enable connection to custom
install RS232 controllers.
Please contact your dealer for
the appropriate connection
cables. These sockets are not
intended for direct connection
to computer networks.
n-SUB Specification
Inputs
2 x line level, 1 x speaker level
Frequency Response:
20Hz - 250Hz
Power Output:
350 Watts
Dimensions (H x W x D):
385 x 385 x 393mm
Weight (unpacked):
29.6kg
Finishes:
Cherry, Maple, Black Lacquer
Mains Supply:
100-120V or 220-240V, 50/60Hz
Naim Floor Protectors can be
used to if the n-SUB is to be
installed on a non-carpeted floor.
n-SUB
11.7 n-SUB Control Panel
11.9 n-SUB Cable Clamp
25mm
from side
180mm
from back
193mm
from side
Fit the supplied Cable Clamp as
appropriate in one of the three
positions shown by the cross-
hatched squares .