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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 

Summary of Contents for ALLAE - 2

Page 1: ...WO RLD CL AS S H I F I WORLD CLAS S H I F I O W N E R S M A N U A L Speakers SL2 all Ariva axent axess n SATS n CENT n SUB...

Page 2: ...imits 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 equip...

Page 3: ...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 man...

Page 4: ...ical 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 crossove...

Page 5: ...ling 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...

Page 6: ...pension 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...

Page 7: ...uld 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...

Page 8: ...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 n...

Page 9: ...ack 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...

Page 10: ...duce 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...

Page 11: ...herry 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...

Page 12: ...dspeaker 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...

Page 13: ...B 1W 1m Power Handling 150 Watts music programme Impedance 6 nominal Dimensions H x W x D 175 x 940 x 440mm Weight unpacked 27 4kg Finishes Cherry Maple Black axess Specification Frequency Response 45...

Page 14: ...3ft 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 T...

Page 15: ...d 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 w...

Page 16: ...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 v...

Page 17: ...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 perforat...

Page 18: ...cess to gain and display control To select and adjust a parameter use the handset mode5or mode6 keys control panel mode to select Once a parameter is selected use the handset up or down keys control p...

Page 19: ...tening 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 consiste...

Page 20: ...tion 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...

Page 21: ...2 2001 Limits for harmonic current emissions equipment input currents up to and including 16 A per phase Immunity Tested to EN55020 Electromagnetic immunity of broadcast receivers and associated equip...

Page 22: ...Naim Audio Limited Southampton Road Salisbury England SP1 2LN Telephone 44 0 1722 332266 Fax 44 0 1722 412034 www naim audio com Part No OWMSP 12 001 0033 Drawing No NA401001 400 2...

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