MERIDIAN AUDIO L-ite Powered Sub-woofer user

L-ite

Powered

Subwoofer

Quad Electroacoustics Ltd, IAG House,
Sovereign Court, Ermine Business Park,

Huntingdon PE29 6XU

www.quad-hifi.co.uk

Tel: [phone] Fax: [phone]

Owner’s Manual

Quad L-ite Subwoofer

MAIN SERVICE CENTRES IN THE UK, USA AND CANADA

USA

IAG America, Inc.

15 Walpole Park South

Walpole

MA 02081

Tel: [phone]

Quad L-ite Subwoofer

QUAD L-ite

CANADA

Korbon Trading Ltd
6800 Kitimat Road

Units 19-20
Mississauga

Ontario

Tel: [phone]

U.K.

QUAD Electroacoustics Ltd.

IAG House, Sovereign Court,

Ermine Business Park,

Huntingdon,

Cambs PE29 6XU,

England.

Tel:[phone]

Fax:[phone]

www.quad-hifi.co.uk

Subwoofer

USER GUIDE

CONTENTS

IMPORTANT SAFETY CAUTIONS . . . . . . . . . . . . . . . . . . . . 2

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

USER INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

PACKING LIST AND UNPACKING THE EQUIPMENT . . . . . . 4

FITTING SPIKES AND FEET . . . . . . . . . . . . . . . . . . . . . . . . . 5

16

INSERTING BATTERIES INTO THE HANDSET . . . . . . . . . . . . 6

CONNECTORS AND CABLES . . . . . . . . . . . . . . . . . . . . . . 5

MAINS SUPPLY AND SAFETY . . . . . . . . . . . . . . . . . . . . . . . 6

CONNECTING THE SUBWOOFER . . . . . . . . . . . . . . . . . . . . 7

OPERATING THE EQUIPMENT. . . . . . . . . . . . . . . . . . . . . . . 10

SETTING UP THE SUBWOOFER . . . . . . . . . . . . . . . . . . . . . . 11

CONNECTING TWO SUBWOOFERS . . . . . . . . . . . . . . . . . . 13

SETTING UP TWO SUBWOOFERS . . . . . . . . . . . . . . . . . . . . 14

SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

SERVICE ADDRESSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Manual: Quad L-ite subwoofer 03-05 Issue 1

1

Quad L-ite Subwoofer

Quad L-ite Subwoofer

Stereo reproduction

settings. The goal is to ensure the subwoofer blends seamlessly into the sound
stage. Setting the subwoofer to Standby should reduce the bass extension, not
change the bass level - as always personal taste plays an important part.

Setting levels: Once the loudspeaker settings have been finalised, put the AV
amplifier into its “Test” mode (see instructions supplied with your processor.)
Adjust the levels until all channels are reproduced at equal loudness.

When adjusting the subwoofer output level avoid setting too high a level or you will
swamp the sound with bass which be tiring to listen to and may limit the
subwoofer’s ability to respond to large bass transients. Set a sensible level going into
the subwoofer from the processor. The volume display should be around 50 at
normal listening levels.

LFE: This channel was originally an additional bass channel with its own
dedicated subwoofer. In practice however, if any speakers are set to ‘Small’, the
LFE channel is combined with the bass from those channels and fed into the
subwoofer. When you set the LFE level from your AV processor, use care as the
LFE channel contains powerful low frequencies which, although normal in a
cinema, may overload a domestic subwoofer. If, during a programme, you hear
popping or thumping noises from the subwoofer, turn the AV Processor volume
level down and back off the LFE level. If this does not cure the problem, lower
the subwoofer volume level.

Note: If any channels are set to ‘Small’ the subwoofer must be on when the
system is playing otherwise there will be reduced bass , as well as no LFE.

Installing batteries in the remote handset

The handset operates on two LR6 (AA) batteries which are supplied. The battery
compartment is located at the rear of the handset. Unwrap the batteries and slide
the cover off the handset. Place the batteries in the handset observing the
polarity. The correct orientation is shown on the diagram. When the batteries are
installed, replace the cover.

AA AA

AA AA

Use of correct connectors and cables

You should ensure that cables which are used with Quad equipment are properly
terminated and appropriate to the task. This is particularly important with
loudspeaker cables and connections. If you are in any doubt consult your dealer.

When routing any cables to loudspeakers do not run them across open
floor spaces where they may cause danger to people and pets. Route them
safely, around room boundaries if necessary.

Testing the system

Low Pass Filter: The low pass filter should be set having regard to the size and
low frequency extension of the main speakers. The role of the subwoofer is to
extend the bass response of the system not to increase the overall bass level. If the
loudspeakers are large the LPF should be set low, a value around 45-55 Hz is a
good place to start. With smaller speakers this can be increased, up to 85Hz for
very small bookshelf units. As always the final value is determined by listening.

Low-level listening: Our ears are far more sensitive to midrange frequencies (2­5 kHz) than bass frequencies. Very low bass and especially percussive bass is ‘felt’
rather than heard. At low sound levels bass frequencies appear to attenuate faster
than midrange and treble. As the level increases this bass roll-off decreases and at
loud volumes is negligible. The pioneering work was done in the 1930’s by
Fletcher and Munson who produced a series of ‘Equal Loudness Contours’.
Occasionally we may wish to listen to a normally loud piece of music at a low
level but with retention of the bass information. The slope control on Quad pre­amplifiers compensates to some extent but there may be a case for assigning a
preset for low level listening where the subwoofer volume is set somewhat higher
and the LPF is set somewhat lower - as always this is for individual judgement.

By Ear: The simplest way to test the system is to play, at a moderate level, music
with deep consistent bass. Switching the subwoofer in and out of Standby should
cause change of the depth of bass, and the ambience will also alter. If there is a
significant change in bass volume, or a noticeable step in the bass response, or an
increase in coloration when the subwoofer is playing, the setup needs to be
refined further. By entering different settings in different presets, you will be able
readily to identify the most favourable combination.

Using an SPL Meter: This is done with a test disc or signal generator and is
beyond the scope of this handbook except to observe that SPL meter settings are
weighted ‘A’, ‘B’ and ‘C’ - these correspond to the inverse of the Fletcher-Munson
Equal Loudness Contours at 40, 70 and 100dB. For normal listening levels the
SPL meter is usually set to ‘C’ and the response set to slow. If you wish to use this
setup method you should definitely seek your dealer’s advice beforehand.

Loudspeaker cables

Loudspeaker cables should be carefully prepared. The following sketches show
the preparation of a speaker cable for use with Quad power amplifiers and
loudspeakers. When stripping the insulation, be careful not to cut into the wire.
Make sure that you collect together all the strands of wire as stray wires may
cause shorting which could result in damage or cause a fire.

When estimating the length of loudspeaker cable, provide sufficient to enable
access and tidy securing. Some cables are quite heavy and should be placed so that
they do not cause undue strain on the binding posts of the subwoofer.

Signal cables

Signal cables should be properly terminated and fully screened to minimise hum.
If you connect your subwoofer via the low level signal inputs, the cable between
your control unit or processor and the subwoofer could be quite long so
screeningis particularly important. Consult your dealer if in doubt.

12

5

Quad L-ite Subwoofer

Quad L-ite Subwoofer

OPERATING YOUR EQUIPMENT

Switching On

Check that all the connections to the subwoofer have been properly made and
that the system volume control is at minimum. Plug the supplied power cord into
the mains socket on the rear panel. Plug the mains plug into the wall socket and
switch the power on. Now switch the subwoofer on with the rest of your system.
The subwoofer on/off switch has a rocker action; press the upper part to switch
the equipment on and the lower part to switch it off. When switched on the light
above the power switch will glow and the subwoofer will be operational.

Operation - Controls and Functions.

All control functions are carried out using the remote handset. The handset must
be pointed at the subwoofer and be in line of sight for it to operate.

SUBWOOFER CONTROL

Standby: Operating the Standby key brings the subwoofer in and out of Standby.

The drawing on the right
shows a typical front panel
display during operation.

The preset light will not light if
no preset has been set up or if
a preset has been over-ridden.

In Standby, the Volume, Filter,
Preset and Phase indicators are
extinguished. The POWER and
the rear panel lights remain on
to show the unit is powered.

VOL UME

Filter F requ ency

45H z

35H z

PRE SET

1

POW ER

3

Connecting the subwoofer

Switch all active system components off before connecting the subwoofer

REAR PANEL CONNECTIONS

Mains Input

Mains Fuse

Mains Power Switch

Speaker (High) Level Inputs

INPUTINPUT

OUTPUTOUTPUT

LEFTLEFT

RIGHTRIGHT

OFF

85H z75H z65 Hz5 5Hz

PHA SE

2

0

4

180

LINE LEVEL

LEFTLEFT RIGHTRIGHT

SPEAKER LEVEL INPUTS

SERIAL No:

L-ite SUBWOOFER

QUAD ELECTROACOUSTICS LTD,HUNTINGDON, UNITED KINGDOM

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

WARNING: SHOCK HAZARD -DO NOT OPEN

AVIS: RISQUE DE CHOC ELECTRIQUE -NE PAS OUVRIR

ON

OFF

AC 220-240V~50Hz 400WAC 220-240V~50Hz 400W

POWER

FUSE T4AL250V

!

Line Level Outputs

Line Level Inputs

Volume: Press the Volume + key to increase the volume level. Press the Volume

- key to decrease the volume level of the subwoofer. The volume range on the

front panel display varies from 00 (minimum) to 99 (maximum).

Low Pass Filters: Pressing the appropriate filter key will select the frequency at
which the subwoofer rolls off. The filter has steps at Off and 35Hz-85Hz in 10
Hz increments. When ‘OFF’ is selected the subwoofer operates over its full
designed range. Pressing other keys lowers the maximum operating frequency.
The Low Pass Filter value should be chosen having regard to the nature of the
Front speakers and programme material. Follow the Setup Notes on Page 11 and
the instruction manual of your AV processor (if used) for more guidance.

Phase: This key toggles the subwoofer between 0º and 180º phase shift.

Presets: Four different settings of level, frequency and phase can be stored.

Pressing and holding any of the preset keys on the remote for 3 seconds will
cause the current settings to be stored in that preset. The display will show the
preset number then flash the preset number once to show it has stored the preset.

To change from one preset to another, press a preset key on the remote for less
than 3 seconds to recall the settings of that preset. The display will show the
preset number:

If you select a preset and then alter any aspect of the setup, the preset light will
extinguish (as the setup no longer matches the preset).

Note: When brought out of standby for the first time, the unit will display the
factory presets. Thereafter, bringing the unit out of standby will revert it to the
operational state last used. If you switch the power on and off at the rear panel
while the unit is in standby, the unit will power up to a normal operating state (i.e.
not in standby). To enter standby, again press the Standby key.

Connecting to a Digital AV processor

If your AV processor has a line level or LFE subwoofer output you should use
this connection. You will need to purchase a single screened RCA phono lead
from your dealer. Connect this lead to the Left line input of the Subwoofer as
shown below.

PROCESSOR

Stereo Line Level Connections

Stereo line level connections will be necessary

! Where there is no dedicated single subwoofer output

! With legacy AV systems where there is a stereo subwoofer line output

! In regular stereo systems where there is a suitable preamplifier line output, or

in the case of an integrated amplifier, a pre/main link that can be separated.
The output must be controlled by the main system volume control - a tape
output is not suitable. If you are in any doubt, consult your dealer.

A/V

SUBWOOFER

OUTPUT

INPUT

OUTPUT

LEFT

LINE LEVEL

SUBWOOFER

RIGHT

10

7

Quad L-ite Subwoofer

Quad L-ite Subwoofer

METHOD A: Use this method

! Where a Quad control unit is connected to the power amplifier using the

QUADLINK system - this will be found on 77 and 99 series systems only.

! If you have a Quad 77 integrated amplifier (whether you use QUADLINK

or not) or a preamplifier or integrated amplifier with a spare (unused)
preamplifier output.

Connect the control unit to the subwoofer using a good quality RCA screened
stereo cable as shown in the diagram below.

RIGHT

CHANNEL

METHOD B: Use this method

Quad 99 PRE

Preamp Out

L

R

INPUT

INPUT

OUTPUT

OUTPUT

LEFT

LEFT

LINE LEVEL

LINE LEVEL

SUBWOOFER

SUBWOOFER

LEFT

CHANNEL

RIGHT

Pre Out - Main In connections

(x2)

Method A: You will need two screened RCA ‘Y’ adaptors and two single RCA
phono cables.

Remove the Pre-Main links on your amplifier. Connect the socket (common) of
an RCA ‘Y’ adaptor to one of the mono cables. Connect one leg of the ‘Y’
adaptor to the Left Channel Pre Out socket on the amplifier and the other leg to
the Left Channel Main In socket. Connect the remaining plug on this
combination to the Left Channel Line Level Input on the sub-woofer. Repeat this
for the Right Channel.

Method B: You will need two stereo (or four single) screened RCA cables.

Connect a Stereo cable from the Line Level Inputs of the subwoofer to the Pre
Out sockets of the amplifier. Connect a second Stereo cable from the Line Level
Outputs of the subwoofer to the Main In sockets of the amplifier..

MAIN

IN

MAIN

IN

L

R

LL

RR

PRE

OUT

AMPLIFIER

PRE

OUT

AMPLIFIER

INPUT

OUTPUT

LEFT

LEFTRIGHT

RIGHT

LINE LEVEL

SUBWOOFER

INPUT

OUTPUT

LEFT

LEFTRIGHT

RIGHT

LINE LEVEL

SUBWOOFER

RIGHT

CHANNEL

! Where a Quad control unit is connected to the power amplifier via RCA

phono connectors.

! Where a regular preamplifier/amplifier combination is in use.

You will need two ‘split mono’ leads - a single phono plug connected to two
phono plugs. Connect the leads as shown in the diagram below taking care not to
mix up the channels.

Preamp Out

L

R

(x2)

INPUT

INPUT

OUTPUT

OUTPUT

LEFT

LEFT

LINE LEVEL

LINE LEVEL

SUBWOOFER

SUBWOOFER

LEFT

CHANNEL

RIGHT

Speaker level connections

The high level Speaker connections should be used only if your amplifier does
not have a line level subwoofer or preamp output. You will need two extra twin
core cables.

Using one of the additional twin core cables, connect the Left Speaker Terminals
on the subwoofer to the Left speaker terminals of the amplifier. Connect the Red
(+) speaker terminal on the amplifier to the Red (+) terminal on the subwoofer.
Connect the Black (-) speaker terminal on the amplifier to the Black (-) terminal
on the subwoofer. Now connect the Right Speaker terminals on the subwoofer to
the Right speaker terminals of the amplifier.

RIGHT

CHANNEL

HF

LF

Engineered by

Designed

ELECTROACOUSTICS

QUAD

and

SUBWOOFER

LEFT

RIGHT

LEFT

SPEAKER LEVEL INPUTS

L

LTD.

R

CHANNEL

HF

LF

Engineered by

Designed

ELECTROACOUSTICS

LTD.

QUAD

and

9

Quad L-ite Subwoofer

Quad L-ite Subwoofer

INSTALLATION

Positioning the subwoofer

Although the unit may be placed almost anywhere in the room, we recommend
that it be placed in front of the listener and as central to the listening position as
possible. As the subwoofer is a powered unit there should be a mains outlet
within easy reach. The subwoofer should not be operated within 450mm of a
television set as the drive unit magnet may distort the picture. Remember that
there should be a line of sight between the listening position and the front of the
subwoofer otherwise the remote functions will not be operable.

We suggest you initially position the subwoofer about 20cm (8 inches) from the
wall. Placing the unit close to the wall will enhance the bass; placing it across the
corner of the room will increase the bass further, possibly at the expense of
clarity. Do not place the subwoofer close to surfaces or objects that may rattle.
The floor under the subwoofer should be sound with no loose floorboards, etc.

You should expect to experiment with a variety of locations and sources before
making a final decision. The notes on Page 11 and 12 will help you.

Checking the AC power supply

The Quad L-ite subwoofer is supplied in versions suitable for connection to
230V, 220V, 115V or 100V AC power supplies. Before connecting the subwoofer
check that you have the correct version - if the subwoofer is connected to a lower
voltage than marked, the maximum output power will be lower than specified.

Before connecting to the AC power supply, check that the voltage range marked
on the back corresponds with that of the supply. Please check with the dealer if
you have any doubt as to the voltage in your area or intend to use the equipment
in regions which use other mains voltages.

If you are in any doubt of the correct operational voltage, ask a qualified
electrician before applying power to the equipment. The subwoofer will work
correctly within standard tolerances of this voltage.

Fuses

The mains supply fuse of the subwoofer is accessible on the rear panel after the
IEC mains plug has been removed. In the rare event that it has broken, you
should first check for any obvious cause before replacing the fuse with one of the
correct rating and type. The correct fuse values are:

220 - 240V (UK, Korea, etc.) T 4 AL 20mm Slow Blow
100- 120V (USA, Japan, etc.) T 8 AL 20mm Slow Blow

You should switch off the equipment and remove the connection to the mains
power outlet before changing the fuse.

Connecting to the AC power supply

Quad equipment supplied is provided with a mains cable fitted with an
appropriate mains plug. This plug should not be cut from the cable. If, for any
reason, the plug is removed, it must be safely disposed of. It must never be
plugged into a mains outlet.

Any replacement plug should be wired to the supplied mains cable as follows:

the BROWN wire must be taken to the LIVE terminal

the BLUE wire must be taken to the NEUTRAL terminal

In the UK a fused 13 Amp mains plug should be fitted with a fuse link rated to
13 Amp which conforms to BS1362. In other countries a value between 10 Amps
and 15 Amps should be used at either the wall socket or at the mains distribution
board. If you are in any doubt you should consult a qualified electrical engineer.

SETTING UP YOUR SUBWOOFER

General Notes

Your subwoofer is most likely to be used with two typical programme sources,
music and movies. The setup for these two very different sources may be
different if best results are to be achieved. Please read these setup notes in
conjunction with your processor and speaker manuals.

All setting up of the subwoofer should be performed with tone controls and filters set ‘flat’.

Listening Rooms and Subwoofer Positioning: Listening rooms are not ideal.
Most rooms are reverberant with some parallel walls. Because of room geometry
and construction there will be areas with severe peaks at some frequencies and
severe troughs at others. These peaks and troughs are called ‘standing waves’ and
if you site loudspeakers in such areas the response will be highly non-linear. With
subwoofers this situation is exacerbated by the fact that it is easier to treat high
frequency irregularities by the use of drapes, soft furnishings etc., but very hard
to do the same at bass frequencies due to the very long wavelengths - at 40 Hz
the wavelength is almost 9 metres.

To help locate standing waves in your listening room, one idea is to sit in the
listening seat and recruit a friend with a deep voice to speak as he moves around
the area where you propose to site your subwoofer - you will soon find out where
not to site it! Where the voice sounds most natural is a good place to start.

The low frequency response of the subwoofer and its blend with the main
loudspeakers is thus profoundly affected by positioning. Although bass is
enhanced by walls or corners, so often is coloration. As the drive unit faces
downward, the floor will influence the sound. The surface under the subwoofer
should be stable and unobstructed. If the carpet is very thick, consider placing
the subwoofer on a solid surface such as a marble slab.

The subwoofer has to blend with the main speakers: if you place the subwoofer
where it amplifies the irregularities of the room or the main speakers the result
will be bloated, coloured bass. If acoustic guitar and male voice sounds coloured
when the subwoofer is operating and less coloured when in standby, you need to
address the positioning first before adjusting any controls

Loudspeaker Phasing: Make sure that all loudspeaker channels are connected in
phase. Nothing is more certain to defeat a Home Cinema or Stereo setup
involving a subwoofer than one(or more) channels being out of phase. In Stereo,
if there is a doubt about the way the loudspeakers are connected, check their
phasing by playing a mono source - the sound should appear from a point
midway between the two loudspeakers. If this position is indefinite, reverse the
connections to one of the loudspeakers. Correctly connected loudspeakers give a
definite centre sound source with fuller bodied tenor and bass registers.

Setting the Phase of the Subwoofer: Phase at very low frequencies is not
straightforward to detect. Initially we suggest you temporarily set the low pass filter
to ‘off’ and the phase to 0º and play some bass heavy music in Stereo through the
main speakers and the subwoofer. From the listening position, switch the phase
between 0º and 180º. The setting which appears to give the greater bass output is
correct. Now follow the instructions below for setting the low pass filter.

Home Cinema Systems

Low Pass Filter: If you are using a digital AV processor the initial setting should
be ‘OFF’ as the processor will have its own bass management system.

Most digital AV Processors ask you to specify the size of speakers in the various
channels. These are usually ‘Large’ or ‘Small’. This sets the bass management for
the system. Unless your loudspeakers are large floor standing units, you should
choose 'Small' for the Front channels, as the subwoofer is going to be better at
providing clean, deep bass. Choose 'Small' for the surround channels and also for
the Centre channel, so that any bass from these channels will be directed to the
subwoofer. Set the ‘Subwoofer’ option on the processor to 'On’ or 'Yes'.

After experimenting with various sources you may need to adjust the LPF

6

11

Quad L-ite Subwoofer

Quad L-ite Subwoofer

PRELIMINARIES

The packaging contains the following items:

! One Quad L-ite Powered Subwoofer

! One IEC mains lead fitted with an appropriate mains connector;

! for UK this is QUKES2B

! for Europe this is QE2P2S2

! for USA, Canada, Japan and Korea this is QU3ES2C

! for other territories an appropriate cable will be supplied.

! Instruction Manual

! Warranty Registration Form

! Remote Control Handset plus two LR6/AA batteries

! 4 adjustable standard feet

! 4 adjustable spiked feet

! One cardboard carton and packing materials

Consult the dealer from whom you purchased the equipment if any of these
items are not present.

Unpacking the subwoofer

Open the carton and remove all the top packing pieces. Lift the subwoofer out
taking care not to damage the cabinet. When lifting the unit from the carton
support it from the bottom. DO NOT attempt to lift the subwoofer out of the
carton using the polythene bag. The unit is heavy; if you cannot manage it easily,
get someone to assist you.

CONNECTING TWO SUBWOOFERS

A/V

PROCESSOR

Connection to Quadlink Bus Systems

INPUT

OUTPUT

LEFT

RIGHT

LINE LEVEL

SUBWOOFER

RIGHT

CHANNEL

Normal Stereo Connection

INPUT

SUBWOOFER

OUTPUT

INPUT

OUTPUT

LEFT

LINE LEVEL

SUBWOOFER

Quad 99 PRE

Preamp Out

L

R

RIGHT

INPUT

OUTPUT

LEFT

LINE LEVEL

SUBWOOFER

INPUT

INPUT

OUTPUT

OUTPUT

LEFT

LEFT

LINE LEVEL

LINE LEVEL

SUBWOOFER

SUBWOOFER

LEFT

CHANNEL

INPUT

INPUT

RIGHT

RIGHT

Retain the packing materials for future use or return them to your dealer. If you
decide not to keep the packing, please dispose of it sensibly. The paper and
plastics are recoverable and may be taken to an appropriate recovery service.

Please retain the user manual and the information concerning the date and place
of purchase of this equipment for future reference. If you transfer this equipment
to a third party, please ensure all the instructions are passed on with the product.

Fitting the feet and levelling the subwoofer.

Screw

Foot

Carefully invert the subwoofer. Protect the top by placing it on a soft surface such
as a towel. Open the polythene bag and slide it part-way down the cabinet.

Two sets of adjustable screw feet are provided - regular and spiked. Choose one
set only - do not use a mixture of spiked and regular feet.

Threaded

Washer

Screw the threaded washer over each foot as shown. Screw a foot part-way into
the threaded hole at the bottom of each leg of the subwoofer and hand-tighten
the washer. When all four screw feet have been fitted, stand the subwoofer
upright and remove the bag.

With the aid of a spirit level, screw each foot in and out until the subwoofer is
level (side to side and front to back) and firmly supported on all four feet.
Tighten the washer with a suitable wrench to lock the assembly in position.

Note: When using spiked feet take care not to drag the subwoofer and be careful
not to pierce objects or cables which may be hidden under carpets, etc. Spikes are
not suitable for use with stone floors and can cause damage to wood floors, so
consider carefully before deciding which feet to use.

OUTPUT

LEFT

RIGHT

LINE LEVEL

SUBWOOFER

RIGHT

CHANNEL

Pre Out/Main In Connection

Loop Connection

‘Y’ Connection

INPUT

OUTPUT

LEFT

RIGHT

LINE LEVEL

SUBWOOFER

RIGHT CHANNEL

INPUT

OUTPUT

LEFT

RIGHT

LINE LEVEL

SUBWOOFER

MAIN

IN

MAIN

IN

L

R

L

R

PRE

OUT

PRE

OUT

Preamp Out

L

R

AMPLIFIER

AMPLIFIER

OUTPUT

OUTPUT

LEFT

LEFT

RIGHT

LINE LEVEL

LINE LEVEL

SUBWOOFER

SUBWOOFER

LEFT

CHANNEL

INPUTINPUT

OUTPUTOUTPUT

LEFT

LEFTRIGHT

RIGHT

LINE LEVEL

SUBWOOFER

LEFT CHANNEL

INPUT

OUTPUT

LEFT

LEFTRIGHT

RIGHT

LINE LEVEL

SUBWOOFER

4

13

Quad L-ite Subwoofer

Quad L-ite Subwoofer

Speaker Level Connection

SUBWOOFER

RIGHT

CHANNEL

HF

LF

Engineered by

Designed

ELECTROACOUSTICS

LTD.

QUAD

and

LEFT

SPEAKER LEVEL INPUTS

SETTING UP TWO SUBWOOFERS

General notes

These notes should be read in conjunction with the notes on Pages 11and 12.

!

Subwoofers should be sited so that they enhance the system bass response but
do not cancel each other out.

!

A well-sited pair of subwoofers for stereo applications will be adequately sited
for Home Cinema applications.

!

A well-sited subwoofer pair raises the bass output level 6dB when operating in
mono (Home Cinema) but not in Stereo.

!

Both subwoofers should be in line of sight to the listening seat as both will
answer to one remote handset.

!

When operating two subwoofers do all setups and operations on one handset

!

When allocating presets make sure that the same preset is allocated to each
subwoofer, e.g. Home Cinema on preset 1 on both subs, etc.

Home Cinema:

!

As AV Processors produce a common subwoofer channel considerations of
Left and Right do not apply, but with spaced subwoofers each helps to fill in
the troughs caused by in-room standing waves, smoothing the bass and giving
the sound greater intensity, ‘air’ and depth.

!

Set up the position of each subwoofer separately with the other one switched
off. After you have set both subwoofers up, reduce the front panel volume
level of each subwoofer by 3 points.

!

Complete the final adjustment with both subwoofers switched on. You may
need to make some small adjustments to the position of each sub for best
results. We suggest you enter this final setting as a Home Cinema preset.

Stereo:

!

Each subwoofer should be located as near as possible to its partnering
loudspeaker having regard to placement constraints.

!

The smaller the main speakers, the more necessary this becomes.

!

It is it is easier to set up each subwoofer with a mono source playing through
one channel with the other channel turned off.

!

Complete the adjustment by ear using a mono source with both channels and
subwoofers operational. We suggest you enter this setting as a Stereo preset.

RIGHT

SUBWOOFER

RIGHT

LEFT

SPEAKER LEVEL INPUTS

L

R

LEFT

CHANNEL

HF

LF

Engineered by

Designed

ELECTROACOUSTICS

LTD.

QUAD

and

INTRODUCTION

The Quad L-ite subwoofer is primarily intended for use with very high quality
sound reproducing systems in the home and we hope that they will give you
much pleasure. The subwoofer will very probably be used in conjunction with
Quad amplification though any quality electronics or home cinema equipment
can be used.

You should read the following useful notes before you begin to install and use the
equipment. The notes are directed towards responsible adults who can ensure
safe installation of the equipment. Minors should not attempt electrical
installation or carry out changes.

Quad subwoofers are very heavy and robust. Remember to check that any surface
on which you place it is stable and able to support this weight.

There are no user adjustable parts inside the equipment. You should refer any
servicing to a qualified engineer or return the equipment to either the dealer or
the Quad distributor.

INFORMATION TO THE USER

Good Practice

It is always good practice to switch off all equipment in the system before
connecting or disconnecting signal leads. This will prevent unpleasant and loud
noises coming from the loudspeakers and avoid the risk of damage to equipment.

Please be aware that very high sound pressure levels can cause permanent damage
to your hearing and also severe annoyance to neighbours.

Guarantee and Product Registration

Your Quad equipment is guaranteed against any defect in material and
workmanship for one year from the date of purchase (proof of purchase is
required). We ask that you complete and return the enclosed Warranty Registration
Form. Within the guarantee period, Quad will undertake replacement of defective
parts free of charge provided that the failure was not caused by misuse, accident
or negligence. Your statutory rights within the territory in which you purchased
the equipment are not affected by this guarantee.

Quad carries out a regular review of its products and reserves the right to adjust
the specifications and performance from time to time.

There are no user replaceable or serviceable parts inside this unit. Unauthorised
attempts to service or modify this product will invalidate the warranty.

Service Arrangements

Equipment for servicing should be returned to the supplying dealer, or to the
appointed service agents for your area. The addresses of Service Agents for the
UK, USA and Canada are listed at the rear of this manual. If you are abroad and
there is no suitable dealer in your area, please contact the distributor for the
country in which it was purchased or Quad Electroacoustics Ltd.

Equipment returned for service should use the original packing. Please enclose a
brief note with your name and address and the reason for returning the unit.

Care and Cleaning

The cabinet and non-electrical parts of the equipment may be cleaned with a
barely damp cloth provided the power has been switched off or unplugged at the
mains. Solvent based cleaners should not be used.

14

3

Quad L-ite Subwoofer

Quad L-ite Subwoofer

CAUTION!

RISK OF ELECTRIC SHOCK

DO NOT OPEN

TO REDUCE THE RISK OF ELECTRIC SHOCK

DO NOT REMOVE COVER (OR BACK)

NO USER-REMOVEABLE PARTS INSIDE

REFER SERVICING TO QUALIFIED PERSONNEL

ADVERTISSEMENT: RISQUE DE CHOC ELECTRIQUE-

NE PAS OUVRIR

IMPORTANT SAFETY INFORMATION

Read these instructions.

Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water.
Clean only with dry cloth.
Do not block any ventilation openings.
Install in accordance with the manufacturer's

instructions.
Do not install near any heat sources such as radiators, heat

registers, stoves, or other apparatus (including amplifiers)
that produce heat.

Do not defeat the safety purpose of the polarized or
grounding type plug. A polarized plug has two blades with
one wider than the other. A grounding type plug has two
blades and a third grounding prong. The wider blade or
the third prong are provided for your safety. If the
provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.

Protect the power cord from being walked on or pinched,
particularly at plugs, convenience receptacles, and the
point where they exit from the apparatus.

Use only attachments/accessories specified by the
manufacturer.

Use only with a cart, stand, tripod, bracket,
or table specified by the manufacturer, or
sold with the apparatus. When a cart is
used, use caution when moving the cart/
apparatus combination to avoid injury
from tip-over.

Unplug this apparatus during lightning storms or when
unused for long periods of time.

Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or plug is
damaged, liquid has been spilled or objects have fallen
into the apparatus, the apparatus has been exposed to rain
or moisture, does not operate normally, or has been
dropped.

Warning: To reduce the risk of fire or electrical shock, do
not expose this product to rain or moisture. The product
must not be exposed to dripping and splashing and no
object filled with liquids such as a vase of flowers should
be placed on the product.

No naked flame sources such as candles should be
placed on the product.

Caution: Changes or modifications not expressly
approved by the manufacturer could void the user's
authority to operate this device.

This symbol indicates that there
are important operating and
maintenance instructions in the
Literature accompanying this unit.

This symbol indicates that
dangerous voltage constituting a
risk of electric shock is present
within this unit.

Warning: The mains power switch for this appliance is
located on the rear panel. To permit free access to this
switch, the apparatus must be located in an open area
without any obstructions.

NOTE: This equipment has been tested and found to
comply 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 energy 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 the equipment 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

receiver.

! Connect the equipment into an outlet on a circuit

different from that to which the receiver is connected.

! Consult the dealer or an experienced radio/TV

technician for help.

IMPORTANT NOTICE TO UK USERS

The appliance cord is terminated with a UK approved
mains plug fitted with a A fuse. If
replaced, an ASTA or BSI approved BS1362 fuse rated at
10A must be used. If you need to change the mains plug,
remove the fuse and dispose of this plug safely immediately
after cutting it from the cord.

Connecting a Mains Plug

The wires in the mains lead are coloured in accordance with
the code: Blue: NEUTRAL Brown: LIVE: Green and
Yellow: Earth. As these colours may not correspond to the
coloured markings identifying the terminals in your plug,
proceed as follows:
The BLUE wire must be
connected to the terminal
marked with the letter N or
c o lo u r ed B LUE o r
BLACK. The BROWN
wire must be connected to
the terminal marked with
the letter L or coloured
BROWN or RED. The
GREEN & YELLOW wire must be connected to the
terminal marked with the letter E or coloured GREEN or
GREEN & YELLOW or marked with the Earth Symbol

10 the fuse needs to be

GREEN

&

YELLOW
(EARTH)

BLUE

(NEUTRAL)

FUSE

(10 A)

BROWN

(LIVE)

SPECIFICATIONS

Quad L-ite Subwoofer

(Measurements made with 230V supply)

Bass Drive Unit 250 mm (10”) Tri-lam

Amplifier Power Output 300 W RMS

Line Input Sensitivity 250mV for 100W

Frequency Range 25 Hz - 95 Hz

(Boundary Position)

Max Power Output 108dB
(SPL at 1 Metre)

Low Pass Filter Range 35 Hz - 85 Hz (plus bypass)

(in 10 Hz increments)

Input Impedance 10 k
(Line input)

Phase Adjustment 0º - 180º switchable

Dimensions

(H x W x D mm) 485 x 288 x 435 (plus connectors)

Weight

Gross 28.5 Kg
Net 26 Kg

The right is reserved to alter all performance and specifications as required

COMPLIANCE

This Quad product complies with the relevant clauses enshrined in the following
standards and directives in force at the time of the introduction of the product.

EU

Directives: 89/336/EC, 72/23/EEC
Safety: EN60065 (CB Scheme)
Emissions: EN55013, EN61000
Immunity: EN55020:2002.

USA: UL 6500:2002.
Approved under the verification provision of FCC Part 15 as a Class B Digital

Device.

CANADA: CAN/CSA-E60065-00

2

15