Q ACOUSTICS 2070Si User Manual
2000i Series
EN
FR
User Manual and Product Specifications
For languages IT, ES, DE, EL, ZH, RU,
NL, PL, SE, see the CD provided
Important Information - Please Read Carefully
This symbol indicates that there are important operating and
CAUTION!
RISK OF ELECTRIC SHOCK
DO NOT OPEN
maintenance instructions in the literature accompanying this unit.
EN
TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK)
Read these instructions. Unplug this apparatus during lightning storms or when
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.
NO USER-REMOVEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED PERSONNEL
unused for long periods of time.
Refer all servicing to qualified service personnel. Servicing
is required when the apparatus has been damaged in any Important notice to UK users
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.
Warning: The mains power switch for the subwoofer is the
device used to disconnect the unit from the mains supply.
This switch 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, and the switch must be
freely operable.
Caution: Changes or modifications not expressly
approved by the manufacturer could void the user's
authority to operate this device.
Service: Equipment for servicing should be returned to the
supplying dealer, or to the service agent for your area. The
addresses of the main Service Agents for the UK are listed
in this manual.
This symbol indicates that dangerous voltage constituting
a risk of electric shock is present within this unit.
Third parties: In the unlikely event that you pass this product
on to a third party, include these operating instructions with
the product.
The appliance cord is terminated with a UK approved mains
plug fitted with a 3A fuse. If
an ASTA or BSI approved BS1362 fuse rated at 3A 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:
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 coloured BLUE or BLACK. The BROWN
wire must be connected to the terminal marked with the
letter L or coloured BROWN or RED.
To completely disconnect
this apparatus from the
AC Mains, disconnect the
power supply cord plug
from the AC receptacle.
Where the MAINS plug or
an appliance coupler is
used as the disconnect
device, the disconnect
de vic e sha ll rem ain
readily operable.
the fuse needs to be replaced,
3A FUSE
BS 1362
BLUE
(Neutral)
BROWN
(Live)
Q Acoustics 2000i Series
EN
Introduction
The Q Acoustics 2000i series is a range of loudspeakers designed to meet the
highest expectations of dedicated 2-channel audiophiles and discerning
movie enthusiasts. The range comprises:
2010i: Compact Bookshelf speaker with a 100 mm bass driver.
2020i: Bookshelf speaker with a 125 mm bass driver.
2050i: Floorstander with two 165 mm bass drivers
2000Ci: Centre channel with 2 x 100 mm bass drivers, which can be wall
mounted if required.
2070Si: 140 Watt active subwoofer with a 2 x 170 mm driver and signal sensing
for automatic power on/off.
The 2020i and 2050i speakers are both bi-wireable. All the loudspeakers may
be operated close to TV monitors with no ill-effects with the exception of the
2070Si, which should not be operated within 500mm of TV screens monitors or
other magnetically sensitive equipment. Plasma and LCD screens are
unaffected.
Before making any connections to your loudspeakers make sure that all active
units in your system are switched off at the mains.
When switching on your sound system or changing input sources, set the main
volume control at a low level. Turn up the level gradually.
NEVER play your sound system at full volume. The position of the volume
control is deceptive and does not indicate the power level of the system. Using
very high volume settings may damage your hearing.
DO NOT connect your loudspeaker terminals to the mains supply.
DO NOT expose your loudspeakers to excessive cold, heat, humidity or
sunlight.
If you play your loudspeakers without their grilles on, be careful to protect the
drive units from damage.
DO NOT use makeshift stands. Fit the Q-Acoustics dedicated stand
according to the instructions and using any fixings provided. Your dealer will
advise you.
DO NOT dismantle the loudspeaker. You will invalidate the warranty.
Unpacking your loudspeakers
Unpack the speakers fully. Lift the speakers from the cartons by holding the
cabinets. Do not use the protective bags to lift them. The 2050i and 2070Si are
heavy - get assistance to lift them if necessary.
When manoeuvring loudspeakers, do not drag them across the floor as this
may cause damage - lift them before moving them.
In the carton you will find: The loudspeaker/s and this product manual.
In addition the packing for the following models contains:
2050i: A set of floor spikes and spike covers for each speaker. An Allen key to
adjust the spikes once fitted.
2070Si: A power cord suitable for the mains supply in your area,
2 x Right angled RCA / Phono cables and an AV Setup CD.
Check the product carefully. If any items are damaged or missing, report this
to your dealer as soon as possible.
Retain the packing for future transport. If you dispose of the packing, please
do so following all recycling regulations in your area.
Preparation
Spikes are sharp. Exercise care!
Never place a spiked loudspeaker where it can cause damage!
Always move your loudspeakers by lifting them - never drag them!
Fitting the Floorstand Spikes- 2050i Foam Bung
Thread the spikes fitted with locking The 2000i series speakers are rear ported and designed to work best with
nuts half way into the base and return some space behind them i.e. 200mm or so away from a wall. If you
the loudspeaker to the upright position your speakers close to a wall/ corner then the foam bungs
position. (If you have a wood or stone should be inserted into the rear ports or there could be too much bass.
floor push a spike protector over each The 2070Si subwoofer bass is adjusted using the level controls.
spike before turning the speaker
upright) When the speaker is the right
way up, insert the Allen key into each
spike from the top and adjust all the
spik es in and out un t il the
loudspeaker is level and stable.
EN
Ensure the bungs are fitted snugly into the port without inserting them too
far. You will find the level of bass is reduced but definition and bass
extension is increased. Experiment to see what you prefer and try making
small changes to the position of the speaker to optimise the final result.
Positioning Passive Loudspeakers
2050i
The 2050i loudspeakers should be positioned at least 200mm from a back
wall and 500mm from the side walls. Placing the speakers closer to the wall will
increase bass but could cause the sound to boom and lack precision and
detail. The speakers should be 2m - 4m apart and central to the seated
listener. Turning the speakers slightly inwards will sharpen a stereo image but
may cause narrowing of the sound source.
>200mm
2m-4m
>500mm
0-30°
2m-4m
2010i and 2020i
The 2010i and 2020i are ideally mounted on Q-Acoustics floor stands or wall
mounted. If you are stand mounting, a simple guide is that the treble unit
should be at ear level to a seated listener. Wall mounted speakers may be
mounted slighter higher with the speaker angled down. Stand mounted
speakers should be treated as floorstanding speakers except that the
speaker may be placed a little closer to the back wall. Shelf mounting is also
possible.
Dolby and the double-D symbol are
trade marks of Dolby Laboratories.
An optional bracket designed specifically to wall mount the Q Acoustics 2010i,
2020i and 2000Ci is available from your dealer. Floor stands for the 2010i and
2020i are also available.
Be prepared to experiment to find the best setup for your taste in your
particular listening room.
Effects loudspeakers
2000Ci
The 2000Ci is designed to be operated close to a TV screen and central to it. It
should be placed immediately above or below the screen. If you are using a
regular TV set, make sure that the TV is capable of adequately supporting the
speaker and has a level top. If not, consider placing the TV on a cabinet with
the 2000Ci on a secure shelf immediately below the TV.
If you have a Plasma or LCD monitor, mount the 2000Ci to the wall or other
suitable surface immediately above or below the
screen using the Q-Acoustics Wall Bracket.
Surround Speakers
There are recommendations from Dolby labs for 5.1
effects speakers.
Surround speakers should be mounted on either side
of the listener, slightly behind the listening position. The
speakers should be sited facing inward either
mounted on the side walls of the room or if the room is
large, on high stands and with their centres above ear
level to a seated listener.
400mm
EN
Connecting Passive Loudspeakers
Terminals and Connectors Loudspeaker Cables
The 2020i and 2050i are bi-wireable. A bi-wireable crossover has four Specialist loudspeaker cables will offer a higher standard of
terminals. The upper pair of terminals connects to the treble (HF) reproduction than general purpose ‘bell’ or ‘zip’ wire. Use cable with
speaker and the lower pair to the bass (LF) speaker/s. As supplied the generous amounts of copper for the front and centre channels. Thin
crossovers are fitted with removable links to connect the terminal pairs. cables reduce the bass and restrict the dynamic range. Surround
This permits you to connect the loudspeaker conventionally using one (rear) channels are less critical.
pair of cables or in bi-wired mode with two pairs.
The 2010i and 2000Ci have standard two terminal crossovers. this is connected to the positive terminals. The cables connecting
.
Standard
Connection
2020i, 2050i
Bi-Wired
Connection
2010i, 2000Ci
Standard
Connection
Speaker cable has a stripe or tracer along one core. By convention
the amplifier to the front loudspeakers should ideally be the same
length. Never join cables - use complete lengths.
Preparing Cables
Split the cable to a depth of about 40 mm.
Bare the wire to a depth of 10mm and twist
the ends to gather any stray wires. Crop
the cable leaving 7mm of bare wire
exposed.
Connecting a Terminal
Unscrew the terminal anticlockwise to
expose the mounting hole in the base of
the terminal column.
Insert the bare end of the cable into the
hole. Re-tighten the terminal fully hand
tight. Make sure there are no stray wires
which could touch adjacent terminals.
In the EU it is against safety regulations to
use 4mm loudspeaker plugs.
Tight
7mm
30mm
Loose
EN
Connecting Passive Loudspeakers
EN
Connecting the 2010i and 2000Ci
Stereo Connections
Standard Connections
Connect the RED (+) terminal of the RIGHT loudspeaker to the RED,
Positive (+) terminal on the RIGHT channel of the amplifier. Connect the
BLACK (–) terminal of the loudspeaker to the matching BLACK,
Negative (–) terminal of the amplifier.
Repeat this procedure for the LEFT channel.
In the case of the 2020i and 2050i you may use any convenient
Positive(+) or Negative (–) terminal. Refer to the illustration below.
Standard Wiring: 2020i and 2050i
RIGHT SPEAKER
RIGHT
SPEAKER
AMPLIFIER
LEFT
SPEAKER
LEFT SPEAKER
RIGHT
SPEAKER
RIGHT SPEAKER LEFT SPEAKER
AMPLIFIER
LEFT
SPEAKER
Bi-Wiring
Directly connecting the treble and bass networks of a loudspeaker to an
amplifier improves both bass performance and dynamic range.
To bi-wire: Prepare two twin cables for each loudspeaker. Unscrew all
the loudspeaker terminals and remove both links. Now connect the
treble terminals and the bass terminals to the amplifier following the
procedure described in Standard Wiring. Refer to the illustration below.
Bi-Wiring: 2020i and 2050i
RIGHT SPEAKER LEFT SPEAKER
RIGHT
SPEAKER
AMPLIFIER
LEFT
SPEAKER
When your speakers are connected: Switch on the system and play
some music at moderate level. Fine tune the speaker placement to suit.
2070Si Subwoofer
EN
Phase
Control
Level
Control
Crossover
Control
Power
Indicator
Speaker
Inputs
Line
Input
Line
Output
Mains
Input
Voltage
Selector
LEVE L
MUSI C
STAT US
SOUN D
Q-AC OUST ICS 207 0Si
MODE
Sound
Mode
LINE
IN
LEFT /
MONO
IN
RIGH T
OUT
CHAI N
WARNING: TO REDUCE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS PRODUCT TO RAIN OR
MOISTURE. WHEN SERVICING, USE ONLY IDENTICAL
PARTS.
AVERTISSEMENT : POUR DIMINUER LE
RISQUE D’INCENDIE OU DE CHOC
ÉLECTRIQUE, NE PAS EXPOSER CE
PRODUIT À LA PLUIE OU À
L’HUMIDITÉ
AV
Phase
Invert
CROS SOVER
0°
PHAS E
INVE RT
HIGH L EVEL
0°
HIGH
MED
LOW
AUTO O N
SENS ITIVI TY
Auto on
Sensitivity
LEFT
RIGH T
VOLT AGE
90°
PHAS E
SEAL ED
VENT ED180°
SPEA KER
TYPE
110V -120V 6 0Hz
~
220V -240V 5 0Hz
~
100 WA TTS
180 °
Speaker
Type
Preliminaries
Unpack the subwoofer following the guidelines given earlier. Before
connecting the subwoofer please make sure that all the electronics in
your system are switched off at the mains.
The subwoofer is set to the voltage in your area. If you move to an area
with a different voltage, be sure to set the voltage selector to the right
setting before connection to the mains supply!
Positioning the Subwoofer
Bass frequencies are substantially omni directional. Although this means
that you can position the subwoofer almost anywhere, the stereo image
will still benefit by positioning the subwoofer level with the front
loudspeakers and as central to the listening position as possible. This
may not be feasible in a multichannel system. If you place the subwoofer
close to a wall the bass will be re-enforced therefore in some locations
the bass may be boomy and indistinct.
The subwoofer should be positioned close to a mains power source. Do
not use extension cables. Purchase a longer power cord if necessary.
The MAINS ON/OFF switch is the means of disconnecting this apparatus
from the mains and is mounted on the rear panel. There should be ample
free space between the rear of the cabinet and any wall or other object to
allow free unrestricted access to this switch.
When positioning the subwoofer ensure the floor is sound with no loose
floorboards etc. The air movement from the subwoofer at high volumes is
substantial - do not place it close to soft furnishings or objects that may
rattle. Do not place objects of any kind on the unit.
2070Si Subwoofer - Operation
Setting Up and Use
Auto Power On: This feature enables you to switch the main system on
and off without having to remember to switch the subwoofer on and off as
well.
If there is no signal input, after a few minutes the subwoofer will
automatically power down into Standby mode. This is indicated by the
POWER light on the rear panel changing to red. As soon as the
subwoofer senses an input it will automatically switch into operational
mode and the power light will again glow green. Some types of music
and some TV channels have very little low frequency information in the
audio signal in which case the subwoofer may not automatically switch
out of standby even though sound is coming from the other speakers in
the system. If this happens then the threshold can be adjusted to make
the unit more sensitive by setting the auto-on sensitivity to HIGH. Under
some circumstances however this setting may make the sub-woofer stay
on at all times, this is due to the small amount of noise which will normally
be present from the main system amplifier. This noise should disappear
when the amplifier is set to standby, thus allowing the subwoofer to turn
off again. If the sub-woofer remains on even when the main amplifier is
turned off then we recommend you leave the sensitivity switch at MED,
the loss of bass will be almost undetectable due to the characteristic
response of human ears.
If the level of noise produced by the amplifier is higher than normal, or the
connection cables are picking up hum from nearby power cables, the
sub-woofer may remain on even when no sound is playing. If hum is
noticeable from the subwoofer then you should try moving the cables to
reduce the hum pick-up or try a different cable/s. In circumstances where
EN
the problem cannot be easily remedied we recommend trying the LOW
setting of the sensitivity switch to see if that allows the sub-woofer to enter
standby.
Although the subwoofer can be safely left in standby mode indefinitely, if
you are going to be absent from home for a long period, we advise that
the unit is switched off at the ON/OFF switch.
The 2070Si Subwoofer also has a fail safe heat protection system. If the
amplifier overheats it will shut down momentarily and then resume
operation. If this occurs check that the ventilation holes on the control
panel are not covered and that the sub-woofer is not placed too close to a
source of heat such as a radiator.
Using Multiple Subwoofers: Your 2070Si sub-woofer includes a Line
output connection called “Chain out”. In systems where more than one
sub-woofer is used this allows the signal to be daisy chained to another
one or more sub-woofers. This is just a convenience feature which is an
alternative to using a “Y-Adaptor” at the amplifier output. Please note that
the signal is a straight pass-through and so all sub-woofers must be setup independently using their controls as normal.
The following section is divided between home cinema installation and
standard stereo installation. Please refer to the relevant section for your
system.
Connecting the 2070Si
Multi-Channel AV System
Connections
Standard Connection is via the Line level RCA phono Inputs. For a typical
AV system set-up you will need a single RCA phono interconnect. As this
cable is likely to be quite long, make sure you get a good quality fully
screened cable. Your Q Acoustics dealer will be happy to supply you with
a suitable interconnect.
AV AMPLIFIER
LEFT
RIGHT
REAR LS FRONT LS
CENTRE LS
RIGHT
LEFT
SUB
OUT
Connect the SUBWOOFER OUTPUT on the AV amplifier to the L/Mono
Line input on the subwoofer, pushing the plugs firmly home to ensure a
good contact.
Setting Up
Check that all system connections are properly and securely made.
Ensure that the subwoofer is switched off.
SUBWOOFER
LIN E
IN
LEF T /
MON O
IN
RIG HT
EN
Set the controls to the following default settings:
Level Approximately half
Crossover Fully clockwise (AV setting)
Phase Fully anti-clockwise (0° setting)
Sound Mode AV
Phase invert 0°
Auto on sensitivity Med
Speaker type No effect when crossover set to AV so
either position
Plug the supplied power cord into the subwoofer and then into the AC
supply socket. Switch on the power at the supply socket and then switch
the power switch on the subwoofer to 'ON'. The POWER light on the
subwoofer amplifier panel will glow and the subwoofer is operational.
Check the settings on your AV amplifier to make sure that the sub-woofer
is set to 'ON ‘or YES. The sub-woofer level on the AV amplifier should be
set at its default position or 0dB. You should already have set the speaker
sizes and positions for all the other speakers in your system. If you have
the option to set the crossover frequency on the other channels make
sure this is set appropriately to your speakers. Set the distance (or delay)
setting that is correct for the sub-woofer position you have chosen.
Connecting the 2070Si
Multi-Channel AV System
Setting Up
Play some stereo music you are familiar with and experiment with the
Phase invert setting and level control until you hear a seamless blend
between the front speakers and the subwoofer. If you can hear the
subwoofer standing out it's too loud!
Always bear in mind that the human ear's sensitivity to bass varies
enormously with the volume level, hence the need for a wide range of
programme material and sound levels. Once you are happy with the
sound you can then fine tune the performance by using the included CD.
Many Home Theatre amplifiers have distance settings which build in a
time delay depending on the distance of the speaker from the optimum
listening position; the sweet spot. The location of the subwoofer is one of
the most important aspects of any Home Theatre system therefore
getting these settings correct will give a significant improvement to the
system's overall performance. Included with the 2070Si Subwoofer is a
CD designed to assist in the setup of the AV amplifiers distance/time
delay settings.
EN
Set-Up Disc: The disc contains six tracks, each one plays pink noise (20
Hz to 1000Hz) through a combination of one speaker and the subwoofer.
Track one: Subwoofer and Front Left speaker
Track two: Subwoofer and Front Centre speaker
Track three: Subwoofer and Front Right speaker
Track four: Subwoofer and Rear Right speaker
Track Five: Subwoofer and Rear Left speaker
Track six: Subwoofer and all speakers
Choose whichever front speaker is closest to the subwoofer and play the
corresponding track. For instance if it is the front right speaker then play
track three. Adjust the amplifier distance/time delay settings for the
subwoofer by the smallest amount possible. This can be increased or
decreased, it's not important which. For instance if the distance is set to
4m then change it to 4.1m or 3.9m. Listen to see if the pink noise
becomes warmer and fuller or thinner in tone.
If you chose 4.1m and the sound became fuller in tone then change the
setting again to 4.2m and so on until the sound starts to become thinner
again. If however when you changed to 4.1m and the sound became
thinner try reducing the setting to 3.9m. In this way it should be possible
to find the optimum (warmest) setting.
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