QMotion QM 1000AS User manual

User
Manual


1000A User Manual
2
Contents
 
 
 
 
 
 
 

3
Warnings
QM-1000 manual
Warning, constant exposure to high ambient
sound pressure levels will cause hearing damage.
Exposure to extremely high noise levels over
long periods of time will cause permanent
hearing loss.
Many countries have Government occupational
safety authorities and the following noise table
is a commonly agreed standard of permissible
noise level exposures a worker can be subjected
to without suffering great hearing loss.



8 90
6 92
4 95
3 97
2 100
1 ½ 102
1 105
½ 110
¼ or less 115
Any exposure in excess of the above permissible
limits could result in some hearing loss.
You will notice a rapid increase in hearing
damage above 103dB. Apart from the sound
pressure level of the sound system, you have
the added effect of people yelling into your
ear to he heard over the volume of the sound
system. Hearing damage can not be reversed so
limit the time you are in loud environments or
buy ear plugs.
Be protected by hearing protection such as ear
plugs. In the case of audio mixing personnel,
remove the plugs when you are mixing and
replace them if you are between music sets.
This will lower your exposure time to high SPL.
Safety precautions
Quest Engineering strongly advise
unless you possess skill in the proper
use of hand and power tools and
have a thorough understanding of
local building and re codes, then the
installation of this speaker should
be carried out by suitably qualied
personnel following locally authorised
and approved safety standards. A
familiarity with the area behind the
wall or ceiling where you plan to
install the speakers is extremely
important. Improper installation can
cause serious injury or death. If in
doubt contact your Quest Engineering
dealer or a professional installation
technician.
Installation allowing direct precipitation
is not advised and installation practise
must prevent liquids from entering the
speaker enclosure.
Do not place sources of heat on the
speaker cabinet such as lighting
equipment or smoke machines, and
where possible please keep out of
direct sunlight.
Attention
Before connecting or operating your
new Quest Engineering speaker, please
study the accompanying instruction
manual paying particular attention to
the operating precautions and wiring
procedure.
Quest Engineering will not assume
responsibility for incorrect installation
or operation of this product.

1000A User Manual
4
Primary controls
Description
QM1000 Overview
The compact QM1000/108 Flexi-System is a
combination sub bass and satellite speaker
system powered with three internal ampliers
and controlled from a master input module
built into the QM1000 sub bass box. It has a
number of operational modes for a variety of
live and installed sound applications.
Multiple inputs
This system is primarily a sub bass/satellite full
range stereo system with the added advantage
of two extra inputs. The ampliers powering
the satellite speakers can be accessed
independently of the main signal stream. This
means that a completely different signal stream
such as fold-back mixes or a combination of
fold-back and front of house mixes can be sent
to the QM108 satellite speakers or substitute
any other satellite speakers that the audio
operator may wish to use.
Three Systems in one box
This exibility means that the QM1000
bass module can be utilised as the bass
reinforcement to any conventional powered
full range speaker system and the satellite
speakers can be used as fold-back monitors
with 2 channels of independent fold-back
mix. It is also possible to substitute any of
the other Q-motion series multipurpose
fold-back/front-of-house monitors for the
QM-108 speakers to give the maximum in
exible audio. One show this can be a sub/
satellite system and with the ick of a switch,
it becomes a powerful sub bass + 2 fold-
back channels system with the capability of
connecting 4 x fold-back monitors.
(See QM10/12DC)
QM 108 Satellite speaker
The QM108 is a compact 2-way 8-ohm
trapezoid full range speaker intended for
use with the QM1000 Flexi-System package.
It is also very good as a stand alone timber
installation speaker for voice and music
reproduction. The cast frame 8” mid bass and
20mm exit horn loaded HF driver are tuned
for maximum vocal clarity and projection.
The power handling capacity of the QM108
is well over 170 watts RMS and has internal
protection plus the added limiter protection
of the QM1000 ampliers. The QM108 can be
pole mounted on a 35mm speaker stand or
wall mounted with a dedicated wall bracket.

5
1. Stereo – Auxiliary mode switch
Input routing selection switch for stereo
sub/satellite or independent multi channel
operation.
Cable connections and system configuration
2. Left and Right F/male XLR- Phono inputs.
Stereo line level signal inputs to sub bass and
satellite ampliers when Aux input switch set
to stereo mode. In this mode master volume
controls total system output.
4. Auxiliary input crossover selector
This switch will select either full range signal
or activate one of 2 lter settings at 80Hz or
120Hz to the 2 satellite ampliers.
3. Aux 1 & 2 XLR – Phono inputs
Independent auxiliary inputs to access satellite
ampliers when Aux input switch selected
to Aux. Gain per Satellite channel can then
controlled by the Aux 1 & 2 volume controls.

1000A User Manual
6
7. Sub Bass volume
Volume control for internal 650 watt Sub bass
amplier. When used in conjunction with the
Master L&R input, a balance between the
low frequencies of the sub bass and the mid
high output from the satellite speakers can be
optimised for the venue and the music source.
8. HF cut
This control can be used to change the bass
crossover frequency from 80 Hz to 200 Hz.
For best sub bass response select 80 – 100Hz.
1. L&R Line In
Connect signal leads from your mixer
(master left/right, line out, to the balanced
inputs using XLR mic lead or unbalanced
phono connectors. XLR connectors to be wired
as follows:1 ground, 2 +, 3 -. Unbalanced
Phono leads pin1 ground and shorted to pin 3-,
pin 2 tip. Balanced Phono leads can be wired
Sleeve pin 1 ground, Ring pin 3-, and tip pin 2
Input to Satellite ampliers when in Aux mode.
Basic 2 – way mode Independant Satellite mode
3. Aux 1&2 inputs
2. L&R Line Through
Use this Male XLR parallel output to route the
incoming line signal to other line level inputs
such as powered speakers or into Aux 1&2
inputs for alternative set-up congurations.
4. L & R input volume control
When Aux is engaged L + R input volume
controls drive Satellite ampliers outputs from
Aux inputs.

7
Frequency response+/- 3dB 44 Hz - 80-200Hz
Axial sensitivity 1W@lm 99dB
Maximum SPL @lm 129dB
Subwoofer amplier lx 660 W RMS / Class AB
Sat & Mid/High Unit amp 200 W RMS @ 8 ohms / Class AB
Connections 2x XLR in, 2x lack MIC IN 2xXLR OUT,
2x Speakon® Satellite outa
Subwoofer lx 15”
Height 21.4in/545mm
Width 17.7in/450mm
Depth 25in/635mm
Weight 106. 71b/48.5kg
QM 1000A
Specications

1000A User Manual
8
1. Stereo full range sub
satellite mode
This is the most common conguration for a
performer who is using the system as a stereo
full range playback for live or pre recorded
music.
In this conguration, the input volume control
acts as a master volume for the whole system
and the subwoofer control is post the input/
master.
Common system
conguration set ups
1 Right and left input XLR/Phono.
Connnect to mixer output
2 Line / Aux input selector. Select line to
engage stereo Sub/Satellite mode.
3 Master Volume. Set master volume to OdB
(max) for most mixer gain sensitivities.
4 Speaker outputs. Connect satelite
speakers L + R.
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Note:
High Cut for adjustment of the upper bass cross-over
frequency for the Sub bass amplier set to below 100
Hz for low bass, above 125 for a higher range of bass
frequencies.
Subwoofer volume. To control sub bass volume level.
By increasing input volume and adjusting subwoofer
volume, a balance the satellite speakers and the sub
bass cn be achieved

9
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2. Sub + independent stereo
mode with alternative
passive speakers
This conguration allows the operator to connect
alternative satellite speakers and reset the cross-
over frequencies from full range to 80 Hz or 120
Hz depending on the type of satellite speaker the
operator wishes to use. Completely independent
volume control of the satellite speakers is also
possible in this mode
The input mode switch
This switch congures the QM 1000 mid/high unit
for use through the Aux1 & 2 Volume controls.
Select full-range mode for 12” speakers, 80 Hz for
10” and 8” speakers or select a higher crossover
frequency for lower powered satellite speaker
boxes under 150 watts RMS.
The Aux volume controls will now function
independently from the master volume control.
1 Set Input mode switch to AUX.
2 Select volume to max.
3 Connect right and left XLR outputs to AUX
input 1 and 2 with XLR patch leads.
4 Select the low cut lter AUX 1 and 2 to full
range/80Hz/125Hz depending on your choice
of satellite speakers. 8” speakers function
best with the high pass lter set to 80 or
125Hz. 10” speakers should be set to 125Hz.
12” speakers can be set to 80Hz or full range.
5 Aux 1 and 2 volume now controls the output
level of each auxillery amplier.
6 High cut ajusts the cross-over frequency of
the sub bass set below 100Hz for low bass
seperation from satellite speakers.
7 Normal Sub Rev Sub bass phase/polarity
reversal switch. Some brands of speaker
boxes are wired reverse polarity to the
standard. When using speakers of a different
brand to Quest Engineering you may operate
this switch to see which setting sounds best
with your speakers. If not sure, leave “in
phase”
8 Sub woofer volume. To ajust volume level of
sub bass, operate the control knob.
9 Speaker outputs. Connect speakers. Do
not allow speaker output left and right to
be connected together when connecting
multiple speakers.
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1000A User Manual
10
Installation and wiring options
Sub bass + powered speaker front-of-house
+ 2 channels fold-back
When the operator wishes to use powered full range speakers, this conguration allows the QM
1000 to provide sub bass enhancement while also allowing 2 channels of separate fold-back. Two
fold-back monitor speakers per channel can be connected.
Select the input mode switch to Aux
This switch congures the QM 1000 mid/high unit for use through the Aux1 & 2 Volume controls
as independent fold-back ampliers. Select full-range mode. Fold-back speakers placed on
the oor will have a natural increase in bass response. For clean vocal reproduction, it may be
necessary to select the 80Hz or 120 Hz crossover to “clean up”
the vocal frequency response.
The Aux volume controls will now function independently from the master volume control.

11
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1 Left and right mixer output to L and
R main input
2 select input mode to AUX
3 Connect XLR line level through
output to powered speaker inputs
4
Connect mixer fold-back auxillary
outputs to QM1000 AUX input 1 and 2
5 AUX volume 1 and 2 now control
speaker output volume level
6 Connect fold-back speakers to Left
and Right speaker outputs.
2x8 ohm speakers can be
connected in parralel per output
Powered Speakers
Mixer
DC12
DC 10
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1000A User Manual
12
Mono satellite speakers
+ 1 channels fold-back
Two 200 watt (8 ohm) satellite ampliers in the
QM 1000 makes it possible to connect the two
front of house speakers to one speaker output
channel and the second output channel can be
used as a single channel monitor system.
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Front of house connections
1 Connect mixer output to Right input
2 Switch input mode to AUX
3 connect Right XLR line level output
to AUX 1 input.
Set low cut lter to 80Hz
4 Aux volume #1 becomes FOH satellite
master volume
5 Adjust sub woofer volume to set sub
woofer output
6 Connect FOH satelite speakers to
Right speaker output *see note
Fold-back monitor connections
7 Connect MIxer Auxillery output
to AUX input 2
8 AUX Volume #2 becomes the
fold-back master
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13
Related products
and accessories
QM15-DWB Dolly Wheel Board
QM WSB Mounting Bracket
QM15 Transit Cover
QM 108
QM 10DC
QM 12DC
Additional speakers to suit QM 1000A
Accessories

1000A User Manual
14
Trade secrets
Quest Engineering instant
sound guy course
How to avoid distortion in your system
Whether you are starting with one microphone
two turntables and an iPod, or a 48 channels of
live band, the audio principles are the same. If
you introduce distortion to any part of the audio
chain, it will still be there at the end of the line
(your speakers).
A small audio system may only be a sound source,
a mixer and a amplier/speaker combination. A
slightly bigger one may have added to the chain,
DI boxes, digital effects, compressors, equalizers
and electronic cross-overs. Any of these units that
have excessive input level will pass on distortion
to all the following equipment in the chain.
It follows that all the individual units must have
their input and output levels operating within their
designed operational range. A mixer output meter
that is showing + 9 dB at the end of the “red bars”,
only to be pushing a compressor/limiter to limit
10dB is only going to sound bad, not get louder.
When you look at a Vu meter on a mixer (Vu
means voltage units), you will see a row of
numbers with a minus (-) sigh in front of them
leading to a “0dB” on the right hand side. The
“0” means you have hit full power. After that, you
are heading into distortion country. How much
distortion will depend on a number of factors
but it is enough to say that by the time you get to
the end of the red, your mixer is now a distortion
box and sooner or later you are going to “fry”
something.
What is Line Level?
For the purposes of live sound, line level is a
signal standard made up by a group of engineers
many years ago to set a common agreement of
how much voltage a preamplier should output,
in order to drive a power amplier to full power
without going into distortion itself. The standard
varies a little between countries but it is generally
agreed that for our purposes, 0.775 volts of
preamp signal will drive an amplier to full power.
In some countries, this standard is 1 volt. Let’s
say, 0.775 volts is “0” dB on your Vu (voltage units)
meter. Every dB you send that pointer or red bar
over 0dB you are testing the headroom of the
system.
Calibrating your system for maximum
power output.
It follows that your mixer and amplier may
have different standards of what we call “0dB”
(remember the 0.775 and 1volt variation between
some countries). One test you can do is to set
up and turn on your audio system and after you
have sound, unplug your speakers and play some
music. Turn up the mixer until your ampliers
start to “clip” a little with regular ashes of the
clip lights with the beat. So long as the clip lights
don’t stay on for more than a ash, you have
reached the practical limits of your system as far
as output power is concerned. Take note where
this setting is on your mixer. Now you know how
much “headroom” your system has. Also check
any other equipment that may be in the line such
as EQ units to make sure they are not deep in the
“red”. Now adjust your input and output levels so
that your mixer is not at the end of the red bars
or the pointer on the Vu meter is not hard over
into the red.
Now turn down the system and plug the speakers
back in. This method of calibrating the system is
not totally accurate but it is a good start. If your
nd system is not loud enough after this test,
go and get more speakers and ampliers.
A distorting sound system may sound louder,
but it won’t live long.

15
How not to turn a mixer into a distortion
generator.
To avoid overloading the pre amp inputs, always
operate the master volume at a high level and
control the volume from the input volume. The
ideal situation is to have all the components of
the audio chain operating at the same operational
range. Do not run the system with the mixer
“peaking in the red” while the box is turned down.
Also do not operate the system with the input
peaking (red overload light on or ashing) and the
master volume turned down.
Red lights ashing on a mixer indicate distortion.
If you have a mixer with the facility to show you
the input level on a meter, for example then you
push a CUE/PFL button, set the input level to
below the level of the red end of the LED ramp.
If you run the row of red lights to the end of the
ramp you will cause distortion at the very start of
the pre amplier stage of the mixer. At this point
it will sound dirty and “zzy” regardless of how
good the rest of your sound system is. The rest of
the system will be reproducing a distorted sound.
If you need more volume, turn down the input
signal so it is out of the red and turn up the output
of the mixer.
Buzzes and noises in the sound system.
Getting rid of unwanted noises is a study in itself.
Most of the noise, (apart from undesir¬able
program) will fall into three categories.
 This is the hiss that suggests that
the gain structure is set incorrectly. Something in
the signal chain is boosting too much or an input
is set too sensitive. If your equipment has gain
switches on it, set them all the same. If the switch
is labelled +4dB, set them all to that gure. If one
piece of equipment seems to be overloading, set
them all to -10/-20dB and be prepared to boost
the input level of the QSA input. The last unit in the
chain should be set to +4 dB at the output stage if
possible when connected to a line level input.
 This is often caused by
noise from the power leads being picked up by
the audio signal cables. The preferred solution is
to connect up your system with “balanced” XLR
microphone cables. Especially if you are running
the cables a long distance, (more than 5m /15 Ft).
The other solution is to make sure that your audio
cables are as far from power cables as possible.
 Sometimes you can experience a hum
and buzz together. A buzz is almost always a
problem with the “earthing” of the system. It will
often occur when you have the system powered
from separate power outlets in the same building
or audio and lighting sharing a common power
circuit. Even when the audio and lighting systems
are powered from separate sources, there can
still be a common earth between them. For
example, a smoke machine may be powered from
the lighting system, yet the trigger mechanism
could be connected to the audio system through
the audio multi-core/snake. An earth connection
between the audio and lighting will now exist and
a buzz could be amplied in the audio system. The
simple solution is to power your audio circuit and
everything connected to it from the same source.
If the buzz persists, check your signal cables, one
may have an earth/shield disconnected.
A cheap but possibly life saving investment is a
domestic power tester to check that the power
supply sockets are correctly wired. Faulty or
incorrectly wired power is a booby trap that is
more common than you think.
It is wise to avoid switching on or off devices
in the signal path while the speaker system is
powered and turned up. Otherwise loud clicks
and bangs could result. When shutting down the
system, always turn the speakers off rst. This is
to prevent the speaker amplifying the sound of the
other equipment in the chain being shut down.
The reverse is true when powering up. Mixers
and effects on rst, power ampliers or powered
speakers on last.

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