audiophony GOA MTsub12A User manual

USER GUIDE
10078 - June 2013 - Version 1.0
Amplified subwoofer - 12" - 400W RMS

MTsub12A - Amplified subwoofer - 12" - 400W RMS
Page 2
English
Sound levels
Our audio solutions deliver important sound
pressure levels (SPL) that can be harmful
to human health when exposed during long
periods. Please do not stay in close proximity
of operating speakers.
1 - Safety information
This symbol signals an important safety
precaution. The CAUTION symbol signals a risk of product deterioration.
The WARNING symbol signals a risk to the user’s physical integrity.
The product may also be damaged.
Important safety information
Symbols used
Any maintenance procedure must be performed by a CONTEST
authorised technical service. Basic cleaning operations must tho-
roughly follow our safety instructions.
This product contains non-isolated electrical components. Do not
undertake any maintenance operation when it is switched on as
it may result in electric shock.
This unit is intended for indoor use only. Do not use it in a wet,
or extremely cold/hot locations. Failure to follow these safety ins-
tructions could result in fire, electric shock, injury, or damage to
this product or other property.
WARNING : This unit contains no user-serviceable parts. Do not open the
housing or attempt any maintenance by yourself. In the unlikely even your unit
may require service, please contact your nearest dealer.
In order to avoid any electrical malfunction, please do not use any multi-socket,
power cord extension or connecting system without making sure they are
perfectly isolated and present no defect.
Recycling your device
• As HITMUSIC is really involved in the environmental cause, we only commercialise clean, ROHS compliant products.
• When this product reaches its end of life, take it to a collection point designated by local authorities. The separate collection and recycling of your
product at the time of disposal will help conserve natural resources and ensure that it is recycled in a manner that protects human health and the
environment.
Risk of electrocution
To prevent the hazard of electric shocks, do not use
extension cords, multi-socket or any other connection
system without making sure metal parts completely are
out of reach.

MTsub12A - Amplified subwoofer - 12" - 400W RMS
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Instructions and recommendations
12 - Cleaning precautions :
Unplug the product before attempting any cleaning
operation. This product should be cleaned only with
accessories recommended by the manufacturer.
Use a damp cloth to clean the surface. Do not
wash this product.
13 - Long periods of non use :
Disconnect the unit’s main power during long periods of
non use.
14 - Liquids or objects penetration :
Do not let any object penetrate this product as it may result
in electric shock or fire.
Never spill any liquid on this product as it may infiltrate the
electronic components and result in electric shock or fire.
15 - This product should be serviced when :
Please contact the qualified service personnel if :
- The power cord or the plug has been damaged.
- Objects have fallen or liquid has been spilled into
the appliance.
- The appliance has been exposed to rain or water.
- The product does not appear to operate normally.
- The product has been damaged.
16 - Inspection/maintenance :
Please do not attempt any inspection or
maintenance by yourself. Refer all servicing to
qualified personnel.
17 - Operating environment :
Ambient temperature and humidity: +5 - +35°C,
relative humidity must be less than 85% (when
cooling vents are not obstructed).
Do not operate this product in a non-ventilated,
very humid or warm place.
1 - Please read carefully :
We strongly recommend to read carefully and understand
the safety instructions before attempting to operate this unit.
2 - Please keep this manual :
We strongly recommend to keep this manual with the unit for
future reference.
3 - Operate carefully this product :
We strongly recommend to take into consideration every
safety instruction.
4 - Follow the instructions:
Please carefully follow each safety instruction to avoid any
physical harm or property damage.
5 - Avoid water and wet locations :
Do not use this product in rain, or near washbasins or other
wet locations.
6 - Installation :
We strongly encourage you to only use a
fixation system or support recommended by
the manufacturer or supplied with this product.
Carefully follow the installation instructions and
use the adequate tools.
Always ensure this unit is firmly fixed to avoid
vibration and slipping while operating as it may result in
physical injury.
7 - Ceiling or wall installation :
Please contact your local dealer before attempting any ceiling
or wall installation.
8 - Ventilation :
The cooling vents ensure a safe use of this product,
and avoid any overheating risk.
Do not obstruct or cover these vents as it may
result in overheating and potential physical injury or
product damage. This product should never been
operated in a closed non-ventilated area such as a flight case
or a rack, unless cooling vents are provided for the purpose .
9 - Heat exposure :
Sustained contact or proximity with warm surfaces may cause
overheating and product damages. Please keep this product
away from any heat source such as a heaters, amplifiers, hot
plates, etc...
10 - Electric power supply :
This product can only be operated according to a very specific
voltage. These information are specified on the label located
at the rear of the product.
11 - Power cords protection:
Power-supply cords should be routed so that they
are not likely to be walked on or pinched by items
placed upon or against them, paying particular
attention to cords at lugs, convenience receptacles
and the point where they exit from the fixture.

MTsub12A - Amplified subwoofer - 12" - 400W RMS
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English
3 - Rear panel
Checking the package contents
The package must contain the following articles:
Your MTSUB12A
The user guide
1 CEE power cord
Installation
• Install your subwoofer over a plane area.
• Please make sure to install your subwoofer in a properly ventilated place, unexposed to sunlight rays,
excessive temperatures or humidity.
2 - Preparation
4
3
5 6 7
8
9
12

MTsub12A - Amplified subwoofer - 12" - 400W RMS
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6XOVER
Cutoff frequency control knob.
Use this knob to adapt the cutoff frequency of your
subwoofer to your broadband speakers.
7LEVEL
Allows you to adjust level output of your subwoofer.
This can be set at maximum, however make sure not
to exceed a 0dB volume output via your mixing desk to
ensure optimal sound quality.
8SAT LOW CUT
Allows you to adjust the cutoff frequency of "BALANCED
OUTPUTS".
Position it onto 80Hz or 125Hz if you need your
subwoofer only to amplify low frequencies.
9BALANCED OUTPUTS
Balanced male XLR outputs.
Use these outputs to send the incoming signal to your
satellites.
Signals going through these outputs are not amplified
nor affected by the LEVEL control knob.
Activate the SAT LOW CUT function for the signal to be
filtered at the selected frequency (80Hz or 125Hz).
1Power input socket
Connect here the supplied power cord.
Please only use this power cord or an equivalent one.
2Power button
Please turn the LEVEL knob to 0 before activating your
subwoofer.
3BALANCED INPUTS
Balanced female XLR inputs.
Connect here your mixing desk or any other line-level
source.
4UNBALANCED INPUTS
Unbalanced female RCA inputs.
Connect here your mixing desk or any other line-level
source.
When using long runs of cables, please use the balanced
inputs aforementioned in order to avoid parasitic noises.
5PHASE
Phase inverter switch.
The phase inversion is especially useful when using
several subwoofers simultaneously.
Depending on the position of your subwoofers, low
frequencies might cancel each other. use the phase
inverter to fix this.
4 - Technical specifications
• Total power output: 400 W RMS / 800 W Max
• Switched-mode power supply unit
• Frequency response: 50 Hz to 180 Hz
• Sound Pressure Level: 124 dB max
• Woofer: 12”, 4 Ohms, 400 W RMS
• 1 Line-level stereo input via XLR and RCA
• 1 Line-level stereo input via XLR
• Volume settings
• Subwoofer cutoff frequency: 80 to 180 Hz
• Low-pass filter (OFF-80-125) for satellites output
• Phase correction: 0-180°
• Protections: SC, thermal and limiter
• Cubic plywood housing with bass reflex and integral grille
• 2 side handles
• 36mm mounting plate for stands (on top)
• Dimensions: 469 x 489 x 360 mm
• Net weight: 21,6 kg

MTsub12A - Amplified subwoofer - 12" - 400W RMS
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Powered speaker
Subwoofer
Mixing desk
Powered speaker
Powered speaker
Subwoofer
Mixing desk
Powered speaker
5 - Standard installation
Installation 1
Your signal is sent from your mixing desk to your
subwoofer, then sent to your speakers.
Installation 2
Your signal is sent from your mixing desk to your
speakers, then sent to your subwoofer.

MTsub12A - Amplified subwoofer - 12" - 400W RMS
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6 - Notes

Because AUDIOPHONY® takes the utmost care in its products to make sure you only get the best possible quality, our products are
subjects to modifications without prior notice. That is why technical specifications and the products physical configuration might differ
from the illustrations.
Make sure you get the latest news and updates about the AUDIOPHONY® products on www.audiophony.com
AUDIOPHONY® is a trademark of HITMUSIC S.A. - Zone Cahors sud - 46230 FONTANES - FRANCE