audiophony SRSUB18A User manual

USER GUIDE
10713 - February 2017 - Version 1.0
18" 600W self-powered subwoofer

SRSUB18A - 18" 600W self-powered subwoofer
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.

SRSUB18A - 18" 600W self-powered subwoofer
Page 3
English
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.

SRSUB18A - 18" 600W self-powered subwoofer
Page 4
English
2 - Introduction
The SRSUB18A was developed on the basis of the already famous SRSUB15A, it benefits from the same ergonomics, the
same design and the same functions with regard to connections and adjustments. The comparison stops here because the
SRSUB18A is equipped with a new 18-inch HP powered by a class D 600W amplifier, which allows the whole to provide
a sound pressure of 127dB. The sound quality is no exception, because this new subwoofer offers precise basses and
subbasses, deep and always punchy.
4 - Presentation
Checking the package contents
The package must contain the following articles:
Your SRSUB18A
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.
3 - Getting started

SRSUB18A - 18" 600W self-powered subwoofer
Page 5
English
1INPUT L and INPUT R
Line-level left and right inputs via COMBO sockets.
COMBO sockets allow you to either connect a mono/
stereo male XLR or male Jack plug.
These are balance inputs.
More details about connections are available further in
this guide.
2THRU L and THRU R outputs
These 3-pin XLR outputs allow you to send the incoming
signal to amplified speakers (for instance).
3LEVEL control knob
Allows you to adjust the sound output of your subwoofer.
Although you can turn it at full volume, we
recommend, to guarantee an optimal sound quality,
not to exceed 0 dB signals level on your mixing desk.
These settings do not affect THRU L and THRU R
outputs.
4Indicator LEDs
• Power: Lights up upon activation of your subwoofer.
• Signal: Lights up upon detection of an incoming
signal.
• Clip: Lights up when incoming signal levels exceed
0dB. Please make sure this LED only lights up briefly
to guarantee an optimal sound quality.
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.
6FREQUENCY control knob
Cutoff frequency control knob.
Allows you to adjust the cutoff frequency of your
subwoofer depending on the connected broadband
speakers.
75Hz is exact same cutoff frequency of SR series
amplified speakers.
If using SR12 or SR15A, this value is perfect to cover the
whole audio spectrum.
SR10A speakers will require you to slightly increase the
cutoff frequency.
These settings do not affect THRU L and THRU R
outputs.
7Fuse
Protects the power supply module of the built-in
amplifier.
If need to replace it, please make sure the new one has
the exact same characteristics.
8Voltage selector
Allows you to adapt the voltage of your subwoofer to the
electrical outlet.
9Power button
Before activating your subwoofer, please make sure the
LEVEL knob is positioned onto 0.
9Power input socket
Allows you to connect your subwoofer to an
electrical outlet via the supplied IEC power cord.
Please make sure the voltage delivered by the electrical
outlet is similar to the voltage selector positioning before
activating your device.

SRSUB18A - 18" 600W self-powered subwoofer
Page 6
English
Powered speakerPowered speaker
Subwoofer
Mixing desk
5 - Standard installation
6 - Connectors
6.1 - THRU L and THRU R outputs
These line-level balanced outputs are also compatible with unbalanced connectors.
2 = Hotspot (+)
2
3
1
3 = Coldspot (-)
1 = Ground
Balanced
2 = Hotspot (+)
2
3
1
Shunt between
1 et 3 pins
1 = Ground
Unbalanced

SRSUB18A - 18" 600W self-powered subwoofer
Page 7
English
7 - Technical specifications
Power output 600W RMS / 1200W max. - CLASS D
Frequency response 35 Hz - 150 KHz
Power supply Switched-mode power supply (SMPS)
115V/230V~50/60Hz
Filter cutoff frequency 60 ~ 150Hz KHz
SPL max 127 dB
Woofer
18''
4'' coil
8 Ohms - 800W RMS
Inputs 2 line-level right and left inputs via COMBO XLR/JACK
Outputs 2 line-level right and left XLR inputs
Settings
Main volume settings
Cutoff frequency settings
180° phase inverter
Indicators Power, Signal and Clip LEDs
Protection Short-circuits, thermal and limiter
Housing
Cubic plywood housing
4 x88 self-braking wheels
4 rubber feet
35mm mounting plate for speaker coupling rod
Dimensions 770 x 680 x 560 mm
Net weight 39 Kg
These line-level inputs via COMBO chassis allow you to receive both balanced and unbalanced signals.
They can be connected to mixing desks, synthesisers, drum machines, direct boxes, etc.
Please connect the ring to the body when connecting unbalanced sources.
6.2 - INPUT L and INPUT R
Tip
Tip Signal
Sleeve
Sleeve
Ground / Shield
Unbalanced TS
Ring
Ring
Coldspot (-)
Tip
Tip Hotspot (+)
Sleeve
Sleeve
Ground / Shield
Balanced TRS
Ring
Tip
Tip Hotspot (+)
Sleeve
Sleeve
Ground / Shield
Shunt between
ring and sleeve
Unbalanced TRS

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.S - Zone Cahors sud - 46230 FONTANES - FRANCE