ADAM AUDIO Sub12 Active Subwoofer User Manual
- July 9, 2024
- ADAM AUDIO
Table of Contents
Sub12 Active Subwoofer
User Manual
Safety Instructions
Please read the following safety instructions before setting up your system.
Keep the instructions for subsequent reference. Please heed the warnings and
follow the instructions.
Caution
Risk of electrical shock
Do not open Risque de shock electrique Ne pas ouvrier
CAUTION: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT REMOVE BACK
COVER OR ANY OTHER PART.
NO USER-SERVICABLE PARTS INSIDE.
DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. REFER SERVICING TO QUALIFIED
PERSONNEL.
Caution: To reduce the risk of electric shock, do not open the subwoofer.
There are no user-serviceable parts inside. Refer servicing to qualified
service personnel.
This product, as well as all attached extension cords, must be
terminated with an earth ground three-conductor AC mains power cord like the
one supplied with the product. To prevent shock hazard, all three components
must always be used.
Never replace any fuse with a value or type other than those specified.
Never bypass any fuse.
Always switch off your entire system before connecting or disconnecting
any cables, or when cleaning any components.
Do not place this unit on an unstable cart, stand or tripod, bracket or table.
The unit may fall, causing serious injury and/or serious damage. When cart is
used, use caution when moving the cart/apparatus combination.
Do not expose this product to rain or moisture, never wet the inside with any
liquid and never pour or spill liquids directly onto this unit. Please do not
put any objects filled with liquids (e.g. vases, etc.) onto the speaker.
Check if the specified voltage matches the voltage of the power supply
you use. If this is not the case do not connect the loudspeakers to a power
source! Please contact your local dealer or national distributor.
Protect the cord from being walked on or pinched.
Always use fully checked cables. Defective cables can harm your
speakers. They are a common source for any kind of noise, hum, crackling etc.
Always keep electrical equipment out of the reach of children.
Always unplug sensitive electronic equipment during lightning storms.
The Subwoofer should be installed near the socket outlet and
disconnection of the device should be easily accessible.
To completely disconnect from AC mains, disconnect the power supply from the
AC receptacle. Never use flammable or combustible chemicals for cleaning audio
components.
Avoid touching the speaker membranes and do not block the woofer’s
ventilation ports.
Never expose this product to extremely high or low temperatures. Never
operate this product in an explosive atmosphere.
High SPL’s may damage your hearing! Please do not get close to the
loudspeakers when using them at high volumes.
Please note that the diaphragms build up a magnetic field. Do not ply with
magnetic items at close range to the diaphragms.
**** Assure free airflow behind the speakers to maintain sufficient cooling.
Introduction
Dear customer,
Thank you for choosing an ADAM Audio Sub12 subwoofer.
ADAM subwoofers are built for maximum quality reproduction and audio
perfection.
With the Sub12 you have selected a powerful and precise tool that allows you
to both evaluate and enjoy audio recordings. It meets highest expectations in
sound quality and craftsmanship.
The Sub12 is a powerful subwoofer designed to extend the low frequency
capabilities of any near or midfield monitoring and is an ideal match for ADAM
monitors such as the AX- or the SX-Series.
This manual is intended to provide you with information about your new ADAM
subwoofer.
It contains important information regarding safety, setting up, handling, and
warranty. We request that you read these sections carefully to ensure easy set
up and prevent potential problems.
If you have any questions about this or any of our products, please don’t
hesitate to contact us – we will be happy to assist you.
For detailed information concerning ADAM’s technologies and products, complete
reviews, and a list of worldwide ADAM users and studios, please visit our
website: www.adam-audio.com
You are invited to share your experience with our products by joining us on
Facebook and also, if you don’t want to miss out on the latest info on ADAM
Professional Audio, come and follow us on Twitter!
We hope very much that you really enjoy your new subwoofer and wish you many
delightful hours with it.
The ADAM Audio Team
Quick Start
2.1 Important Information for set up
After having unpacked your subwoofer, please allow the system to acclimate to
the temperature of the room for approximately an hour.
The subwoofer should be positioned on a firm ground.
When setting up your subwoofer, please make sure to attach the black
protective plugs to the subwoofer’s feet in order to prevent damage of your
floor surfacing. For hard floors there are also felt pads provided that can be
sticked to the underside of the protective plugs. We recommend that you retain
the original packaging, as it is the best way to guarantee safe transportation
should the need to do so arise.
Please note that the subwoofer will take some break-in time to achieve optimum
sonic performance.
2.2 Quick Start
a) Before connecting the subwoofer to your audio components and the power
source make sure that the subwoofer, the loudspeakers and your audio source
are switched off and set the level controls fully counterclockwise.
b) Choose your preferred connection as described under 3.
c) Check if the specified voltage matches the voltage of the power supply you
use.
If this is not the case do not connect the loudspeakers to a power source!
Please contact your local dealer or national distributor.
If the voltages match, use the included power cables to connect the
loudspeaker to the AC sockets.
d) Switch on the main on/off switches on the rear panel of the subwoofer.
e) Make sure that the line out level (volume) of your stereo is either at a
low level or all the way off. Then, switch on your audio system.
f) Turn on your source of music and adjust the volume carefully.
Connecting the Subwoofer
3.1 Connections
On the rear side of the speaker you can find balanced (XLR) and unbalanced
(RCA) connectors. For professional use the XLR connectors will be the first
choice.
3.2 Input
Connect the left and right line-level signal
from your signal source (audio interface, mixer, etc.) to the LEFT and RIGHT
INPUT jacks. Use either XLR (balanced) or RCA (unbalanced) cables. 3.3
Satellite Out
Connect the LEFT and RIGHT SATELLITE OUT jacks to the inputs of the left and
right main powered speakers or the inputs of the amps powering the main
speakers. 3.4 Sub Out
This balanced output mirrors the input signal enabling you to daisy-chain as
many Sub12s in a row as you like. The Sub Level affects the output, so that
all Subs in the chain can be levelled at a time. Instead of having one huge
subwoofer it often is advisable to incorporate a few smaller ones in the setup
to avoid standing waves at very low frequencies. This always needs a little
bit of testing, since it is not possible to predict the behaviour of a
subwoofer in unknown acoustical conditions.
Subwoofer Placement
It is common knowledge that low frequencies (below about 100Hz) are non-
directional, meaning they can hardly be located by the listener. It is,
however, a common misunderstanding that therefore the placement of a subwoofer
does not matter. It does matter. Due to the fact that every room (geometry,
furniture, etc.) is unique, the following descriptions intend to be a first
introduction to the subject. The aim is to assist you tackling the most common
problems with subwoofers and room acoustics, notably interference and standing
waves.
4.1 Distance to satellites
In most set ups it is advisable to place the subwoofer not too far from the
satellites to minimize the chance of Interferences. Interference means the
superposition of two or more waves resulting in an attenuation/cancellation or
enhancement of the specific frequency/frequencies. Furthermore, big refelexion
faces in close range of the subwoofer should be avoided if possible.
4.2 Walls/Distance to walls
Generally, every wall in relative close distance to the subwoofer enhances its
sound pressure by about 6 dB. For instance, placing the subwoofer in a corner
of a room will make it about 18 dB louder. It is likely that this will result
in an impairment of the precision of the musical reproduction. Another problem
related to the geometrics of the room concerns the so called ‘standing waves’.
These are sound waves being reciprocated between reflecting objects, so they
‘stand’ (don’t seem to move) in between these objects. The speaker continues
to produce new waves that combines its force with the first wave(s): a vicious
circle that results in local imbalances of the particular frequencies.
4.3 Finding the optimum position
Give it a try! The most important tool for finding the best position for your
subwoofer are your ears. There are two rather easy ways: You can determine
your listening spot first and then compare the sound of the subwoofer at
different positions. Another option is to place the subwoofer at the listening
position and then move around. Whereever the sound is the best the subwoofer
should be positioned.
Controls
On the front side you will find Indicator LEDs for the operating and standby
modes. Controls for the satellite filter, phase switch, signal on/continous
mode and Sub Level/Filter are located on the rear panel of the subwoofer. The
following tips are intended to assist you at using the controls in the best
manner.
5.1 LEDs
There are two LEDs on the front indicating either operating or standby
mode. In case the subwoofer receives an overload the lower LED will flash red
indicating the function of the protective circuit. ****
5.2 Controls on the rear panel
a) Mode
This push button allows you to choose between
- Signal On: woofer starts operation as soon as a musical signal arrives, and stops after 15 minutes without a signal.
- Continuous: the unit is permanently working. We recommend the ”Signal on” position. It minimises power consumption and makes handling very easy.
b) Subwoofer Phase
With the Phase Switch you can alter the phase of the subwoofer relative to the
satellites. That means to change the polarity of the bass unit. Depending on
the distance between woofer and satellites, either 0° or 180° may be the
better position. We recommend to try out what position sounds better within
your system.
Controls
5.2 Controls on the rear panel (continued)
c) Satellite Filter
The satellites in a system can be driven full range or with a 85 Hz high pass
as recommended by Dolby® laboratories for use in surround setups.
Recommendation: If possible the main signal should go into the Subwoofer.
Connect your satellites to the Subwoofer output, either via XLR symmetrical or
RCA asymmetrical. In many cases, clarity and dynamic range of the speakers can
be improved if they do not reproduce very low frequencies since they do not
have to deliver big amplitudes.
Please note: If you alter the frequency it is advisable to check if an
alteration of the phase improves the sound quality.
d) Sub Level
This controls the Input Sensitivity from -60dB to +6dB relative to 775mV when
used via the balanced XLR input or relative to 250mV when used via the
unbalanced Cinch (RCA) input. e) Sub Filter
The upper frequency limit of the unit is variable and can be set to any value
between 50 and 150Hz. The 85Hz marker indicates the recommendation of Dolby®
labs for surround sound settings. In practice a slightly lower crossover
frequency delivers tighter bass response, for typical near-midfield monitors we
recommend a 12 or 11 clock position, meaning 70 to 75Hz as upper limit or, to
be more exact, -3dB point in the frequency response.
Please note: These settings do not have a precise character, as different
satellites and different room acoustics lead to results that cannot be
predicted.
Troubleshooting
All ADAM products are designed and manufactured to the highest quality
standards.
However, if any problems with your subwoofer occur, we recommend to proceed as
follows:
6.1 Problem: The LED shows normal operation (green) but there is either no or
only a distorted audio signal.
Check the volumes of both the subwoofer and your signal source.
Check the wiring. Is the cable defective? Are all cables connected correctly?
If possible, check with new cables.
Connect the subwoofer as directly to the signal source as possible (please
mind the volume!). Is another part of the signal path (e.g. mixer, audio
source) defective?
6.2 Problem: You hear parasitic noises (like humming, buzzing, soughing,
cracking).
Please disconnect the signal cables. If the noises disappear, check the signal
path.
Make sure that all cables are properly connected, especially the signal cable
between the preamp/mixing console/etc. and the sub.
If the noises can still be heard, check for other electrical devices close to
the speakers (mobile phones, switching power supplies, etc.). If there is no
interfering device the subwoofer will probably cause the problem.
Maintenance
Please switch the subwoofer off before cleaning!
Please note that the diaphragms build up a magnetic field. Do not ply with
magnetic items at close range to the diaphragms.
Please make sure that no liquids get inside the cabinet. Do not spray any
fluids on the speaker. Do not use a wet cloth for cleaning.
Do not use flammable or acidic chemicals for cleaning.
Do not touch the membrane of the subwoofer.
We recommend using a lint-free, damp cloth for cleaning. The woofer membrane
may be dusted using a very soft brush.
Shipping / Packaging
In case you have to send your speakers to any other location, it is of vital
importance that you use the original packaging materials. Experience has
shown that it is very difficult to avoid damage if you have to send them
without these. ADAM Audio can not be held responsible for damages due to
improper packaging.
Environmental Information
All ADAM products comply with international directives on the Restriction of
Hazardous Substances (RoHS) in electrical / electronicalequipment and the
disposal of Waste Electrical / Electronic Equipment (WEEE).
For disposal, please consult your local authorities for further information.
EU Declaration of Conformity
We,
ADAM Audio GmbH
Rudower Chaussee 50, 12489 Berlin, Germany whose registered office is situated
at
Ederstr. 16, 12059 Berlin, Germany declare under our sole responsibility that
the product:
Sub12
complies with the EU Electro-Magnetic Compatibility (EMC) Directive
89/336/EEC, in pursuance of which the following standards have been applied:
EN 61000-6-1 : 2001
EN 61000-6-3 : 2001
EN 55020 : 2002
EN 55013 : 2001
and complies with the EU General Product Safety 2001/95/EC, in pursuance of
which the following standard has been applied:
EN 60065 : 2002.
This declaration attests that the manufacturing process quality control and
product documentation accord with the need to assure continued compliance.
The attention of the user is drawn to any special measures regarding the use
of this equipment that may be detailed in the owner’s manual.
Christian Hellinger
Managing Director ADAM Audio GmbH Sven Schmöle
Managing Director ADAM Audio GmbH
Warranty
ADAM Audio GmbH provides a five year limited warranty for this product.
11.1 Terms and Conditions
This warranty is limited to the repair of the equipment or, if necessary,
the replacement of parts or the product and return shipping within the country
of purchase. This warranty complements any national/regional law obligations
of dealers or national distributors and does not affect your statutory rights
as a customer.
Neither other transportation, nor any other costs, nor any risk for removal,
transportation and installation of products is covered by this warranty.
Products whose serial number have been altered, deleted, removed or made
illegible are excluded from this warranty.
The warranty will not be applicable in cases other than defects in materials
and/or workmanship at the time of purchase and will not be applicable:
a) for damages caused by incorrect installation, connection or packing,
b) for damages caused by any use other than correct use described in the user
manual,
c) for damages caused by faulty or unsuitable ancillary equipment,
d) if repairs or modifications have been executed by an unauthorized person,
e) for damages caused by accidents, lightning, water, fire heat, public
disturbances or any other cause beyond the reasonable control of ADAM Audio.
112 How to claim repairs under warranty
Should service be required, please contact the ADAM Audio dealer where the
product has been purchased.
If the equipment is being used outside the country of purchase, the
international shipping costs have to be paid for by the owner of the product.
Service may be supplied by your ADAM Audio national distributor in the country
of residence. In this case, the service costs have to be paid for by the owner
of the product whereas the costs for parts to be repaired or replaced are free
of charge.
Please visit our website to get the contact details of your local distributor.
To validate your warranty, you will need a copy of your original sales invoice
with the date of purchase.
Technical Data
1 = long term IEC 265-8-Wrms / 10 min
2 = nominal IEC 265-8 = Peak Power 5 µsec
Subwoofer | 310 mm / 12“ |
---|---|
Voice coil ø | 50 mm / 2“ |
Woofer material | coated paper |
Built-in amplifiers | 1 |
Subwoofer channel 1/2 | 22 Hz – 150 Hz |
Frequency response | ≤ 1% |
THD >60 Hz | ≥ 115 dB |
Max. peak | 50 – 150 Hz |
Crossover frequency | XLR / RCA |
Inputs | 10 kΩ |
Input impedance | 26 kg / 57.3 lb. |
Weight | 200 W / 300 W |
Height x Width x Depth | 600 x 360 x 450 mm / 23.5“ x 14“ x 17.5“ |
Warranty | 2 years |
Operating temperature | 0° C to 40° C (32° F to 104° F) |
Storage temperature | -30° C to 70° C (-22° F to 167° F) |
Humidity | Max. 90 % not condensing |
Notes……………
ADAM AUDIO GMBH
BERLIN, GERMANY
T +49 30-863 00 97-0
F +49 30-863 00 97-7
INFO@ADAM-AUDIO.COM
ADAM AUDIO UK
EMAIL: UK-INFO@ADAM-AUDIO.COM
ADAM AUDIO USA INC.
EMAIL: USA-INFO@ADAM-AUDIO.COM
www.adam-audio.com
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Sub12 Manual. Version 04.2015 English.
All data subject to change without prior notice.
References
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