Adam Sub15 User Manual [de]
Sub15
Operation Manual / Bedienungsanleitung
English / Deutsch
Safety Instructions
Please read the following safety instructions before setting up your system.
Keep the instructions for subsequent reference. Please take notice of 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.
Check if the specified voltage matches the voltage of the power supply you use.
If this is not the case do not connect the subwoofer to a power source! Please
contact your local dealer or national distributor.
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.
Protect the cord from being walked on or pinched.
Always switch off your entire system before connecting or disconnecting any
cables, or when cleaning any components.
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Safety Instructions
To completely disconnect from AC mains, disconnect the power supply from the
AC receptacle.
Always use fully checked cables. Defective cables can harm your speakers. They
are a common source for any kind of noise, hum, crackling etc.
The Subwoofer should be installed near the socket outlet and disconnection of
the device should be easily accessible.
Assure free airflow behind the subwoofer to maintain sufficient cooling.
Never use flammable or combustible chemicals for cleaning audio components.
Never expose this product to extremely high or low temperatures. Never
operate this product in an explosive atmosphere.
Avoid touching the speaker membrane and do not block the woofer’s ventilation
ports.
Please note that the sub’s driver builds up a magnetic field. Do not ply with
magnetic items at close range to the diaphragm of the woofer.
High SPLs may damage your hearing! Please do not get close to loudspeakers
when used at high volumes.
Always unplug sensitive electronic equipment during lightning storms.
Always keep electrical equipment out of the reach of children.
Sub15 Manual / English
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Table of contents
Safety Instructions .............................................2-3
1. Introduction .......................................................5
2. Quick Start ........................................................6
2.1 Important information for setup.........................6
2.2 Quick Start ........................................................6
3. Connecting the Subwoofer ................................7
3.1 Connections ......................................................7
3.2 Input ..................................................................7
3.3 Satellite Out .......................................................7
3.4 Sub Out .............................................................7
4. Subwoofer Placement ........................................8
4.1 Distance to satellites .........................................8
4.2 Walls/Distance to walls .....................................8
4.3 Finding the optimum position ............................8
5. Controls .............................................................9 -10
5.1 LEDs on front panel ...........................................9
5.2 Controls on rear panel .......................................9-10
6. Trouble Shooting ................................................11
6.1 No or distorted signal ........................................11
6.2 Parasitic noises .................................................11
7. Maintenance ......................................................12
8. Shipping / Packaging ........................................12
9. Environmental Information ................................12
10. EU Declaration of Conformity ............................13
11. Limited Warranty ...............................................14
11. 1 Terms and Conditions ........................................14
11. 2 How to claim ......................................................14
12. Technical Data ...................................................15
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1. Introduction
Dear customer,
Thank you for choosing the ADAM Audio Sub15 subwoofer.
ADAM subwoofers are built for maximum quality reproduction and audio perfection.
With the Sub15 you have selected a precise tool that allows you to both evaluate and enjoy
audio recordings. It meets highest expectations in sound quality and craftsmanship.
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 other 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.
Your ADAM Audio Team, Berlin
Sub15 Manual / English
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2. 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.
We recommend retaining 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 Sub15 to your audio components and the power source
make sure that the subwoofer, the satellite speakers and your audio source are
switched off and set the level controls to minimum.
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) Turn on your audio system and start your source of music.
e) Switch on the main on/off switch on the rear panel of the subwoofer and the
main switches of the satellite speakers where required.
f) Turn up the volume levels of your audio system and of your satellite speakers
carefully.
g) Adjust the Sub Level on the rear panel of the subwoofer to your liking.
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3. 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 Sub15s in a row as you like. The Sub
Level affects the output so that all Subs in the chain can be
levelled at once.
Sub15 Manual / English
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4. 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!
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, reflective surfaces (like walls) 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 combine their force with the first wave(s):
a vicious circle that results in local imbalances of the particular frequencies.
4.3 Finding the best 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.
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5. Controls
On the front side you will find indicator LEDs for the operating mode and
the protective circuit. Controls for the satellite filter, a phase switch 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 on front panel
There are two LEDs on the front. The upper LED
indicates the operating 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) 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 subwoofer. Depending
on the distance between woofer and satellites,
either 0° or 180° may be the better position. We
recommend trying out which position sounds better
within your system.
b) 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: 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.
Sub15 Manual / English
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5. Controls
5.2 Controls on the rear panel (continued)
c) Sub Level
In the 0dB position the signal will be passed on 1:1
to the internal amplifier. The Input Sensitivity of the
subwoofer can be adjusted from -60dB to +6dB and
thus allows for a wide volume levelling range.
d) 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 nearmidfield monitors we recommend 70 to 75Hz as the upper limit.
Please note: These settings do not have an absolute character, as different
satellites and different room acoustics lead to results that cannot be
predicted.
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