Definitive Technology DESCEND DN12BK User manual

Besoin d’un conseil ? Une question sur ce produit ?
RDV sur la communauté SAV Darty : https://sav.darty.com
Déjà 1/2 million de solutions grâce à l’avis des utilisateurs.
DEFINITIV
TECHNOLOGY
ENCEINTE HOME
CINEMA
DN12
MANUEL D’UTILISATION

DESCEND™
Owner’s Manual
DN12 and DN15 Subwoofers

English ...............................................3
Español............................................21
Français............................................40

3
OWNER’S MANUAL
English
Welcome
Thank you for choosing a Definitive Technology
Descend subwoofer. In order to ensure that you
experience the finest performance possible, we
encourage you to take a moment to fully read this
owner’s manual and familiarize yourself with the
proper installation and setup procedures for your
subwoofer. Enjoy!
Contents
Safety Precautions .......................................................4
Getting to Know Your Subwoofer ..............................9
Getting Started..........................................................10
Positioning the Subwoofer .......................................11
AC Mains (Power) Connection..................................12
Connection and Setup ..............................................13
Adjusting and Using the Descend Subwoofer........15
Subwoofer Low-Pass Filter Guide ............................18
Specifications.............................................................18
Service ........................................................................19
Limited Warranty .......................................................20

4
English
Safety Precautions
1. The lightning flash with arrowhead symbol within
an equilateral triangle is intended to alert the
user to the presence of non-insulated “dangerous
voltage” within the product’s enclosure that may
be of sufficient magnitude to constitute a risk of
electric shock.
• CAUTION: To reduce the risk of electric shock,
do not remove cover (or back), as there are no
user-serviceable parts inside. Refer servicing to
qualified personnel.
• The exclamation point within an equilateral
triangle is intended to alert the user to
the presence of important operating and
maintenance instructions in the literature
accompanying the appliance.
2. Correct disposal of this product. This
marking indicates that this product should
not be disposed with other household wastes
throughout the EU. To prevent possible
harm to the environment or human health from
The exclamation point within an equilateral triangle is intended
to alert the user to the presence of important operating and
maintenance (servicing) instructions in the literature
accompanying the appliance.
CAUTION
RISK OF ELECTRIC SHOCK!
DO NOT OPEN!
uncontrolled waste disposal, recycle it responsibly
to promote the sustainable reuse of material
resources. To return your used device, please use
the return and collection systems or contact the
retailer where the product was purchased. They can
take this product for environmental safe recycling.
3. CAUTION: To reduce the risk of fire or electric shock,
do not expose this apparatus to rain or moisture.
The apparatus shall not be exposed to dripping or
splashing and that objects filled with liquids, such as
vases, shall not be placed on apparatus.
4. WARNING: The battery (battery or batteries or
battery pack) shall not be exposed to excessive heat
such as sunshine, fire or the like.
5. Read these instructions.
6. Keep these instructions.
7. Heed all warnings.
8. Follow all instructions.
9. Do not use this apparatus near water.
10. Clean only with a dry cloth.
11. Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions.
12. Do not install near any heat sources such as
radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
Please see additional Safety Precautions on the
following page.

5
OWNER’S MANUAL
English
13. No naked flame sources, such as lighted
candles, should be placed on the apparatus.
14. Class I construction should be connected to a mains
socket outlet with a protective earthing connection.
15. Do not defeat the safety purpose of the
polarized or grounding plug. A polarized plug
has two blades with one wider than the other.
A grounding plug has two blades and a third
grounding prong. The wide blade or the third prong
is provided for your safety. If the provided plug does
not fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
16. Protect the power cord from being walked on or
pinched particularly at the plugs, convenience receptacles,
and at the point where they exit from the apparatus.
17. Use only attachments/accessories specified by
the manufacturer.
18. Use only with the cart, stand, tripod,
bracket, or table specified by the manufacturer,
or sold with the apparatus. When a cart or rack
is used, use caution when moving the cart/apparatus
combination to avoid injury from tip-over. The speaker
may tip over, causing serious personal injury or death.
19. Unplug the apparatus during lightning storms
or when unused for long periods of time.
20. Refer all servicing to qualified personnel. Servicing
is required when the apparatus has been damaged
in any way, such as when power supply cord or plug
is damaged, when liquid has been spilled or objects
have fallen into the apparatus, when the apparatus
has been exposed to rain or moisture, does not
operate normally, or has been dropped.
21. CAUTION: Danger of explosion if battery is
incorrectly replaced. Replace only with the same or
equivalent type.
22. The battery (battery or batteries or battery pack)
shall not be exposed to excessive heat such as
sunshine, fire or the like.
23. WARNING: Do not recharge non-rechargeable
batteries.
24. WARNING: The mains plug/appliance coupler
is used as the disconnect device. The disconnect
device shall remain readily operable.
25. CAUTION: To completely disconnect this
product from the mains, disconnect the plug from
the wall socket outlet. The mains plug is used to
completely interrupt the power supply to the unit
and must be within easy access by the user.
26. The equipment can be used at a maximum
ambient temperature of 113 °F (45 °C).
Safety Precautions (continued)
Please see additional Safety Precautions on the
following page.

6
English
FCC Information (For US Customers)
1. Compliance Information
This product complies with Part 15 of the FCC
Rules. Operation is subject to the following two
conditions: (1) this product may not cause harmful
interference, and (2) this product must accept any
interference received, including interference that
may cause undesired operation.
2. Important Notice: Do Not Modify This Product.
This product, when installed as indicated in the
instructions contained in this manual, meets FCC
requirements. Modification not expressly approved
by Sound United may void your authority, granted
by the FCC, to use the product.
3. NOTE:This product has been tested and found
to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FFC Rules. These limits are
designed to provide reasonable protection against
harmful interference in a residential installation.
This product generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful
interference to radio communications. However,
there is no guarantee that interference will not occur
in a particular installation. If this product does cause
harmful interference to radio or television reception,
which can be determined by turning the product OFF
and ON, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment
and receiver.
• Connect the product into an outlet on a circuit
different from that to which the receiver is
connected.
• Consult the local retailer authorized to distribute
this type of product or an experienced radio/TV
technician for help.
Notes on Use
• Avoid high temperatures.
• All for sufficient heat dispersion when installed in
a rack.
• Handle the power cord carefully.
• Hold the plug when unplugging the cord.
• Keep the unit free from moisture, water, and dust.
• Unplug the power cord when not using the unit
for long periods of time.
• Do not obstruct the ventilation holes.
• Do not let foreign objects into the unit.
• Do not let insecticides, benzene, and thinner
come in contact with the unit.
• Never disassemble or modify the unit in any way.
• Ventilation should not be impeded by covering
the ventilation openings with items such as
newspapers, tablecloths or curtains.
Safety Precautions (continued)
Please see additional Safety Precautions on the
following page.

7
OWNER’S MANUAL
English
• Naked flame sources such as lit candles should
not be placed on the unit.
• Observe and follow local regulations regarding
battery disposal.
• Do not expose the unit to dripping or splashing fluids.
• Do not place objects filled with liquids, such as
vases, on the unit.
• Do not handle the mains cord with wet hands.
• When the switch is in the OFF (STANDBY)
position, the equipment is not completed
switched off from MAINS.
• The equipment shall be installed near the power
supply so that the power supply is easily accessible.
• Do not keep the battery in a place exposed to
direct sunlight or in places with extremely high
temperatures, such as near a heater.
• Do not bend forcedly the plug on the equipment
for the connection between the connector and
micro USB/USB cable.
• CAUTION (for amplifier):
HOT SURFACE. DO NOT TOUCH.
The top surface over the internal heat sink
may become hot when operating this product
continuously. Donot touch hot areas, especially
around the “Hot surface mark” and the top panel.
Safety Precautions (continued)
Cautions on Using Batteries
• WARNING: DO NOT INGEST BATTERY—
CHEMICAL BURN HAZARD. The remote control
supplied with this product contains a coin/button
cell battery. If the coin/button cell battery is
swallowed, it can cause severe internal burns in
just 2 hours and can lead to death. Keep new and
used batteries away from children. If the battery
compartment does not close securely, stop using
the product and keep it away from children. If
you think batteries may have been swallowed
or placed inside any part of the body, seek
immediate medical attention.
• Insert the specified batteries in the remote control
unit.
• Replace the batteries with new ones if the set
does not operate even when the remote control
unit is operated close to the unit. (The supplied
batteries are only for verifying operation. Replace
them with the new batteries at an early date.)
• When inserting the batteries, be sure to do so in
the proper direction, following the + and – marks
in the battery compartment.
Please see additional Safety Precautions on the
following page.

8
English
• To prevent damage or leakage of battery fluid,
– Do not use a new battery together with an old
one.
– Do not use two different types of batteries.
– Do not attempt to change dry batteries.
– Do not short-circuit, disassemble, heat, or
dispose of batteries in flames.
– Do not keep the batteries in a place exposed
to direct sunlight or in places with extremely
high temperatures, such as near a heater.
• If the battery fluid should leak, carefully wipe the
fluid off the inside of the battery compartment
and insert new batteries.
• Remove the batteries from the remote control unit
if it will not be in use for long periods.
• Used batteries should be disposed of in
accordance with local regulations regarding
battery disposal.
• The remote control unit may function improperly if
rechargeable batteries are used.
• Explosion risk exists if the battery is replaced by
an incorrect type.
For California Customers Only
This product contains a battery that contains
perchlorate material—special handling may apply.
See https://dtsc.ca.gov/perchlorate/
Safety Precautions (continued)
EU Declaration of Conformity
Hereby, Sound United, LLC declares that our product
is in compliance with the following EU/EC Directives:
• EMC:2014/30/EU
• LVD:2014/35/EU
• RoHS: 2011/65/EU and amendment Directive (EU)
2015/863
• ErP: EC regulation 1275/2008 and its frame work
directive 2009/125/EC including amendment
801/2013
EU importer/contact:
Sound United Europe, a division of D&M Europe B.V.
Beemdstraat 11, 5653 MA
Eindhoven, The Netherlands
UKCA Declaration of Conformity
Hereby, Sound United, LLC declares that our
product is in compliance with the following
UK regulations:
• Electrical Equipment (Safety) Regulations
2016
• Electromagnetic Compatibility Regulations 2016
• The Restriction of the Use of Certain Hazardous
Substances in Electrical and Electronic
Equipment Regulations 2012
• Eco design for Energy-Related Products
Regulations 2010
UK Importer: D&M Audiovisual Ltd.
Cells 1 & 2 Kopshop, 6 Old London Road
Kingston Upon Thames KT2 6QF UK

9
OWNER’S MANUAL
English
Getting To Know Your Subwoofer
RIGHT
+
–
A
BC D
G
E
F
IH
K
J
L
M
+
–
LEFT
+
–
N O P
A VOLUME UP/DOWN BUTTON
BINTELLIGENT PHASE CONTROL
BUTTON
C EQ BUTTON
D DISPLAY BRIGHTNESS BUTTON
ELOW PASS FILTER UP/DOWN
BUTTON
F LED POWER INDICATOR
G AUTO/ON/12V 3-WAY SWITCH
H IR IN
I 12V TRIGGER
J LINE IN
K HIGH LEVEL INPUT (LEFT/RIGHT)
L LFE IN
M SERVICE PORT ONLY
N POWER ON/OFF SWITCH
O FUSE (T6.3AL / 250V)
P AC POWER INLET
+
–

10
English
Getting Started
1. Plug in the subwoofer to the wall outlet and
power up the subwoofer using the power switch on
the amplifier panel.
2. Set the volume to the V20 setting on the front
panel display.
3. Set the low-pass control according to the chart
on page 18.
Pro Tip: Low pass frequency is usually set too high
in most systems, especially if the speakers you are
using don’t have an additional high pass filter being
applied. Chances are you can lower the low pass
frequency on your subwoofer.
4. If you are using an audio processing unit that
has a built-in room correction function, follow the
instructions for that process.
5. If you are not using a piece of equipment that
has built-in room correction, follow step 6 below
using multiple media sources (music, movies, TV),
and tune the volume of the subwoofer to match the
volume of your set of speakers.
6. Tune the low-pass setting on your subwoofer
according to the amount of “High-Bass” or “Low-
Midrange” signal being produced by your system. If
the media sounds “muddy”, “chesty”, or “boomy”,
turn down the low pass frequency until your system
sounds even. If the media’s low end sounds “thin”,
“detached”, or “uneven”, turn up the low pass
frequency until your system sounds even.

11
OWNER’S MANUAL
English
Positioning the Subwoofer
Room Layout for Optimal Listening Experience
TV
Potential
Subwoofer
Locations
Left
Speaker
Right
Speaker
There are some general guidelines that you should
bear in mind when locating your subwoofer:
1. For best results, place the subwoofer on the same
side of the room as your front speakers.
2. Placement near walls and in a corner will increase
the subwoofer’s output, but the sound may be
“muddy” or “boomy.”
3. An acoustic effect called “standing waves” or
“room modes” may cause uneven bass at various
locations throughout the room. This phenomenon
is a function of the dimensions of the room and not
due to the design of the subwoofer. If there is less
bass at the main listening position than at other
areas of the room, move the subwoofer until you
hear full bass at the main listening position.
4. Moving the subwoofer even a foot or two can
dramatically change the bass output and quality.
Experiment with subwoofer placement to achieve
the highest performance.
5. The subwoofer may be placed inside a cabinet,
provided there is a clearance of at least 2 inches
(50 mm) around the front, back, sides, and top of
the subwoofer. The front of the cabinet should be
completely open or covered with open mesh grille,
screen, or cloth.

12
English
The subwoofer has a 3-position power option switch:
• Always on
• Auto on via signal (recommended)
• 12V trigger.
Please note that if you hear a noise from the speaker
when the amp powers up or down, this is normal.
The blue LED on the back panel will light up when
a signal is detected and the amplifier turns on.
The LED is red when in standby and no signal is
detected. Please note that after the cessation of a
signal, it may take up to an hour for the amplifier to
actually turn off. This is nothing to be worried about
as the amp will be in low idle mode which uses very
little power (less than 1/2 Watt).
To prevent accidental damage to your subwoofer
from overdriving the system, the subwoofer features
an internal overload protection circuit, which will
turn the subwoofer off or down when overdriven or
overheated and will then resume normal operation
after a few minutes.
AC Mains (Power) Connection

13
OWNER’S MANUAL
English
Connection and Setup
1
There are three options for connecting an input to
your subwoofer, LFE INPUT, LINE IN, and SPEAKER
LEVEL IN:
LFE INPUT SETUP
This method is recommended for home theater
systems with receivers or audio processors with
built-in bass management. Anything that is attached
to a receiver with bass management should have
the low-pass filter turned off on the subwoofer by
setting it to LFE on the digital display.
1. Power-off the amplifier/receiver and disconnect
the subwoofer from the AC socket.
2. Connect a standard RCA cable from the
subwoofer/LFE output of your receiver to the LFE
input of the subwoofer.
3. Connect the subwoofer to an AC power source
and turn it on (see page 12).
4. Start with the default volume, which is set at V20.
5. Increase the Low Pass filter setting on the subwoofer
until “LFE” appears on the subwoofer’s display.
6. Turn on the receiver’s power and access the
“speaker setup” or “speaker configuration” menu.
7. Set the subwoofer to “Yes” or “On”.
8. Set the main, center, and surround speakers’ low-
pass filters to an appropriate frequency (see page
18 for a guide).
9. For further setup, follow the instructions of the
audio processing unit, or run an automatic bass
management setup on the audio processor.
LINE IN SETUP
This method is best for systems with no LFE/
subwoofer output jack such as 2-channel systems.
1. Power-off the amplifier/receiver and disconnect
the subwoofer from the AC socket.
2. Connect standard RCA cables from the front left
and right pre-out jacks of the receiver.
3. Connect the subwoofer to an AC power source
and turn it on (see page 12).
4. Start with the default volume, which is set at V20.
5. Set low-pass filter on the subwoofer to the
appropriate frequency (see page 18 for guidance).
LFE IN
2
LINE IN

14
English
3
SPEAKER LEVEL IN SETUP (best for amps/
receivers with no LFE/subwoofer or pre-out jacks)
Note: Speaker Level In is labeled High Level Input
on the back panel of the subwoofer.
1. Power-off the amplifier/receiver and disconnect
the subwoofer from the AC socket.
2. Connect standard speaker cables from the speaker
output terminals of the amplifier/receiver. Most
amplifiers and receiver speaker terminals allow two
sets of wires to be connected to one terminal set
(one for the main speaker and one for the subwoofer).
IMPORTANT NOTE: One terminal on each channel
input is marked with a red band (+) and the other
is marked with a black band (–). Make certain that
you connect the wire from the red (+) terminal of
your amplifier or receiver to the red (+) terminal
of the subwoofer and the wire from the black (–)
terminal of your amplifier or receiver to the black (–)
terminal of the subwoofer. It is essential to connect
all speakers in the system to the amplifier in the
same way (to the correct polarity.) If you experience
poor bass, one or more of the channels may be
connected to the incorrect polarity and may need to
be rewired. Pay close attention and connect positive
to positive and negative to negative on all channels.
3. Connect the subwoofer to an AC power source
and turn it on (see page 12).
4. Start with the default volume, which is set at V20.
5. Proceed to page 15 for subwoofer adjustment
and system tweaking.
OTHER CONNECTIONS:
12 V trigger (optional): In a system utilizing 12V
control systems, connect a cable with 3.5mm tip/
ring male plugs to the 12 V trigger output of the
system’s receiver or preamp/processor for one-
button system turn-on.
IR Remote (optional): In installations where the
subwoofer is in a cabinet or otherwise blocked,
the remote will not work. Connect an IR remote
repeater eye (optional, available from most audio/
video specialty dealers) to the IR remote jack on the
subwoofer’s amplifier panel. Position the repeater
eye within clear view of your main listening position.
RIGHT
+
–
LEFT
+
–

15
OWNER’S MANUAL
English
Adjusting and Using the Descend Subwoofer
1
2
4
5
6
Remote Guide
The remote is the best tool for perfectly adjusting
your subwoofer to achieve seamless blending with
your main speakers. If you misplace your remote,
the most often used controls are duplicated on the
rear amp panel.
NOTE: If the line of sight from your listening
position to the display area of the subwoofer is
obstructed, the remote will not work. To remedy
the problem, connect an IR remote repeater eye
(optional, available from most audio/video specialty
dealers) to the IR remote jack on the subwoofer’s
amplifier panel.
The Volume, Low-Pass Filter, EQ and Phase controls
are duplicated on the amplifier panel.
1. Volume +/–: Increases/decreases the subwoofer’s
loudness. Note: The volume range goes from 0 to 40.
2. Mute: Turns off subwoofer sound.
3. Phase: Adjusts the relative phase of the output
signal. The phase can be adjusted from -135 to 180
degrees in 45-degree increments.
3
+
–
+
–
Volume Low Pass
Phase DisplayEQ

16
English
4. EQ: There are three program-specific equalization
settings: Loud, Deep, and Flat. See Selecting EQ
Modes on page 17 for more information.
5. Display Brightness: Pressing this button toggles
the display brightness. Available settings are Max,
Dim1, Dim2, and Off.
6. Low-pass filter up/down: The low-pass filter can
be adjusted from 40Hz to 150Hz. If the subwoofer is
connected via LFE, increase the low-pass filter until
“LFE” appears on the front display.
Adjusting for Best Performance
In an ideal audio system, the subwoofer works
“invisibly”, simply adding deep, loud bass without
calling attention to itself and blending seamlessly
with the main speakers so it appears that the
main speakers are making all the sound. The key
to seamless main speaker/subwoofer blending is
finding the perfect crossover frequency, equalization,
and phase settings for your system. The best place
to make those “set and forget” adjustments is from
your listening chair via the wireless remote. If your
receiver has built-in Audyssey or a similar auto setup/
room correction function, run that first. In most cases
that is all the adjustment you will need.
NOTE: The auto setup functions work best when the
subwoofer is connected to the LFE/subwoofer output.
1. Sit in your favorite listening position with remote
in hand.
2. Play a piece of music you are very familiar with
that has good deep bass content.
3. Adjust the volume up or down to taste. The bass
should have impact without sounding too “heavy.”
4. Using the Subwoofer Low-Pass Filter Guide on page
18 as a starting point, adjust the LP up or down until
there is a smooth transition between the main speaker
and subwoofer. Play a recording with male vocals and
string bass. Turn down the LP filter frequency until the
vocals sound rich but not “thick” or “chesty.” Turn it
up if the vocals sound “thin” or lacking in body.
5. Push the Phase button on the remote control to
adjust the Intelligent Phase Control setting on the
subwoofer. Then listen to how well the subwoofer
blends with your speaker system by how little you can
tell the difference of sound coming from your speakers
and subwoofer. This may also fix some unevenness in
the frequency response of your system. If you can’t
hear a difference between settings, it is recommended
that you leave the setting on 0 degrees.

17
OWNER’S MANUAL
English
6. If you notice any of the following, you may need to
adjust the subwoofer input sensitivity setting:
• ‘LIMIT’ appears regularly on the subwoofer
display.
• The subwoofer distorts at peaks in the audio
signal.
• The subwoofer volume is at the maximum setting
(40) and is still not loud enough.
To adjust the input sensitivity setting, see Changing
the Input Sensitivity Setting.
Changing the Input Sensitivity Setting
Perform the following steps to adjust the input
sensitivity setting:
1. Press and hold the Phase button on the back panel
for 5 seconds to enter Edit mode.
2. Release the button when the status indicator blinks
blue.
3. Press the Low Pass Filter Up/Down button to select
an input sensitivity setting (-12 dB, -6 dB or 0 dB will
appear on the front display).
Note: You will likely not need to change this setting
unless you are using the subwoofer with vintage or
atypical audio equipment.
4. Press and hold the Phase button on the back panel
for 5 seconds to save the setting.
5. Play content and listen to the sound to verify the
subwoofer volume is now to your liking. Readjust the
volume and input sensitivity settings as needed.
Selecting EQ Modes
The three equalization (EQ) modes are variations
in frequency response. They allow you to adjust for
program material differences. Use the setting(s) that
best suite your listening preferences.
1. Loud: This is the best setting to use when
achieving maximum volume levels with minimal
distortion. Use when volume is more important than
playing lowest frequencies.
2. Deep: This setting maximizes the deepest octave
bass response at the sacrifice of maximum volume
level. CAUTION: This setting should not be used at
high-volume levels.
3. Flat: This setting is the recommended starting
point. No changes to subwoofer EQ are applied.

18
English
Subwoofer Low-Pass Filter Guide
MAIN FRONT SPEAKER TYPE SUGGESTED SETTINGS
LARGE, FULL-RANGE FLOORSTANDING 40–100 HZ
SMALL FLOORSTANDING AND LARGE BOOKSHELF 60–100 HZ
SMALL BOOKSHELF/MINI-MONITORS/LARGE SATELLITES 80–120 HZ
SMALL SATELLITES 100–140 HZ
USING LFE FROM A RECEIVER OR PRE-AMP WITH INTERNAL BASS
MANAGEMENT LFE
MODEL DN12 DN15
DIMENSIONS 18.0 X 18.7 X 19.1 IN
(458.2 X 475.5 X 484.8 MM)
22.0 X 22.7 X 23.5 IN
(558.5 X 577.6 X 597.9 MM)
PRODUCT WEIGHT 73.1 LBS (33.2 KG) 114.6 LBS (52.0 KG)
DRIVER COMPLEMENT 12 IN WOOFER WITH
2 X 12 IN BASS RADIATOR
15 IN WOOFER WITH
2 X 15 IN BASS RADIATOR
FREQUENCY RESPONSE 17–200 HZ 12–200 HZ
Specifications

19
OWNER’S MANUAL
English
Service
Service and warranty work on your Definitive
Technology loudspeaker will normally be performed
by the Definitive Technology dealer or importer.
If, however, you wish to return the speaker to us,
please contact us first, describing the problem and
requesting proper authorization.
NOTE: Definitive phone and email technical
support is only offered in English.
Product Servicing
Please note that the address given below is the
address of our offices only. Under no circumstances
should loudspeakers be shipped to our offices or
returned without contacting us first and obtaining
return authorization.
Technical Assistance
If you have any questions, please contact the
Definitive Technology dealer or importer where you
purchased your product. If they are unable
to help you, please contact us directly.
1-800-228-7148
www.DefinitiveTechnology.com
Email: info@DefinitiveTech.com
twitter: @DefinitiveTech
US:
5541 Fermi Court
Carlsbad, CA 92008
EU :
Sound United Europe
a division of D&M Europe B.V.
Beemdstraat 11, 5653 MA Eindhoven
The Netherlands
UK:
D&M Audiovisual Ltd.
Cells 1 & 2 Kopshop 6 Old London Road
Kingston Upon Thames KT2 6QF UK
Each subwoofer leaves our plant in perfect
condition. Any visible or concealed damage most
likely occurred in handling after it left our plant
and should be reported at once to your Definitive
Technology retailer where you purchased your
product. Please unpack your system carefully. Save
all cartons and packing material in case you move
or need to ship your system.
Record the serial number found on the back of the
subwoofer.
Serial Number: _______________________________