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Yamaha DXS18 Owner's Manual page 2

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Setup of Cardioid Mode
Because directivity in the low frequency range is weak, the output sound from the subwoofer diffracts not
only toward the audience but also to the stage in almost the same sound pressure. By using the Cardioid
mode, bass to the audience is summed up and bass to the stage is canceled. This suppresses the bass volume
on the stage, providing a greater allowance before howling, and provides more powerful bass for the audi-
ence.
NOTE
• Use the same model and input signal for the DXS. You can also use the units connected in daisy chain
fashion with setting the OUTPUT jack to [THROUGH].
• To obtain the optimum Cardioid characteristics, locate the cabinet away from walls by more than 1.2 m.
Two-unit, side-by-side placement
Place the two DXS units facing in opposite directions. Set the CARDIOID switch of the DXS facing the
audience to off, and that of the DXS facing the stage to on. Make sure that the other settings (LEVEL,
POLARITY, X-OVER) of the units are set the same.
From left
From mixer
DXS
To right
To full-range
*2
DXS
speaker
*1
Off
*1 When a full-range speaker is connected subse-
quently.
*2 When a full-range speaker is connected subse-
quently and the high pass filter in the full-range
From mixer
speaker is not used, set this to [HPF POST].
To full-range speaker
Stage
To AC outlet
Audience
Two-unit, vertically stacked placement
You can also construct a system for Cardioid mode by vertically stacking two units. Set the CARDIOID
switch of the DXS facing to the stage side to on. Make sure that the other settings (LEVEL, POLARITY, X-
OVER) of the units are set the same.
CAUTION
• When vertically stacking DXS units, make sure they are stable and not in danger of
falling over.
• Align the rubber feet of the upper DXS unit to the feet cups of the lower DXS.
• When using vertically stacked DXS units, do not place any objects (such as full-range
speakers or another DXS) on top of them or insert speaker poles.
To full-range speaker
From lower
DXS
To full-range
*2
speaker
*1
To AC outlet
From mixer
From mixer
Stage
To upper
DXS
Audience
*1 When a full-range speaker is connected subsequently.
*2 When a full-range speaker is connected subsequently and
the high pass filter in the full-range speaker is not used, set
this to [HPF POST].
2
Three-unit, side-by-side placement
Set the CARDIOID switch of only the DXS unit facing the stage to on. Set the levels of the two DXS units
facing the audience to the same. Set the level of the DXS unit facing to the stage approximately 6 dB greater
than the DXS units facing the audience.
From center
From mixer
DXS
To center
DXS
Off
From mixer
On
To AC outlet
Audience
From left
DXS
To right
DXS
About Cardioid mode
The distance between a speaker (A) facing to the audience sound source speaker and another speaker (B)
facing to the stage is defined as d. A delay is applied to the sound from speaker B, equivalent to distance d.
Waveform
from A
d
Reverse
Stage
A
polarity
side
delay
B
d
Waveform
from B
Sound is
cancelled
On
Stage side
Off
Directional characteristics
The sound of each speaker is cancelled on the stage
side and summed together on the audience side. The
directional characteristics of this combination are
represented in the polar pattern illustration at right.
Stage
Since the form resembles a heart shape, it is called
side
Cardioid mode.
PRECAUTIONS
PLEASE READ CAREFULLY BEFORE
PROCEEDING
Please keep this manual in a safe place for future
reference.
WARNING
Always follow the basic precautions listed below
to avoid the possibility of serious injury or even
death from electrical shock, short-circuiting,
damages, fire or other hazards. These precautions
include, but are not limited to, the following:
Power supply/power cord
• Do not place the power cord near heat sources such as
Off
heaters or radiators, and do not excessively bend or
otherwise damage the cord, place heavy objects on it, or
place it in a position where anyone could walk on, trip
over, or roll anything over it.
• Only use the voltage specified as correct for the device.
The required voltage is printed on the name plate of the
device.
• Use only the supplied power cord/plug.
If you intend to use the device in an area other than in the
Stage
one you purchased, the included power cord may not be
compatible. Please check with your Yamaha dealer.
• Check the electric plug periodically and remove any dirt
or dust which may have accumulated on it.
• When setting up the device, make sure that the AC outlet
you are using is easily accessible. If some trouble or
malfunction occurs, immediately turn off the power switch
and disconnect the plug from the outlet. Even when the
power switch is turned off, as long as the power cord is
not unplugged from the wall AC outlet, the device will not
be disconnected from the power source.
Remove the electric plug from the outlet when the
device is not to be used for extended periods of time, or
during electrical storms.
Be sure to connect to an appropriate outlet with a
protective grounding connection. Improper grounding
can result in electrical shock, fire, or damage.
Do not open
• This device contains no user-serviceable parts. Do not
open the device or attempt to disassemble the internal
parts or modify them in any way. If it should appear to be
malfunctioning, discontinue use immediately and have it
inspected by qualified Yamaha service personnel.
On
Water warning
• Do not expose the device to rain, use it near water or in
damp or wet conditions, or place on it any containers
(such as vases, bottles or glasses) containing liquids
which might spill into any openings. If any liquid such as
water seeps into the device, turn off the power
immediately and unplug the power cord from the AC
outlet. Then have the device inspected by qualified
Yamaha service personnel.
• Never insert or remove an electric plug with wet hands.
Hearing loss
• Do not use the device for a long period of time at a high or
uncomfortable volume level, since this can cause
permanent hearing loss. If you experience any hearing
loss or ringing in the ears, consult a physician.
• Before connecting the device to other devices, turn off the
power for all devices. Also, before turning the power of all
devices on or off, make sure that all volume levels are set
to the minimum. Failing to do so may result in hearing
loss, electric shock, or device damage.
• When turning on the AC power in your audio system,
Reverse
always turn on the device LAST, to avoid hearing loss and
Audience
polarity
speaker damage. When turning the power off, the device
side
delay
should be turned off FIRST for the same reason.
Fire warning
• Do not place any burning items or open flames near the
device, since they may cause a fire.
If you notice any abnormality
• If any of the following problems occur, immediately turn
off the power switch and disconnect the electric plug from
the outlet.
- The power cord or plug becomes frayed or damaged.
Sound is summed
- Unusual smells or smoke are emitted.
* This is the optimum state,
in which the distance d is a
NOTICE
quarter of the wavelength.
To avoid the possibility of malfunction/damage to the product, or damage to other property, follow the notices below.
 Handling and maintenance
• Do not use the device in the vicinity of a TV, radio, AV equipment, mobile phone, or other electric devices. Otherwise, the
device, TV, or radio may generate noise.
• Do not expose the device to excessive dust or vibration, or extreme cold or heat (such as in direct sunlight, near a heater,
or in a car during the day), in order to prevent the possibility of panel disfiguration, unstable operation, or damage to the
internal components.
• Do not place vinyl, plastic or rubber objects on the device, since this might discolor the panel.
• When cleaning the device, use a dry and soft cloth. Do not use paint thinners, solvents, cleaning fluids, or chemical-
impregnated wiping cloths.
• Condensation can occur in the device due to rapid, drastic changes in ambient temperature—when the device is moved
from one location to another, or air conditioning is turned on or off, for example. Using the device while condensation is
present can cause damage. If there is reason to believe that condensation might have occurred, leave the device for sev-
eral hours without turning on the power until the condensation has completely dried out.
• When placing the speaker face down, always place it on a flat surface.
• Do not touch the speaker driver unit.
Audience side
• Air blowing out of the ports is normal.
• Always turn the power off when the device is not in use.
 Connectors
• XLR-type connectors are wired as follows (IEC60268 standard): pin 1: ground, pin 2: hot (+), and pin 3: cold (–).
Information
 About this manual
• The illustrations as shown in this manual are for instructional purposes only.
• The company names and product names in this manual are the trademarks or registered trademarks of their respective
Audience
companies.
side
 About disposal
• This product contains recyclable components. When disposing of this product, please contact the appropriate local
authorities.
In Finland: Laite on liitettävä suojamaadoituskosketti-
milla varustettuun pistorasiaan.
In Norway: Apparatet må tilkoples jordet stikkontakt.
In Sweden: Apparaten skall anslutas till jordat uttag.
(class I hokuo)
- Some object has been dropped into the device.
- There is a sudden loss of sound during use of the
device.
- Cracks or other visible damage appear on the device.
Then have the device inspected or repaired by qualified
Yamaha service personnel.
• If this device should be dropped or damaged,
immediately turn off the power switch, disconnect the
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK,
electric plug from the outlet, and have the device
DO NOT REMOVE COVER (OR BACK).
inspected by qualified Yamaha service personnel.
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
The above warning is located on the rear of the unit.
Always follow the basic precautions listed below
to avoid the possibility of physical injury to you or
Explanation of Graphical Symbols
others, or damage to the device or other property.
Explication des symboles
These precautions include, but are not limited to,
the following:
The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated
"dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
Power supply/power cord
L'éclair avec une flèche à l'intérieur d'un triangle équilatéral est destiné à attirer l'attention de l'utilisateur sur la présence d'une « ten-
sion dangereuse » non isolée à l'intérieur de l'appareil, pouvant être suffisamment élevée pour constituer un risque d'électrocution.
• When removing the electric plug from the device or an
outlet, always hold the plug itself and not the cord. Pulling
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and mainte-
by the cord can damage it.
nance (servicing) instructions in the literature accompanying the product.
Le point d'exclamation à l'intérieur d'un triangle équilatéral est destiné à attirer l'attention de l'utilisateur sur la présence d'instruc-
Location
tions importantes sur l'emploi ou la maintenance (réparation) de l'appareil dans la documentation fournie.
• Do not place the device in an unstable position where it
might accidentally fall over and cause injuries.
IMPORTANT SAFETY INSTRUC-
• When installing the device:
- Make sure the top surface faces up; do not install on its
TIONS
sides or upside down.
- Do not use the device in a confined, poorly-ventilated
1 Read these instructions.
location.
2 Keep these instructions.
Inadequate ventilation can result in overheating, possibly
3 Heed all warnings.
causing damage to the device(s), or even fire. Make sure
4 Follow all instructions.
that there is adequate space around the device: at least
5 Do not use this apparatus near water.
30 cm above, 30 cm at the sides and 30 cm behind.
6 Clean only with dry cloth.
7 Do not block any ventilation openings. Install in accor-
• Do not use the speaker's handles for suspended
dance with the manufacturer's instructions.
installation. Doing so can result in damage or injury.
8 Do not install near any heat sources such as radiators,
• Do not hold the bottom of the device when transporting or
heat registers, stoves, or other apparatus (including
moving it. In doing so, you may pinch your hands under
amplifiers) that produce heat.
the device, and result in injury.
9 Do not defeat the safety purpose of the polarized or
• Do not press the rear panel of the device against the wall.
grounding-type plug. A polarized plug has two blades
Doing so may cause the plug to come in contact with the
with one wider than the other. A grounding type plug has
wall and detach from the power cord, resulting in short
two blades and a third grounding prong. The wide blade
circuiting, malfunction, or even fire.
or the third prong are provided for your safety. If the pro-
• Do not place the device in a location where it may come
vided plug does not fit into your outlet, consult an electri-
into contact with corrosive gases or salt air. Doing so may
cian for replacement of the obsolete outlet.
10 Protect the power cord from being walked on or pinched
result in malfunction.
particularly at plugs, convenience receptacles, and the
• Avoid being near the device during a disaster, such as an
point where they exit from the apparatus.
earthquake. Since the device may turn over or fall and
11 Only use attachments/accessories specified by the man-
cause injury, stay away from the device quickly and move
ufacturer.
to a safe place.
12 Use only with the cart, stand, tripod,
• Before moving the device, remove all connected cables.
bracket, or table specified by the manu-
• When transporting or moving the device, always use three
facturer, or sold with the apparatus. When
or more people. Attempting to pick this unit up with only
a cart is used, use caution when moving
one or two people may result in lower back injuries, or the
the cart/apparatus combination to avoid
equipment may be dropped and damaged, resulting in
injury from tip-over.
injury.
13 Unplug this apparatus during lightning storms or when
unused for long periods of time.
• Be sure to adhere to the conditions for "Installing a
Speaker Pole" when mounting the speaker on top using
14 Refer all servicing to qualified service personnel. Servic-
ing is required when the apparatus has been damaged in
the pole socket.
any way, such as power-supply cord or plug is damaged,
Tipping this unit over may break the unit, cause damage
liquid has been spilled or objects have fallen into the
to the internal parts or result in personal injury.
apparatus, the apparatus has been exposed to rain or
Maintenance
moisture, does not operate normally, or has been
dropped.
• Remove the power plug from the AC outlet when cleaning
the device.
WARNING
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
Handling caution
DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOIS-
TURE.
• Do not insert your fingers or hands in any gaps or
openings on the device (ports).
• Avoid inserting or dropping foreign objects (paper,
plastic, metal, etc.) into any gaps or openings on the
device (ports). If this happens, immediately turn off the
power unplug the power cord from the AC outlet, and
have the device inspected by qualified Yamaha service
personnel.
• Do not operate the device if the sound is distorting.
Prolonged use in this condition could cause overheating
and result in fire.
FCC INFORMATION (U.S.A.)
• Avoid pulling the connected cables to prevent injuries or
damage to the device by causing it to fall.
1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!
This product, when installed as indicated in the instructions
contained in this manual, meets FCC requirements. Modifica-
Yamaha cannot be held responsible for damage caused
tions not expressly approved by Yamaha may void your
by improper use or modifications to the device.
authority, granted by the FCC, to use the product.
2. IMPORTANT:
When connecting this product to accessories
PA_en_8
and/or another product use only high quality shielded cables.
Cable/s supplied with this product MUST be used. Follow all
installation instructions. Failure to follow instructions could
void your FCC authorization to use this product in the USA.
3. NOTE:
This product has been tested and found to comply with
the requirements listed in FCC Regulations, Part 15 for Class
"B" digital devices. Compliance with these requirements pro-
vides a reasonable level of assurance that your use of this
product in a residential environment will not result in harmful
interference with other electronic devices. This equipment gen-
erates/uses radio frequencies and, if not installed and used
according to the instructions found in the users manual, may
cause interference harmful to the operation of other electronic
devices. Compliance with FCC regulations does not guarantee
* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA.
Information for users on collection and disposal of old equipment:
This symbol on the products, packaging, and/or accompanying documents means that used electrical and electronic
products should not be mixed with general household waste.
For proper treatment, recovery and recycling of old products, please take them to applicable collection points, in
accordance with your national legislation.
By disposing of these products correctly, you will help to save valuable resources and prevent any potential negative
effects on human health and the environment which could otherwise arise from inappropriate waste handling.
For more information about collection and recycling of old products, please contact your local municipality, your waste
disposal service or the point of sale where you purchased the items.
For business users in the European Union:
If you wish to discard electrical and electronic equipment, please contact your dealer or supplier for further information.
Information on Disposal in other Countries outside the European Union:
This symbol is only valid in the European Union. If you wish to discard these items, please contact your local authori-
ties or dealer and ask for the correct method of disposal.
이 기기는 가정용(B급) 전자파적합기기로서 주로 가
Yamaha Pro Audio global website:
정에서 사용하는 것을 목적으로 하며, 모든 지역에서
https://www.yamaha.com/proaudio/
사용할 수 있습니다.
Yamaha Downloads:
(class b korea)
https://download.yamaha.com/
ATTENTION
RISQUE DE CHOC
ELECTRIQUE-NE PAS OUVRIR
ATTENTION :
POUR RÉDUIRE LES RISQUES D'ÉLECTROCUTION, NE PAS RETIRER
LE CAPOT (OU LE DOS). NE CONTIENT PAS DE PIÈCES NÉCESSITANT
L'INTERVENTION DE L'UTILISATEUR. POUR TOUTE INTERVENTION,
FAIRE APPEL À DES PROFESSIONNELS QUALIFIÉS.
L'avertissement ci-dessus est situé sur l'arrière de l'unité.
PRÉCAUTIONS CONCERNANT
LA SÉCURITÉ
1 Lire ces instructions.
2 Conserver ces instructions.
3 Tenir compte de tous les avertissements.
4 Suivre toutes les instructions.
5 Ne pas utiliser ce produit à proximité d'eau.
6 Nettoyer uniquement avec un chiffon propre et sec.
7 Ne pas bloquer les orifices de ventilation. Installer l'appa-
reil conformément aux instructions du fabricant.
8 Ne pas installer l'appareil à proximité d'une source de
chaleur comme un radiateur, une bouche de chaleur, un
poêle ou tout autre appareil (y compris un amplificateur)
produisant de la chaleur.
9 Ne pas modifier le système de sécurité de la fiche polari-
sée ou de la fiche de terre. Une fiche polarisée dispose de
deux broches dont une est plus large que l'autre. Une
fiche de terre dispose de deux broches et d'une troisième
pour le raccordement à la terre. Cette broche plus large
ou cette troisième broche est destinée à assurer la sécur-
ité de l'utilisateur. Si la fiche équipant l'appareil n'est pas
compatible avec les prises de courant disponibles, faire
remplacer les prises par un électricien.
10 Acheminer les cordons d'alimentation de sorte qu'ils ne
soient pas piétinés ni coincés, en faisant tout spécialem-
ent attention aux fiches, prises de courant et au point de
sortie de l'appareil.
11 Utiliser exclusivement les fixations et accessoires spécif-
iés par le fabricant.
12 Utiliser exclusivement le chariot, le stand,
le trépied, le support ou la table recom-
mandés par le fabricant ou vendus avec
cet appareil. Si l'appareil est posé sur un
chariot, déplacer le chariot avec précau-
tion pour éviter tout risque de chute et de blessure.
13 Débrancher l'appareil en cas d'orage ou lorsqu'il doit res-
ter hors service pendant une période prolongée.
14 Confier toute réparation à un personnel qualifié. Faire
réparer l'appareil s'il a subi tout dommage, par exemple
si la fiche ou le cordon d'alimentation est endommagé, si
du liquide a coulé ou des objets sont tombés à l'intérieur
de l'appareil, si l'appareil a été exposé à la pluie ou à de
l'humidité, si l'appareil ne fonctionne pas normalement
ou est tombé.
AVERTISSEMENT
(UL60065_03)
POUR RÉDUIRE LES RISQUES D'INCENDIE OU DE
DÉCHARGE ÉLECTRIQUE, N'EXPOSEZ PAS CET APPA-
REIL À LA PLUIE OU À L'HUMIDITÉ.
(UL60065_03)
that interference will not occur in all installations. If this product
is found to be the source of interference, which can be deter-
mined by turning the unit "OFF" and "ON" , please try to elimi-
nate the problem by using one of the following measures:
Relocate either this product or the device that is being
affected by the interference.
Utilize power outlets that are on different branch (circuit
breaker or fuse) circuits or install AC line filter/s.
In the case of radio or TV interference, relocate/reorient the
antenna. If the antenna lead-in is 300 ohm ribbon lead,
change the lead-in to co-axial type cable.
If these corrective measures do not produce satisfactory results,
please contact the local retailer authorized to distribute this type
of product. If you can not locate the appropriate retailer, please
contact Yamaha Corporation of America, Electronic Service
Division, 6600 Orangethorpe Ave, Buena Park, CA90620
The above statements apply ONLY to those products distrib-
uted by Yamaha Corporation of America or its subsidiaries.
(class B)
(weee_eu_en_02)
Manual Development Group
© 2017 Yamaha Corporation
Published 05/2018 YJMAW-B0

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