DXS18 Owner`s Manual
Contents
1. YAMAHA Powered Subwoofer DXS 18 Introduction Thank you for purchasing the Yamaha DXS18 Powered Subwoofer Please read this manual thoroughly to ensure optimum long term use of your DXS18 Owner s Manual ZR38060 EN Features 1 020 W power and 136 dB max SPL and LF extension down to 32 Hz Powered by a 1 020 W amplifier with an 18 woofer with a 4 voice coil and housed in a sturdy band pass type enclosure the DXS18 is able to realize 136 dB maximum SPL and an extended LF down to 32 Hz with exceptional clarity and minimal distortion Flexible features e D XSUB D XSUB is a DSP technology that gives users additional dynamic control of the frequency range to meet the demands of a variety of applications or musical styles e Selectable X OVER 80 100 120 Hz Selecting the cut off frequency and LPF HPF settings offers users more flexibility to adapt to various applications e Cardioid mode The Cardioid mode setting adds additional control of low frequencies for sub woofer Keep the manual in a safe place for future reference arrays of two or more DXS18 speakers effectively reducing the SPL of bass directed towards the stage while increasing the bass levels directed towards the audience e Please read the PRECAUTIONS on the reverse side of this manual before use e The illustrations as shown in this manual are for instructional purposes only e The company names and product names used in this manual ar2. heat registers stoves or other apparatus including chaleur comme un radiateur une bouche de chaleur un amplifiers that produce heat po le ou tout autre appareil y compris un amplificateur 9 Do not defeat the safety purpose of the polarized or produisant de la chaleur grounding type plug A polarized plug has two blades 9 Ne pas modifier le systeme de s curit de la fiche polari with one wider than the other A grounding type plug has s e ou de la fiche de terre Une fiche polaris e dispose de two blades and a third grounding prong The wide blade deux broches dont une est plus large que l autre Une or the third prong are provided for your safety If the pro fiche de terre dispose de deux broches et d une troisi me vided plug does not fit into your outlet consult an electri pour le raccordement a la terre Cette broche plus large cian for replacement of the obsolete outlet ou cette troisi me broche est destin e assurer la s cu 10 Protect the power cord from being walked on or pinched rit de l utilisateur Si la fiche quipant l appareil n est particularly at plugs convenience receptacles and the pas compatible avec les prises de courant disponibles point where they exit from the apparatus faire remplacer les prises par un lectricien 11 Only use attachments accessories specified by the man 10 Acheminer les cordons d alimentation de sorte qu ils ne ufacturer soient pas pi tin s ni coinc s en faisant tou
3. side and summed together on the audience side The directional characteristics of this combination are represented in the polar pattern illustration at right Since the form resembles a heart shape it is called Stage Audience Cardioid mode side side PRECAUTIONS PLEASE READ CAREFULLY BEFORE PROCEEDING Please keep this manual in a safe place for future reference A 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 e Do not place the power cord near heat sources such as 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 e Only use the voltage specified as correct for the device The required voltage is printed on the name plate of the device e Use only the supplied power cord If you intend to use the device in an area other than in the one you purchased the included power cord may not be compatible Please check with your Yamaha dealer e Check the electric plug periodically and remove any dirt or dust which may have accumulated on it e When setting up the device make sure that the AC outlet you are using is easily accessi
4. of the device If water is left the wooden parts may absorb the water and be damaged Make sure to wipe any water off immedi ately with a soft cloth e Air blowing out of the port is normal e Always turn the power off when the device is not in use E Connectors e XLR type connectors are wired as follows IEC60268 standard pin 1 ground pin 2 hot and pin 3 cold In Norway Apparatet ma tilkoples jordet stikkontakt In Sweden Apparaten skall anslutas till jordat uttag In Finland Laite on liitett v suojamaadoituskoskettimilla varustettuun pistorasiaan class hokuo class b korea CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL The above warning is located on the rear of the unit L avertissement ci dessus est situ sur l arri re de l unit Explanation of Graphical Symbols Explication des symboles 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 L clair avec une fl che l int rieur d un triangle quilat ral est destin attirer attention de utilisateur sur la pr sen
5. 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 and the Directives 2002 96 EC By disposing of these products correctly you will help to save valuable resources and prevent any potential negative E ffects 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 weee_eu_en_01 Yamaha Pro Audio global website http www yamahaproaudio com Manual Development Department 2015 Yamaha Corporation Yamaha Downloads http download yamaha com Published09 2015 POZOA0 Printed in Indonesia
6. range speaker is connected subse quently and the high pass filter in the full range speaker is not used set this to HPF POST From mixer ii ii gt To full range speaker Stage DA To AC outlet Audience Three unit side by side placement 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 DXS18 facing to the stage side to on Make sure that the other settings LEVEL POLARITY X OVER of the units are set to the same A CAUTION When vertically stacking DXS18 units make sure they are stable and not in danger of falling over e Align the rubber feet of the upper DXS18 unit to the feet cups of the lower DXS18 e When using vertically stacked DXS18 units do not place any objects such as full range speak ers or another DXS18 on top of them or insert speaker poles 2 Ti gt To full range speaker From lower TAR DXS18 m L THROUGH To full range tE k OUTPUT 2 speaker 1 i g 0 00 dB 10 LEVEL CARDIOID On From mixer 2 ae L i From mixer THROUGH 7 a as Sa HPF POST Revel To upper OUTPUT DXS18 To CARDIOID Audience Off 1 When a full range speaker is connected subsequently 2 When a full range speaker is connecte
7. to the relevant manual for the wheels AC IN socket Connect the supplied AC power cord here First connect the power cord to the DXS18 then insert the power cord plug into the AC outlet A CAUTION Turn off the power before you connect or disconnect the power cord Q Power switch Turns the power to the unit on or off O If you are using multiple units turn on the power to each unit one by one If you turn on the power to multiple units simultaneously a tempo rary drop in the power voltage may occur possibly resulting in abnor mal operation of the units Also rapidly turning the unit on and off in succession can cause it to malfunction After turning the unit off wait for about 5 seconds before turning it on again INPUT jacks These are balanced input XLR jacks line level and this device out puts the mixed signals of L and R OUTPUT jacks These are balanced output XLR jacks for connecting full range speak ers or additional DXS18 units The output signal can be switched via the THROUGH HPF POST switch L R output from the OUTPUT jacks correspond to L R input to the INPUT jacks The mixed signal of L R is not output THROUGH HPF POST switch Switches the signals output from the OUTPUT jacks A CAUTION Make sure to lower the input level when switching e THROUGH Outputs unaffected signals from INPUT jacks Select when using HPF of the c
8. 0Hz XTD LF O CJ LJ X OVER D XSUB CARDIOID D XSUB switch Switches the low range frequency response characteristics e NORMAL A generic setting corresponding to various applications e BOOST Boosts the frequency range enhancing and providing punch to the sound e XTD LF eXTenDed LF Extends the bottom of the low frequency range CARDIOID switch Connection of multiple DXS18 units enables the use of Cardioid mode For details on Cardioid mode and using the switch refer to Setup of Cardioid Mode on the opposite page POLARITY switch Switches the polarity of the unit normal or inverted When the polarity is inverted the INVRT indicator lights In most cases this should be set to normal however the inverted set ting may improve low range response depending on the type and loca tion of the speaker system Select a setting that produces the best low end sound LIMIT indicator Lights when the output limiter is active The output limiter operates in order to protect the speaker and amplifier attenuating the output signal to the amplifier If the indicator lights frequently adjust the volume of the input source or lower the LEVEL control so that the indicator only occasionally lights at the highest input levels PROTECTION indicator Lights when the protection system is active The protection system operates and the speaker output is muted in the following situations e If ampli
9. ble 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 e Remove the electric plug from the outlet when the device is not to be used for extended periods of time or during electrical storms e Be sure to connect to an appropriate outlet with a protective grounding connection Improper grounding can result in electrical shock damage to the device s or even fire Do not open e 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 Water warning e 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 e Never insert or remove an electric plug with wet hands Hearing loss e When turning on the AC power in your audio system always turn o
10. ccess the Yamaha website then download the manual file Since specifications equipment or separately sold accessories may not be the same in every locale please check with your Yamaha dealer 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 e Input the same signal to all the DXS18 units to be used You can also use the units connected in daisy chain fashion with setting the OUTPUT jack to THROUGH e 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 DXS18 units facing in opposite directions Set the CARDIOID switch of the DXS18 facing the audience to off and that of the DXS18 facing the stage to on Make sure that the other settings LEVEL POLARITY X OVER of the units are set to the same From left From mixer DXS18 0m Q y L t E To full range Ler Post 2 speaker 4 OUTPUT CARDIOID CARDIOID Off On To right DXS18 1 When a full range speaker is connected subse quently 2 When a full
11. ce d une ten sion dangereuse non isol e l int rieur de I appareil pouvant tre suffisamment lev e pour constituer un risque d lectrocution The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and mainte nance servicing instructions in the literature accompanying the product Le point d exclamation l int rieur d un triangle quilat ral est destin attirer I attention de l utilisateur sur la pr sence d instruc tions importantes sur l emploi ou la maintenance r paration de l appareil dans la documentation fournie PR CAUTIONS CONCERNANT LA S CURIT IMPORTANT SAFETY INSTRUC TIONS 1 Read these instructions 1 Lire ces instructions 2 Keep these instructions 2 Conserver ces instructions 3 Heed all warnings 3 Tenir compte de tous les avertissements 4 Follow all instructions 4 Suivre toutes les instructions 5 Do not use this apparatus near water 5 Ne pas utiliser ce produit a proximit d eau 6 Clean only with dry cloth 6 Nettoyer uniquement avec un chiffon propre et sec 7 Donot block any ventilation openings Install in accor 7 Ne pas bloquer les orifices de ventilation Installer lappa dance with the manufacturer s instructions reil conform ment aux instructions du fabricant 8 Do not install near any heat sources such as radiators 8 Ne pas installer l appareil proximit d une source de
12. d subsequently and the high pass filter in the full range speaker is not used set this to HPF POST Set the CARDIOID switch of only the DXS18 unit facing the stage to on Set the levels of the two DXS18 units facing the audience to the same Set the level of the DXS18 unit facing to the stage approximately 6 dB greater than the DXS18 units facing the audience From center From mixer MRT DXS18 TEE L L t THROUGH cee ae 4 THROUGH To center HEF PORT oad L HPF POST DXS18 OUTPUT OUTPUT iig CARDIOL CARDIOID Off Off From mixer a4 Audience To AC outlet From left nee DXS18 C2 L t THROUGH HPF POST OUTPUT To right CARDIOID On 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 The sound of B is inverted compared to A and delayed appropriately corresponding to distance d Waveform i from A ids lt gt I A I Stage Inverted q Al S y Inverted Audience side Delayed q B g Delayed side Y A Y d Waveform from B Sound is Sound is summed lled This is the optimum state cance in which the distance d is a quarter of the wavelength r gt Stage side Audience side X os The sound of each speaker is cancelled on the stage Directional characteristics
13. e settings for each Set each switch of each speaker to the same posi speaker differ tion Lower the volume of the input device so that the PEAK indicator lights only occasionally Output volume is exces Lower the output level with the LEVEL control so that sive the LIMIT indicator lights only occasionally Input volume is excessive Sound is distorted If any specific problem should persist please contact your Yamaha dealer General Specifications DXS18 General Specifications System Type Powered subwoofer band pass type Frequency Range 10 dB 32 Hz 120 Hz Measured Maximum SPL Peak Pink Noise 1m 136 dB SPL F Rati Dynamic 1 020 W ower Ratin Power g Continuous 800 W Amplifier Power Consumption 1 8 output power 100 W Components LF 18 cone 4 voice coil Dimensions W x H x D including rubber feet 563 x 683 x 721 mm Weight 49 7 kg Handles Steel side x 2 Pole Sockets top surface 35 mm depth 80 mm M20 threaded depth 25 mm Input XLR3 31 x 2 Connectors Output XLR3 32 x 2 THROUGH or HPF POST Input Sensitivity LEVEL center 10 dBu Maximum Input Level 24 dBu The contents of this manual apply to the latest specifications as of the printing date Since Yamaha makes continuous improvements to the product this manual may not apply to the specifications of your particular product To obtain the latest manual a
14. e the trademarks or registered trade marks of their respective companies Included accessories and optional accessories Included accessories e AC power cord e Owner s manual this leaflet Technical Specifications Reliability The DXS18 features advanced protection circuits in the speaker unit amplifier unit and power supply that ensure optimum reliability and extended equipment life Durability The DXS18 s sturdy plywood cabinet is covered with an extremely durable LINE X finish that provides added protection from outside elements and duress Optional accessories e Speaker cover SPCVR 18S01 e Wheels SPW 1 4 pieces e Fast and easy setup for improved portability Controls and functions Pole sockets Adapts to commercially available speaker poles of 35 mm diameter and M20 screws For detail on installing speaker poles refer to Installing a Speaker Pole Feet cups When stacking multiple DXS18 units align the rubber feet of the upper DXS18 unit to the feet cups of the lower A CAUTION Do not stack more than two DXS18 units Front LED Turns on when the power is on Lights more brightly when the output limiter is active Using FRONT LED DISABLE switch enables you keep the LED always off O Wheel mounting holes Optional SPW 1 wheels can be installed to the holes For details on installing the wheels or special precautions you should take please refer
15. elf may damage your back result in other injury or cause damage to the device itself If you use the pole socket on the subwoofer for mounting of a satellite speaker use a speaker of 28 kg 61 7 Ibs or less in weight and 76 cm 29 9 or less in height Also use a speaker pole no longer than 120cm 47 2 Use of any other size pole may cause the device to fall and result in injury or damage to the internal components Connections e 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 electric shock hearing loss or equipment damage Maintenance e Remove the power plug from the AC outlet when cleaning the device Handling caution e Do not insert your fingers or hands in any gaps or openings on the device ports e 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 e Do not rest your weight on the device or place heavy objects on it and avoid use excessive force on the buttons switches or connectors to prevent injuries Yamaha cannot be held responsible for damage caused by improper use or modificatio
16. es objets sont tomb s l int rieur WARNING de l appareil si l appareil a t expos la pluie ou de Vhumidit si l appareil ne fonctionne pas normalement ou est tomb TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOIS TURE AVERTISSEMENT POUR R DUIRE LES RISQUES D INCENDIE OU DE DECHARGE LECTRIQUE N EXPOSEZ PAS CET APPA REIL LA PLUIE OU LHUMIDITE UL60065_03 UL60065_03 FCC INFORMATION U S A 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 tions not expressly approved by Yamaha may void your authority granted by the FCC to use the product 2 IMPORTANT When connecting this product to accessories 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
17. f the low pass filter of the DXS18 set this to HPF POST to use the high pass filter in the DXS18 Combination and setting examples Using the high pass filter in the connected full range speaker Using the high pass filter in the DXS18 HPF HPF Full range speaker Full range speaker 700Hz 4 l OFF I 100Hz From DXS18 4 THROUGH tis mixer HPF POST D e De X OVER X OVER A CAUTION If multiple powered speakers are connected in daisy chain fashion turn each device on in sequence starting from the one nearest to the sound source and turn them off starting from the one farthest from the sound source Combination of monaural DXS18 and stereo full range speakers Full range speaker Full range speaker From mixer To full range speaker Combination of stereo DXS18 and stereo full range speakers NOTE The L and R jacks are interchangeable there is no difference in behavior between them From mixer Full range speaker Full range speaker Installing a Speaker Pole The pole sockets of the DXS18 are compatible with commercially available speaker poles of 35 mm diame ter and M20 screws M20 screw Installing Wheels Installing optional wheels SPW 1 at the back of
18. fier overheating is detected e If overcurrent is detected e Immediately after turning the power on The protection system is activated to prevent noise and the indicator lights for about two sec onds The indicator turns off when the power supply has started nor mally POWER indicator Lights when the power is on FRONT LED DISABLE switch Turns the FRONT LED at the front of the unit on or off The LED lights when this switch is set to off Turn this switch on to disable the LED Input the output signal from a source such as a mixer to the INPUT jack of the DXS18 and input the out put signal from the OUTPUT jack of the DXS18 to the input jack of a full range speaker e X OVER switch It is recommended that you match the crossover frequency the cutoff frequency of the low pass filter of the DXS18 and the cutoff frequency of the high pass filter of the full range speaker The same fre quency range output from the DXS18 and the full range speaker may cause interference with each other and degrade the frequency characteristics THROUGH HPF POST switch If the full range speaker is properly equipped with a high pass filter you should set this to THROUGH The THROUGH setting enables you to control the level independently and minimize signal delay If the full range speaker is not equipped with a high pass filter or the high pass filter in the full range speaker cannot be set to the same cutoff frequency as that o
19. ht accidentally fall over and cause injuries When installing the device Make sure the top surface faces up do not install on its sides or upside down Do not use the device in a confined poorly ventilated location Inadequate ventilation can result in overheating possibly causing damage to the device s or even fire Make sure that there is adequate space around the heat sink of the amplifier on the back of the device at least 30 cm above 30 cm at the sides and 30 cm behind Do not use the speaker s handles for suspended installation Doing so can result in damage or injury Do not hold the bottom of the device when transporting or moving it In doing so you may pinch your hands under the device and result in injury Do not press the rear panel of the device against the wall Doing so may cause the plug to come in contact with the wall and detach from the power cord resulting in short circuiting malfunction or even fire Do not place the device in a location where it may come into contact with corrosive gases or salt air Doing so may result in malfunction Avoid being near the device during a disaster such as an earthquake Since the device may turn over or fall and cause injury stay away from the device quickly and move to a safe place Before moving the device remove all connected cables When transporting or moving the device always use three or more people Attempting to lift the device by yours
20. n the device LAST to avoid hearing loss and speaker damage When turning the power off the device should be turned off FIRST for the same reason Fire warning e Do not place any burning items or open flames near the device since they may cause a fire If you notice any abnormality e f 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 Unusual smells or smoke are emitted 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 e f this device should be dropped or damaged immediately turn off the power switch disconnect the electric plug from the outlet and have the device inspected by qualified Yamaha service personnel 1 N CAUTION Always follow the basic precautions listed below to avoid the possibility of physical injury to you or others or damage to the device or other property These precautions include but are not limited to the following Power supply power cord e When removing the electric plug from the device or an outlet always hold the plug itself and not the cord Pulling by the cord can damage it Location e Do not place the device in an unstable position where it mig
21. ns to the device PA_en_6 NOTICE To avoid the possibility of malfunction damage to the product damage to data or damage to other property follow the notices below m Handling and maintenance e Do not use the device in the vicinity of a TV radio stereo equipment mobile phone or other electric devices Otherwise he device TV or radio may generate noise internal components impregnated wiping cloths e 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 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 Condensation can occur in the device due to rapid drastic changes in ambient temperature when the device is moved rom 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 During extreme changes in temperature or humidity condensation may occur and water may collect on the surface
22. onnected speaker or connecting addi tional DXS18 units e HPF POST Outputs signal input from INPUT jacks after pass ing through a HPF The cutoff frequency of the high pass filter is the frequency specified with the X OVER switch Because the out put level from the OUTPUT jacks is linked to the LEVEL control the levels of this unit and the full range speaker change simulta neously D PEAK indicator Lights red when the input level reaches 3 dB below clipping If the indi cator lights frequently adjust the volume of the input source or lower the LEVEL control so that the indicator flashes only briefly at the highest input levels LEVEL control Adjusts the output level X OVER switch Specifies the crossover frequency at 120 Hz 100 Hz or 80 Hz The output from the unit is processed through a low pass filter to cut the range of the selected frequency or higher When setting THROUGH HPF POST switch to HPF POST the output signals from the OUTPUT jacks are processed through a high pass filter to cut the range of the selected frequency or lower and the crossover frequency is linked to that of the connected speaker M20 and 35 dual pole sockets allow for more flexible set up while optional casters are also available YAMAHA DXS18 PEAK 0 Oumit PROTECTION Power FRONT LED 00GB 10 DISABLE INVAT LEVEL 120Hz O normal _ 100Hz BOOST POLARITY 8
23. t sp ciale 12 Use only with the cart stand tripod bracket or table specified by the manu facturer or sold with the apparatus When 1 a cart is used use caution when moving the cart apparatus combination to avoid e 1 injury from tip over 13 Unplug this apparatus during lightning storms or when unused for long periods of time ment attention aux fiches prises de courant et au point de sortie de l appareil Utiliser exclusivement les fixations et accessoires sp ci fi s par le fabricant Utiliser exclusivement le chariot le stand le tr pied le support ou la table recom mand s par le fabricant ou vendus avec cet appareil Si l appareil est pos sur un N 14 Refer all servicing to qualified service personnel Servic chariot d placer le chariot avec pr cau ing is required when the apparatus has been damaged in tion pour viter tout risque de chute et de blessure any way such as power supply cord or plug is damaged 13 D brancher l appareil en cas d orage ou lorsqu il doit res liquid has been spilled or objects have fallen into the ter hors service pendant une p riode prolong e apparatus the apparatus has been exposed to rain or 14 Confier toute r paration un personnel qualifi Faire moisture does not operate normally or has been r parer l appareil s il a subi tout dommage par exemple dropped si la fiche ou le cordon d alimentation est endommag si du liquide a coul ou d
24. the DXS18 enables you to transport the unit easily To install the wheels use the screws installed in the DXS18 unit after removing them from the unit Please do not use the speaker once the screws are removed This causes air leaks to occur in enclosure resulting in undesirable performance A CAUTION e For details on installing the wheels or special precautions you should take please refer to the relevant manual for the wheels Do not install wheels other than the SPW 1 Troubleshooting Symptom Possible causes Possible solution The power cord is not con nected properly The protection system has been activated shutting down the power supply The cable is not con nected properly The protection circuit has Wait until the amplifier cools down If the unit doesn t been activated muting the automatically reset itself turn off the power and then output on again Sound howls feed A microphone is directed Keep the speaker away from the area where the back toward the speaker microphone picks up the sound The sound from each speaker differs if multi ple speakers are used Power does not turn on Connect the power cord properly Power suddenly turned off Turn off the power wait until the amplifier cools down and then turn on again No sound Connect the cable to the INPUT jack properly Sound is interrupted suddenly Th
25. 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 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 This applies only to products distributed by YAMAHA CORPORATION OF AMERICA class B Information for Users on Collection and Disposal of Old Equipment This symbol
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