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OPERATING INSTRUCTIONS MULTICHANNEL POWER AMPLIFIER DA-1000F 1. IMPORTANT SAFETY INSTRUCTIONS ........................................................................................ 2 2. SAFETY PRECAUTIONS ................................................................................................................. 2 3. GENERAL DESCRIPTION . ............................................................................................................... 5 4. NOMENCLATURE AND FUNCTIONS ............................................................................................. 5 5. CONNECTIONS ............................................................................................................................... 7 6. SYSTEM CONNECTION CASES ..................................................................................................... 8 7. THERMAL DISSIPATION ................................................................................................................ 9 8. POWER LEVEL ADJUSTMENT .......................................................................................................10 9. TROUBLESHOOTING ..................................................................................................................... 11 10. SPECIFICATIONS ............................................................................................................................12 11. DIMENSIONAL DIAGRAM ...............................................................................................................12 TABLE OF CONTENTS Thank you for purchasing TOA's Multichannel Power Amplifier. Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.

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  • OPERATING INSTRUCTIONS

    MULTICHANNEL POWER AMPLIFIERDA-1000F

    1. IMPORTANT SAFETY INSTRUCTIONS ........................................................................................ 2

    2. SAFETY PRECAUTIONS ................................................................................................................. 2

    3. GENERAL DESCRIPTION . ............................................................................................................... 5

    4. NOMENCLATURE AND FUNCTIONS ............................................................................................. 5

    5. CONNECTIONS ............................................................................................................................... 7

    6. SYSTEM CONNECTION CASES ..................................................................................................... 8 7. THERMAL DISSIPATION ................................................................................................................ 9

    8. POWER LEVEL ADJUSTMENT .......................................................................................................10

    9. TROUBLESHOOTING .....................................................................................................................11

    10. SPECIFICATIONS ............................................................................................................................12

    11. DIMENSIONAL DIAGRAM ...............................................................................................................12

    TABLE OF CONTENTS

    Thank you for purchasing TOA's Multichannel Power Amplifier. Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.

  • 1. IMPORTANT SAFETY INSTRUCTIONS Read these instructions.Keep these instructions.Heed all warnings.Follow all instructions.Do not use this apparatus near water.Clean only with dry cloth.Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.Do not install near any heat sources such as radiators, heat registers, stoves, or otherapparatus (including amplifiers) that produce heat.Do not defeat the safety purpose of the polarized or grounding-type plug. A groundingtype plug has two blades and a third grounding prong. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.Protect the power cord from being walked on or pinched particularly at plugs, conveniencereceptacles, and the point where they exit from the apparatus.Only use attachments/accessories specified by the manufacturer.Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, orsold with the apparatus. When a cart is used, use caution whenmoving the cart/apparatus combination to avoid injury from tip-over.

    Unplug this apparatus during lightning storms or when unusedfor long periods of time.Refer all servicing to qualified service personnel. Servicing is

    damaged inany way, such as power-supply cord or plug is damaged, liquid has been spilled or objectshave fallen into the apparatus, the apparatus has been exposed to rain or moisture, doesnot operate normally, or has been dropped.

    Servicing is required when the apparatus has been

    2. SAFETY PRECAUTIONSBefore installation or use, be sure to carefully read all the instructions in this section forcorrect and safe operation.Be sure to follow all the precautionary instructions in this section, which contain importantwarnings and/or cautions regarding safety.After reading, keep this manual handy for future reference.

    Safety Symbol and Message Conventions Safety symbols and messages described below are used in this manual to prevent bodily injuryand property damage which could result from mishandling. Before operating your product,read this manual first and understand the safety symbols and messages so you are thoroughly

    The exclamation point within an equilateral triangle is intended to alert the user tothe presence of important operation and maintenance (servicing) instruction inthe literature accompanying the appliance.

    aware of the potential safety hazards.

    Indicates a potentially hazardous situation which, ifmishandled, could result in death or serious personalWARNINGinjury.

    2

  • When Installing the UnitDo not expose the unit to rain or an environment where it may be splashed by water or otherliquids, as doing so may result in fire or electric shock. Use the unit only with the voltage specified on the unit. Using a voltage higher than that whichis specified may result in fire or electric shock.Do not cut, kink, otherwise damage nor modify the power supply cord. In addition, avoid usingthe power cord in close proximity to heaters, and never place heavy objects -- including the unititself -- on the power cord, as doing so may result in fire or electric shock.

    Avoid installing or mounting the unit in unstable locations, such as on a rickety table or aslanted surface. Doing so may result in the unit falling down and causing personal injury and/or

    External wiring connected to the terminals marked with requires installation by an instructed

    The apparatus shall be connected to a mains socket outlet with a protective earthing connection.

    The socket-outlet shall be installed near the equipment and the plug (disconnecting device) shallbe easily accessible.

    When the Unit is in Use Should the following irregularity be found during use, immediately switch off the power, disconnectthe powersupply plug from the AC outlet and contact your nearest TOA dealer. Make no furtherattempt to operate the unit in this condition as this may cause fire or electric shock.

    · If you detect smoke or a strange smell coming from the unit· If water or any metallic object gets into the unit · If the unit falls, or the unit case breaks · If the power supply cord is damaged (exposure of the core, disconnection, etc.)· If it is malfunctioning (no tone sounds.)

    components inside the unit. Refer all servicing to your nearest TOA dealer.

    property damage.

    person.

    To prevent a fire or electric shock, never open or remove the unit case as there are high voltage

    Do not place cups, bowls, or other containers of liquid or metallic objects on top of theunit. If they accidentally spill into the unit, this may cause a fire or electric shock.

    Do not insert nor drop metallic objects or flammable materials in the ventilation slots of theunit's cover, as this may result in fire or electric shock.

    When Installing the UnitNever plug in or remove the power supply plug with wet hands, as doing so may cause electric shock.

    When unplugging the power supply cord, be sure to grasp the power supply plug; never pullon the cord itself. Operating the unit with a damaged power supply cord may cause a fire or

    When moving the unit, be sure to remove its power supply cord from the wall outlet. Moving the unitwith the power cord connected to the outlet may cause damage to the power cord, resulting in fireor electric shock. When removing the power cord, be sure to hold its plug to pull.

    Indicates a potentially hazardous situation which, if mishandled ,could result in moderate or minor personal injury, and/or propertyCAUTIONdamage.

    electric shock.

    3

  • Do not block the ventilation slots in the unit's cover. Doing so may cause heat to build upinside the unit and result in fire.

    Avoid installing the unit in humid or dusty locations, in locations exposed to the direct sunlight,near the heaters, or in locations generating sooty smoke or steam as doing otherwise mayresult in fire or electric shock.

    To avoid electric shocks, be sure to unplug the unit's power supply cord when connecting speakers.

    Be sure to follow the instructions below when rack-mounting the unit. Failure to do so maycause a fire or personal injury.· Install the equipment rack on a stable, hard floor. Fix it with anchor bolts or take other

    arrangements to prevent it from falling down.· When connecting the unit's power cord to an AC outlet, use the AC outlet with current

    capacity allowable to the unit.· No rack-mounting screws are supplied with the unit. Separately prepare the appropriate

    screws for the rack.

    When the Unit is in Use

    Do not place heavy objects on the unit as this may cause it to fall or break which mayresult in personal injury and/or property damage. In addition, the object itself may fall off and cause injury and/or damage.

    Make sure that the volume control is set to minimum position before power is switched on.Loud noise produced at high volume when power is switched on can impair hearing.

    Do not operate the unit for an extended period of time with the sound distorting. This is anindication of a malfunction, which in turn can cause heat to generate and result in a fire.

    If dust accumulates on the power supply plug or in the wall AC outlet, a fire may result. Cleanit periodically. In addition, insert the plug in the wall outlet securely.

    Switch off the power, and unplug the power supply plug from the AC outlet for safetypurposes when cleaning or leaving the unit unused for 10 days or more. Doing otherwise may cause a fire or electric shock.

    Clean the unit regularlyContact your TOA dealer as to the cleaning. If dust is allowed to accumulate in the unitover a long period of time, a fire or damage to the unit may result.

    Clean the power supply plugIf dust accumulates on the power supply plug or in the wall AC outlet, a fire may result.Clean it periodically. In addition, insert the plug in the wall outlet securely.

    During maintenance or leaving the unit unusedTurn off this unit's power switch, and unplug the power supply plug from the AC outlet forsafety purposes when cleaning or leaving the unit unused for 10 days or more. Doingotherwise may cause a fire or electric shock.

    The lighting flash with arrowhead symbol, within an equilateral triangle, is intendedto alert the user to the presence of uninsulated "dangerous voltage" within theproduct's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

    4

  • 3. GENERAL DESCRIPTION

    The DA-1000F is 4-Channel Digital Power Amplifier featuring ligtweight, compact and high power output.It delivers 1000W x 4 channels (4 output). It can be mounted an EIA standard equipment rack (2 unit size).

    4. NOMENCLATURE AND FUNCTIONS

    [Front]

    1. Suction hole

    2. Input volume control Turn the knob clockwise to increase the volume and counterclockwise to decrease it. Stereo/Paralle Mode : volumes of CH1, CH2, CH3, CH4 control independently . Bridge Mode : CH1 knob controls both volumes, CH2 knob lose efficacy.

    CH3 knob controls both volumes, CH4 knob lose efficacy.

    3. LED indicator PROTECT : Lights red when either protection circuit action. CLIP : Lights red when compressor/limiter is protecting the amplifier from input overload. -5dB : Lights green when output signal around -5dB than full power. -10dB : Lights green when output signal around -10dB than full power. -20dB : Lights green when output signal around -20dB than full power. SIGNAL : Lights green when audio signals are output from the speaker output terminal. POWER : Lights green when the Power switch (4) is switched on.

    4. Power switch Power is switched on and off with each depression of this switch.

    5. Mounting hole Can be mounted an EIA standard equipment rack (2 unit size).

    5

  • [Rear]

    6. Socket with fuse Connects to power source with AC power supply cord. The Standard Voltage : AC 100 ~ 240V. Dissipation Power : 2000W.

    Fuse ratings: T16AL 250V.

    7. Ventilation hole

    8. Speaker output terminal Speaker output, Speakon ( NL4 ) terminal. Connects to speakers. Refer to p.7 and p.8.

    9. Signal input 20kΩ (balanced) / 10kΩ (unbalanced), XLR-F connector. Connects to Signal source.

    ⑥ ⑦ ⑧ ⑨ ⑩

    6

    10. Sensitivity selector switch Selects the input sensitivity of input as follows: 0.775 / 1.0V / 32dB*

    11. Link mode selector switch Selects the Link mode of input as follows: 1 in 4 / 2 in 4. Refer to p.8.

    12. Mode selector switch Selects the mode of input as follows: Bridge / Parallel / Stereo. Refer to p.8.

    13. Signal output (LINK) XLR-M connector. Connects to another one input terminal of the power amplifier. Refer to p.7.

    ⑬ ⑫ ⑪

  • 5. CONNECTIONS

    [Cable end treatment]

    NOTES:

    NOTES: The speaker connector can work from 4-16Ω in srereo or parallel model. It can work good from 8Ω to 16Ω n bridge mode.

    [Inputs]

    [Outputs]

    1

    Signal output LINK

    Signal inputSensitivity selector switch

    Modeselector switch

    INPUTBalanced male XLR

    Link mode selector switch

    2

    3

    Speakon ( NL4 )

    CH1

    CH2

    Negative/black/nero

    Positive/red/rosso

    Positive/red/rosso

    Negative/black/nero

    7

    The quality of your soldering is very important virtual welding or soldering errors, Would be likely to affect the normal use or even failure.

    BLACK

    RED

    20mm

    8mm 0.8”

    0.3”

  • 6. SYSTEM CONNECTION CASES

    MODE INPUT OUTPUT

    XLR NL4 Speakon

    CH 1

    CH 2

    CH 3

    CH 4

    CH 1

    CH 2

    CH 3

    CH 4

    CH1-2 CH3-4

    CH 1

    CH 2

    CH 3

    CH 4

    CH 1

    CH 2

    CH 3

    CH 4

    CH1-2 CH3-4

    CH 1

    CH 2

    CH 3

    CH 4

    CH 1

    CH 2

    CH 3

    CH 4

    CH1-2 CH3-4

    CH 1

    CH 2

    CH 3

    CH 4

    CH 1

    CH 2

    CH 3

    CH 4

    CH1-2 CH3-4

    CH 1

    CH 2

    CH 3

    CH 4

    CH1-2 CH3-4

    CH 1

    CH 2

    CH 3

    CH 4

    CH1-2 CH3-4 CH 1

    CH 2

    CH 3

    CH 4

    CH 1

    CH 2

    CH 3

    CH 4

    CH 3

    CH 4

    CH1-2 CH3-4

    CH 1

    CH 2

    CH 3

    CH 4

    CH 1

    CH 2

    CH 3

    CH 4

    CH1-2 CH3-4

    CH 1

    CH 2

    CH 3

    CH 4

    CH 1

    CH 2

    CH 3

    CH 4

    CH1-2 CH3-4

    CH 1

    CH 2

    CH 3

    CH 4

    CH 1

    CH 2

    CH 3

    CH 4

    CH 1

    CH 2

    CH 3

    CH 4

    CH 1

    CH 2

    CH 3

    CH 4

    CH 1

    CH 2

    CH 3

    CH 4

    CH 1

    CH 2

    CH 3

    CH 4

    CH 3

    CH 4

    CH 1

    CH 2

    System connection cases(1 in 4) System connection cases(2 in 4)

    CH1- 2 CH3- 4

    CH1- 2 CH3- 4

    CH1- 2 CH3- 4

    CH 1

    CH 2

    NOTES:

    LINK MODE

    MODE INPUT OUTPUT

    NL4 Speakon

    BRG = BRIDGEPAR = PARALLEL ST. = STEREO

    XLR

    1 IN 4

    2 IN 4

    BRG

    PAR

    ST.

    BRG

    PAR

    ST.

    BRG

    PAR

    ST.

    BRG

    PAR

    ST.

    BRG

    PAR

    ST.

    BRG

    PAR

    ST.

    BRG

    PAR

    ST.

    BRG

    PAR

    ST.

    BRG

    PAR

    ST.

    BRG

    PAR

    ST.

    BRG

    PAR

    ST.

    BRG

    PAR

    ST.

    LINK MODE

    1 IN 4

    2 IN 4

    8

  • 7. THERMAL DISSIPATION

    Stack installation To ensure the cooling environment, please meet the following condition.

    > 20CM

    HOT A

    IR

    In order to have a good heatdissipation condition for amplifierplease clean the filter after youfinish your install, because the dust in filter will stop the air vent, it's not good for the heatdissipation. And you should clean the filter net every month.

    NOTES:

    The ambient temperature shouldbe lower than 35℃ while runningthe amplifier.

    The first time cleaning of strainer mesh should be right after installation. Recommend to clean the strainer mesh quarerly.Pease do not run the product without the dust filter, or it makes the service life of the product shorten.Such condition will be considered as no warranty.

    To avoid heat protection To prevent the hot air back to frong airvent.

    Install exhaust blowertake the hot air away.

    HOT A

    IR

    NOTES: Keep hot air will not flow back to the front air vent.

    Try your best to keep the temperature under 35℃ even in extreme condition.

    NOTES:

    If use in Non-horizontal stack, wesuggest the rear exhaust outlet up or straight to the vents of the room.

    NOTES:

    NOTES:

    9

    COOL

    AIR

    COOL

    AIR

    COOL

    AIR

    COOL

    AIR

  • 8 . POW ER L EV EL ADJ USTMENTPr oced u r e Pow er on

    40181512

    9630

    CLIP

    8

    +12 d B

    0

    -

    40201263036

    12CLIP

    LINEGAIN

    -1 0- 3 d B

    + 4 0

    Th i s i s a nor m al s t ep t o ad j u s t m ent f or m or epr of es s i onal ad j u s t m ent y ous h ou l d h av e a pr of es s i onal per s on t o d o t h at .

    F or h i g h pow er s y s t em , t h ePow er -on or d er i s v er y i m por t ant , not i n t h e or d er i s l i kel y t o d am ag e t h e eq u i pm ent .Th er ef or w e s u g g es t t h at y ou u s e t h e s eq u enc e pow er d ev i c e.

    Mu si c Au d i t i onAd j u s t t h e v ol u m e f r om v er y s m al l t o l ou d s l ow l y , af t er y ou c onf i r m t h e s ou nd i s nor m al t h en m ake i t m or e l ou d er . W h en t h e s peaker ou t pu t i s c l os e t o i t s l i m i t , t h e CLIP l i g h t w i l l l i g h t s u p and y ou s h ou l d t u r n d ow n y ou r v ol u m e now , d on' t l et t h e CLIP l i g h t s on l ong t i m e, i t m eans ov er l oad , m ay d am ag e t h e s y s t em .

    Th i s s t ep s h ou l d oper at ed b y pr of es s i onal per s on, i f y ou d on' t know h ow t o d o, pl eas e b e c ar ef u l !

    Mi x er Processor

    Inpu t t h e s t ab l e pi nk noi s e

    Pu t t h e l i ne ou t pu t t o 0 d B

    LEV EL

    40201263036

    12CLIP

    CH

    0

    12

    MAIN

    0

    12

    GAIN

    GAIN

    LINE

    -10 + 40

    Ad j u s t t h e i npu t l ev el ofpr oc es s or l i kt h e ab ov e pi c t u r e

    40181512

    9630

    CLIP

    INPU TLEV EL

    Pow er Lev el Ad j u s t m ent

    Pow er am pl i f i er s h ou l d b e i n t h e c ond i t i on of no l oad i n t h e f ol l ow i ng ad j u s t m ent pr oc es s :Pr oc es s :

    Sou nd c ons ol e Sou r c e Per i ph er al d ev i c es Pow er Am pl i f i er

    Pow er of f

    Ad j u s t i npu t g ai n

    Pu t t h e m ai n ou t pu t t o 0 d B

    Pr oc es s or Am p Mi xe r

    Th e m ai n ou t pu t am pl i t u d e s et s h ou l d b e d i s pl ay ed as : 0 d B

    Ad j u s t t h e ou t pu t l ev el of pr oc es s or , t h e r ang e l i ke t h e ab ov e pi c t u r e s h ow s .

    Ad j u s t t h e v ol u ne knoband m ake t h e ou t pu t l ev elw i t h i n t h e r ang e as ab ov epi c t u r e s h ow s .

    Th en ad j u s t t h e i npu t g ai n t o m ake t h e m ai n ou t pu t l es s 3d B.

    This setting is to ensure twice power.

    NOTES:

    NOTES:

    NOTES:

    LEV EL LEV ELGAINOU TPU TLEV EL

    10

  • 9 . TROUBL ESH OOTINGAf ter p ow er ed w ith ou t any r esp onseMeasu r e t h e ou t l et w i t h a m u l t i m et er t o ch eck i f t h er e i s pow er ava i l ab l e and w h en no m u l t i m et er , yo u ca n h ave a t est penci l . If t h e pow er su ppl y i s nor m al and t h e am pl i f i er st i l l no r esp onse w h en pow er ed t h en t h er e i s so m et h i ng w r ong w i t h t h e am pl i f i er , need pr f essi onal per so n t o ch eck i t .

    No sig nal ou tp u t1. F r ist ch eck if th e sig nal inp u t is r ig h t.

    Ch eck t h e co nnect of XLR, i f t h e 2 and 3 r eve r t ed or t h e g r ou nd i s r el i ab l e. Di f f er ent ci r cu i t r y d es i g n w i l l h ave d i f f er ent co nnect w ay of t h e XLR, pl ease f ol l ow t h e 2+ 3- t o so l d er i ng .

    It can not b e j u d g ed b y comp ar ing w ith oth er amp l if ier s (incl u d ing oth er amp l if ier s in th e same f actor y).

    2. Th e sig nal l ig h t d on' t l ig h ts u p If al l t h e si g nal i npu t i s f i ne and t h e si g nal l i g h t

    d on' t l i g h t s u p t h en m ay t h e am pl i f i er h as f ai l u r e, yo u need t o ask t h e pr of essi onal per so n t o ch eck i t .

    3 . Sig nal inp u t nor mal b u t no sou ndTh e si g nal l i g h t w i l l f l ash w i t h t h e ch ang e of i npu t

    vo l u m e, b u t no so u nd ou t , t h en yo u ca n ch eck t h e co nnect of sp eakon i f i t i s co nnect g ood and t h e w i r es ar e co nnect r i g h t ( so m e t i m es t h e pr ob l em of t h e w i r es co nnect , ch eck i t s± 1 and ± 2 co nnect ) , af t er t h e ch eck ab ove i f st i l l no so u nd ou t , pl ease ch ang e a sp eaker ca b l e and ch eck ag ai n. Beca u se so m e t i m es al so ca u se d b y t h e b ad q u al i t y of t h e Speakon co nnect or pr ob l em of t h e am pl i f i er Th r ou g h exp er i ence s, i t m ay ca u se d b y t h e b ad co nnect i on of so m e pl u g s and t h e so cke t .

    Ou tp u t sou nd d istor tion1. Af t er ch eck t h e si g nal and l ou d sp eaker

    t h ey ar e f i ne and st i l l ca n h ear d i st or t i on w h en sm al l so u nd , t h en m ay t h e am pl i f i er h as f ai l u r e, need pr of essi onal per so n t o ch eck i t . 2. Som e f r eq u ency b and h as d i st or t i on F i r st , ch eck i f t h e l ou d sp eaker al r ead y ove r l oad , nor m al l y j u d g e i t i n 9 5 ~ 10 5 d B f or h i g h er SPL w e d on' t co m m ent h er e. Her e w e j u st t h i nk ab ou t t h e f ai l u r e r eco ve r y of t h e am pl i f i er . If i n t h e m i d d l e h ave so m e r u pt u r e so u nd and m or e sm al l er vo l u m e m or e ob vi ou s, t h en i t sh ou l d b e cr osso ve r d i st or t i on of t h e am pl i f i er and t h i s ki nd of d i st or t i on i s easy t o co nf u se w i t h t h e f ai l u r e of l ou d sp eaker i t se l f . If t h e am pl i f i er h ave f or pr ob l em t h en yo u sh ou l d se nd b ack t o t h e m anu f act u r f or r epai r .

    3. Di st or t i on i s Hi g h SPL If t h e so u nd i s nor m al w h en sm al l vo l u m e and t h en yo u need t o ch eck t h e l i m i t SPL of t h e l ou d sp eaker . Y ou ca n l i st n i t i n su i t ab l e vo l u m e and i f cl i p l i g h t w or ks, t h en yo u need r ed u ce

    t h e ou t pu t . Bot h l ou d sp eaker and am pl i f i er h ave l i m i t , yo u sh ou l d u se t h em i n t h ei r l i m i t i f

    Th e p r otection l ig h t b l ink sW h en th e PROTECT l ig h t w or k s, th e amp l if ierinto th e p r otection mod e.

    1. Mayb e t h e t em per at u r e i s t oo h i g h or ou t pu t sh or t or near sh or t and t h ey ar e not f ai l u r e t h ey ca n r eco ve r y af t er yo u ca n u se i t nor m al l y. Bu t ove r h eat w i l l t ake m or e t i m e t o r eco ve r y. Al so w h en ove r h eat h appened yo u sh ou l d ch eak t h e f an and t h e t em per at u r e of t h e i nst al l envi r onm ent , i f d oes yo u sh ou l d so l ve t h e pr ob l em t h en ca n u se am pl i f i er . If yo u t h i nk t h e

    sp eaker w as sh or t , yo u ca n w i t h a m u l t i m et er t o ch eck i f t h e r esi st i s l ow er t h an 2 oh m or 1 oh m w i t h DC ( Pl ease ca l i b r at e t h e m u l t i m et er t o m easu r e f or accu r acy b eca u se of t h e s m al l esi st ance ) . 2. If t h e PROTECT aw l ays l i g h t u p t h en i t sh ou l d b e t h e pr ob l em of am pl i f i er , yo u sh ou l d se nd i t b ack t o pr of essi onal per so n f or r epai r . H u m in th e system

    1. Hu m exi st s eve n w h en t h er e i s no si g nal Pl ease keep t h e am pl i f i er aw ay f r om ear t h w i r e of pow er su ppl y ca b l es, j u st co nnect t h e f i r e w i r e and ze r o w i r e, no g r ou nd w i r e. If t h e h u m i s st i l l exi st i ng , i t ca n b e j u d g ed t h at t h er e ar e so m e pr ob l em s i n t h e am pl i f i er . Pl eas e g et i n t ou ch w i t h pr of essi onal s. 2. Hu m exi st s w h en t h e syst em i s co m pl et el y co nnect ed Th i s i s ca u se d b y t h e d i f f er ent g r ou nd vo l t ag es i n d i f f er ence d evi ce s i n t h e syst em , m ai nl y h appens w h en t h e pow er su ppl y i s u nd er t h r ee-ph ase d i st r i b u t i on co nd i t i on, each d evi ce i s co nnect ed t o d i f f er ent ph ase . Th i s i s not ca u se d b y am pl i f i er .

    Th e amp l if ier is r eq u ir ed maintenance in th econd ition b el ow : 1. If t h e am pl i f i er sm okes or sm el l s b u r ni ng . 2. If t h e ca b i net h as se ve r e i nd ent at i on and d ef or m at i on. 3. If t h e am pl i f i er ar e d i pped i nt o t h e w at er . 4. If t h e i nt er nal co m ponent s l oose n. 5 . If AC b r eaker ski ps ou t w h en cu r r ent i ncr ease s.

    i n ve r y h i g h SPL t h ey h ave d i st or t i on yo u sh ou l d t ake ca r e of t h em and r ed u ce t h e ou t pu t t o t h e r i g h t posi t i on.

    Sol u tion ex p er iences, j u st f or r ef er enceA. Com b i ng t h e el ect r i ci t y t h e pow er d i st r i b u t i on ,

    b ox u si ng t h e sa m e one f or al l i f possi b l e.B. Make su r e t h e g r ou nd i ng w i r e pot ent i al i s ze r o

    and f or ce t h e d i f f er ent g r ou nd i ng w i r e t o t h e sa m e l eve l , i f t h e g r ou nd i ng w i r e i t se l f ch ar g ed , i nd i ca t es t h at t h e w i r e m ay b e co nnect ed w i t h t h e ze r o l i ne. Pl ease so l ve t h i s pr ob l em . c. If u nava i l ab l e ab ove , t h en onl y t o d i sco nnect t h e g r ou nd w i r es of al l d evi ce s, w h i ch h el ps t o r ed u ce t h e AC. Bu t t h i s i s not m eet t h e sa f e u se of el ect r i ci t y, u se r s m u st know w h at w i l l h appen i f t o d o i n t h i s w ay. W e d o not r eco m m end t h e f l oat i ng u se .

    11

  • 0 dB = 1 V The power is tested under the condition of 20ms burst 1kHz sin wave and 1% THD.

    2/3 rated, 8Ω/CH

    Note: The design and specifications are subject to change without notice for improvement.

    10. SPECIFICATIONS

    11. DIMENSIONAL DIAGRAM

    Power Source 100 - 240V AC, 50/60 HzAmplification System Class DPower Consumption Input CH1-4 : 20kΩ ( balanced ) / 10kΩ , XLR-F connectorOutput LINK CH1-4 : XLR-M connector SPEAKER 1-4 : 4 channels : 650Wx4 (8Ω ,1000Wx4 (4Ω 2 channels(BRIDGE) : 2000Wx2 (8Ω NL4 SPEAKON connector

    Frequency Response 20Hz - 20kHz (+/-3dB)Total Harmonic Distortion ≤0.1%S/N Rate ≥100dBLED Indicator Protect (red)/ Clip (red)/ -5dB(green)/-10dB(green) / -20dB(green) / Signal(green) / Power(green)

    Cooling Air flow from front to rearOperating Temperature 0℃~+35℃ (32℉ to 95℉)Operating Humidity 80% RH or less (no condensation)Finish Case : plated steel sheet, blackDimensions 483 (W) x 89 (H) x 461 (D) mm [19.02” x 3.5” x18.15”]Weight 9.2kg [20.28 lb]Accessory Power Cable ...1

    Unit: mm [in]

    483 [ 19.02” ]

    89 [

    3.5”

    ]

    Rear View

    Side View

    Front View

    430 [ 16.93” ]

    461 [ 18.15” ]

    423 [ 16.65” ]