TOA MA-725F Manuel utilisateur

Marque: TOA

Modèle: MA-725F

Taper: Manuel utilisateur

Ce manuel convient également à

MM-700F

OPERATING INSTRUCTIONS

MATRIX AMPLIFIER



MA-725F

MATRIX PRE-AMPLIFIER



MM-700F



ThankyouforpurchasingTOA'sMatrixAmplifier. 

Pleasecarefullyfollowtheinstructionsinthismanualtoensurelong,troublefreeuseofyourequipment.

TOA Corporation

TABLE OF CONTENTS

1. IMPORTANT SAFETY INSTRUCTIONS 3

2. SAFETY PRECAUTIONS 4

3. GENERAL DESCRIPTION 7

4. FEATURES 7

5. HANDLING PRECAUTIONS 8

6. INSTALLATION PRECAUTIONSS 8

7. NOMENCLATURE AND FUNCTIONS 9

[Front] 9

[Rear] 10

8. CONNECTION EXAMPLES 14

9. CONNECTION 16

9.1.

Removable Terminal Plug Connection 16

9.2.

How to Connect Input Signals 17

9.3.

Speaker Output Signal Connections 17

9.4.

MOH Output Connections 18

9.5.

LINE Output Connections 18

9.6.

Remote Control Equipment Connections 19

10. MUTING FUNCTIONS 20

10.1.

Manual Mute 20

10.2.

Auto Mute 21

10.3.

Priority Mix 22

11. OPERATION 22

11.1

Input Selections 22

11.2

EQ Preset Selection 23

11.3

Using the WP-700 Remote Controller 27

12. RACK MOUNTING BRACKET ATTACHMENT 28

13. PROTECTION 28

14. BLOCK DIAGRAMS 29

15. DIMENSIONAL DIAGRAM 31

16. SPECIFICATIONS 32

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 other apparatus

(includingamplifiers)thatproduceheat.

• Donotdefeatthesafetypurposeofthepolarizedorgroundingtypeplug.Apolarizedplughastwoblades

withonewiderthantheother.Agroundingtypeplughastwobladesandathirdgroundingprong.The

widebladeorthethirdprongareprovidedforyoursafety.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,

conveniencereceptacles,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,

or sold with the apparatus. When a cart is used, use caution when moving the

cart/apparatuscombinationtoavoidinjuryfromtipover.

• Unplugthisapparatusduringlightningstormsorwhenunusedforlongperiodsoftime.

• Refer allservicing to qualified service personnel. Servicing is required when the apparatus has been

damagedinanyway,suchaspowersupplycordorplugisdamaged,liquidhasbeenspilledorobjects

havefallenintotheapparatus,theapparatushasbeenexposedtorainormoisture,doesnotoperate

normally,orhasbeendropped.

INSTRUCTIONS ESSENTIELLES POUR LA SÉCURITÉ

• Lirecesinstructions.

• Conservercesinstructionspourréférenceultérieure.

• Respectertouslesavertissements.

• Suivretouteslesinstructions.

• Nepasutilisercetappareilàproximitéd'eau.

• Nettoyeruniquementàl'aided'unchiffonsec.

• Nepasobstruerlesorificesdeventilation.Installerconformémentauxinstructionsdufabricant.

• Nepasinstalleràproximitédesourcesdechaleurtellesquedesradiateurs,desregistresthermiques,

deschaudièresoud'autresappareils(notammentdesamplificateurs)produisantdelachaleur.

• Nepascontournerlafonctiondesécuritédelafichepolariséeoudemiseàlaterre.Unefichepolarisée

est équipée de deux broches, dont l'une est plus large que l'autre. Une fiche de mise à la terre est

équipée dedeuxbroches etd'une troisième pourlamise àla terre.Cette dernière,la plus large,est

prévueàdesfinsdesécurité.Silafichefournienepeutêtreinséréedanslapriseélectriquesouhaitée,

consulterunélectricienpourfaireremplacercettedernière.

• Protéger lecordond'alimentation pouréviterqu'il ne soitpiétiné oupincé, notamment au niveau des

fiches,desprisesdecourantoudesonpointdesortiedel'appareil. 

• Utiliseruniquementlesaccessoiresspécifiésparlefabricant.

• Utiliseruniquementaveclechariot,support,trépied,lapattedemontageoulatable

spécifiés par le fabricant ou vendus avec l'appareil. En cas d'utilisation d'un

chariot,manipulerlacombinaisonchariot/appareilpouréviterlesblessuresduesàun

renversement.                                                                               

• Débranchercetappareilpendantlesoragesainsiquelorsqu'ilresteinutilisépendant

unepériodeprolongée.

• Lamaintenancedel'appareildoitêtreconfiéeàuntechnicienaprèsventequalifié.

Unemaintenances'avèrenécessairesil'appareilestendommagé(auniveauducordond'alimentation

oudelafiche),aétémouilléparunliquide,unobjetesttombéàl'intérieur,s'ilaétéexposéàlapluieou

l'humidité,s'ilnefonctionnepasnormalementous'ilesttombé.



2. SAFETY PRECAUTIONS

• Beforeinstallationoruse,besuretocarefullyreadalltheinstructionsinthissectionforcorrectandsafe

operation.

• Besuretofollowalltheprecautionaryinstructionsinthissection,whichcontainimportantwarnings

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injuryand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awareofthepotentialsafetyhazards.



When Installing the Unit

•

Do not expose the unit to rain or an environment

whereitmaybesplashedbywaterorotherliquids,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 which is

specifiedmayresultinfireorelectricshock.

•

Do not cut, kink, otherwise damage nor modify the

powersupplycord.Inaddition,avoidusingthepower

cord in close proximity to heaters, and never place

heavyobjectsincludingtheunititself–onthepower

cord,asdoingsomayresultinfireorelectricshock.

•

Externalwiringconnectedtotheterminalsmarked

with…requiresinstallationbyaninstructedperson.

•

Theapparatusshallbeconnectedtoamainssocket

outletwithaprotectiveearthingconnection.

When the Unit is in Use

•

Shouldthefollowingirregularitybefoundduringuse,

immediatelyswitchoffthepower,disconnectthe

powersupplyplugfromtheACoutletandcontact

yournearestTOAdealer.Makenofurtherattempt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.)

•

Topreventafireorelectricshock,neveropennor

removetheunitcaseastherearehighvoltage

componentsinsidetheunit.Referallservicingsuch

asmodificationinsidetheunittoqualifiedservice

personnel.

•

Donotplacecups,bowls,orothercontainersofliquid

ormetallicobjectsontopoftheunit.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theunit'scover,as

thismayresultinfireorelectricshock.

•

Donottouchaplugduringthunderandlightning,as

thismayresultinelectricshock.



When Installing the Unit

•

Neverpluginnor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 pullonthe cord

itself.Operatingtheunitwithadamagedpowersupply

cordmaycauseafireorelectricshock.

•

When moving the unit,besure to remove its power

supplycordfromthewalloutlet.Movingtheunitwith

the power cord connected to the outlet may cause

damagetothepowercord,resultinginfireorelectric

shock. When removing the power cord, be sure to

holditsplugtopull.

•

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mayresultinfireorelectric

shock.



•

To avoid electric shocks, be sure to switch off the   

unit'spowerwhenconnectingspeakers.

•

Theunitisdesignedexclusivelytobemountedinan

equipment rack. Be sure to follow the instructions

belowwhenrackmountingtheunit.Failuretodoso

maycause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.

•

Besuretousethescrewswithadiameterofover5

mm(0.2")andlengthofover12mm(0.47")tomount

theunit.

•

When connecting the unit's power cord to an AC

outlet, use the AC outlet with current capacity

allowabletotheunit.

When the Unit is in Use

•

Makesuretosetalloutputlevelcontrolsto0position

beforepowerisswitchedon. 

•

Loudnoiseproducedwhenpowerisswitchedonwith

anyofthosecontrolssettothepositionotherthan0

positioncanimpairhearing.

•

Donotoperatetheunitforanextendedperiodoftime

with the sound distorting. Doing so may cause the

connectedspeakerstoheat,resultinginafire.

•

ContactyourTOAdealerastothecleaning.Ifdustis

allowedtoaccumulateintheunitoveralongperiodof

time,afireordamagetotheunitmayresult. 

•

If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.

•

Turnoffthisunit'spowerswitch,andunplugthepower

supply plug from the AC outlet for safety purposes

whencleaningorleavingtheunitunusedfor10days

ormore.Doingotherwisemaycauseafireorelectric

shock.

The lighting 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.



CONSEILS DE SÉCURITÉ

• Avantl'installationoul'utilisation,lireattentivementl'ensembledesinstructionsdecettesectionpourun

fonctionnementcorrectetsûr.

• Veilleràrespecterlesprécautionsrecommandéesdanscettesection,laquellecontientdesmisesen

garde

• et/ouprécautionsimportantesenmatièredesécurité.

• Aprèslecture,conservercemanuelàportéedemainpourconsultationultérieur

e.



Symboles de sécurité et conventions

Lessymbolesetmessagesdesécuritédécritscidessoussontutilisésdanscettenoticepourprévenirtout

dommagecorporeloumatérielpouvantrésulterd'unemauvaiseutilisation.Lireattentivementcettenotice

pour comprendre parfaitement les symboles et messages de sécurité afin de prévenir tout risque éventuel.



Lors de l'installation de l'appareil

•

Nepasexposerl'appareilàlapluieetleprotégerde

tout contact avec de l'eau ou d'autres liquids afin

d'éviterunincendieouuneelectrocution.

•

Utilisez l'appareil uniquement avec la tension

spécifiée sur le chargeur. L'utilisation d'une tension

supérieureàcellespécifiéepeutêtreàl'origined'un

incendieoud'uneelectrocution.

•

Nepascouper,entortiller,modifierouendommagerle

cordon d'alimentation. En outre, éviter d'utiliser le

cordond'alimentationàproximitéd'unradiateuretne

jamais placer d'objets lourds (y compris l'appareil

luimême) sur le cordon d'alimentation, car ceci

présenteunrisquéd'incendieoud'électrocution.

•

Lescâblesexternesbranchésauxbornesmarquées

de .… doivent être installé par un technicien

spécialementformé. 

•

L'appareildoitêtrebranchéàuneprised'alimentation

avecmiseàlaterredeprotection.

Pendant l'utilisation de l'appareil

•

En cas de survenue des irrégularités suivantes

pendant l'utilisation, couper immédiatement 

l'alimentation, débrancher la fiche du cordon 

d'alimentation de l'adaptateur secteur de la prise

secteur et contacter le représentant TOA le plus

proche.Nepasessayerpasd'utiliserl'appareildans

cesconditionssouspeinedeprovoquerunincendie

ouuneélectrocution.



•

Détectiondefuméeoud'uneodeurinhabituelle

émanantdel'appareil.

•

Pénétrationd'eauoud'unobjetmétalliquedans

l'appareil.

•

Chuteouendommagementdel'appareil

•

Dégradationducordond'alimentation(âmeducâble

dénudée,déconnexionetc.).

•

Dysfonctionnement(absencedetonalité).

•

Pourempêcherunincendieouuneélectrocution,ne

jamaisouvrirnineretirerleboîtierdel'appareil,en

raisondelapréswencedepiècesàhautetension.

Touteslesopérationsdemaintenance,notamment

lesmodificationsapportéesàl'intérieurdela

machine,doiventêtreréaliséesparuntechnicien

qualifié.

•

Nepasplacerdetasses,bolsouautresrecipients

remplisdeliquidesoud'objetsmétalliquesaudessus

del'appareil.S'ilsserépandentparaccidentsur

l'appareil,ilspeuventprovoquerunincendieouune

électrocution.

•

Nepasinsérernilaissertomberd'objetsmétalliques

oudematériauxinflammablesdansleséventsde

ventilationducapotdel'appareilsouspeinede

provoquerunincendieouuneélectrocution.

•

Nepastoucherlaficheducordond'alimentation

pendantunorageRisqued'électrocut.

Lors de l'installation de l'appareil

•

Nejamaisbrancher,nidébrancherlaficheducordon

d'alimentationaveclesmainsmouillées.Risque

d'électrocution.

•

Pourdébrancherlecordond'alimentation,veilleràle



parsafiche;nejamaistirerdirectementlecordon.

Utiliserl'appareilavecuncordond'alimentation

endommagépeutprésenterunrisqued'incendieou

d'électrocution.

•

Lorsdudéplacementdel'appareil,veilleràretirerla



ficheducordond'alimentationdel'adaptateursecteur

delaprisemurale.Silechargeurestdéplacéavecle

cordond'alimentationbranchédanslaprise,ce

dernierrisqued'êtreendommagé,cequiprésenteun

risqued'incendieoud'électrocution.Pourretirerle

cordond'alimentation,letirerparlaprise.

•

Éviterd'installerl'appareildansunendroithumideou

poussiéreux,enpleinsoleil,àproximitéd'un

radiateur,oudansunendroitdégageantdelafumée

noireoudelavapeursouspeinedeprovoquerun

incendieouuneélectrocution.

•

Pouréviterleschocsélectriques,veilleràdébrancher

l'appareilavantdeconnecterleshautparleurs.

•

Cetappareildoituniquementêtremontédansunbâti.



Veilleràsuivrelesinstructionscidessouslorsdu

montageenbâti. 

Risqued'incendieoudeblessurecorporelle.

•

Installerlebâtisurunsolstable.

Lefixeràl'aidedeboulonsd'ancrageoud'unautre

dispositifpourl'empêcherdetomber. 

•

Lorsdumontagedel'appareil,veilleràutilizerunevis

deplusde5mm(0,2")dediamètreetdeplusde

12mm(0,47")delongueur.

•

Pourbrancherlecordond'alimentationàuneprise

CA,vérifierl'intensitémaximaledel'appareil.

Pendant l'utilisation de l'appareil

•

Mettretouteslescommandesduniveausortieen

position0avantquel'alimentationnesoitrestituée.Si



 l'appareilestmissoustensionalorsqueces

commandesnesontpasenposition0,unbruitfortau

pointdedégraderl'auditionrisqued'êtreémis.

•

Nepasutiliserl'appareilpendantunepériode

prolongéesilesonestdistordu.Leshautparleurs

branchésrisquentdesurchaufferetdeprovoquerun

incendie.

•

Pournettoyerl'appareil,contactervotrerevendeur

TOA.L'accumulationdepoussièrependantune

périodeprolongéepeutentraînerunincendieouune

dégradationdel'appareil.

•

L'accumulationdepoussièresurlaficheducordon

d'alimentationoudanslaprisesecteurprésenteun

risqued'incendie.Lesnettoyerrégulièrement.Par

ailleurs,insérercomplètementlafichedanslaprise

murale.

•

Parmesuredesécurité,lorsdunettoyageoulorsque

l'appareil n'estpas utilisépendant 10jours ou plus,

couper l'alimentation, et débrancher la fiche du

cordon d'alimentation de l'adaptateur secteur de la

prisesecteurRisqued'incendieoud'électrocution.



L'éclairaccompagnéd'unsymbole

représentantunepointedeflècheàl'intérieur

d'untriangleéquilatéralavertitl'utilisateurdela

présenced'une"tensiondangereuse"à

l'intérieurdel'enceintedutéléviseur,dontla

magnitudepeutêtresuffisantepourconstituer

unrisquedechocélectriquepourles

personnes

3. GENERAL DESCRIPTION

TOA's MA725F matrix amplifier and MM700F is allinone solution for multichannel or multizone

applicationscombined6x4audiomatrix,DSPand4chClassDamplifier(*)intoonechassis.Itisequipped

with 4 independent line inputs, 2 MIC/LINE priority inputs. Each output has independent DSP preset

adjustment alsocomes with inputsource matrix selection. Itfeatures ahigh powerhandling(250Wx4 @

70V/100V)(*)andvariousinputscapabilities.Itswiderangeofapplicationsincludegeneraloremergency

announcementandbackgroundmusicplayingatrestaurants,pubs,retailstores,schools,officesandetc.



(*)MA725Fonly

4. FEATURES

• 4stereosumminglineinputswithmatrixroutingto4amplifieroutputs.

• Eachlineinputhasinputleveladjustmentandassignrestrictionsettingforeachoutputtopreventwrong

routingselection.

• 2priorityMIC/LINEinputswithdifferentprioritylevelforpagingorotherprerecordedsourcecanoverride

theselectedlineinputonassignedoutputchannels.

• Eachpriorityinputalsohasinputlevel,mutesensitivityandmuteholdtimeadjustments.

• Eachoutputchannelisequippedwith250WClassDamplifierat70V/100Voutputvoltageselectablewith

independentDSPpresetselectionand50HzHPFfortheprotectionofconnectedspeakers.(*)

• SelectableDSPpresetselectionsincludegeneralEQs,likeLoudnesscurves,TOAspeakerEQsand

crossoversettingstobeusedwithsubwoofers.

• Eachoutputchannelalsohasauxiliarylineoutputtodelivertheaudiotoothersystem.

• Thismatrixdoesn’tneedanyGUIornetworkconnectionforsetupatsite.(Maintenancepurposeonly)

• Optionalwallmountremotecontrol,WP700canbeconnectedviaCAT5straightLANcabletocontrol

lineinputselectionsandoutputvolumeofeachoutput.



• ClassDamplifierhasalotofprotectionfeaturesagainstovercurrent,hightemperatureandshortcircuit

ofspeakerlinesateachoutputchannelindividually.(*)

• PowersupplywithPowerFactorCorrectionforreducedpowerconsumptionandworldwideoperating

range.(*)

(*)MA725Fonly

5. HANDLING PRECAUTIONS

• Keeptheinputcableawayfromtheoutputcable.Ifinstalledclosetoeachother,oscillationcouldoccur. 

• Toavoidunitfailures,neverconnectoutputsof2ormorechannelsinparallel. 

• Onlyconnectspeakerswithanimpedanceequaltoorgreaterthanthosespecified.Connectingspeakers

withasmallerimpedancethanspecifiedcouldcausedamagetotheunit. 

• Installtheunitinlocationswherethetemperatureisbetween–10°Cand+40°C(14°Fand104°F)andthe

moistureislessthan90%RH(nodewcondensationmustbeformed).

• Toclean,besuretofirstturnoffthisunit'spowerswitch,thenwipewithadrycloth.Whentheunitgets

verydirty,useaclothdampedinaneutralcleanser.Neverusebenzene,thinner,alcohol,or

chemicallytreatedcleaningclothbecausesuchvolatileliquidscoulddeformordiscolortheunit.

6. INSTALLATION PRECAUTIONS

• Whenmountingtheunitinanequipmentrack,theinsideoftherackmustbesufficientlyventilated. 

Toachievesufficientventilation,removeallpanelsontherearoftherack.

• Whenmountingtheunitintherack,alsomountaPerforatedPanellargerthan1Uinsize

(1)atthetopandthebottomoftherack,and

(2)aboveandbelowevery5units.



*1Usize=44.5mmor1.75"(referencesize)

7. NOMENCLATURE AND FUNCTIONS

[Front]



1 POWER SIWITCH [ON /OFF]

Pressthisswitchtoturnontheamplifier,presstheswitchagaintoturnofftheamplifier.

2. POWER INDICATOR [POWER] (Blue)

Duringthepoweronprocesstheindicatorflashes,afteramplifierisready,theindicatorlights.

3. CH1 OUTPUT LEVEL CONTROL

AdjustCH1outputlevel

Note:ThefunctionalityofCH2,CH3,CH4isthesameasCH1.

4. CH1 SIGNAL, PEAK, PROTECT INDICATOR (Green, Red, Red)

SIGNALIndicator:Whenoutputlevelexceeds36dBV,theSIGNALindicatorlights.

PEAKIndicator:Lightsredwhenanoutputsignalclips(distortionoccurs).

Note:

When the Peak indicator lights, turn the output level control (3) counterclockwise until its light

extinguishesordecreasetheinputsignalleveloftheconnectedexternaldevice.Operatingthe

unitwhilethePeakindicatorremainslightsmaycausetheprotectioncircuitrytobeactivated.

PROTECTIndicator(*):  Lightsorblinkswhentheprotectioncircuitryisactivated.(Seep.27;Protection

Operation List.) When the power is switched on, this indicator lights for about 2 seconds and then

extinguishes.

Note: ThefunctionalityofCH2,CH3,CH4isthesameasCH1.

5. LINE 1, LINE 2, LINE 3, LINE 4 INPUT SIGNAL INDICATOR (Green)

WhenLINE1,LINE2,LINE3,LINE4inputsignalisexceed47dBV,theindicatorlights.

6. PRIORITY INPUT SIGNAL INDICATOR [PRIORITY 1, PRIORITY 2] (Green, Green)

PRIORITY INPUT SIGNAL1 Indicator: When the priority input 1 signal (14) exceed 36dBV

(line)/86dBV(mic)theindicatorlights. 

PRIORITY INPUT SIGNAL2 Indicator: When the priority input 2 signal (14) exceed 36dBV

(line)/86dBV(mic),theindicatorlights.

7. CH1 PRIORITY INDICATOR [PRIORITY1, PRIORITY2] (Green, Green)

PRIORITY1Indicator：WhenPRIORITY1isactivatedandassignedtoCH1output,theindicatorlights.

PRIORITY2Indicator：WhenPRIORITY2isactivatedandassignedtoCH1output,theindicatorrights.

Note: 1. WhenPRIORITYMIX1+2switchisturnedonandactivated,thesetwoindicatorlightatthesametime.

2.ThefunctionalityofCH2,CH3,CH4isthesameasCH1.



8. CH1 PRIORITY INDICATOR [REMOTE] (Yellow)

WhenremotecontrolpanelWP700isconnectedtoCH1ofREMOTETERMINALS,theindicatorlights.

Atthistime,bothoutputlevelandinputsourceselectioncouldbechangedbyconnectedWP700.

Note: 1. WhenWP700isconnected,CH1OUTPUTLEVELCONTROL(3)andCH1INPUTSELECTSWITCH(5)

onthefrontpanelaredefeatedandcontrolledbyWP700.

2. WhenWP700isdisconnected,theoutputlevelgoesbacktothesettingofCH1OUTPUTLEVEL

CONTROL(3)

3. ThefunctionalityofCH2,CH3,CH4isthesameasCH1.

9. CH1 INPUT SELECT SWITCH 1 - 4

SelectfromLINE14inputsastheinputsourceforamplifierCH1output.Selectagainontheprevious

selectedinputturnsofftheselectionofinputsource.

Note:  ThefunctionalityofCH2,CH3,CH4isthesameasCH1.

10. CH1 INPUT SELECT INDICATOR [1, 2, 3, 4] (Green)

TheledwilllightwithrespecttotheinputselectbytheINPUTSELECTSWITCH(5)otherchannelwhich

isnotselectedwillturnoff.

Note: ThefunctionalityofCH2,CH3,CH4isthesameasCH1.

(*) MA-725F only



[Rear]



11. AC inlet

Connectthesuppliedpowercordtothisinlet.Thesocketoutletshouldbeinstalledneartheequipment

andtheplug(disconnecteddevice)shallbeeasilyaccessible.

12. Functional ground terminal [SIGNAL GND]

Hum noise may be generated when external equipment is connected to the unit. Connecting this

terminaltothefunctionalgroundterminaloftheexternalequipmentmayreducethehumnoise.

13. LINE 1, LINE 2, LINE 3, LINE 4 INPUT TERMINAL

10kΩ，–10dB*，unbalancedRCAJack(UpperandlowerofRCAinputsignalismixed)

Connectmusicsourceequipment:e.g:CDplayers.

14. LINE 1, LINE 2, LINE 3, LINE 4 INPUT LEVEL CONTROL

Adjusttheinputlevel(sensitivity)ofLINE1,LINE2,LINE3,LINE4.

15. ASSIGNMENT RESTRICTION DIP SWITCHES (LINE 1, LINE 2, LINE 3, LINE 4)

AssignrestrictionLINE1,LINE2,LINE3,LINE4toCH1,CH2,CH3,CH4outputs.

LINE1ASSIGNMENTRESTRICTIONS:

SwitchNo.



ON OFF

1 LINE1can’tbeassignedtoCH1  LINE1canbeassignedtoCH1

2 LINE1can’tbeassignedtoCH2  LINE1canbeassignedtoCH2

3 LINE1can’tbeassignedtoCH3  LINE1canbeassignedtoCH3

4 LINE1can’tbeassignedtoCH4  LINE1canbeassignedtoCH4

Note:1)

ThefunctionalityforLINE2,LINE3,LINE4isthesameasLINE1.

 2) When the assignment restriction is set, both INPUT SELECT SWITCH (10) or connected

WP700,arenotallowedtoselecttherestrictedchannel.

16. MIC/LINE input terminal (PRIORITY 1, PRIORITY 2)

MIC:2.2K,–60dB*/LINE:2.2K,–10dB*,electronicallybalancedinputsof3pinremovableterminal

blocktype.

Connectmicrophoneorlinelevelmusicsourceequipment.MIC/LINEgaincouldbefromthePRIORITY

FUNCTIONALDIPSWITCH(20)#6.

17. MIC/LINE input level control (PRIORITY 1, PRIORITY 2)

Adjusttheinputlevel(sensitivity)oftheMIC/LINE

18. Manual mute terminal

Openvoltage:DC3.3V,Shortcurrent:<5mA

1) When(+),()shorted:TheselectedLINE1,LINE2,LINE3,LINE4inputsignaltoCH1,CH2,CH3,

CH4outputwillbemuted,andswitchtothepagechannel(1st~4thswitchof(20))thathavebeen

assignedbyPRIORITY1,PRIORITY2inputs.

2) When(+),()opened：CH1,CH2,CH3,CH4outputwillgraduallyrecoveredfromtheprevious

assignedLINE1,LINE2,LINE3,LINE4signal.TherecoverytimeiscontrolledbytheHOLDTIME

control(19).

19. MUTE SENSE control (PRIORITY 1, PRIORITY 2)

Adjustthethreshold(sensitivity)ofthemutefunctionofthePRIORITY1,PRIORITY2inputs.Inother

words,ifPRIORITY1,PRIORITY2inputsignalexceedthethresholdthatsetbyMUTESENSE,itwill

mutetheLINE1,LINE2,LINE3,LINE4signaltoCH1,CH2,CH3,CH4outputs.Rotateclockwisewill

raisethesensitivity,counterclockwisewilllowerthesensitivity.

20. HOLD TIME control (PRIORITY 1, PRIORITY 2)

AdjusttherecoverytimeoftheLINE1,LINE2,LINE3,LINE4toCH1,CH2,CH3,CH4outputs.Rotate

clockwise will increase the recovery time (maximum 10sec), counterclockwise will decrease the

recoverytime(minimum50ms)

21. PRIORITY FUNCTIONAL DIP SWITCH (PRIORITY 1, PRIORITY 2)

ControlthefunctionalityofthePRIORITY1andPRIORITY2

SwitchNo.



ON OFF

1 PRIORITY1/2canbeswitchedtoCH1output PRIORITY1/2cannotbeswitchedtoCH1output



2 PRIORITY1/2canbeswitchedtoCH2output PRIORITY1/2cannotbeswitchedtoCH2output



3 PRIORITY1/2canbeswitchedtoCH3output PRIORITY1/2cannotbeswitchedtoCH3output



4 PRIORITY1/2canbeswitchedtoCH4output PRIORITY1/2cannotbeswitchedtoCH4output



5 ThemutefunctioniscontrolledbythePRIORITY

1/2inputsignalormanualmute(16)

The mute function is only controlled by the

manualmute(16)

6 PRIORITY1/2inputgainswitchtoMIClevel PRIORITY1/2inputgainswitchtoLINElevel

22. PRIORITY MIX1+2 switch

ControltheinputmodeofthePRIORITY1/2 

ON OFF

PRIORITY1andPRIORITY2willbemixedandoutput

to CH1, CH2, CH3, CH4 when mute activated. The

PRIORITY FUNCTIONAL DIP SWITCH (20), MUTE

SENSE control (18), HOLD TIME control (19) will be

followedbyPRIORITY1’ssetting 

The PRIORITY 1 has the higher priority level than

PRIORITY 2. When There is mute function activated.

UnitwilloutputPRIORITY1’sinputfirst.

23. EQ BANKS and PRESETS SELECTION



The2bitDIPswitchselectthebankofrespecttothe16EQpresets.Total4banks.

 

The4bitrotaryswitchselects16EQpresetsfromeachbanks.

Note:ThefunctionalityofCH2,CH3,CH4isthesameasCH1. 

 Pleaseseepage23,"11.2EQpresetselections"formoredetails.

24. HPF SWITCH (*)

ControltheactivationofHPF(HighPassfilter)onoutputs.

 ON OFF

TheCH1,CH2,CH3,CH4willhas50Hz,12dB/oct.high

passfilteronoutput.Thisisusefultoprotectthespeaker

when thetransformer of thedistributespeakercouldn’t

handlelowfrequency. 

The output frequency response is flat from 20Hz to

20kHz.

25. REMOTE TERMINALS (CH1, CH2, CH3, CH4 remote controls)

RJ45connector,useforconnectingtheremotemoduleWP700.

AfterconnectingWP700couldprovidethefollowingfunctionality:

1) SwitchtheinputsourceLINE1,LINE2,LINE3,LINE4toCH1,CH2,CH3,CH4outputs.

2) Adjustthevolumeofconnectedchannel.

Note:WhentheWP700isconnected,theOUTPUTLEVELCONTROL(3)onfrontpanelandINPUT

SELECTSWITCH(10)won’tbefunctional.ItmeansthistwofunctionwillfollowWP700setting.Also,

theREMOTEINDICATOR(8)willlight.

26. REMOTE LINK SWITCH (CH1-2, CH3-4)

CH12:

ON OFF

CH1,CH2couldcontroltheCH1andCH2’svolumeand

input selection by one WP700 at the same time. The

REMOTEINDICATORonCH1andCH2willlightatthe

sametime. 

Note: Only connect to CH1’s REMOTE TERMINAL to

presentremotelinkfunction

CH1,CH2’svolumeiscontrolledseparatedbytwo 

WP700.

CH34:

ON OFF

CH3,CH4couldcontroltheCH1andCH2’svolumeand

input selection by one WP700 at the same time. The

REMOTEINDICATORon CH3and CH4willlight at the

sametime. 

Note: Only connect to CH3’s REMOTE TERMINAL to

presentremotelinkfunction

CH3,CH4’svolumeiscontrolledseparatedbytwo 

WP700.

27. 70V/100V OUTPUT MODE SWITCH (*)

Adjusttheamplifieroutputmode

70V 100V

Maximumoutputwillbesetto70Vrms

(maximumloadimpedance=20ohm)

Maximumoutputwillbesetto100Vrms

(maximumloadimpedance=40ohm)

28. POWER REMOTE TERMINAL

Openvoltage:3.3V,Shortedcurrent:<1mA

WhenACmainsisconnectedto(11)andPOWERSWITCH(1)isinONposition,shortedwillturnoffthe

poweramplifierandalloftheindicationforpowersaving.Openwillinnormaloperation.

29. LAN PORT

RJ4510/100MEthernetconnection.

Maintenancepurposeonlyforfactory.

30. LINE OUTPUT TERMINAL (CH1, CH2, CH3, CH4) (*)

600Ω,0dB*,RCAconnector.

Auxiliarylineleveloutput(justbeforetheamplifierinput).

31. MOH OUTPUT TERMINAL

600Ω,0dB*,transformerisolatedbalancedoutput,removableterminalblocktype.

LINE4inputisassignedtothisoutput.

Note: 

1.TheMOHoutputlevelisnotaffectedbytheinputlevelcontroloftheLINE4.

2.MOHoutputdoesn’thaveMUTEfunctionality.

3.MOHoutputdoesn’thaveEQfunctionality.

32. MOH OUTPUT INPUT LEVEL CONTROL

AdjusttheinputleveloftheMOHOUTPUT.

33. SPEAKER OUTPUT TERMINAL (CH1, CH2, CH3, CH4)

MA725F:

70V/100Voutput (selectby the70V/100V OUTPUTMODESWITCH (26)),removableterminal block

type.Connecttospeaker.

MM700F:

600Ω,0dB*,removableterminalblocktype.Lineleveloutput.



*0dB=1Vrms

(*) MA-725F only

8. CONNECTION EXAMPLES

MA-725F

MM-700F

9. CONNECTION

9.1. Removable Terminal Plug Connection

Cautions

•  Besuretouseshieldedcablesforaudiosignallines.

•  Avoidsolderingcableconductor,ascontactresistancemayincreasewhenthecableistightenedand

thesolderiscrushed,possiblyresultinginanexcessiveriseinjointtemperatures.

•  UsecablesofAWG12–24.

Cable end treatment

Connector connections

Step 1. Loosentheterminalscrew,theninsertthecable.

Step 2. Retightentheterminalscrew.(Pullonthecabletoensureitissecurelyconnected.)



Tip

Recommendedslottedscrewdrivertype:Screwdriverwithbladethatis3mm(0.12")inwidth.



9.2. How to Connect Input Signals

9.2.1. LINE 1, LINE 2, LINE 3, LINE 4 connections

 LandRlinesignalsaremixedinsidetheunit.



9.2.2. PRIORITY 1 and PRIORITY 2 connections

UsethesuppliedSmalltyperemovableterminalplug(5pins)forconnection.PRIORITY1

andPRIORITY2canbesettoMICorLINEinput.

9.3. Speaker Output Connections

Theunitcanoperatedat70Vor100VlinehighimpdedancespeakersClass2wiringmaybeused.

Usingsuppliedremovableterminalplug(2pins),connectthespeakerlinetoeachspeakerterminals.



9.3.1. High-impdedance 70V line speaker connections (*)

9.3.2. High-impdedance 100V line speaker connections (*)

9.4. MOH Output Connections

Usethesuppliedremovableterminalplug(3pins)forconnection.



9.5. LINE output connections

Auxiliarylineleveloutputforzoneexpansion. 

9.6. Remote Control Equipment Connections

9.6.1. Manual muting terminal connections

If a novoltage contact is connected, closing the contact allows the predetermined input

channelvolumetobereducedbyapresetlevelofattenuation.

Ifa microphonewitha contactis connectedasshownin Connection (p.12), theaudioof

otherchannelswillbemutedforaslongasthemicrophone’stalkswitchispressed.



  

9.6.2. Power remote terminal connections

Ifanovoltagecontactisconnected,closingthecontactallowstheamplifiergoesintopower

savingmode.Alloftheindicationwillbeturnoff.



9.6.3. Remote terminals (RJ-45) connections

Eachchannel’svolumeandinputselectioncouldberemotelyadjustedbyWP700remote

module.



(*)MA725Fonly

10. MUTING FUNCTIONS

Theunit’spriority/mute(paging)functionsis tomutetheLINE1,LINE2,LINE3,LINE4signalthat

routedtoCH1,CH2,CH3,CH4’soutputsandthenroutePRIORITY1orPRIORITY2signalstooutputs.

Theprioritylevelofeachinputsisasfollowing:



Prioritylevel PRIORITY  MIX1+2:OFF PRIORITY  MIX1+2:ON

HIGHER



LOWER

PRIORITY1

PRIORITY1/PRIORITY2

PRIORITY2

LINE1,LINE2,LINE3,LINE4 LINE1,LINE2,LINE3,LINE4

10.1 Manual Mute

Step 1. Assign the PAGE CH:

AssignpagingchannelfromthePRIORITYFUNCTIONALDIPSWITCH. 

Switch

No.

ON:DOWN OFF:UP

1 PRIORITY1/2canbeswitchedtoCH1output PRIORITY1/2cannotbeswitchedtoCH1output

2 PRIORITY1/2canbeswitchedtoCH2output PRIORITY1/2cannotbeswitchedtoCH2output

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TOA MA-725F Manuel utilisateur

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