A/DA MP-1-CHANNEL Manuel utilisateur

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ADAMP‐1‐CHANNELUserManual

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TheADAMP‐1‐CHANNELisdesignedfortheguitaristwhowantstheauthentictoneofthe

renownedMP‐1MIDITUBEPREAMPinaneffectspedalenclosure.TheMP‐1‐CHANNELuses

thesamevacuumtubedesignoftherack‐mountedMP‐1PREAMPofthelate1980sto

accomplishthisgoal.Two12AX7vacuumtubescreatethetone–VOICEDasCLEANand

DISTORTIONforsmoothwarmthorsparklingdefinitiontoresponsiveoverdriveandhigh‐gain

distortion.ThesignalisthenpassedthroughtheADAtonestackforshapingandharmonic

emphasis.

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TheMP‐1‐CHANNELpedalhasaTrueBypassfootswitchandrunsoffastandard12‐voltAC

adapter.InsidetheMP‐1‐CHANNELthevoltageisincreasedto270voltstoobtainthebest

performancepossiblefromthe12AX7s.UnliketheoriginalMP‐1,theMP‐1‐CHANNELisnot

MIDIprogrammable,notstereoandhasnochoruseffect.TheMP‐1‐CHANNELisasingle

channel,monopedal.

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POWERINGUP

ThebestwaytopoweruptheMP‐1‐CHANNEListosetthePOWERswitchoff,plugintheAC

adapter(ADApartnumber240005)orpedalboardpowersupply(12Vat800mA),andturnon

thepowersupply,butnottheMP‐1‐CHANNEL.ThensettheMP‐1‐CHANNELPOWERswitch

on.Thevacuumtubesrequirealotofcurrenttostayhot,andsomepowersuppliescannot

providethis.WerecommendtheADAACadapterbecausesomegenericACadapterswill

“shutdown”forprotectionandcausetheMP‐1‐CHANNELPOWERLEDtoflashafewtimes

beforestayingon.Thisdoesnotcauseanydamage,butcanbeabitannoying.Afterthetubes

warmup,theguitarsignalispassedtotheOUTPUTjack.

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Notethattheconnectorisa2.1mmwiththecenterpinnegative,themostcommon

configurationforeffectspedals.Thereisno9VbatteryintheMP‐1‐CHANNEL,andtheMP‐1‐

CHANNELwillnotworkwitha9VDCpowersupply,norwillitworkona12Vpowersource

withlessthan800mAofcurrent.

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APPLICATIONS

TheMP‐1‐CHANNELwasdesignedforpedalboardsanddirectrecording.Youcanprecedeit

withotherpedalsandeffectsoryoucanplacethemaftertheMP‐1‐CHANNEL.Mostcommon

effectsaftertheMP‐1‐CHANNELaredelays,cabinetsimulators,andreverb.Someguitarists

willwanttheMP‐1‐CHANNELtoperformthefunctionofapreamp,andwillwantitsOUTPUT

toconnecttoacomboamp’spowerstageviaa“directinsert”jackortheeffectsreturnloop

jack.Thisavoidsapreamppluggedintoanotherpreampsituation,whichis,inmostcases,

undesirable.Ifyourcomboorheaddoesnotallowdirectaccesstoitspoweramp,youcan

plugintothecomboorhead’sinput.Whendoingthis,itisbesttosetthetonecontrols“flat”

and“drive”turneddowntokeepthesignalcleanwiththemastervolumeup.Thiswillallow

theMP‐1‐CHANNELtobethesourceofdistortion,ratherthansharingitwiththecomboor

headpreamp.

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Forliveperformance,theMP‐1‐CHANNEL,alongwithaGCSCabinetSimulator,caneliminate

theneedforacomboorheadwithaguitarspeakercabinet.Youcangetincredibletone

throughthehousesoundsystem(PA)andthroughfull‐rangestagemonitorsorearmonitors.

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Fordirectrecording,werecommendacabinetsimulatorlikeoneofourGCSproducts.Thiswill

addtherealismofamikedguitarspeakercabinettotheguitartonecomingfromtheMP‐1‐

CHANNEL,oryourpedalboard.

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CONTROLS

LiketheMP‐1,theMP‐1‐CHANNELhastwocontrols,OD1andOD2,tosetthedrivelevelofthe

firsttwostagesandthefollowingstages3and4.Withthisflexibility,theguitaristcannotonly

settheamountofdistortion,butcontrolthelevelofevenandoddharmonicdistortion.Even

harmonicsaregeneratedbyclippingonesideoftheguitarsignalinsteadofboththetopand

bottomsidesofthesignalforoddharmonicdistortion.Evenharmonicsaresmoothand

hollow,whileoddharmonicsarecrunchy,harshand,withpropersettingofthetonestack,

“hairy.”Trysomeofthesettingsshownbelowtohelpgetyoufamiliarwithhowthecontrols

work.

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ThereisoneINPUTjackandoneOUTPUTjack.KeepinmindthattheMP‐1‐CHANNELisa

stompboxandrunsatINSTRUMENTlevels,notLINElevels.

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TheVOICINGswitchsetsthe12AX7gainanddriveequalizationforCLEANandDISTORTION

biasing.TheMASTERcontrolsetsthelevelofthesignalcomingfromthefourgainstagesof

the12AX7s.(Thereare2stagesper12AX7vacuumtube.)

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Thetonestack(BASS,MID,TREBLEandPRESENCE)isanactivefilterwhichmeansitcancut

ANDboostthesignal.Whenallthetonestackcontrolsaresetto12:30o’clock,thefrequency

responseis“flat”–noboostorcut.ThereisadifferencebetweentheMIDcontrolsofthe

originalMP‐1andtheMP‐1‐CHANNEL.ADAincreasedtherangeoftheMIDcontrolintheMP‐

1‐CHANNELsomodernguitarplayerscangetaradical“scoop”ofthemidfrequencies.The

amountofMIDboosthasalsobeenincreasedsoplayerscangeta“low‐powercombowitha

10‐inchspeaker”soundforfuzzycompingandsoloing.

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TUBES

Preamptubeslastlongerthanpoweramptubesandtheneedtochangethemoccursonly

afterthousandsofhoursofplaying.ItisstillbesttoturnthePOWERswitchoffwhennot

playingthroughtheMP‐1‐CHANNEL.Thiswilllengthenthelifeofthetubes.Whenreplacing

the12AX7vacuumtubes,alwaysusehigh‐gain,low‐noiseselectedtubesforbestperformance

andthelowestnoise.

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Athighgainsettingstheinherentmechanical(microphonic)noisecanbecomeanissue,sobe

carefulnottotap,kickorbumptheMP‐1‐CHANNELwhileplayingathighgains.The

mechanicalnoisewillshowupinyoursound.

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QUICKHOOK‐UP

Whenusingacomboamporaheadandguitarcabinet.

1. SetthePOWERswitchontheMP‐1‐CHANNELtoitsOFFposition.

2. PluginthesuppliedACadapter(12VDCat800mA,2.1mmplug,centernegative)to

theMP‐1‐CHANNEL.

3. TurnonthesourcepowertotheACadapter.

4. Setallthecontrolsto12:30o’clockexceptOD1,whichissetatfullcounter

clockwise.

5. SetVOICINGswitchtoCLEAN

6. SettheTRUEBYPASSfootswitchtobypass,LEDoff.

7. ConnectyourguitarviaahighqualitycabletotheINPUToftheMP‐1‐CHANNEL

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8. ConnecttheOUTPUToftheMP‐1‐CHANNELtothepowerampinsertjackoreffects

returnjackofyourcomboorhead.

9. SetthePOWERswitchontheMP‐1‐CHANNELtoON.Inabout20secondsthe

vacuumtubeswillwarmupandsignalwillbeavailableattheOUTPUTjack.

10. Turnonyourcomboorhead.

11. Setyourguitarvolumeknobtofullandadjustthevolumeoftheamplifiertoa

suitablelevel.

12. SettheTRUEBYPASSfootswitchtoon,blueLEDison.

13. SlowlyturnuptheOD1control.Youshouldheartheguitarinyourspeaker.

14. AdjusttheOD1andOD2fortheamountofoverdriveyouwant.

15. AdjusttheBASS,MID,TREBLEandPRESENCEcontrolsforthetoneyouwant.

16. AdjusttheMASTERforthevolumelevelyouwant.

17. SwitchtheVOICINGtoDISTORTION,andadjustyourMASTERforthevolumelevel,

andmaketonalchangesusingtheBASS,MID,TREBLEandPRESENCEcontrols.

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VACUUMTUBEREPLACEMENT

Ifyouwanttoreplacethe12AX7vacuumtubesintheMP‐1‐CHANNEL,youmusttakethe

bottompaneloff.WARNINGtherearehighvoltagesinsidetheMP‐1‐CHANNEL,sowe

recommendaqualifiedservicepersonforthistask.

1. UnplugtheACadapterfromtheMP‐1‐CHANNELandletitsitforatleast1hour.

Thiswilldischargetheinternalhighvoltage.

2. RemoveONLYthesixscrewsshowninthephotographsbelow.Notethatone

screwatthelowercenterofthebackpanelhasalockwasher.Thiswasherand

screwmustbereplacedwhenputtingthebottompanelback.Donotremovethe

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otherscrewtowardsthecenterofthebackpanel.Thisscrewalsohasalock

washerandservesasthegroundconnectionfortheenclosure.

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3. Thebottompanelcanbeslidoff.Notethatthebottompanelhasacutoutforthe

INPUTandOUTPUTjacks,andmustbere‐installedthesamewaywiththiscutout

aroundthejacks.

4. Thevacuumtubescanbepulledoutoftheirsocketsand,whenreplaced,besure

thateachisfullyseatedinthesocketandstraight.

5. Anotherwaytodischargethehighvoltageistoplaceametal‐tippedscrewdriver

betweenthetwopointsontheprintedcircuitboardasshowninthepicturebelow.

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6. Notethetubenearesttheedgeofthefrontoftheenclosureisthefirststageofthe

MP‐1‐CHANNELcircuitandisthemostcriticaltubeforminimizingnoiseand

microphonics.Thefirsttriodestageispins7,8,9ofthe12AX7.

7. Whenreassemblingtheenclosure,donotovertightenthescrews.

8. Ifthereishumintheaudiosignal,checktherearpanelscrewwiththelockwasher

forpropertightnesssothelockwashermakeselectricalcontactwiththeenclosure.

9. Useonlyhighquality,low‐noise12AX7s.

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TROUBLE‐SHOOTING&TECHNICALSUPPORT

1. Whataresomequickteststotroubleshootmyunit?

Sometimesafewquicktestsathomecanbethedifferencebetweenthinkingyourunitis

brokenandgettingitworkingproperly.Hereisalistofquicktrouble‐shootingstepstotest

yourgearandunit.Asbasicasthesesoundpleaserunallthetests.

a. Checksimplesignalchain:Plugyourcablefromyourguitarintoyouramp.Ifyou

haveadirectconnecttonegotostep2.Ifnotyouhaveabadcable,guitaroramp.

b. Check2ndcable:Takeyour#2cableandswitchitwiththefirstcable.Ifyouhave

sound,wenowknowbothcables,yourguitarandamp,work.

c. Checkpower:Plugyourampintothesameoutletthatyou’reusingtopoweryour

ADAproduct.Iftheampturnson,thentheoutletworks.Ifnottryanotheroutletto

poweryourunit.

d. ChecknativeADASignalChain:Plugthe#1cablefromyourguitarintoyourADA

product(input).Plugthe#2cablebetweenyourADAproduct(output)andinto

youramp.MakesuretheADAispluggedintoaworkingpowersource.DONOT

insertitinapedalchain,i.e.,donotintroduceanyotherpedalsintothesignal

Page 9

chain.IfyourADAproductworks,yourpedalchainmostlikelyhasaproblem.If

youhearnothing,thentheirmaybeaproblemwithyourindividualunit.Pleasesee

theFAQonhowtogetanRAnumber.



2. WhatdoIdoifmyproductisnotworking?

IfyourproductisnotworkingweSTRONGLYsuggestthatyourunaseriesofquickteststo

troubleshoottheunit(seeabove).Theymaysoundverybasic,butitcansaveyoutimein

gettingyourunitworkingandyoubacktoplaying.Ifyouareaninternational(non‐USA)

customer,youmustcontactyourlocaldealerand/oryournationaldistributorforrepair.Ifyou

areintheUSAandtheunittrulydoesnotwork,email[email protected]togetaReturn

Authorization(RA)numberfromus.



3. WhatdoIdoafterreceivingmyRAnumber?

Youwillneedtoboxyourunit,writeyourReturnAuthorization(RA)numberontheoutsideof

theshippingboxinalargeboldlettering,andsendittotheaddresssuppliedwiththeRAyou

receivedfromus.YouareresponsibleforshippingtoandfromADA,sopleasetrackandinsure

yourparcels.ADAcannotbeheldresponsibleforparcelsthatarelostordamagedinthe

shippingprocess.ADAcannotacceptyourshipmentifthereisnoRAnumberwrittenonthe

outsideofthebox.



Page 10

SERVICE

Ifyourunitrequiresservice,pleasegotoourwebsite’sSERVICEpageforinformationtohelp

youfindasolutiontotheproblemyouarehavingwithyourMP‐1‐CHANNEL.Wehave

providedyouwithastep‐by‐steptroubleshootingproceduretogetyoubackupandrunningif

youareexperiencingasimpleproblem.

RETURNINGUNITSFORSERVICE

IfyoustillneedtosendinyourADAproductforservice,YOUMUSTFIRSTGETARETURN

AUTHORIZATIONNUMBER(RA)BEFOREYOUSHIPTOOURSERVICECENTER.Itemsshippedto

uswithoutanRA,willnotbeacceptedbyourServiceCenterandwillbereturnedtoyoubythe

shipper.YoucangetanRAnumberbyfirstcontactingusonlineat:

www.adaamps.com/service.Youwillneedtohaveyourserialnumber,approximatedateof

purchaseandthenameoftheplacethatyoupurchasedyourMP‐1‐CHANNEL.DONOTSHIP

YOURMP‐1‐CHANNELTOOURSERVICECENTERBEFOREGETTINGANRA(Return

AuthorizationNumber)FROMUS.

Shipto:

ADAAmplification

1170BurnettAvenue

SuiteN

Concord,California94520

UnitedStates

Table des matières

Autres manuels A/DA Amplificateur

A/DA

A/DA SSD-66 Manuel utilisateur

A/DA

A/DA MP-1 Manuel utilisateur

A/DA

A/DA APP-1 Manuel utilisateur

A/DA

A/DA Suite 7.1 Guide de démarrage rapide

A/DA

A/DA MP-2 Manuel utilisateur

A/DA

A/DA PTM-6150 Manuel utilisateur

A/DA

A/DA Microcab II Manuel utilisateur

A/DA

A/DA MP-1 Manuel utilisateur

A/DA

A/DA Cinema Rhapsody Mach II Manuel utilisateur

A/DA

A/DA Suite 7.1 HD Manuel utilisateur

A/DA

A/DA MB-1 Manuel utilisateur

A/DA

A/DA Cinema Rhapsody Manuel utilisateur

A/DA

A/DA T100S Manuel utilisateur

A/DA

A/DA MP-1 Manuel utilisateur

A/DA

A/DA MP-1 Manuel utilisateur

Manuels Amplificateur populaires d'autres marques

ASTRO

ASTRO HVO V40 P Manuel utilisateur

Marantz

Marantz SUPERSCOPE BLA-545 Instructions de montage

NAD

NAD CI980 Manuel utilisateur

Technics

Technics SE-CH770 Manuel utilisateur

Harman Kardon

Harman Kardon HK6300 Manuel utilisateur

NAD

NAD T975 Manuel utilisateur

McIntosh

McIntosh MA6850 Manuel utilisateur

Electro-Harmonix

Electro-Harmonix ENGLISH MUFF’N Manuel utilisateur

Viatron

Viatron Autrix Manuel utilisateur

GME

GME GA9800 Manuel utilisateur

Atlas

Atlas CP700 Manuel utilisateur

Roland

Roland KC-1000 Manuel utilisateur

Pyle

Pyle PFMRA350BW Manuel utilisateur

Advantage

Advantage S-250 Manuel utilisateur

IRT Electronics

IRT Electronics DVA-3007 Manuel utilisateur

Dimavery

Dimavery BA-100 Series Manuel utilisateur

Sony

Sony XM-S400D Manuel utilisateur

Schertler

Schertler ROY X Manuel utilisateur