Mesa/Boogie Mini Rectifier Twenty-Five User Manual

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TosimplifytheGAINControlsroleinshapingtheoveralltoneofthesoundwewilllook
atitintwoways:1)aloneand2)inconjunctionwiththetonecontrols.
1)GAINControlhasthreetonalregions:LOW(7:00-11:00)providesthecleanest,
leastsaturatedsoundsandinthisregionthesoundwillbebrighterandcontainmore
upperharmonicslendingathreedimensionalcharactertothesound.
MIDDLE(11:15-2:00)enhancesthesaturationandreplacessomeoftheupperharmon-
icswitharicher,warmerqualityandafullerbottomendresponse.Notyetfullysaturated,
thisregionistheeasiestplacetogetagreatsoundinbothchannels.Thisregioncontains
manyoftheRecto’sbestsounds...especiallyforsoloingduetothecrucialblendofan
expressiveattackcombinedwithamplesustain.
HIGH(2:15-5:00)saturatesthesignalandenhanceslowandlowmidfrequencies.While
thisregionprovidesthemaximumsaturationandsustain,italsocompressesandsoftenstheattackcharacteristics.Forthis
reasonwesuggestusingthishigherregionoftheGAINControlsparinglyandonlywhenmaximumsustainisneeded.
NOTE:DuetotheRecto’sextremegainpotential,thehighestregionsoftheGAINControlmaypossiblypushthepre-amptubes
pastwhattheycanhandle,producingmicrophonicsquealing.Whilewescreenandtestthetubesyouramplifierwasshipped
withandthetubesinyouramppassedourrigouroustest,wecan’tpredicthowthetubeswillrespondovertimeexposedto
extremegainsettings.Yourtubesarewarrantedforaperiodof6monthsundernormaluse,butyoucansaveyourselfthe
presentandfutureinconvenienceofhavingtodealwithannoyingmicrophonictubeproblemsbysimplyusingalittlecommon
sense...Don’tturntheGainallthewayup!
Ifyoumustforaspecificpartoratverylowvolumes,backdowntheTREBLEandPRESENCEControls.YourRectowasde-
signedtoprovideamazinggainandtoneatlessthanextremesettings-removingtheneedforyoutocrankeverythingallthe
wayup.Ifyouarenotabletoachievethesoundyouwantatsensiblesettingsonanyorallofthecontrols,yourproblemmay
lieelsewhereinthesignalchain,i.e.pick-ups,cabinetry,processingetc.Keepinmindyoucanalwayscallononeofourprod-
uctspecialistMondaythroughThursdayandseeksomeadviceshouldyoufindyourselfstrugglingtogetthesoundyouwant.
2)GAIN-InconjunctionwiththeToneControls-Basically,asimpleruleapplies...astheGainisincreasedtheTonecontrol
stringhaslessandlesseffectonthesignaluntilat5:00,thesignalissosaturatedthatyouaregettingmostlyGainandvery
littleTone.Again,thisisthereasonwesuggestusingtheGAINControlinitsmiddleregion.Here,theTonecontrolstringisvery
activeandprovidesmaximumshapingpower-allowingyoutodialvirtuallyanysoundyoudesire.
TREBLE
Asinmosttubeguitaramplifiers,theTREBLEControl(inbothchannelsofyourRecto)isthemostpowerfulof
thetonecontrolsandisnextinlineonlytotheGAINControlasashapingtool.Becauseitisfirstinthesignalpathofthetone
controls-andfromheretheMiddleandBassreceivetheirsignal-itisbyfarthedominanttonecontrol.Forthisreasontheset-
tingoftheTREBLEControlisveryimportantforequalrepresentationofthethreefrequencyregionstoappearattheirrespective
controls.LikemostofthecontrolsonyourRecto,thereisanoptimumregionoftheTREBLEControlwhere
ampletopendismixedinandyetenoughsignalisstillpassedontotheMIDDLEandBASSControls.
Asyoumightsurmise,11:00-1:30isthesweetspot.Therearedefinitelygreatsoundsaboveandbelowthis
middleregion,butthebalancebetweentheTREBLEControlandtheothertwotonecontrolsiscompromised.
TheoneplaceyoumaywanttothrowcautiontothewindandsettheTREBLEControlabovethismedian
zonepresentsitselfinChannel1ofyournewRecto.Inbothmodes(Clean&Pushed),theTREBLEControl
canbeusedtodumpextragainintothemix.ThisisespeciallyeffectiveinthePUSHEDmodeforcrunch
sounds.WhendoingsousethePRESENCEControltorolloffsomeofthemorethanampletopendfora
morecompressedfeelandfattervoice.TheBASSControls’effectivenesswillbereduced,soyoumayhavetorunamuch
highersettingthanyouareusedtoseeingtoachieveabalance.Thissaid,keepinmindthattheTREBLEControlinChannel1
Pushedshouldnotbesetmuchabove3:00toavoidunwantedmicrophonictubeproblems.
GAIN
CLEAN
PUSHED
VINTAGE
MODERN
GAIN REGIONS
Brightest
Most Balanced
Warmer & Saturated
TREBLE
SWEET SPOT

Mesa/Boogie Mini Rectifier Twenty-Five Specifications

General

Brand	Mesa/Boogie
Model	Mini Rectifier Twenty-Five
Category	Musical Instrument Amplifier
Language	English