Vintage Revolution Acoustic box live1.0 rel A Owner's manual

Brand: Vintage Revolution

Model: Acoustic box live1.0 rel A

Category: Musical Equipment

Type: Owner's manual

Acoustic boxTM live1.0 rel A

Owner’s Manual

Introduction

1.2 SUMMARY OF FEATURES

• Impressivesoundquality

• Independentparametricequalizerperchannel

• IndependentvolumecontrolforPAoutandAmpout

• 48Vphantompower

• Mastermute

• Compactsizeandlight

• ManufacturedinItaly

• Neutrikaudioconnectors

• IntegratedtoroidalpowersupplyUS-EUselectable

1.1 MESSAGE TO THE USERS

ThankyoufromallofusatVintageRevolutionforpurchasingtheAcoustic

Boxpreamp.Wehopeitwillprovetobethebestinvestmentofyourmusical

career.

OurobjectiveindesigningtheAcousticBoxwassimple:toeliminatecompro-

mise.Webelievethatthisdevicewillexceedevenyourwildestexpectations

forlivestageorstudiorecording

Enjoyyourpurchase.

From the team at VR

Rev. 2.0 - EN EU - fw 5.22

IMPORTANT SAFETY INSTRUCTIONS

Thisproducthasbeendesignedandmanufacturedtomeetstrictsafetyandqual-

itystandards.Itisveryimportantthatyouareawareofthefollowinginstallationand

operationprecautions:



1. Read and keep these instructions and heed all warnings

Youshouldreadallthesafetyandoperatinginstructionscarefullybeforeoperat-

ingthisapparatus.Retainthismanualforfuturereferenceandadheretoallwarn-

ingsinthemanualorontheapparatus.

2. Water and moisture

Thepresenceofelectricitynearwatercanbedangerous.Donotusetheappara-

tusnearwater–forexamplenexttoabathtub,asink,inawetbasementornear

aswimmingpool,etc.

3. Object or liquid entry

Takecarethatobjectsdonotfallandliquidsarenotspilledintotheenclosure

throughanyopenings.Liquidlledobjectssuchasvasesshouldnotbeplacedon

theapparatus.

4. Cleaning

Unplugtheunitfromthemainssupplybeforecleaning.Thecaseshouldnormally

onlyrequireawipewithasoft,damp,lint-freecloth.DONOTusepaintthinnersor

otherchemicalsolventsforcleaning,whichwilldestroyprintsandpaintwork.DO

NOTusealcoholorhouseholdcleaningproducts.DONOTUSEWATER.

5. Power sources

Onlyconnecttheapparatustoapowersupplyofthetypedescribedinthe

operatinginstructionsorasmarkedontheapparatus,andinstalltheunitnearthe

poweroutlet(socket).Appliancecouplerisconsideredasdisconnectdevice.It

shallremainreadilyoperable..

6. Power-cord protection

Powersupplycordsshouldberoutedsothattheyarenotlikelytobewalkedon,

bent,stretchedorpinchedbyitemsplaceduponoragainstthem,payingparticu-

larattentiontocords,plugs,conveniencereceptaclesandthepointwherethey

exitfromtheapparatus.

7. Grounding

Ensurethatthesafetypurposeofthepolarisedorgrounding-typeplugsoftheap-

paratusisnotdefeated.Iftheprovidedplugdoesnottintoyouroutlet,contact

aqualiedelectriciantoreplacetheobsoleteoutlet.

8. Abnormal smell

Ifanabnormalsmellorsmokeisdetectedfromtheapparatus,turnthepoweroff

immediatelyandunplugtheunitfromthewalloutlet.Contactyourdealerim-

mediately.

9. Servicing and maintenance

Noneofthepartsinsidetheenclosureofthisapparatusisserviceablebytheuser.

DONOTopentheenclosureandDONOTattempttomodifytheinternalcircuitry.

Allservicingandmaintenancebeyondwhatdescribedinthismanualshouldbe

referredtoqualiedservicepersonnel.

10. Damage requiring service

Theapparatusshouldbeservicedbyqualiedservicepersonnelwhen:

• Objectshavefallenonto,orliquidhasbeenspilledintotheapparatus,or

• Theapparatushasbeenexposedtorain,or

• Theapparatusdoesnotappeartooperatenormallyorshowsamarked

changeinperformance,or

• Theapparatushasbeendroppedand/ortheenclosuredamaged.

The lightning ﬂash 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.

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.

WARNING: To reduce the risk of ﬁre or electric shock, do not expose this apparatus to

rain or moisture.

The exclamation point within an equilateral triangle is intended to alert the

user to the presence of important operating and maintenance (servicing)

instructions in the literature accompanying the product.

To reduce the risk of ﬁre or electric shock, unplug the apparatus when there

is high probability of lightning.

The apparatus MUST BE EARTHED. Use a three wire type power cord like the

one provided with the apparatus.

Working with Presets

CE & RoHS Compliance - Warranty

3.2 RoHS COMPLIANCE

ThisdevicehasbeenmanufacturedincompliancewithDirective2002/95/

EContheRestrictionoftheUseofcertainHazardousSubstancesinElectrical

andElectronicEquipment(RoHS).

This marking indicates that this product must not be dis-

posed with other household waste throughout the EU.

To dispose of your product, please use your local return

and collection system, or contact the retailer where the

product was purchased or Vintage Revolution B.V.

3.1 DECLARATION OF CONFORMITY

Acoustic box live

ConformstothefollowingProductSpecications:

Safety:  EN60065/IEC60065

EMC:  EN55103-1,EN55103-2

TheproductcomplieswiththerequirementsoftheLowVoltageDirective

73/23/EECandtheEMCDirective89/336/EECasamendedbyDirective

93/68/EEC.



3-4

Before Getting Started

3.3 DISPOSAL

4.1 BOX CONTENT

ThefollowingitemsshouldbeincludedinyourAcousticBoxlivepackage:

• TheAcousticBoxlivepreamp

• Powercord

4.2 SHIPPING, STORING AND TRANSPORTING

GreatcarewastakeninthemanufacturingandpackagingofyourAcoustic

boxpreamp.Everythingshouldbeincludedandinperfectworkingorder.

Damagedunitsshouldneverbesentdirectlytous.Pleaseinformthedealer

fromwhomyouacquiredyourPedalProofthedamage,aswellasthetrans-

portationcompanythatdeliveredittoyou.Youmustfollowthestepsabove

inordertoretainthevalidityofyourwarranty.

Rev. 2.0 - EN EU - fw 5.22

Working with Presets

Power information

Power chord: ConnectonlypowerchordsupplywiththeAboxtothisinput.Theotherendofthechordmustbeconnectedto

anearthedmainsocke

Voltage selector: SelecttheACvoltagecorrespondingtoyourlocalACpower

Fuse Holder: T0,1AH250V.Alwaysreplacethefusewiththecorrectvalue

Abox in detail

6 Channel 1 (CH1)

TheCH1isahighinputimpedancechanneldesignedforpassivetransducer

(eg.piezoormagneticpickup)anditcanhandleupto0dBuwithoutdistor-

tion.UseamonojackfromtheleftsideinproximityoftheCH1toconnectto

yourpickup.

Ifyouareproperlyconnected,yoursoundwillbemonitoredviatheCH1lamp.

6.1 Parametric equalizer (CH1)

TheCH1isequippedwithaparametricequalizerdesignedtocontrolthe

midsofyourpassivepickup.Itoperatesbetween360Hzto4KHzbycorrecting

within+/-12dB.

Ifyouuseapiezotransducer,byattenuatingatleast6dBthefrequency

around2.5KHz,youwillreducethemetallic-nasalresponcerenderingthe

soundmuchmorenatural.

6.2 Level control (CH1)

TheLEVELknobcontrolstheoutputsignaloftheCH1.Ifyouaretuningthe

CH1’sequalizerorifyoudonnotintendtouseCH2keeptheLEVELofCH2to

minimum.

7 Channel 2 (CH2)

TheCH2hasalowbalancedinputimpendacedesignedforconnectingto

eitheractiveorpassivemicrophoneviaanXLRbalancedcable.

Ifyouarecorrectlyconnectedtoyourmic,theCH2’slightwillmonitoryour

micsignalstrength.

7.1 Parametric equalizer (CH2)

Thechannel1isalsoequippedwithparametricequalizerdesignedtocontrol

thelow/lowmidsofyourmic.Itoperatesbetween100Hzto1.8KHzbycorrect-

ingwithin+/-12dB.

Abox in details

7Rev. 2.0 - EN EU - fw 5.22

7.3 Notch ﬁlter

Theprogrammablenotchlteronchannel2canbeactivatedordeactivated

usingtheswitchplacedontopofthenotchfrequencytuner.Ifyouneedto

usethenotchlterturnonthisswitchandtunethefreauencywiththecorre-

spondingknob(50Hz-250Hz)

7.4 Phase switch CH2

Thephaseswitchallowsfor180°phaseshiftbetweenCH2andCH1whenthe

switchisengaged.

7.5 Low pass shelving ﬁlter

Whenthelterisengaged,itattenuateschannel2of6dBintherange1KHz-

20KHz.Thislowpasslterisveryhandyforthosewhoperformwithadrummer

andneedhighvolumeonstage.Therefore,theadvantageofthislteristo

reduce,whenengaged,thecontributionoftheunwantedsignalscoming

fromtheotherinstruments/noisepresentsonthestage.Byreducingthemic

contributioninthisfrequencyrange,thelterallowshighervolumewithless

feedback

7.6 Level control (CH2)

TheLEVELknobcontrolstheoutputsignaloftheCH2.Ifyouaretuningthe

CH2’sequalizerorifyoudonotintendtouseCH1keeptheLEVELofCH1to

minimum.

8 Mixed channel CH1+CH2

Themixedchannelisthesignalobtainedbyaddingtheprocessedchannels

CH1andCH2.EachindividualchannelcontributionissetbytheLEVELcontrol

knob(seesection6.2and7.6)

8.1 Tone control

ToequalizethemixedchannelstheAboxusesafulltonecontrolsectionLOW-

MID-HIGHdesignedtobeeffectiveonacousticinstruments.

TheMIDtonecontrolcanbeseenasamasterMIDwhileeachparametricEQs

arenetuningandcanbeaccuratelyplacedontheproperfrequencyspot.

8.2 Phase ALL switch

Whentheswitchisengaged,thephaseALLswitchallowsfor180°phaseshift

betweenCH1+CH2andtheacousticsignal.Thisswitchishandyforcontrol-

lingthefeedbackandforgettingagoodbassresponseoftheblendedsignal

addingonyouracousticsound.

8.3 Master mute

TheMuteswitchallowssmoothlytomutesimultaneouslytheAMP-OUTandthe

PA-OUT.Thisswitchisparticularlyhandywhenthereisaneedtooperatesilent-

ly(connect/disconnectyourpiezo/mics,checktheincomingsound,etc...)

Abox in detail

8.4 Ground Lift

ThisswitchtacklesthegroundloopissueencounteredwhenAMPandPAare

simultaneouslyconnectedtotheAbox.

IfyouexerienceaHum,setthisswitchtoLIFTposition.

8.5 LEVEL AMP

TheLEVELAMPknoballowsyoutocontroltheoutputsignallevelthatisdi-

rectedintoyourAMPviatheunbalancedJACK.



8.6 LEVEL PA

TheLEVELPAknoballowsyoutocontroltheoutputsignallevelconnectedto

yourPA/MIXERviaXLRbalancedcable.

9 Acoustic Box in practice

Thissectionwillguideyoutodoyoursoundcheckinafewminutesandobtain

thebestsoundresultwiththepreamp

Beforesupplyingpowertothepreamp,makesurethatthemainsvoltageis

properlyselcted(seepage5)

9.1 Preparation

TurnontheAboxusingthepowerswitchandmutetheoutputusingthemute

switch(positionup)ontheAbox.

Connectallyourinputs(micand/orpiezo)andoutputconnections(PAand/

orAMP.

Verifyingusingthelightmonitorsthatthepickup/micareproducingasignalin

thechannel/s

PlacetheAMPandPALEVELknobsat12o’clockandsilencetheLEVELknobs

ofbothinputchannels

9.2 Using condenser/membrane mic and piezo

Thissectioncontainssomenetuningtipsforthosewhousecondensermic

(DPA4099,ATM350,AKGC414,Neumannu87,etc..)ordynamicmic(SHURE

SM57,SM58,etc..)incombinationwithpiezopickup.

IncreasetheLEVELofCH1tillyouhaveagoodaudiblevolume.

SettheMID’s(CH1)knobto15o’clockandsearchwiththecorresponding

frequency(FREQ)knobforthemostunpleasentfrequency.Ifyouareusinga

piezoitshouldbebetween12and15o’clock.Onceyouarethere,usethe

MIDknobtoremoveituntillthesoundismorenatural.Inmostofthecases

placingtheMIDknobat9o’clockwilldothejob.

Beforeaddingthemicsignal,deactivatethenotchlter,thelowpasslterand

thephaseswitchCH2bysettingthecorrespondingswitchesindownposition.

GentlyincreasetheLevelofchannel2tillthelevelofthesecondchannelis

addingthebottomend.UsethephaseswichCH2toadjustthephaseshift

betweenthetwochanelsifrequired.

Ifyouexperiencelowfrequencyresonance/feedbackturnonthenotchand

tuneituntillthelowfrequencyresononace/feedbackisremoved.

UsetheLowPassFiltertoremove6dBsomeofthemidshighfromthemic

channel.Thatmaybeusefullifyouareperformingwithadrummer.

AdjustyourLOW-MIDS-HIGHformthetonecontroloftheblendedsignalto

improvethesoundquality.

9.3 Using AKG C411 and piezo

IncreasetheLevelofChannel1tillyouhaveagoodaudiblevolume.

SettheMID’s(CH1)knobto15o’clockandsearchwiththecorresponding

frequency(FREQ)knobforthemostunpleasentfrequency.Ifyouareusinga

piezoitshouldbebetween12and15o’clock.Onceyouarethere,usethe

MIDknobtoremoveituntillthesoundismorenatural.Inmostcasesplacing

theMIDknobat9o’clockwilldothejob.BeforeaddingtheAKGC411signal

fromCH2,deactivatetheNotchandactivatethelowpass.

Abox in details

9Rev. 2.0 - EN EU - fw 5.22

PlacetheFREQ’snob(CH2)to100HzandthecorrespondingMIDknobto15o’

clock.IncreasetheLEVELuntillyouhaveenoughlowendfromtheCH@@

CH2.AdjustyourLOW-MIDS-HIGHformthetonecontroloftheblendedsignal

toimprovethesoundquality.

9.4 Using only piezo

IncreasetheLevelofChannel1untillyouhaveagoodaudiblevolume.

SettheMID’s(CH1)knobto15o’clockandsearchwiththecorresponding

frequency(FREQ)knobforthemostunpleasentfrequency.Ifyouareusing

apiezoitshouldbebetween12and15o’clock.Onceyouarethere,usethe

MIDknobtoremoveituntillthesoundismorenatural.Inmostcasesplacing

theMIDknobat9o’clockwilldothejob.

KeeptheLevelofchannel2tominimumsinceyouwillnotusethischannel.

AdjustyourLOW-MIDS-HIGHfromthetonecontroloftheblendedsignalto

improvethesoundquality.

9.5 How to avoid feedback issues when you play

with mic and piezo.

Audiofeedbackisaspecialkindofpositivefeedbackwhichoccurswhena

soundloopexistsbetweenyourmicandtheAMPorPAspeaker.

Thetwomajorparametersthatdeterminestheamountoffeedbackarethe

distancefromyourcabinetandvolumeofyourmic.

Therearetwomainfrequenciesmostsensitivetofeedback.Therstareais

theLOW-LOWMID(100Hz-250Hz)andthesecondareaistheMIDarea(400Hz-

1.5KHz).FortheLOW-LOWMIDareathenotchlterisaperfectsolution.Forthe

MIDareayoucanusetheLOWPASSSHELVINGFILTERswitchandtheMIDknob.

Bychangingthephaseoftheblendedchannel(PhaseALLswitch)youvirtu-

allymoveyourinstrumentintoanotherphysicallocationandthereforeyou

changethefeedbacksettings.

ByboostingthelowendwiththeparametriqEQaround100HZandreducing

theLEVELofCH2,youcanhaveagreatbottomendwithlowfeedback.This

ofcourseworkswellifyouareusingthemicincombinationwiththepiezo.

Withoutthepiezoyouwouldmisscompletelythesounddenition.

Abox in detail

10 Technical speciﬁcation

Connections

Input:

•CH1:JACKpassivechannel;1/4”Dia.StandardMonoJack

•CH2:XLRbalancedphantompower+48V;

Output:

•AMPOUT(MixofCH1&CH2):JACKunbalancedconnection;maximum9V

RMS@470Ohms;1/4”Dia.StandardMonoJack

•PA-OUT(MixofCH1&CH2):XLRbalancedconnection;maximum9VRMS

@100Ohms

Electrical characteristics:

CH1-Channel1(passivechannel)

•Impedance5Meg.Signallevelupto0dBu;

•AdjustableChannel1level

•ParametricequalizerofChannel1:Frequencyrange360Hz-4KHz

•MIDlevelcorrection:+/-12dB.

CH2-Channel2(activechannel,+48VPhantomPower)

•Impedance2K.SignalleveluptoCH2is-20dBu;

•ParametricequalizerofChannel2:Frequencyrange100Hz-1.8KHz;

•MIDlevelcorrection:+/-12dB;

•Notchlter:attenuation17dB.Tuningrange50-250Hz;

•Lowpassshelvinglterintherange1KHz-20KHzwithattenuationof6dB.

Tonecontrols(mixofCH1&CH2)

•Low:+/–12dBShelf@40Hz

•Low:+/–12dBBell@700Hz

•High:+/–12dBShelf@3KHz

Power IN

•110Vor230Vselectable.

•Consumptionlessthe5W

Phantom power on XLR CH2

•+48V

Size

•11x22x5WxLxHcm[4.3x8.6x1.9inches]

Weight

•920gr.[2.02pound]

Vintage Revolution Acoustic box live1.0 rel A Owner's manual

Brand: Vintage Revolution

Model: Acoustic box live1.0 rel A

Category: Musical Equipment

Type: Owner's manual

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Vintage Revolution Acoustic box live1.0 rel A Owner's manual

Vintage Revolution Acoustic box live1.0 rel A Owner's manual

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