BMT Tube Wizard IV Manuale utente

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TUBE

WIZARD



Guitar

Preamp



OWNER’S

MANUAL

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CONTENTS

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1. Introduction……………………………………3

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2. Safety precautions and warnings.…………4

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3. Complete set…………………………………..5

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4. General information………………………….5

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5. Controls…………………………………………6

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6. Specifications………………………………….9

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1. INTRODUCTION

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Dearuser!



WearepleasedtointroduceyoutheguitartubepreampTubeWizardIV.Designedfor

modernguitarists,TubeWizardIVisALLTUBEandhasthreeseparatechannelsofaudio

processing:



CLEAN‐cleanandslightlyoverdrivensound

CRUNCH‐averagelevelofoverdrive

LEAD‐highlevelofoverdrive

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AllchannelshaveseparateEQs,whichgivesyouapossibilitytocreategreatdiversityof

soundcharacters.

SOLOswitchletsyouadjustthevolumewhenyouplay.Thisisakeyfunctionduringlive

performances.

PreampisequippedwithFXLOOP(paralleltoserialadjustable),whichiscrucialwhenyou

arelookingforbalanceinpreamp/effectsound.

Preamphasaprogressivecabinetemulationsystem,sothatyougetanexcellentguitarsound

notonlywhenconnectedtoaguitaramporpoweramp,butwhenyouplay"in‐line"andin

headphones.

TubeWizardIVwillsurpriseyouwithavarietyofoptionsandshadesofsound–youcanget

everythingstartingfromcrystalcleansoundtoamassivelyoverloadedroar!

YouarewelcometogetacquaintedwithallthepossibilitiesofTubeWizardIV,andafterthat

–justexperiment!Taketimetofamiliarizeyourselfwiththewiderangeofsoundsthepreamp

offers.

TubeWizardIVwillrespondtoeverynuanceofyourperformance!



Bestwishes,

BMTTeam

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2. SAFETY PRECAUTIONS & WARNINGS

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PLEASE, ALWAYS OBSERVE THESE PRECAUTIONS:

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 CAUTION!DANGER!Highvoltage!Riskofelectricshock!Thedeviceisunderhigh

voltage,life‐threatening.Toavoidelectricshock,donotremovetheinstrumentcover

anddonottrytomakerepairs.Therearenouserserviceablepartsinside.

 Keepthedeviceawayfromchildren.

 Beforeusing,makesurethedeviceisproperlygrounded.

 Inordertoavoidfireorelectricshockthedevicemustnotbeexposedtorainor

moisture.Donotplaceobjectsfilledwithliquidontopofthedevice.

 TubeWizardIVisequippedwithagroundedpowercordtopreventpossibleelectric

shock.ThepowercordmustbeconnectedtothegroundedACsockets.Donot

disassembletheACpowerreceptacle.

 Whenreplacingthefuse,disconnectthepreampfrommainsandusefusesofthe

correcttypeandrating.

 Laythemainscablesothatitisnotsteppedonandavoiditscontactwithsharp

subjects.

 WARNING!Allserviceinstructionsareintendedonlyforqualifiedpersonnelinorderto

avoidelectricshock;donotcarryoutanyrepairworkswhicharenotdescribedinthe

instructionmanual.Repairworksmustbecarriedoutonlybyqualifiedexperts.



To avoid possible damage of the preamp:



 Donotblockorcoverventslots.

 Incaseofthunderstormorfiredisconnectthedevicefromthemains.

 Ifthedeviceisnotusedforonehourormore,disconnectitfromthemains.

 Donotstoreoroperatethedeviceinhighhumidityconditions.

 Donotplacethedeviceindirectsunlightornearaheater.

 Donotdroporthrowthedevice.

 Whenconnectingtoamainssupply,makesurethatthepowersupplycomplieswith

thedevice(correctvoltageforyourregion)

 Changeaudioconnectionsonlywhenthedeviceisturnedoff.

 Donotapplyexcessiveforcetotheswitchesandcontrols.

 Tocleanthepreampdonotusesolvents,usecleananddrycloth.

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3. COMPLETE SET

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Thecompletesetincludes:



 TheguitarpreampTubeWizardIV

 Thepowercord

 User’smanual(printedorpdfversion)

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4. GENERAL INFORMATION

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ThepreampTubeWizardIVhasthreeseparatechannelsCLEAN,CRUNCHandLEADand

traditionalpassiveEQswithadjustableBASS,MIDDLEandTREBLE,regulatorsGAIN,VOLUME

andSWEEP(regulatorofthefrequencylevel).DRIVEMODEswitchgivesyou+9optionsof

overloadcharacteronLEADchannel.Thisallowstocreateasoundwhichisclosetothesound

ofpreampsofmanyfamousamplifiers.SOLOswitchletsyouadjustthevolumewhileplaying.

Thisisakeyfunctionduringliveperformances.



Controlsinchannellines(GAIN,SWEEP,BASS,MIDDLE,TREBLE,VOLUME)performsimilar

functionsintherespectivechannels.FXMIXcontrolregulatestheratioofsignalpreamp/

effect.

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TheVOLUMEcontrolinMASTER‐sectionchangestheoverallvolumeofthepreamp.The

preampisequippedwithBUILT‐IN2WPOWERAMPwhichallowsyoutoconnectthepreamp

directlytotheguitarcabinet,HiFispeakersystemorheadphones,whichisreallyconvenientif

youdonothaveanexternalpoweramplifier.

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5. CONTROLS

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For convenience, we will explain the controls, using the analogy with the position of the clock (for example:

GAIN control in position 11:00).

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FRONT PANEL:

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1. GAIN (sensitivity) controls not only regulate the total gain and sensitivity of the corresponding

channel, but also significantly change the character of the sound. Low settings (7: 00-11: 00) create the

most clean and clear timbre with high dynamic range (especially at high frequencies). If the level of

control is raised the sound becomes more dense and congested, especially on drive channels.

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2. SWEEP (shift) control determines the overall sound spectrum of the channel. At low levels (7:00-

11:00) low frequencies are emphasized, at medium (11:00-2:00) the entire frequency range increases

evenly, and at high levels (2:00-5:00) high frequencies are highlighted.

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3. BASS (low) control determines the amount of low frequencies in the output signal of the preamp.

Excess of low frequency makes the sound of the instrument illegible and boomy. For clean rhythm

tones it is recommended to set the BASS at the middle level (12: 00-2: 00), and for overdrive rhythm

tones with high gain at the level 11:30 or less.

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4. MIDDLE control affects the mid-frequency range of the signal. Strengthening of the midrange allows

to create a more "cut-through" and vivid sound. In some cases, it can be used to brighten the guitar

sound from the overall sound of the band. Low levels of the control cut midrange frequencies, giving a

characteristic sound, often used in heavy music.

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5. TREBLE (high) control determines the level of treble in the signal and is the most effective of all the

timbre regulators. You need to know that TREBLE levels, that are too high or too low, can lead to an

unbalanced sound. At high levels of the control (3: 00-5: 00) the sound is bright and "glassy". At low

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levels (7: 00-10: 00) the impact of this regulator decreases and the sound becomes “warmer”. It is

recommended to use this control with great care, it will give the best results.

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6. VOLUME control sets volume of the corresponding channel.

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7. DRIVE MODE switches change the sound on LEAD channel. A / B / C switch changes the timbre of

the sound on LEAD channel. 1/2/3 switch changes the character of the overdrive on LEAD channel.

Thanks to these switches you can get the sound character which is close to preamps of many famous

sound amplifiers. If you want to get a “clean” sound on CRUNCH channel when volume of guitar is

decreased, then 1/2/3 switch should be installed in position 1.

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8. CLEAN / DRIVE and CRUNCH / LEAD footswitches allow to switch between the channels. When

CLEAN channel is on, the green LED near the switch CLEAN / DRIVE glows. When CRUNCH

channel is on, green LED near the switch CRUNCH / LEAD glows. When LEAD channel is on, the

LED turns red.

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9. SOLO footswitch is used to activate the SOLO mode (change in volume). When you activate SOLO

mode, yellow LED near the corresponding switch glows.

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10. FX LOOP footswitch is used to connect the pedal effects or processors plugged in the loop ( send and

return ) of the preamp. When you activate FX LOOP red LED near the switch FX LOOP glows.

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11. MASTER-section controls: VOLUME sets the level of total volume of the preamp; SOLO changes the

level of volume on the corresponding mode when SOLO mode is on; FX MIX sets the ratio of signal of

the preamp and effects/processors pluggged in the loop of the preamp. When FX LOOP is on, turning

the control clockwise increases the signal level from effect/processor, when installing FX MIX control

to the rightmost position the entire signal passes through effect/processor, so loop turns into a serial. If

the effects are not used in the loop and the signal is taken from the OUTPUT 2, it is recommended to

set the FX MIX control to the leftmost position.

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REAR PANEL:



12. The power cord is connected to the power receptacle. For safety reasons, the power cord should be

connected only to grounded AC sockets with the voltage level used in your country ( Europe – about

220-230V, USA – 120V ). The main fuse compartment is at the top of the power receptacle. Use the

0.3A fuse for Europe, and 0.5A fuse for USA. To replace the fuse, disconnect the device from the

mains, push the fuse compartment, replace the fuse and install the cover back into its place.



13. TO PHONES OR HiFi CAB output is created to connect headphones or HiFi speaker system, and also

the mixing console or to the digital audio interface. The main feature of this output is that it emulates

the sound of a full PA system.

In this output connections are made only with stereo jacks to avoid damaging the preamp.



14. TO GUITAR CAB output is for connection of the preamp to the guitar cabinet.



15. OUTPUT 2 connects the preamp to the input of the power amplifier or to the RETURN of guitar amp

(depending on the type of amplifier). Use only OUTPUT 2 for connection with the external power amp

, when the effects are plugged in in the loop, for connection to the mixer / digital audio interface - only

TO PHONES OR HiFi CAB output.

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16. The OUTPUT 1 OR SEND serves to connect the preamp to the input of an external power amplifier, to

the RETURN of guitar amp or to the input of the external effect / processor. The level of signal to the

external effects adjusts with the VOLUME MASTER-section control. The level of signal from

OUTPUT 1 is about 3 times less than from the OUTPUT 2.

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17. RETURN input (return of an effect) is used to connect the external effect / processor.



18. INPUT is meant for guitar connection.

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19. POWER switch is designed to connect the preamp to the mains. Power is on, when the switch is set to

ON position.



20. PHONES OR HiFi CAB / GUITAR CAB switch is used to select the type of load. When the switch is

in the PHONES OR HiFi CAB position, connect the phones or HiFi speaker system to the TO

PHONES OR HiFi CAB output. When the switch is in GUITAR CAB position, connect the guitar cab

to the TO GUITAR CAB output. If the guitar cabinet is not used, it is recommended to set the switch to

PHONES OR HiFi CAB.

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6. SPECIFICATIONS

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 Tubes: 2 x 12AX7

 Input impedance: 1MOhm

 Output 1 and Output 2 impedance: 2 kOhm

 Poweramp output impedance: minimum 8 Ohm

 Power output: 2W

 Power supply: Standard 220 V 50/60 Hz / or

Custom made varies from country or region

 Power consumption: not more than 18W.

 Dimensions: L x W x H about 260 x 210 x 85 mm

( 10.3 x 8.3 x 3.4 inches )

 Weight: about 2.1 kg ( 4 lb 10 oz )

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Dear user! Thank you for choosing our preamp.

Tube Wizard IV will be reliable and creative assistant during your journeys in the world of music.



If you have any questions, please get in touch with us on

[email protected]



We wish you lots of inspiration!

Play and enjoy!

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