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The lightning flash with arrowhead symbol IMPORTANT SAFETY within an equilateral triangle, is intended to alert the user to the presence of INSTRUCTIONS uninsulated "dangerous voltage" within the product's enclosure that may be of • Read these instructions. sufficient magnitude to constitute a risk of • Keep these instructions. electric shock to persons. • Heed all warnings. • Follow all instructions. The exclamation point within an • Do not use this apparatus near water. equilateral triangle is
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Table of Contents Introduction....................................................................................... ii Welcome aboard! .............................................................................ii Main features....................................................................................ii Signal path ...................................................................................... 1 Valve Reactor Technology .........................................
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Introduction WELCOME ABOARD! hanks for choosing the VOX AD15VT, AD30VT, AD50VT, AD100VT or AD100VTH Valvetronix amp. To ensure a long and trouble-free relationship with your new amp, T please read this manual carefully, use the amp as directed and keep the manual for future reference. MAIN FEATURES • The AD15VT, AD30VT, AD50VT, AD100VT and AD100VTH use Valve Reactor tech- nology, and feature a power amp circuit containing a 12AX7 (ECC83) dual triode valve (“vacuum tube”) that w
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SIGNAL PATH Your guitar sound passes through the following sections. (You can refer to “The Guitarist’s Guided Panel Tour” while you read the explanation that follows.) Power Amp model Speaker Class A Master Vol Effect Effect Pre Amp model MODULATION Class AB AUTO WAH / COMP Choose one of 11 types DELAY / REVERB Determined by the Pre Amp selection VALVE REACTOR TECHNOLOGY THE POWER (AMP) AND THE GLORY! alve Reactor technology was first used on the VOX AD60VT & AD120VT
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Apart from the vital valve tone this ingenious power amp design provides, it also allows us to replicate various “circuit characteristics” that are unique to the all-valve power stages of the amps we’ve modelled. These “characteristics” include: Class A or Class AB operation, Presence and Resonance (low end) control circuitry (both found in the negative feedback circuit that some, but not all, valve power amps have) and power output. Being able to match such vital characte
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CHECKING OUT THE PRESET PROGRAMS 1. Press the top panel PRESET button. The PRESET LED will light (this means you’re in Preset mode). 2. Turn the AMP selector to select an amp type. For each amp type you select, a preset containing a typical sound for that type will be selected; i.e., the GAIN, VOLUME, TREBLE, MIDDLE, BASS, and effect set- tings will be switched automatically. If you want to hear the amp without effects, press the effect bypass
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The Guitarist’s Guided Panel Tour In this chapter we’re going to take a look at the top and rear panels of your Valvetronix amp. A. Top Panel 1 2 4 3 5 1. INPUT SECTION This is where you plug in your guitar. 2. AMP SECTION Here’s where you make your settings. AMP selector switch This selects one of the amp type models. As mentioned earlier, each model repli- cates the preamp (with its gain and tonal response), the power amp operation (class A or AB), negative feedback circuitry (or la
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TREBLE, MIDDLE, and BASS This trio of knobs allow you to dial in the exact amount of high, mid, and low fre- quencies. Also, as you’d expect (and hope!), the exact manner in which each one of these controls behaves and also interacts with the others is dependant on the amp model selected. Turn to the “Amp models and effects” section (page 17) for more information. NOTE: In keeping with the originals, certain models will produce almost no sound if all of these three tone controls are turned a
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TAP (EDIT 2) and LED This button enables you to set the speed of a modulation-type effect (such as CHORUS or FLANGER) the delay time REVERB length; simply press the button twice at the desired interval. The LED blinks at the specified speed or time. HINT: To set the time to exactly match the tempo of a song, press the TAP button sev- eral times along with the song. HINT: You can also adjust the speed or time, by holding down the TAP button and turning the EDIT 1 knob. (This is the EDIT 2 mode)
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WRITE button Use this button to save a new program into CH1 or CH2. Refer to “Storing your program” (page 14). 5. POWER SWITCH When the power is on, the indicator located above the switch will be lit. B. Rear Panel AD15VT/AD30VT/AD50VT AD30VT/AD50VT only AD50VT only AD100VT AD100VTH AC power This is where you connect the included power cord. FOOT SW You can connect the optional VFS2 dual foot switch (sold separately) here, and use it to switch programs or bypass the effect while you perform.
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NOTE: The AD15VT doesn’t have this control. NOTE: The power level setting isn’t saved as part of the program. This control lets you get that highly desirable, fat, warm sound of the Valvetronix power stage being driven hard (a common trait of all great valve power amps), at various levels. This will enable you to play comfortably in a small room or compro- mising your all-important tone. LINE/PHONE Use this jack if you’re plugging directly in to a mixer, recording device, or if you’re using h
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SPEAKER OUT jacks, OUTPUT SELECT switch Connect your speaker cabinet(s) to the SPEAKER OUT jack(s). Refer to the table below, and set the OUTPUT SELECT switch to the appropriate setting for the cab- inet(s) you’re using. NOTE: Only the AD100VTH has these jacks and this switch. Speaker cabinet OUTPUT SELECT Maximum output impedance and number switch (AD100VTH) (impedance) 8Ω x 2 Serie 50 W (16Ω ) 16Ω x 1 Parall 50 W (16Ω ) 8Ω x 1 + 4Ω x 1 Serie 75 W(12Ω ) 4Ω x 2 Serie 100W (8Ω ) 8Ω x 1 Parall 1
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About the three operating modes he AD15VT/AD30VT/AD50VT/AD100VT/AD100VTH contains eleven “preset pro- grams.” To select one of these, enter Preset mode (which simply means, press the T PRESET button) and turn the AMP selector. There are also two rewritable “channel programs” which you can select by press- ing the CH button or by using the optional VFS2 foot switch. PRESET MODE (SELECTING A PRESET PROGRAM) In Preset mode, simply turn the AMP selector to select a preset program that contains “ty
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SWITCHING CHANNELS With either the CH1 or CH2 LED lit, press the CH switch. The channel will change each time you press the button, and the program stored in each channel will be recalled. (The physical settings of the top panel selector knobs and control knobs are ignored at this time.) HINT: If the optional VFS2 dual foot switch is connected to the rear panel, you can use it to switch programs. For details, refer to “Using the VSF2 dual foot switch” (page 16). HINT: If you want to bypass
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Creating and storing your own program here are two ways you can do this; by tweaking an existing preset program that’s close to what you have in mind, or by starting from scratch. T CREATING YOUR OWN PROGRAM Let’s start from scratch. 1. Choose any program in Preset or Channel Select mode, or select Manual mode. HINT: Since we’re starting from scratch it doesn’t matter what program you choose. 2. Use the BYPASS button to bypass the effect. (The BYPASS LED is lit.) If you want to use an effect
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HINT: For details on the effects, refer to “Amp models and effects” (page 17). 8. When you’ve come up with a sound you like, store the program. NOTE: In Preset or Channel Select mode, the changes you made will be lost if you switch to a different program or Manual mode or turn off the power without storing the program first. NOTE: The effect bypass setting isn’t stored as part of the program. ADJUSTING THE NOISE REDUCTION Here’s how to adjust the noise reduction HINT: When using a high-gain amp
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STORING YOUR PROGRAM When you’ve come up with a sound you like, you should store (write) the program. 1. Press the WRITE button. The CH1 or CH2 LED will blink. 2. Press the CH button to select the channel in which you want to store your program. The program will be stored in the channel whose indicator is blink- ing. HINT: If, during this process, you decide that you really don’t want to store the pro- gram, you can press the TAP button to cancel at this point. The LED will stop blinking, and
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RESTORING THE FACTORY SETTINGS Here’s how you can restore the factory settings. NOTE: If you do this, the programs you saved in the channels will be completely erased, and will be reset to the factory settings. NOTE: Effect and noise reduction settings made in the Manual mode will also be erased. 1. Turn the power off. 2. While holding down both the CH and WRITE buttons, turn the power on. When the CH1 and CH2 LEDs begin blinking, release these two buttons. HINT: If you decide to abort this op
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Using the VFS2 dual foot switch f the optional VFS2 dual foot switch (sold separately*) is connected to the rear panel FOOT SW jack, you can use it to switch programs or turn effect bypass on/off. I VFS2 left switch (switch 1): Switches channel programs VFS2 right switch (switch 2): Switches bypass on/off, or turn Manual mode on SWITCHING THE CHANNEL PROGRAM (SWITCH 1) Each time you press the VFS2’s left switch (switch 1), you’ll alternate between CH1 and CH2. NOTE: Switch 1 has the same func
