Vox Amplification Usa Vtx150 Users Manual Neodymium Owner's

2015-02-05

: Vox-Amplification-Usa Vox-Amplification-Usa-Vtx150-Users-Manual-458777 vox-amplification-usa-vtx150-users-manual-458777 vox-amplification-usa pdf

Open the PDF directly: View PDF .
Page Count: 44

Download
Open PDF In Browser	View PDF

IMPORTANT SAFETY INSTRUCTIONS
•
•
•
•
•
•

•
•
•

•

•
•
•

•
•
•
•

Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water.
Mains powered apparatus shall not be exposed to dripping or
splashing and that no objects filled with liquids, such as
vases, shall be placed on the apparatus.
Clean only with dry cloth.
Do not block any ventilation openings. Install in accordance
with the manufacturer's instructions.
Do not install near any heat sources such as radiators, heat
registers, stoves, or other apparatus (including amplifiers) that
produce heat.
Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades with
one wider than the other. A grounding type plug has two
blades and a third grounding prong. The wide blade or the
third prong are provided for your safety. If the provided plug
does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet. (for USA and Canada)
Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the point
where they exit from the apparatus.
Only use attachments/accessories specified by the
manufacturer.
Unplug this apparatus during lightning storms or when
unused for long periods of time.
Turning off the power switch does not completely isolate this
product from the power line so remove the plug from the
socket if not using it for extended periods of time.
Install this product near the wall socket and keep the power
plug easily accessible.
WARNING—This apparatus shall be connected to a mains
socket outlet with a protective earthing connection.
Refer all servicing to qualified service personnel. Servicing is
required when the apparatus has been damaged in any way,
such as power-supply cord or plug is damaged, liquid has
been spilled or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.
Do not install this equipment on the far position from wall
outlet and/or convenience receptacle.
Do not install this equipment in a confined space such as a
box for the conveyance or similar unit.
Excessive sound pressure from earphones and headphones
can cause hearing loss.
Use only with the cart, stand, tripod, bracket, or table
specified by the manufacturer, or sold with the apparatus.
When a cart is used, use caution when moving the cart/
apparatus combination to avoid injury from tip-over.

The lightning flash with arrowhead 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.
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.

THE FCC REGULATION WARNING (for USA)
This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and
can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause
harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more
of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and
receiver.
• Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Unauthorized changes or modification to this system can
void the user’s authority to operate this equipment.

Notice regarding disposal (EU only)
When this “crossed-out wheeled bin” symbol is
displayed on the product, owner’s manual, battery, or
battery package, it signifies that when you wish to
dispose of this product, manual, package or battery
you must do so in an approved manner. Do not
discard this product, manual, package or battery
along with ordinary household waste. Disposing in
the correct manner will prevent harm to human
health and potential damage to the environment. Since the
correct method of disposal will depend on the applicable
laws and regulations in your locality, please contact your
local administrative body for details. If the battery contains
heavy metals in excess of the regulated amount, a chemical
symbol is displayed below the “crossed-out wheeled bin”
symbol on the battery or battery package.
* All product names and company names are the trademarks or
registered trademarks of their respective owners.

Table of Contents
Introduction .............................................................................................. 4
Welcome!................................................................................................................................. 4
Main features ........................................................................................................................... 4

Quick start ............................................................................................... 5
Setup ....................................................................................................................................... 5
Checking out the preset programs .......................................................................................... 5
Switching between the user programs .................................................................................... 6

Top and rear panels.................................................................................. 7
Top panel ................................................................................................................................. 7
Rear panel ............................................................................................................................. 11

About the three operating modes ............................................................ 13
Preset mode (recalling preset programs) .............................................................................. 13
Manual mode ......................................................................................................................... 13
Channel Select mode (recalling user programs) .................................................................. 14

Creating and saving sounds .................................................................... 14
Creating a sound ................................................................................................................... 14
Adjusting the noise reduction ................................................................................................ 15
Saving a program .................................................................................................................. 16
Checking the original values saved in a program ................................................................. 16
Restoring the factory settings ............................................................................................... 17

Using the tuner ....................................................................................... 18
Using a foot switch (VOX VFS5) .............................................................. 19
Foot switch operations in Channel Select mode ................................................................... 19
Foot switch operations in Preset or Manual modes .............................................................. 19

Using a foot controller (VOX VC-12SV) .................................................... 20
Expression pedal setting ....................................................................................................... 20
Assigning a function to the expression pedal (Quick Assign) ............................................... 21
If you don’t want any function to be assigned to the expression pedal ................................ 22
Minimum and maximum values for the expression pedal ..................................................... 22

Signal path ............................................................................................ 24
What is Valvetronix Pro? ........................................................................ 24
About the amp models and effect types ................................................... 25
Amp models .......................................................................................................................... 25
Pedal effects .......................................................................................................................... 30
Modulation and delay effects ................................................................................................ 32
Reverb effects ....................................................................................................................... 35

Troubleshooting ...................................................................................... 36
Specifications ......................................................................................... 38
Song preset program .............................................................................. 39
Program sheet ........................................................................................ 40
3

Introduction
Welcome!
Thank you for purchasing the VOX Valvetronix Pro VTX150 Neodymium
modeling guitar amplifier.
To help you get the most out of your new amplifier, please read this manual
carefully.
Get ready to enjoy amazing guitar tones from your new VTX150 Neodymium.

Main features
• This amp uses the VOX Valve Reactor power amp circuit featuring the EL84
(6BQ5) vacuum tube that amps such as the VOX AC30 use as their power tube,
generating real tube amp sounds that reproduces the feel and tone of the
original amplifier.
• Sophisticated modeling technology is used to provide forty-four different amp
models.
• Twenty-five high-quality effects are built-in. You can use up to four effects
including noise reduction simultaneously (or up to five effects if you use
“multiple effects”).
• You can create a sound using the desired amp and effect, and save it in the
memory as one of eight programs (two banks x four channels). Programs can
be switched while you perform, either from the top panel or from a foot switch
connected to the rear panel (Channel Select mode). For each amp model, three
preset programs—Basic, Effect and Song—are provided, giving you a total of
132 programs (Preset mode). The song programs reproduce the tones of classic
hits played by famous guitarists.
• Manual mode lets you use the VTX150 Neodymium as a conventional guitar
amp. The physical positions of the actual knobs will be applied to the sound.
• By connecting an optional (separately sold) VC-12SV foot controller or VFS5
foot switch, you can use your foot to switch programs, turn effects on/off, or
use tap tempo to set the delay time or modulation speed. If a VC-12SV foot
controller is connected, you’ll be able to save and access a total of 16 programs,
as well as control a wah pedal or volume pedal, further expanding your live
performance possibilities.
• The power level control lets you adjust the output wattage of the power amp.
• An extension speaker output jack is provided. By connecting your favorite
guitar speaker cabinet (150W 8 ohms), you can obtain up to 300W of output
power.

• You can use the effects loop jacks to insert an external effects processor in a
loop connection.
• The built-in auto tuner lets you tune a guitar that’s connected to the INPUT
jack.
• The AUX IN jack lets you connect a CD/MP3 player, enabling you to play
guitar along with recorded music.

Quick start
This Quick Start section is for those of you who would like to start using your
new amp right away.
This manual contains information that will help you take full advantage of
your Valvetronix amp, so be sure to read the rest of it after reviewing the Quick
Start section.
HINT: Illustrations of the top panel and rear panel are provided in “Top
and rear panels” (p. 7), so you can refer to them as you try out your amp.

Setup
1. Turn the MASTER volume (p. 8) control on the amp all the way down.
2. Connect the included power cable to the AC power connector on the rear
panel, and plug the other end into an AC outlet.

3. Plug the cable that’s connected to your guitar into the INPUT jack on the top
panel.

4. Turn on the POWER switch.
5. Slowly raise the MASTER volume to adjust the volume.
HINT: The POWER LEVEL control adjusts the output level of the power
amp.
NOTE: There may be no sound for several seconds until the vacuum tube
warms up. This is not a malfunction.

Checking out the preset programs
1. Press the top Panel PRESET switch.
The PRESET LED will light up (Preset mode).

2. Turn the AMP selector to choose an amp model.
A preset program for a sound that is typical of each amp model will be recalled, and the GAIN, VOLUME, TREBLE, MIDDLE, BASS, and effect settings
will switch automatically.
HINT: The amp models are organized into four banks, each bank containing
eleven models (a total of forty-four). Press the AMP switch to change banks.
Each time you press this, the AMP LED will switch to green, orange, red, or
blue and you’ll switch to amp banks STD, SPL, CST and EXT. Each of the fortyfour amp models has three preset programs (a total of one hundred and thirtytwo programs). In Preset mode, pressing the PRESET switch will cycle the
PRESET LED among green, orange, and red, switching among preset programs
1 (basic), 2 (effect), and 3 (song).
Each song program reproduces the tone of a hit played by a famous guitarist.
See the chart on page 39 for a list of the songs presets included with your
amplifier.

Switching between the user programs
1. Press one of the top panel CHANNEL switch (CH1, CH2, CH3, or CH4).
The LED for the CHANNEL switch you pressed will light up, and the user
program specified for that channel will be recalled (Channel Select mode).
HINT: The user programs are organized into two banks, each bank containing four channels (a total of eight programs). Press the CHANNEL
BANK switch to switch banks. Each time you press it, the BANK LED will
change between green and red, switching between channel banks 1 and 2.
If an optional (separately sold) VC-12SV foot controller is connected,
you’ll be able to use four banks (a total of 16 programs). To switch to
banks 3 or 4, use the VC-12SV’s BANK UP/DOWN switches and foot
switches [1]–[4].
HINT: You can store your own favorite sounds in a program. For details,
please refer to “Saving a program” (p. 16).

Top and rear panels
In this chapter we're going to take a look at the top and rear panels of your
Valvetronix amp.

Top panel
3

1. INPUT section
INPUT jack
This is where you plug in your guitar.

2. PRESETS/MANUAL section
PRESET switch and LED, MANUAL LED
Use this to switch to Preset mode or Manual mode,
PRESET LED
and to select preset programs (basic, effect, song).
PRESET switch
Pressing the PRESET switch repeatedly will cycle
the program among basic, effect, and song. Press the
MANUAL LED
PRESET switch for more than one second to engage
Manual mode.
In Preset mode you can use the AMP switch/selector to select typical sounds
(preset programs) for each amp model. The PRESET LED will be lit green
(basic), orange (effect), or red (song) when you’re in Preset mode.
In Manual mode, the sound will reflect the physical position of all knobs
except the VALUE and DEPTH knobs. This lets you use the VTX150 Neodymium just as if it was a conventional guitar amp. The MANUAL LED will be lit
when you’re in Manual mode.

3. AMP section
Here you can adjust the settings for the amp using
the traditional VOX “chicken head” knobs.

AMP selector

AMP LED

AMP switch and selector, LED
Here you can select the amp mode.
Each time you press the AMP switch, the bank and
AMP LED color will change as follows:
AMP switch
• STD (Standard): green
• SPL (Special): orange
• CST (Custom): red
• EXT (Extra): blue
Use the AMP selector to choose a model within the selected amp bank.
The operation of the gain circuit, and the response of the tone controls and
their location within the circuit are all switched according to the amp model
that you select here.
In Preset mode (i.e., when the PRESET LED is lit-up), you can recall preset
programs that contain sounds and effect settings that are typical of each amp
model.

GAIN control
This adjusts the pre-amp gain of the selected amp model.

VOLUME control
This adjusts the volume of the selected amp model.

TREBLE, MIDDLE, BASS controls
These adjust the tone for the high, mid, and low-frequency ranges. The
changes that are produced by each control will differ depending on the amp
model that you’ve selected.

MASTER volume
This adjusts the volume that is output from the pre-amp to the Valve Reactor
power amp. This setting will change the amount of the Valve Reactor’s distortion.
NOTE: The MASTER volume setting is not programmed.
NOTE: The amount of Valve Reactor distortion is also affected by the
GAIN control and VOLUME control. With some settings, there will be
almost no distortion.

4. CHANNEL/TUNER section
BANK and CHANNEL switches, LEDs
TUNER (BYPASS) LEDs
CHANNEL LED
BANK LED
Use the BANK switch to
select the channel bank.
In Channel Select mode,
the BANK LED will be
lit-up green or red.
Use the CHANNEL
BANK switch
CHANNEL switch
TUNER (BYPASS) switch
switches to select channels. The LED of the selected channel will be lit up. To save a new program,
hold down the desired CHANNEL switch for two seconds or longer.
If you want to save a new program in a different bank, hold down the BANK
switch for 0.5 seconds or longer (until the BANK LED starts blinking) and
select the desired destination bank (p. 16 “Saving a program”).

HINT: If you’re using the optional (separately sold) VC-12SV foot controller and bank 3 or 4 is selected, the BANK LED will be unlit. Use the VC12SV’s BANK UP/DOWN switches to select bank 3 or 4.
When the tuner function is turned on, the BANK and CH 1–4 LEDs will indicate
the string number (a pitch note closest to the input sound) (p. 18 “Using the
tuner”).

TUNER (BYPASS) switch and LED
Pressing the TUNER (BYPASS) switch will turn all effects off (bypass), and
engage the tuner function. If you want to tune your instrument with the amp
output muted, press the TUNER (BYPASS) switch for one second or longer.
When the tuner function is turned on, the TUNER (BYPASS) LEDs will display
the tuning status (p. 18 “Using the tuner”).

5. PEDAL section
Here you can adjust the settings for pedal
effects.
For details on each effect, please refer to “Pedal
effects” (p. 30).

PEDAL selector

VALUE knob

This selects the effect type. When you switch
the effect type, the parameter settings of the effect will be initialized.

VALUE knob
This adjusts the parameters of each effect.
To turn the pedal effect off, rotate this knob all the way to the left.

6. MODULATION/DELAY section
Here you can adjust the settings for
modulation effects, delay effects, and
other effects, such as pitch shift.
For details on each effect, please refer to
“Modulation and delay effects” (p. 32).

MOD/DELAY selector

DEPTH knob

TAP LED

TAP switch

This selects the modulation type, delay type, or other effect type. When you
switch the effect type, the parameter settings of the effect will be initialized.

DEPTH knob
This adjusts the parameter of each effect, such as the depth of the effect.
You can also adjust the modulation speed and other parameters by holding
down the TAP switch and rotating the DEPTH knob.
To turn the modulation/delay effect off, rotate this knob all the way to the left.

TAP switch, LED
This sets the speed of modulation-type effects, or the delay time of delay
effects. The interval between two presses of the switch will be set as the speed
or time.
The LED will blink at intervals of the specified speed or time.
HINT: To set a precise speed or time that matches the tempo of a song,
press the TAP switch several times in rhythm with the song.
If you selected PITCH SHIFT, pressing the TAP switch repeatedly will change
the pitch setting.
If you selected FILTRON, pressing the TAP switch repeatedly will toggle
between UP and DOWN for the envelope. When UP is selected, the TAP LED
will light up.
You can also adjust the speed, pitch, or other parameters by holding down the
TAP switch and rotating the DEPTH knob.
For details, please refer to “Modulation and delay effects” (p. 32).

7. REVERB section
Here you can adjust the settings for reverb effects.
For details on each effect, refer to “Reverb effects” (p. 35).

REVERB knob
Depending on the position of the knob, this selects the reverb
REVERB knob
type (ROOM, SPRING, or HALL) or adjusts the mix amount
of the reverb sound.
If you turn the control all the way to the left, the reverb effect will turn off.

8. POWER LEVEL control
This adjusts the output wattage of the power amp.
When using only the VTX150 Neodymium itself: 0W–150W
When using an extension speaker: 0W–300W
NOTE: The power level setting is not saved in the
program.
POWER LEVEL control

9. AUX IN/PHONES section

AUX IN jack

AUX IN jack
Connect the analog output of an audio device to this jack. You
can connect a CD or MP3 player here, and then play along on the
guitar while listening to your favorite songs.

PHONES jack

Use this jack if you want to output directly to a mixer or recording device, or when you want to use headphones. The signal that is output
from this jack is taken from directly before the power amp, and the cabinet
response of the guitar amp will be applied to it.
NOTE: If you plug a cable into this jack, sound will not be output from
the internal speaker or the extension speaker.
NOTE: Be sure to connect the headphones to this jack in stereo. If you
connect them in monaural, the sound will not be output through the
headphones.

Rear panel

1. POWER switch
This switch turns the power on or off.

2. AC power connector
This is where you connect the included power cord.

3. FX LOOP (Effect loop) jacks
These are loop jacks for connecting an external effects processor.
Connect the SEND jack to the input of your external effects processor. Connect
the RETURN jack to the OUTPUT of your external effects processor.

4. VOX BUS port
Connect the optional (separately sold) foot controller here.
For details on using the foot controller, please refer to “Using a foot controller
(VC-12SV)” (p.20).
NOTE: Never connect anything to this port other than the VC-12SV.

5. FOOT SW (foot switch) jack
You can connect an optional VOX VFS5 foot switch here.
For more information on using the VOX VFS5, please refer to “Using the foot
switch (VOX VFS5)” (p. 19).
NOTE: You must connect or disconnect the VFS5 while the power is off.
Malfunctions or damage may occur if you connect or disconnect the foot
switch while the power is on.
NOTE: Take care that you don’t mistakenly connect the VFS5 to the
EXTENSION SP jack.

6. EXTENSION SP (Extension speaker out) jack
You can connect a guitar speaker cabinet here.
If a protective cap that guards against accidental insertion is attached, remove
it first.
IMPORTANT: In order to ensure correct operation, you must strictly
observe the following points.
a) Use only an 8 ohm external speaker; no other impedance may be
used.
b) Do not connect a speaker whose rated input is less than 150 watts.
Doing so may damage your speaker.
c) You must use a speaker cable to connect the speaker. Don’t use a
shielded cable of the type used to connect a guitar to an amp.
d) You must turn off the power before connecting this cable. The amp
may malfunction if you connect or disconnect this cable while the
power is on.

About the three operating modes
Preset mode (recalling preset programs)
In Preset mode you can use the AMP switch/selector to recall programs for
each amp model: “basic” programs containing typical sounds for that amp
model, “effect” preset programs, and “song” preset programs that replicate
tones from hit songs. Each program will automatically switch the settings for
GAIN, VOLUME, TREBLE, MIDDLE, BASS, and effects. For details on the hit
songs that are programmed for each amp model, please refer to the table at end
of this owner’s manual.

Switching to Preset mode
If the PRESET LED is dark, you’re not in Preset mode. Press the PRESET
switch; the PRESET LED will light up, and you’ll be in Preset mode.

Recalling a preset program
Each of the forty-four amp models contains three preset programs: “basic,”
“effect,” and “song” (a total of one hundred and thirty-two programs).
With the PRESET LED lit, use the AMP switch/selector. The preset program
specified for each amp model will be selected, regardless of the position of the
top panel control knobs or EFFECTS selector. If you recall a preset program
while the effects bypass is enabled, the bypass will be cancelled.
In preset mode, pressing the PRESET switch will make the PRESET LED cycle
through green, orange, and red, switching among preset programs Basic,
Effect, and Song.

Manual mode
When the VTX150 Neodymium is in Manual mode, it will behave like a conventional guitar amp. In other words, the sound will reflect the actual position of all
the top panel selectors and control knobs (except for the VALUE and DEPTH
knobs).

Switching to Manual mode
If the MANUAL LED isn’t lit, the unit is not in Manual mode. Press and hold
down the PRESET switch for one second or longer; the MANUAL LED will
light up, and the unit will enter Manual mode.
NOTE: In Manual mode, if you adjust a parameter setting that is not affected
by a knob position (such as the effect parameter and the noise reduction
settings), the adjusted setting will be saved automatically, and that same
setting will be recalled the next time the unit enters Manual mode. However, if
at that time the PEDAL or MOD/DELAY selector is set to a different position
than previously, the default parameter settings for that effect type will be
loaded.

Channel Select mode (recalling user programs)
In Channel Select mode you can use the BANK switch and CHANNEL
switches to recall the programs that are saved in each channel of the bank; all
of the amp and effect parameters will switch automatically.

Switching to Channel Select mode
If the BANK and CHANNEL LEDs aren’t lit, you’re not in Channel Select
mode. Press the BANK switch or a CHANNEL switch; the BANK and CHANNEL LEDs will light up, and you’ll be in Channel Select mode.

Switching channels
Press a CHANNEL switch to change channels. The program specified for that
channel will be selected, regardless of the position of the top panel selectors
and control knobs. If you press the BANK switch, the bank will change, and
the channel of the same number that had been selected in the previous bank
will be selected.
HINT: If an optional (separately sold) VOX VFX5 foot switch or VC-12SV
foot controller is connected to the rear panel, you can use your foot to
switch banks or channels. For details, please refer to “Using a foot switch
(VOX VFS5)” (p.19) and “Using a foot controller (VC-12SV)” (p.20).

Creating and saving sounds
You can create a sound either by starting with an existing program that’s close
to what you have in mind and then editing it, or by creating the sound “from
scratch” (i.e., from an initialized state).

Creating a sound
Here’s how to create a sound from scratch.

1. Enter Manual mode.
2. Use the TUNER (BYPASS) switch to bypass the effect (the TUNER (BYPASS)
LEDs will be lit up).
If you want to use an effect, you’ll add it last.

3. Use the AMP switch/selector to select the amp that you want to use.
HINT: For details on the amp models, please refer to “Amp models” (p. 25).

4. Adjust the top panel knobs such as GAIN, VOLUME, TREBLE, MIDDLE, and
BASS.

5. Turn the VALUE knob to set the noise reduction. This setting is also saved in
the program. For details, please refer to “Adjusting the noise reduction” (p. 15).
HINT: Adjust the noise reduction so that there’s no unwanted noise when
you’re not playing your guitar.

6. Press the TUNER (BYPASS) switch once again to defeat bypass (the TUNER
(BYPASS) LEDs will be dark).

7. Set the effect.
If you plan not to use effects, set the VALUE, DEPTH, and REVERB knobs to
the “OFF” position. If the knobs have already been set to “OFF,” set them to
any position other than “OFF,” then set them back to “OFF.”
If you plan to use effects, select an effect, and adjust it as desired.
For example if you want to add delay, turn the MOD/DELAY selector to
“A.DELAY.” If the selector is already at “A.DELAY,” turn it to some other effect
type and then back to “A.DELAY.”
Use the TAP switch and DEPTH knob to set the delay time or delay level (the
amount of delay sound that is added).
DELAY LEVEL:
Turn the DEPTH knob (without holding down a
switch).
DELAY TIME:
Press the TAP switch twice (at the desired timing
interval).
DELAY FEEDBACK: Turn the DEPTH knob while holding down the TAP
switch.
HINT: For details on the effect types, please refer to “About the amp
models and effect types” (p. 25).

Adjusting the noise reduction
Here’s how to adjust the way that noise is suppressed.
NOTE: Noise reduction is specified individually for each program. In
Preset mode or Channel Select mode, the noise reduction setting will be
lost if you switch to a different program or to Manual mode or turn off the
power before saving.

1. Press the TUNER (BYPASS) switch to make the TUNER (BYPASS) LEDs light
(Effect Bypass On).

2. Turn the VALUE knob to adjust the sensitivity of the noise reduction. Turning
the knob toward the right will produce stronger noise reduction. If the knob is
turned all the way to the left, noise reduction will be off and will have no effect.

NOTE: Depending on the guitar you’re using, raising the noise reduction
too high may cause notes to be cut off.

3. Press the TUNER (BYPASS) switch to make the TUNER (BYPASS) LEDs go dark.

Saving a program
When you’ve created a sound that you like, here’s how to save (write) it.
HINT: If you’re saving to a channel in the same bank, proceed from step 3.

1. Hold down the BANK switch for 0.5 seconds or longer. The BANK LED will
blink.

2. Press the BANK switch to select the save-destination bank.
HINT: If an optional (separately sold) VC-12SV foot controller is connected, you can use the controller’s BANK UP/DOWN switches to select
the save-destination (banks 1–4).
HINT: If you decide to cancel the Write operation, press the TUNER (BYPASS)
switch at this point. The LED will stop blinking, and you’ll return to the
previous mode.

3. For two seconds or longer, hold down the CHANNEL switch of the channel in
which you want to save the sound. The LED will change from blinking lit. The
program will be saved in that channel, and that bank and channel will be
selected.
NOTE: The program that was previously in that location will be overwritten; i.e., the program that had been in the channel you selected in step 3
will be lost.
NOTE: The setting of the TUNER (BYPASS) switch is not saved in the
program.
NOTE: If you’re creating your sound in Preset mode or Channel Select
mode, the changes that you made will be lost if you switch to another
program, to Manual mode or turn off the power before saving.

Checking the original values saved in a program
The original value indication lets you check the parameter settings that are
saved in a program.
When you turn a knob to change the value of a parameter, the PRESET LED (if
you’re in Preset mode) or the LED of the selected channel (if you’re in Channel
Select mode) will momentarily go dark when the edited value matches the
value that’s stored in the program.

HINT: When you’ve found a program that you like, and are interested in
knowing the actual settings, you can use this original value indication to
find out.
NOTE: The MASTER volume and POWER LEVEL controls are not programmable, so the original value indication is not available for these
controls. The original value indication will not appear when the tuner
function is turned on in Channel Select mode, nor when the unit is in
Manual mode.

Restoring the factory settings
Here’s how to restore all settings of the VTX150 Neodymium to their factoryset state.
NOTE: This operation will erase all programs that had been saved to
channels, and will initialize the factory-set programs.
NOTE: This will also initialize the effect and noise reduction settings that
you made in Manual mode.

1. Turn off the power.
2. While holding down the CH1 and CH4 switches, turn on the power. When the
BANK and CHANNEL LEDs start blinking, release the two switches you had
been holding down.
HINT: If you decide to cancel initialization at this point, press the TUNER
(BYPASS) switch.

3. Press the TAP switch. The BANK and CHANNEL LEDs will change from
blinking to lit, and initialization will begin. In one or two seconds, initialization
will be completed, and the unit will enter Preset mode.
NOTE: Never turn off the power while initialization is in progress.

Using the tuner
The tuner function lets you tune a guitar that’s connected to
the INPUT jack.
HINT: If an optional (separately sold) VC-12SV foot
controller is connected, you can use your foot to use the
tuner function. For details, please refer to the VC-12SV
owner's manual.

1. Press the TUNER (BYPASS) switch. All effects will be bypassed and the tuner function will be turned on.
Bypass indicator (No valid signal is input.)
HINT: If you want to tune your guitar with the amp output muted, hold
down the TUNER (BYPASS) switch for one second or longer. When the
amp is muted, the TUNER (BYPASS) LEDs will blink.

2. Play any open string.
NOTE: Be careful not to play other strings accidentally.

3. Tune the string casually so that, from among five LEDs (BANK LED and CH 1–
4 LEDs) only the LED that corresponds to the string lights up.

6th (E)
1st (E)

5th (A)

4th (D)

3rd (G)

2nd (B)

4. Tune the guitar precisely while observing the TUNER (BYPASS) LED indicators.
Sharp
Slightly sharp
In tune
Slightly flat
Flat

5. Press the TUNER (BYPASS) switch again to complete tuning.

Using a foot switch (VOX VFS5)
If you connect an optional
VOX VFS5 foot switch (sold
separately) to the rear panel
FOOT SW jack, you’ll be able
to switch banks/channels and
turn effect bypass on/off using your foot.
NOTE: You must connect or disconnect the foot switch while the power is
off. Malfunctions or damage may occur if you connect or disconnect the
foot switch while the power is on.
NOTE: Do not press two or more foot switches simultaneously. Doing so
may cause malfunctions.

Foot switch operations in Channel Select mode
Switching banks/channels (BANK, CH1–4 switches)
In Channel Select mode, you can press the VFS5’s switches to change the bank
or channel.
NOTE: You can’t change to Channel Select mode by pressing the VFS5’s
switches in Preset or Manual modes. Nor can you save a program by
holding down the VFS5’s CH1–4 switches.
NOTE: Use of the top panel will not be reflected by the VFS5’s LEDs.

Tap to set the speed/time (CH1–4 switches)
You can set the speed of a modulation effect or the time of a delay effect by
pressing the CHANNEL switch of the same number as the selected channel.
The time will be set to the interval between two presses of this switch.

Foot switch operations in Preset or Manual modes
Tap to set the speed/time (CH3 switch)
In Preset or Manual modes, you can set the speed of a modulation effect, or the
time of a delay effect by pressing the VFS5’s CH3 switch. The time will be set
to the interval between two presses of this switch.

Effect on/off (CH1, 2, 4 switches)
In Preset or Manual mode, you can press the VFS5’s CH1, 2 or CH4 switches to
turn PEDAL, MOD/DELAY, and REVERB effects on/off respectively.

NOTE: The effect on/off setting is independent for each program. In
Preset mode or Channel Select mode, any changes you make will be lost if
you don’t save the edited program before switching to another program
or to Manual mode, or before turning off the power.

Using a foot controller (VOX VC-12SV)
If an optional (separately sold) VOX VC-12SV foot controller is connected, the
number of user programs is increased to 16 (4 banks x 4 channels), and you’ll
be able to select banks 3 and 4 which cannot be selected from the amp itself.
HINT: For details on
how to save a
program to bank 3
or 4, please refer to
“Saving a program”
(p.16).
The VC-12SV also allows
you to control the following with your foot.
- Switch banks or channels (only in Channel Select mode)
- Use the volume pedal to control the volume
- Use the expression pedal to control parameters
- Use the foot switches to turn individual effects on/off
- Use a foot switch to activate the tuner
- Use a foot switch to set the delay time and modulation speed (the Tap
function)
NOTE: Please do not connect VTX150 Neodymium to the VOX BUS SUB
connector. Two VTX150 Neodymium units can not be controlled by the
VC-12SV.
HINT: For details on connecting and operating the VC-12SV, please refer
to the VC-12SV owner’s manual.
HINT: The VC-12SV operation when the VTX150 Neodymium is in Preset
mode is the same as when it is in Manual mode. For details on operation
in Manual mode, please refer to the VC-12SV owner’s manual.

Expression pedal setting
Each of the VTX150 Neodymium's programs assigns a function to the expression pedal, allowing you to use the expression pedal to control not only wah
but a variety of other effect parameters.

HINT: If you select AUTO WAH, the expression pedal will automatically
function as a wah pedal.

For each program, you can specify the parameter that will be controlled by the
expression pedal, and save the assignment. When you save a program, the
position (angle) of the expression pedal at that moment is also saved as a value
in the program. When you select that program, the saved value will be recalled.
However, the following values are not saved.
- Input level to the delay effect
- Input level to the reverb effect
- PITCH parameter of PITCH SHIFT

Assigning a function to the expression pedal (Quick
Assign)
The VTX150 Neodymium lets you easily assign an effect parameter or the
effect input level to the expression pedal.
HINT: For details on the effect parameters that can be assigned, please
refer to “About the amp models and effect types” (p.25).
NOTE: The function that’s assigned to the expression pedal and its minimum/maximum values are specified independently for each program. In
Preset mode or Channel Select mode, any changes that you make will be
lost if you don’t save the edited program before switching to another
program or to Manual mode, or before turning off the power.

Basic procedure
1. Use the selectors to select the desired effect, and use the knob or switch whose
parameter you want to assign to the expression pedal. If the parameter is
assignable, the VC-12SV’s pedal LED (the LED at the upper left of the expression pedal) will blink for one or two seconds.

2. While the pedal LED is blinking, press the VC-12SV’s pedal switch. The pedal
LED will blink rapidly; this completes the assignment.

Assigning amp gain
1. Use the GAIN control.
2. Press the pedal switch while the pedal LED is blinking.

Assigning the reverb effect input level
1. Use the REVERB knob.
2. Press the pedal switch while the pedal LED is blinking.
21

Assigning the delay effect input level
1. Use the MOD/DELAY selector to select “TAPE ECHO,” “A.DELAY,” or
“CHORUS+DELAY,” and then use the DEPTH knob.

2. Press the pedal switch while the pedal LED is blinking.

Assigning the PITCH parameter of PITCH SHIFT
1. Use the MOD/DELAY selector to select “PITCH,” and then press the TAP
switch (alternatively, hold down the TAP switch and use the DEPTH knob).

2. Press the pedal switch while the pedal LED is blinking.

If you don’t want any function to be assigned to the
expression pedal
1. Press the TUNER (BYPASS) switch to select Bypass.
The VC-12SV’s pedal LED (the LED at the upper left of the expression pedal)
will blink for one or two seconds.

2. While the pedal LED is blinking, press the VC-12SV’s pedal switch. The pedal
LED will blink rapidly; the assignment of the expression pedal has been
cleared.
HINT: The assignment will also be cleared if you change the effect type
that’s assigned to the expression pedal.
However in the following cases, the assignment will not change; the
setting will be maintained.
- If the amp model’s GAIN parameter is assigned
- If the reverb effect’s input level is assigned
- If a parameter of a delay effect is assigned, and you switch between the
three types of delay effect

Minimum and maximum values for the expression
pedal
The minimum value is when the expression pedal is fully returned toward
yourself, and the maximum value is when the pedal is fully advanced away
from yourself.
When you assign a parameter to the expression pedal, the most appropriate
operating range for that effect, based on that parameter’s minimum value and
maximum value, will be assigned automatically as the minimum and maximum values for the expression pedal.

If you’ve assigned the PITCH parameter of the PITCH SHIFT effect, the minimum value will be “0” (no pitch shift) and the maximum value will be the
current value.
NOTE: If you’ve assigned the input level of the delay or reverb effect to
the expression pedal, you won’t be able to change the minimum and
maximum values.
To change the minimum and maximum values, proceed as follows.

1. Use the knob or switch of the parameter that’s already assigned.
The VC-12SV’s pedal LED (the LED at the upper left of the expression pedal)
will blink for one or two seconds.
HINT: When you use the knob or switch of the already-assigned parameter, the pedal LED will blink in a different way than for other parameters.

2. Press the pedal switch twice in succession.
The pedal LED blinking will slow; now you can specify the minimum and
maximum values.
HINT: In the case of parameters whose minimum and maximum values
can be adjusted, rapid blinking will continue for one or two seconds after
you press the pedal switch the first time. Press the pedal switch once
again while the rapid blinking continues.

3. To adjust the minimum value, return the expression pedal all the way toward
yourself, and then use the knob or switch of the assigned parameter.

4. To adjust the maximum value, advance the expression pedal all the way away
from yourself, and then use the knob or switch of the assigned parameter.

5. Press the pedal switch.
The LED will stop blinking, and will return to its previous state.

Signal path
Your guitar sound passes through the following sections.
Refer to “Top and rear panels” (p. 7) in conjunction with this illustration.
GAIN

MASTER

VOLUME

POWER LEVEL
VALVE REACTOR

EFFECT

PRE AMP

PEDAL

Select one
of 44

EFFECT
MOD/DELAY

REVERB

FX
LOOP

VALVE
EL84 (6BQ5)

EXTENSION SP

What is Valvetronix Pro?
The VOX Valve Reactor circuit is featured in the VOX VT series amplifiers and
ToneLab serieseffects. Although most of the sound processing in these products
occurs in the digital domain, the Valve Reactor power amp is 100% analog.
Passing the guitar signal through the power amp stage as an analog signal is very
important for the feel and tone of the original amp that’s being modeled.
The Valve Reactor circuits of previous models used a 12AX7 vacuum tube (typically used in the preamp) as their power tube, making it a miniature version of a
tube power amp. In contrast, the circuit newly developed for the VTX150 Neodymium uses the EL84 (6BQ5) tube that's actually used as the power tube in amps
such as the VOX AC30, meaning that it will function like a true tube amp. We’ve
named this new technology “Valvetronix Pro.”
The vacuum tube is connected to a power amp circuit that features a special
design in its final output stage. This allows pure tube amp sound to be generated,
while still allowing the user to continuously adjust the power stage’s output
volume across the full range from minimum to maximum output. The wide
dynamic range characteristic of classic tube amps is also maintained. This dynamic range is difficult to obtain from solid state amps, and is one of the reasons
that a tube amp sounds more powerful than a solid state amp of equivalent
output wattage. The output of the Valve Reactor power amp “reads” the constantly changing impedance curve of the connected speaker system, and feeds
this information back to the vacuum tube. In response to this information, the
functionality of the amp’s tube stage will vary according to the speaker load
(impedance). This too is an important element in the sound of a true tube amp.
By adjusting these characteristics, every sound of that amp model can be faithfully reproduced. This power amp technology, for which a U.S. patent has been
obtained, is unique to the VOX Valvetronix amps.
We trust you will enjoy the Valvetronix Pro sound as newly implemented in the
VTX150 Neodymium.

About the amp models and effect types
This section provides details about the amp models and effect types, such as
pedal effect, modulation and delay effects and reverb effect.
HINT: Each amp model’s GAIN (set by the top panel GAIN control) can
be assigned to the optional (separately sold) VC-12SV’s expression pedal
for control. For details on how to assign the parameter, please refer to
“Assigning a function to the expression pedal (Quick Assign)” (p.21).

Amp models
1. CLEAN
STD (Standard)
This models the clean channel of a high-quality amp that was produced only
on special order, and was known as the overdrive special. With a beautifully
rounded low range, a sharp midrange attack, and a sweet treble register, this is
ideal for single coil pickups.

SPL (Special)
This models the clean channel of a Japanese-made amp with 2 x 12" speakers
that went on sale in 1975. It is known for its clean full-range sound and its
built-in stereo chorus, and is used on stages and in studios around the world.

CST (Custom)
This models is only a three-band tone control amplifier that produces a pure,
clean tone. Setting TREBLE, MIDDLE, and BASS to the center will produce flat
response of the pre amp.

EXT (Extra)
This models a small American combo amp that has been a popular choice
among professional jazz players for 40 years. Its distinguishable treble control
creates a variety of jazzy tones that range from warm and mellow to fat and
bright.

2. CALI CLEAN
STD (Standard)
The 6G5-A “Pro” amp was produced during the years 1960–1963, and was
distinctive for its yellowish brown vinyl cover and round brown knobs. This
40W combo amp is known for its warm and clean tone.

SPL (Special)
This American-made tweed-covered 2x12" combo amp made in 1957 is known for
its rich and clean tone that’s ideal for classic rock, blues, and country. By raising
the volume you can also produce a powerful and punchy overdrive sound.

CST (Custom)
This models an American-made black-paneled amp that has been modified.

With this modification, an already-superb amp gains even greater smoothness
and additional warmth.

EXT (Extra)
This dual channel 22W blackface 60’s design used 6V6 power tubes and a tube
driven reverb to produce a big sound at a lower wattage. Our modeling is
based on the Vibrato channel.

3. US BLUES
STD (Standard)
This models a 4x10" combo amp from 1959 that was originally designed for
bass guitar. Its smooth and crisp overdrive sound will respond sensitively to
your picking dynamics and to the volume of your guitar.

SPL (Special)
This models the 22W Bruno Cowtipper Pro II 22 which owes its existence to a
special friend of VOX, the custom amp designer Tony Bruno. It responds with
extreme sensitivity to your playing touch, and its silky-sweet clean tone becomes a crunch sound rich in overtones when you turn up the volume.

CST (Custom)
This models a wood-finished 30W boutique amp head that costs more than
$25,000. It delivers sparkling glassy clean tones. It also produces overdrive
sounds that are startlingly sweet in a musical way when the gain is raised.

EXT (Extra)
This models a vintage California design known as the first amp equipped with
4 cascading gain stages. The result of which was a wall of gain that could
sustain notes using enormous amounts of overdrive.

4. US 2x12
STD (Standard)
This models a black-faced 2x12" combo amp that has become an indispensible
item for country and blues players. Its tight and clean sound provides deep
piano-like bass tones, and will deliver the classic Chicago blues tone particularly when used with single coil pickups.

SPL (Special)
This models a beautiful 30W boutique amp head renowned for its peerless
quality and true point-to-point wiring. Based on a concept similar to that of the
VOX AC30, this amp is known for its rich overtones, sparkling clean tone, and
great-sounding overdrive.

CST (Custom)
Based on a crunch-distortion amp, this original amp model changes the tone
control to an active circuit that is more powerful than the conventional one,
allowing a wide range of tones to be created.
Raise the TREBLE for sparkling chords or lower it for a tasteful blues setting,
or turn up the MIDDLE for a rock backing sound.

EXT (Extra)
This California designed two channel amplifier utilized five modes and four
5AR4 tubes in a high-voltage design with switchable solid state and tube
rectification that gave the amp increased headroom and variable dynamics.
When this amp was discontinued it broke many hearts.

5. VOX AC15
STD (Standard)
This models the AC15TB, which combines the beautifully sweet tonal character
of the AC15’s low output power amp with the sound-creating flexibility of the
AC30’s top boost channel.

SPL (Special)
This models channel 2 of the VOX AC15 (1x12", 15W), which was manufactured in 1962 and was a big hit for its compact cabinet, power, and great tone –
along with then-popular British bands.

CST (Custom)
Designed to emulate the tones of the thick channel on the VOX Night Train
Amplifier this tone is a modern take on the classic VOX pairing of 12AX7
preamp tubes and EL84 power tubes. Think Classic British Crunch.

EXT (Extra)
The VOX AC4 was originally released as the AC2 practice amp in 1958. After
giving the amp a larger speaker and a few design tweaks it was re-launched as
the AC4 in 1962. Electronically, the AC4 used four tubes: one 12AX7 and one
EF86 preamp tube, one EL84 power tube and one EZ80 rectifier.

6. VOX AC30
STD (Standard)
This models an AC30 amp with a “top boost” circuit that was included as
standard beginning in 1964. It delivers a smooth and refined top end, a majestically deep overdrive, and a rich, brilliant clean sound.

SPL (Special)
Designed after our VOX Hand-wired Heritage AC30H2 this model provides
the sparkle that is synonymous with the pairing of a classic VOX amplifier and
the famed Celestion Alnico Blue.

CST (Custom)
This models the AC30BM Brian May signature model which faithfully reproduces every nuance of the legendary original AC30 from the 1950’s. This
setting provides the screaming sound of the amp being overdriven with the
treble booster turned on.

EXT (Extra)
This original design utilizes an expanded set of tonal controls but is heavily
inspired by an early AC30 with warm lows, dampened attack, brilliant bell like
top-end and musical compression often attributed to the Celestion blue alnico
speaker.

7. UK ROCK
STD (Standard)
This 45W amp head was originally manufactured from 1962 to 1966, and was
based on a tweed-covered bass amp. Its high-gain design was the beginning of
the British amp tone revolution that continues to this day.

SPL (Special)
This models a UK-manufactured 100W single-channel head with master
volume made in 1983. Turn the GAIN control all the way up to get the thick,
snarling hard rock and heavy metal sound that dominated the 80’s.

CST (Custom)
This models the high treble channel of a hand-wired amp head made in England during the early 60’s. Raising the volume of this 50W output amp all the
way produces the crunch that will forever be the sound of rock‘n’roll.

EXT (Extra)
This model is based on a British boutique amp design known for its high
power and expressive overdriven tone that is suitable for soulful and bluesy
hard rock with the hot switch kicked in.

8. UK METAL
STD (Standard)
This models the high-gain channel of a modern 100W amp. While individual
notes are clearly defined, it delivers a monster sound that’s quite aggressive
and arrogant.

SPL (Special)
This models an English-made 100W amp head released in 2007 and boasting a
four-channel design with powerful tone. We’ve used the “Overdrive 1” channel, which produces a tight low-end and transparent high-gain metal sound.

CST (Custom)
Based on a UK-made 100W head, this amp was created for a famous guitarist
known for his amazing tone, slash rhythms, and fondness for silk hats. If you
have a desire for the ultimate metal tones, this amp is the perfect choice.

EXT (Extra)
This models a British stack that created the trademark tones of CRAZY TRAIN.
Ideal for humbucking pickups this amp was modified so that both halves of
the first 12AX7 preamp tube cascade in the preamp circuit of channel II.

9. US HIGH GAIN
STD (Standard)
This models a 100W boutique amp head manufactured in North Hollywood.
This amp can be switched between power tube class AB or class A modes; the
class AB mode used on the VTX150 Neodymium produces rich overtones and
features a highly musical response.

SPL (Special)
This models the overdrive channel of a snakeskin-covered 100W amp head
built in 1991. With an open low-end and a compressed mid/high range, its
powerful, heavy sound delivers a forceful tone that will not break down even
with the most extreme gain settings.

CST (Custom)
Designed to model the sound behind “POWER METAL”, this amp will crank.

EXT (Extra)
This sparkling blue hand built German 6L6 based design was actually 3 amps
in one. Its design was both versatile and original at any setting. We have
modeled channel 2 which delivers a very modern gain structure.

10. US METAL
STD (Standard)
This models the modern high-gain channel from a wild beast of an amp. Its
deep and loose low-end, sparkling highs, and monstrous gain are ideal for
guitars tuned as low as possible, or for metal acts wielding seven-string guitars.

SPL (Special)
This models a California-made amp head with a three-channel design and
versatile gain switches that produce a wide variety of sounds. We’ve modeled
the lead channel, which produces the ultimate high-gain tone.

CST (Custom)
This two-channel 120W head manufactured in Mississippi was designed for a
legendary guitar hero known for his “brown sound.” This amp models features a high-gain sound that’s ideal for the tapping performance technique.

EXT (Extra)
This pursues a fat driving high-gain sound created to unleash a pure agressive
metal style. Ideal for performances with down tuned strings.

11. BOUTIQUE METAL
STD (Standard)
This models the overdrive channel of a 100W high-quality amp that was
produced only on special order, and was known as the overdrive special. The
wonderful sustain obtained by raising the GAIN control is smooth and soulful.

SPL (Special)
This models the crushing high-gain sound that emanated from a German-made
100W four-channel amp head. We chose the “Heavy” channel, which delivers a
startling tightness when played with a dropped-D metal tuning.

CST (Custom)
This is an original amp model based on a recent high-gain amp, marked by a
rich and hot mid-range tone and extremely powerful sustain.
Since active-circuit tone controls are used on this model as well, a wide range
of tonal variety can be obtained.

EXT (Extra)
This 300W solid state amp covers from punchy metal to vintage rock sound
with a 9 band EQ.
We set this model up on channel 2 to best match a metal act wielding sevenstring guitars.

Pedal effects
The VTX150 Neodymium provides eleven of the most popular types of pedal
effect. You can use the VALUE knob to adjust the major parameters.
NOTE: In order to edit the pedal effect parameter settings, effect bypass
must be off (the BYPASS LED must be dark). If bypass is on (BYPASS LED
lit), turning the VALUE knob will adjust the noise reduction sensitivity
instead of an effect parameter.
NOTE: To turn the pedal effect off, rotate the VALUE knob all the way to the
left.
HINT: Parameters that can be assigned to the optional (separately sold) VC12SV’s expression pedal are marked with an asterisk “*”. For details on how
to assign a parameter to the expression pedal, please refer to “Assigning a
function to the expression pedal (Quick Assign)” (p.21).

1. COMP
This models a compressor pedal that is popular for its percussive clean sound.
It’s perfect for the pop or funk music of the 80’s and 90’s. It can also produce a
singing, mellow sustain.
Knob
VALUE

Parameter
SENS*
Adjusts the sensitivity. Turn the knob toward the right
to increase the compression and sustain.

2. ACOUSTIC
This is ideal when you want to play acoustic sounds. It’s a simulator that
transforms the sound of an electric guitar into the sound of an acoustic guitar.
We recommend that you use this with a single-coil (i.e., low output) neck
(front) pickup.
Knob
VALUE

Parameter
TONE*
Adjusts the tone.

3. AUTO WAH

This models an auto-wah; a device that creates an automatic “wah” effect that
varies with your picking dynamics (i.e., how hard or soft you hit the strings) a quirky, but useful effect.
If you use the pedal selector to select AUTO WAH, the optional (separately sold)
VOX VC-12SV’s expression pedal will automatically function as a wah pedal.

Knob
VALUE

Parameter
SENS/POL* Adjusts the sensitivity of response to the guitar’s
volume. If this parameter is assigned to the expression pedal, wah can be controlled by the expression
pedal, and the sensitivity and the direction of operation will not be affected by input from the guitar.
(Using the knob will adjust the degree of openness
for the wah.)

4. U-VIBE
This models a famous phase/vibrato pedal. This effect simulates a rotary
speaker, producing a seductive and emotional tone.
Knob
VALUE

Parameter
SPEED* Adjusts the vibrato speed.

5. BRN OCTAVE
This models a pedal that adds gravity to a sound by generating a sound one
octave below, and mixing this with the original (dry) sound.
Knob
VALUE

Parameter
LEVEL*
Adjusts the mix amount of the octave-lower sound.

6. TREBLE BOOST
This models the treble booster built into the VOX VBM-1, which was designed
for use with the VOX AC30.
It adds “crunch” to overdrive sound.
Knob
VALUE