VOX Amplification VT20X Manuel D'utilisation page 5

b . Amp section
PRESET PROGRAMS button
This switches between the preset programs mode and
manual mode.
Press the PRESET PROGRAMS button once to enter the
preset programs mode. Each press of the button switches
the setting in the following order: preset A (green), preset B (yellow-
green), preset C (red).
Hold down the PRESET PROGRAMS button for at least one second to
switch to manual mode ("About the three modes" on page 7).
AMP MODELS knob
This selects the amp model.
The characteristics and location of the gain and
tone controls in the circuit will change according
to the amp model that is selected. Additionally,
the parameters in the valve section and noise
reduction are switched to the standard settings
for each amp model. In preset programs mode, this knob is used to recall a
preset program.
At USER A, USER B and USER C, an amp model customized by
Tip
using Editor/Librarian software can be stored.
GAIN knob
This adjusts the pre-amp gain of the selected amp
model. This setting will change the amount of the pre-
amp's distortion.
TREBLE, MIDDLE and BASS knobs
These adjust the high, mid, and low-
frequency ranges. The changes that
are produced differ depending on the
selected amp model.
The Editor/Librarian software, can be used to make more detailed
Tip
adjustments to the tone.
VT20X/VT40X Owner's manual
VOLUME knob
This adjusts the level of volume that is output from the
pre-amp to the power amp. This setting will alter the
amount of power amp distortion.
The amount of power amp distortion is also affected
by the GAIN knob. On some settings, there will be
almost no distortion.
c . POWER LEVEL knob
This adjusts the output level of the power amp while
maintaining the level of power amp distortion.
The POWER LEVEL setting is not saved with the
programs.
This also adjusts the output level from the
Tip
headphones jack (p. 6) when headphones are plugged into the jack.
However, the input from the AUX IN jack (p. 6) is not affected.
d . USER PROGRAMS section
FOOT SW jack
You can connect an optional VOX VFS5 foot switch here.
For more information on using the foot switch, refer to
"Using the foot switch (VOX VFS5)" on page 9.
You must connect or disconnect the VFS5 when the
power is off. Malfunctions or damage may occur if
you connect or disconnect the foot switch while the power is on.
BANK button and channel buttons (CH1, CH2, CH3 and CH4)
Use the BANK button to select a channel bank, and then press a channel
button to select a channel (program)
within the bank ("About the three
modes" on page 7). These buttons
are also used to save new programs
("Saving a program" on page 8).
When the tuner function is engaged, these buttons will display the
tuning status ("Using the tuner" on page 9).
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