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GFX-30 Amplifier
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1: INPUT: Connect your guitar here using
a shielded instrument cable.
OVERDRIVE CHANNEL: A high gain
channel giving you sounds from a slight
edge to serious overdrive.
2: GAIN: This control sets the amount of
compression and distortion from the ampli-
fier. With the control towards the far left,
the sound will have a thick compressed
quality. As you turn the control to the right
the amount of distortion increases. Crate's
exclusive "Flex Wave" circuitry uses
sequential cascading gains to deliver dis-
tortion which is rich in harmonics and
"touch sensitive." Use this control along
with the Shape and Level controls (#3 and
4) to create a wide variety of sounds.
3: SHAPE: To quickly "dial in" just the right
distortion sound, simply rotate the Shape
control until you find the sound you're look-
ing for. Turning the control towards the left
enhances the mid frequencies; turning it to
the right enhances the low and high fre-
quencies.
4: LEVEL: Sets the output volume level
from the Overdrive Channel: in the far left
position there is no output; turning the con-
trol to the right increases the output. Use
this control along with the Gain and Shape
controls (#2 & 3) to create a wide variety of
sounds.
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5: OVERDRIVE: When this switch is
pressed in the Overdrive Channel is
engaged. The Clean Channel is selected
when this switch is out. A footswitch (#12)
overrides this switch.
CLEAN CHANNEL: A normal gain channel
designed to give you crystal clear sounds.
6: LEVEL: Sets the output volume level
from the Clean Channel: in the far left posi-
tion there is no output; turning the control
to the right increases the output level.
7: LOW: Adjusts the low frequency output
level: to the left reduces the low frequency
output; to the right increases it. This control
allows a range of 25dB at 80Hz.
8: MID: Adjusts the mid frequency output
level: to the left reduces the midrange out-
put; turning it to the right increases it. This
control allows a range of 19dB at 900Hz.
9: HIGH: Adjusts the high frequency output
level: to the left reduces the high frequency
output; to the right increases it. This control
allows a range of 23dB at 5kHz.
10: DSP LEVEL: Adjust the amount of dig-
ital signal processing with this control: in
the full left position the output signal is
"dry" (no effect); rotating the control to the
right increases the amount of effect. The
DSP can be turned on and off with an
optional footswitch (see #12).
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