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GX-212 Amplifier
1: INPUT: Connect your guitar here by means of
a shielded instrument cable.
OVERDRIVE CHANNEL: A high gain channel
giving you sounds from a slight edge to serious
overdrive.
2: GAIN 1: Gain 1 is active only when the Gain
Select switch (#5) is out. When active, this con-
trol adjusts the amount of compression and dis-
tortion from the amplifier. At far left, the sound
will have a thick compressed quality. As you turn
the control to the right the amount of distortion
increases. Gain 1 produces less intense distor-
tion than Gain 2.
3: GAIN 2: Gain 2 is active only when the Gain
Select switch (#5) is depressed. When active,
this control adjusts the amount of compression
and distortion from the amplifier. At far left, the
sound will have a thick compressed quality. As
you turn the control to the right the amount of
distortion increases. Gain 2 produces more
intense distortion than Gain 1 .
4: SHAPE: Working in conjunction with the Gain
2 control, rotate the Shape control until you find
the sound you’re looking for. Rotating the control
counter-clockwise enhances the mid frequen-
cies; rotating it clockwise enhances the low and
high frequencies. (This control is only effective
when Gain 2 is selected.)
5: GAIN SELECT: Use this switch to select Gain
1 (switch out) or Gain 2 (switch depressed). A
footswitch (#21) overrides this switch.
6: LOW: Use this control to adjust the low fre-
quency output level of the Overdrive channel.
This control provides a range of 11dB at 80Hz.
7: HIGH: Use this control to adjust the high fre-
quency output level of the Overdrive channel.
This control provides a range of 10dB at 10kHz.
8: LEVEL: Use this control to adjust the output
level of the Overdrive Channel. Use this control
along with the Gain and Shape controls (#2, 3 &
4) to create a wide variety of sounds.
9: CHANNEL SELECT: Use this switch to select
the Clean channel (switch out) or the Overdrive
channel (switch depressed). One of the triangu-
lar LEDs beside the switch will illuminate to indi-
cated which channel is selected. A footswitch
(#21) overrides this switch.
CLEAN CHANNEL: A normal gain channel
designed to give you crystal clear sounds.
10: LEVEL: Use this control to adjust the output
level of the Clean Channel.
11: LOW: Use this control to adjust the low fre-
quency output level of the Clean channel. This
control provides a range of 22dB at 80Hz.
12: MID: Use this control to adjust the mid fre-
quency output level of the Clean channel. This
control provides a range of 14dB at 600Hz.
13: HIGH: Use this control to adjust the high fre-
quency output level of the Clean channel. This
control provides a range of 28dB at 10kHz.
14: REVERB LEVEL: Use this control to adjust
the amount of reverberation. In the full counter-
clockwise position the output signal is “dry” (no
reverb); rotating the control clockwise increases
the amount of reverb. The reverb can be turned
on and off by means of a footswitch (see #22).
15: INSERT: Use this jack to connect an exter-
nal effects device to the amplifier. Use a stereo
1/4” male Y-cord: ring = send, tip = return, sleeve
= ground. See the illustration on the panel to the
right for more information.