2 – Part names and functions
TASCAM GA-100CD
1
4 - Using the guitar amp
Choosing the channel
Guitar amp gain, equalization and output
The clean and overdrive channels have the same types
of control knobs.
Adjust the volume of each channel with its
GAIN
and
VOLUME
knobs. Use the
MAIN MASTER VOLUME
knob to control the final volume output of the guitar
amp main speaker.
The
GAIN
knob adjusts input gain, and the
VOLUME
knob adjusts the channel output level. Raise the
gain to
increase distortion. Even a small amount of gain creates
distortion in the overdrive channel. Distortion does not
become audible in the clean channel until the gain is
raised significantly. With a single coil pickup guitar, for
example, distortion starts around 4.
Choose the overdrive channel to use distortion, and
adjust the
GAIN
knob until you achieve the amount that
you desire.
Choose the clean channel and set the
GAIN
knob low
for an undistorted sound.
Adjust the overall volume with the
VOLUME
knob and
the
MAIN MASTER VOLUME
knob. Adjusting these
knobs will not affect the tone quality.
Adjust the
BASS
,
MIDDLE
and
TREBLE
knobs to alter
the tone quality (frequency characteristics) further.
NOTE
The
MAIN
MASTER VOLUME
knob adjusts the
overall volume of the output signal sent to the
main speaker (12-inch). If an effect is used, it will be
output along with the guitar amp output.
The GA-100CD has independent clean and overdrive
channels. Use the
CLEAN/OVERDRIVE key
to choose
the channel.
When the green light is ON, the
CLEAN
section is
active and when the red light is ON the
OVERDRIVE
section is active .
You can also change the channel using a TASCAM
RC-30P or similar footswitch connected to the
GUITAR
CHANNEL
footswitch jack on the rear panel.
Adjusting the volume and tone quality
