FRONT PANEL FUNCTIONS
1. POWER SWITCH
Mains power is on when set to the on posion.
2. STANDBY SWITCH
The unit power is in low power mode (5W)
when set to low, it is set to standby when in the
middle posion and when set to high power the
unit runs at full power (20W).
Standby mode: this should be used during
breaks in performances, instead of leaving the
amp on full power. Always turn the power on for
two minutes before using the standby switch.
3. POWER INDICATOR
Illuminates when unit is switched on.
4. PRESENCE
Adjusts the high frequencies of the power amp.
Increasing the high frequencies adds more bite
to your sound.
5. BASS
Adjusts the low frequencies of the amp. It will
add boom end and depth to your sound.
6. MIDDLE
Adjusts the mid frequencies of the amp. Giving
you anything from a fat and full sound to an
aggressive tone.
7. TREBLE
Adjusts the upper frequencies of the amp. Your
tone will get brighter as it is turned up.
8. HIGH TREBLE / LOUDNESS 1
A volume control that changes the loudness of
the high treble inputs.
9. NORMAL / LOUDNESS 2
A volume control that changes the loudness of
the normal inputs.
10 & 11. HIGH TREBLE INPUTS (1)
The high treble voicing provides a bright, crisp
tone. Plug your guitar into the high sensivity
input (10) for higher gain (or to compensate for
low output pickups) or low sensivity input (11)
for cleaner tones (or to compensate for higher
output pickups).
12 & 13. NORMAL INPUTS (2)
The normal voicing provides a more rounded,
full tone. Plug your guitar into the high
sensivity input (12) for higher gain (or to
compensate for low output pickups) or low
sensivity input (13) for cleaner tones (or to
compensate for higher output pickups).
ST20H
1 432 5 6 7 8 9 11
10
13
12
ST20C
13 8911 7 6 5 4 3 2 1
12 10
4
ENGLISH