User Manual

4
Rocket Bass Combo Series
Top Panel Features
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1. –15 dB INPUT: The attenuation of this 1/4”
input is suited for use with basses that have
active electronics or high-output pickups.
Connect here using a shielded instrument
cable.
2. 0 dB INPUT: The signal output from a
passive instrument may be connected to this
1/4” input. Connect here using a shielded
instrument cable.
3. SGT LED: This LED illuminates amber when
the SGT overdrive circuit is on.
4. SGT ON/OFF: Engage this switch to activate
the SGT overdrive circuit. This allows
for varying amounts of tube-like grit and
distortion.
5. GRIT: Use to adjust the amount of SGT
"grit." Turn the knob clockwise for a more
overdriven sound (RB-110, RB-112, RB-115,
RB-210).
6. LEVEL: Use to control the overall level of
the SGT overdrive circuit. Turn the knob
clockwise to increase the SGT level. (RB-110,
RB-112, RB-115, RB-210).
7. VOLUME: Use to control the amplifier's
overall output level. It affects the preamp
level fed to the Speaker and Phones outputs.
Use it wisely and turn down when making
connections, wearing headphones, or when
trying something new. This control does not
affect any signal coming into to the Aux Input
(14).
8. ULTRA HI: This switch, when engaged,
enhances the amount of high frequency
output with 5 dB boost at 8 kHz (RB-112,
RB-115, RB-210).
9. ULTRA LO: This switch, when engaged,
enhances the amount of low-end output with
a 1 dB boost at 40 Hz, and a 10 dB cut at
500 Hz (RB-112, RB-115, RB-210).
10. BASS: Use to adjust the low frequency level
of the amplifier. The low frequency output is
flat at the center, "0" knob position. Rotate
the control counter clockwise from 0 to
reduce the bass frequencies—or clockwise
from 0 to increase the bass frequencies.
See the following pages for Technical
Specifications.
11. MIDRANGE: Use to adjust the midrange
frequency level of the amplifier. The midrange
frequency level is flat at the center "0" knob
position. Rotate the control counter clockwise
for a "contoured" sound (more distant, less
midrange output), or clockwise for a sound
that really cuts through (increased midrange).
See the following pages for Technical
Specifications.
12. TREBLE: Use to adjust the high frequency
level of the amplifier. The high frequency level
is flat at the center "0" knob position. Rotate
the control counter clockwise from 0 to
reduce the treble frequencies—or clockwise
from 0 to increase the treble frequencies.
See the following pages for Technical
Specifications.