Rocktron Rampage RB 20 - Manual (Page 4)

Input Jack
Using a standard guitar cable with a 1/4” jack - plug your bass into
this jack.
Master Volume Control
The control adjusts the overall output of the amplifier. When
turning the amplifier on, make sure this control is turned all the
way down to zero.
Treble, Middle and Bass Controls
These controls adjust the main equalization of the sound.
Presence Control
Ths control adds “bite” to the overall attack of your playing.
Line Out Jack
Use this jack for recording, direct to a PA system, or to a power
amplifier
Headphone Jack
This 1/4” jack is used to connect to stereo headphones. Plugging
into this automatically mutes the speaker. This can also be used for
direct recording as well in situations where you want to mute the
speaker while recording.
On/Off Switch
This turns the amplifier on and off. When the switch is “lit” then
the amplifier is “on”.
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Front Panel