4
1. INPUT Jack
Connect your electric guitar here.
2. [SELECT] Switch
Switches between the JC CLEAN and LEAD channels.
You can conrm which channel is selected by checking which red
indicator is lit. (JC CLEAN: left; LEAD: right).
Channels can be switched using optional BOSS FS-5U or FS-6 foot
switches.
3. [TUNER] Switch
Use this when you want to tune your guitar. When you turn on the
switch, it will light red, and you’ll be able to use the Tuner function.
For more detailed information, refer to “Using the Tuner Function” (p. 7).

JC CLEAN Channel

This is a model of Roland’s famous JC-120 Jazz Chorus guitar amplier.
The ultra-clean, ultra-at sound oers a smooth feel. This amp is ideal
for creating sounds in combination with a multi-eects device.
4. [VOLUME] Knob
Adjusts the JC CLEAN channel volume.

LEAD Channel

5. Type Switch
You can select from the following six types.
When the tuner function is on, you can use this to select the name of
the string to be tuned (p. 7).
Type Description
ACOUSTIC SIM
This original amp model gives you a dynamic
acoustic guitar sound using a standard electric
guitar.
OVERDRIVE Natural distortion sound similar to that obtained
by turning an amp’s volume up completely.
DISTORTION Harder distortion than OVERDRIVE.
METAL Even harder and heavier than DISTORTION, which
can get long sustained notes.
METAL STACK Very fat sound of a Heavy Metal full amp stack.
EXTREME
High-gain sound delivering thick lows and
intense distortion while still preserving the
sound’s clear denition.
6. [GAIN] Knob
Adjusts the LEAD channel’s distortion level.
7. [VOLUME] Knob
Adjusts the LEAD channel volume.
Panel Descriptions

Control Panel

1 4
16
17
158 9 10 11 12
136 752 3 14