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Panel descriptions
Control Panel
fig.01-01
1. INPUT Jack
Connect your guitar here.
2. SELECT Switch
Switches between the CLEAN and LEAD channels.
You can confirm which channel is selected by checking
the indicator’s color (JC CLEAN: left; LEAD: right).
Channels can be switched using optional BOSS FS-5U or
FS-6 footswitches.
3. TUNER Switch
The switch lights in red when the tuner function is on;
the switch is unlit when the tuner is off.
For more detailed information, refer to p. 8.
This is a model of Roland’s famous JC-120 Jazz Chorus guitar
amplifier. The ultra-clean, ultra-flat sound offers a smooth feel.
4. VOLUME Knob
Adjusts the JC CLEAN channel volume.
5. Type Switch
You can select from the following eight types.
When the tuner function is on, you can use this to select
the name of the string to be tuned (p. 8).
ACOUSTIC
By combining acoustic guitar simulation with COSM
amplifier modeling technology, this original amplifier
model gives you a dynamic acoustic guitar sound using
a standard electric guitar.
BLACK PANEL
This is modeled on the classic Fender Twin Reverb
amplifier, used in a wide variety of musical styles, from
country to blues, jazz and rock. Exhibiting rich lows and
a bright high end.
BRIT COMBO
This is modeled on the Vox AC-30TB, the rock amplifier
that created the Liverpool sound of the ’60s. It can
produce a broad range of sounds, from clean to
overdrive, with increased distortion and greater power in
the low-midrange when the amplifier’s gain is boosted.
TWEED
This is modeled on the vintage Tweed Fender Bassman
4x10 combo. The amplifier’s four 10-inch speakers produce
a clear upper-midrange with a fat low end, and its unique
crunch tones make it a favorite of blues-rock guitarists.
CLASSIC STACK
This is modeled on the sound and response of a Marshall
JMP1987. The legendary JMP1987 is renowned for its
smooth tone and presence-perfect for classic and hard rock.
METAL STACK
This is modeled on the Peavey EVH-5150. This is the
high gain amp, so even at low volumes, you can still get
heavy distortion and sustain.
R-FIER STACK
This is modeled on the MESA/Boogie Rectifier. This
super high gain amp is capable of producing slash metal,
grunge, and a wide range of other lead sounds.
DYNA AMP
This is an original amp sound that lets the player create
previously unobtainable tonal changes according to the
picking strength. Soft picking produces a transparent clean
amp sound, while hard picking results in a deeply
distorted high-gain amp sound. Once the sound is
distorted, the tone then changes according to the force used
in picking, greatly expanding your range of expression.
Use of the RECORDING OUT/PHONES jack allows even better
reproduction of the COSM-modeled sound.