All rights reserved. No part of this publication may be reproduced in
any form without the written permission of ROLAND CORPORATION.
201b
Before using this unit, carefully read the sections entitled: “IMPORTANT SAFETY
INSTRUCTIONS”, “USING THE UNIT SAFELY”
sections provide important information concerning the proper operation of the unit.
Additionally, in order to feel assured that you have gained a good grasp of every feature
provided by your new unit, Owner’s Manual should be read in its entirety. The manual
should be saved and kept on hand as a convenient reference.
•Do not attempt to repair the unit, or replace parts
within it (except when this manual provides
specific instructions directing you to do so). Refer
all servicing to your retailer, the nearest Roland
Service Center, or an authorized Roland
distributor, as listed on the “Information” page.
•Make sure you always have the unit placed so it is
level and sure to remain stable. Never place it on
stands that could wobble, or on inclined surfaces.
•Do not excessively twist or bend the power cord,
nor place heavy objects on it. Doing so can
damage the cord, producing severed elements
and short circuits. Damaged cords are fire and
shock hazards!
•This unit, either alone or in combination with an
amplifier and headphones or speakers, may be
capable of producing sound levels that could
cause permanent hearing loss. Do not operate for
a long period of time at a high volume level, or at
a
level that is uncomfortable. If you experience
any hearing loss or ringing in the ears, you should
immediately stop using the unit, and consult an
audiologist.
•In households with small children, an adult should
provide supervision until the child is capable of
following all the rules essential for the safe
operation of the unit.
•Immediately turn the power off, remove the
power cord from the outlet, and request servicing
by your retailer, the nearest Roland Service
Center, or an authorized Roland distributor, as
listed on the “Information” page when:
•At regular intervals, you should unplug the power
plug and clean it by using a dry cloth to wipe all
dust and other accumulations away from its
prongs. Also, disconnect the power plug from the
power outlet whenever the unit is to remain
unused for an extended period of time. Any
accumulation of dust between the power plug
and the power outlet can result in poor insulation
and lead to fire.
•Do not force the unit’s power-supply cord to share
an outlet with an unreasonable number of other
devices. Be especially careful when using
extension cords—the total power used by all
devices you have connected to the extension
cord’s outlet must never exceed the power rating
(watts/amperes) for the extension cord. Excessive
loads can cause the insulation on the cord to heat
up and eventually melt through.
•Before using the unit in a foreign country, consult
with your retailer, the nearest Roland Service
Center, or an authorized Roland distributor, as
listed on the “Information” page.
•Do not put anything that contains water (e.g.,
flower vases) on this unit. Also, avoid the use of
insecticides, perfumes, alcohol, nail polish, spray
cans, etc., near the unit. Swiftly wipe away any
liquid that spills on the unit using a dry, soft cloth.
•Do not remove the speaker grille and speaker by
any means. Speaker not user replaceable. Shock
hazardous voltages and currents are present
inside the enclosure.
•Do not connect this unit to same electrical outlet that is being
used by an electrical appliance that is controlled by an inverter
(such as a refrigerator, washing machine, microwave oven, or air
conditioner), or that contains a motor. Depending on the way in
which the electrical appliance is used, power supply noise may
cause this unit to malfunction or may produce audible noise. If it
is not practical to use a separate electrical outlet, connect
a
power supply noise filter between this unit and the electrical
outlet.
307
•Before connecting this unit to other devices, turn off the power
to all units. This will help prevent malfunctions and/or damage to
speakers or other devices.
308
•Although the LEDs are switched off when the POWER switch is
switched off, this does not mean that the unit has been
completely disconnected from the source of power. If you need
to turn off the power completely, first turn off the POWER switch,
then unplug the power cord from the power outlet. For this
reason, the outlet into which you choose to connect the power
cord’s plug should be one that is within easy reach and readily
accessible.
Placement
351
•Using the unit near power amplifiers (or other equipment
containing large power transformers) may induce hum. To
alleviate the problem, change the orientation of this unit; or
move it farther away from the source of interference.
352a
•This device may interfere with radio and television reception. Do
not use this device in the vicinity of such receivers.
352b
•Noise may be produced if wireless communications devices, such
as cell phones, are operated in the vicinity of this unit. Such noise
could occur when receiving or initiating a call, or while
conversing. Should you experience such problems, you should
relocate such wireless devices so they are at a greater distance
from this unit, or switch them off.
354b
•Do not expose the unit to direct sunlight, place it near devices
that radiate heat, leave it inside an enclosed vehicle, or otherwise
subject it to temperature extremes. Also, do not allow lighting
devices that normally are used while their light source is very
close to the unit (such as a piano light), or powerful spotlights to
shine upon the same area of the unit for extended periods of
time. Excessive heat can deform or discolor the unit.
355b
•When moved from one location to another where the
temperature and/or humidity is very different, water droplets
(condensation) may form inside the unit. Damage or malfunction
may result if you attempt to use the unit in this condition.
Therefore, before using the unit, you must allow it to stand for
several hours, until the condensation has completely
evaporated.
356
•Do not allow rubber, vinyl, or similar materials to remain on the
unit for long periods of time. Such objects can discolor or
otherwise harmfully affect the finish.
359
•Do not paste stickers, decals, or the like to this instrument.
Peeling such matter off the instrument may damage the exterior
finish.
360
•Depending on the material and temperature of the surface on
which you place the unit, its rubber feet may discolor or mar the
surface.
You can place a piece of felt or cloth under the rubber feet to
prevent this from happening. If you do so, please make sure that
the unit will not slip or move accidentally.
Maintenance
401a
•For everyday cleaning wipe the unit with a soft, dry cloth or one
that has been slightly dampened with water. To remove
stubborn dirt, use a cloth impregnated with a mild, non-abrasive
detergent. Afterwards, be sure to wipe the unit thoroughly with
a
soft, dry cloth.
402
•Never use benzine, thinners, alcohol or solvents of any kind,
to
avoid the possibility of discoloration and/or deformation.
452Kai
•Please be aware that unit settings or the contents of the solo
function stored in memory may be lost when the unit is sent for
servicing. Important data should always be written down on
paper. Roland assumes no liability with respect to recovery of
any lost data.
Additional Precautions
551Kai
•Please be aware that unit settings or the contents of the solo
function stored in memory can be irretrievably lost as a result of
a malfunction or the improper operation of the unit. To protect
yourself against the risk of losing important data, we recommend
that you periodically write down on paper any important data
you have stored in the unit’s memory.
552Kai
•Roland Corporation assumes no liability with respect to recovery
of any lost unit settings or contents of the solo function stored in
memory.
553
•Use a reasonable amount of care when using the unit’s buttons,
sliders, or other controls; and when using its jacks and
connectors. Rough handling can lead to malfunctions.
556
•When connecting / disconnecting all cables, grasp the connector
itself—never pull on the cable. This way you will avoid causing
shorts, or damage to the cable’s internal elements.
557
•A small amount of heat will radiate from the unit during normal
operation.
558a
•To avoid disturbing your neighbors, try to keep the unit’s volume
at reasonable levels. You may prefer to use headphones, so you
do not need to be concerned about those around you (especially
when it is late at night).
559a
•When you need to transport the unit, package it in the box
(including padding) that it came in, if possible. Otherwise, you
will need to use equivalent packaging materials.
562
•Some connection cables contain resistors. Do not use cables that
incorporate resistors for connecting to this unit. The use of such
cables can cause the sound level to be extremely low, or
impossible to hear. For information on cable specifications,
contact the manufacturer of the cable.
Add
•Do not insert hands, fingers, etc, into the openings in the unit’s
rear panel. In particular, if the unit is to used in households with
small children, always provide adult supervision to ensure that
children keep their hands and feet out of these openings.
4
Main Features
● A high-performance guitar amp equipped with a 30-cm (12-inch) speaker and delivering 80 watts of output
● Switchable between two-channels: JC CLEAN and LEAD
Switchable using a footswitch pedal (optional BOSS FS-6, FS-5U, or FS-5L).
● Ten types of COSM amplifiers (p. 6, p. 7)
A total of ten COSM amp types are built in, including a clean amp for the JC CLEAN channel and acoustic, crunch, high-gain, and the
original Dyna Amp for the LEAD channel.
Dyna Amp lets you achieve unprecedented tonal change and new expressiveness by varying your picking dynamics.
COSM (Composite Object Sound Modeling) is proprietary Roland modeling technology, which analyzes the way in which sound is
affected by elements such as electronic circuitry, structure, and materials, and combines these elements to reconstruct the desired
sound.
● SOLO function (p. 8, p. 16)
This lets you save and call up panel settings for tones you create with the LEAD channel, including amp type, gain, equalizer, and
effects. You can also manipulate these using a footswitch pedal (the optional BOSS FS-6, FS-5U, or FS-5L), letting you put them to use
in live performances.
● LOOPER function (p. 9, p. 17)
This lets you record, play back, and overdub a phrase you play to create your own loop phrase, enabling you to enjoy playing along
with the recorded loop phrase.
You can also manipulate this using a footswitch pedal (the optional BOSS FS-6, FS-5U, or FS-5L).
* The maximum recording time is approximately 40 seconds.
● Tuner function (p. 6, p. 19)
An easy-to-operate tuner is built in. This even supports flat tuning and seven-string guitars.
Chromatic tuning is possible, too.
● Independently operable delay and reverb (p. 9)
The unit is equipped with a DELAY knob and a REVERB knob. These let you control delay and reverb independently.
● Delay time adjustable through TAP input
You can also enter a short delay (30 to 90 ms) by giving the TAP switch a long press.
● Spring reverb modeling
Modeling technology replicates a spring reverb with realistic fidelity.
● Four types of easy-to-operate effects (p. 8)
Four types of effects — chorus, flanger, phaser, and tremolo — are built in, allowing easy operation with a single control.
● RECORDING OUT jack (p. 15)
The unit features a RECORDING OUT jack for connecting recording equipment. You can also use this as a headphone jack.
● AUX IN jack (p. 15)
You can use this to connect and play along with an MP3 or CD player.
This models the Roland JC-120.
This is a sound that readily extends up
to the treble range. This amp is ideal
for creating sounds in combination
with a multi-effects device.
BRIGHT Switch
This makes the mid and high ranges more brilliant, for
a
crisper sound.
VOLUME Knob
This adjusts the volume level of the JC CLEAN channel.
As
an original function on this unit, this can produce
powerful crunch at volume levels near the maximum.
a
SELECT Switch
This switches between the JC CLEAN and LEAD channels.
The indicator shows you which channel is selected.
You can also switch on the solo function by using this in
combination with the SOLO switch. For more information, refer
to
“Using the SOLO Function” (p. 16).
Switching channels can also be accomplished using a footswitch
pedal (optional BOSS FS-5U, FS-5L, or FS-6).
TUNER Switch
You use this when tuning the guitar.
Turning this on makes the switch light
in red and enables tuning.
For information on how to use the tuner,
“Using the Tuner Function” (p. 19).
refer to
6
LEAD Channel
You can select from nine COSM amp types.
TypeDescription
This is an original amp type that includes an
acoustic simulator.
It transforms the sounds from your electric
guitar into a clear, refined acoustic-guitar
sound.
ACOUSTIC SIM
BLACK PANEL
DLX COMBO
BRIT COMBO
Using this type together with a single-coil
pickup in the front position produces
optimal sound quality.
If you’re using humbucker pickups, turn
down the equalizer’s BASS and MIDDLE
controls slightly.
This is modeled on the classic Fender Twin
Reverb amplifier.
It’s used in a wide range of musical styles,
from country to blues, jazz, and rock.
It features rich lows and a bright high end.
This is modeled on the Fender Deluxe
Reverb amplifier.
This amp finds use in a full range of genres,
including surf music, blues, country, jazz,
soul, and hard rock.
It features clear, clean tones and sparkling
overdrive at high volumes.
This is modeled on the Vox AC-30TB.
This is the rock amplifier that created the
Liverpool sound of the 1960s.
It can produce a broad range of sounds,
from clean to overdrive.
Panel Descriptions
TypeDescription
This is modeled on the Peavey EVH 5150.
METAL STACK
R-FIER STACK
DYNA AMP
* The product names mentioned in this document are trademarks or
registered trademarks of their respective owners, and are not related to
Roland Corporation. In this manual, these names are used because it is
the most practical way of describing the sounds that are simulated
using COSM technology.
GAIN Knob
This adjusts the distortion level for the LEAD channel.
VOLUME Knob
This adjusts the volume level for the LEAD channel.
This is a high-gain amp, so you can get
heavy distortion and sustain even at low
volumes.
This super high-gain amp is modeled on
the Mesa/Boogie Rectifier.
This is a super high-gain amp. It’s capable of
producing slash metal, grunge, and a wide
range of other lead sounds.
This is an original amp type that lets you
obtain unprecedented tonal changes
according to your picking dynamics.
Soft picking produces a transparent clean
amp sound, whereas hard picking yields
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.
* Setting the GAIN knob at the optimal position
provides maximum effectiveness. Start with
the GAIN knob centered. Then adjust the
GAIN knob so that soft picking yields a clean
tone and hard picking produces heavy
distortion.
This is modeled on the vintage Fender
Tweed Bassman 4x10” Combo.
It produces a clear mid to upper range with
a fat low end, and its unique crunch tones
with persistent distortion have earned it
a
loyal following among blues and rock
guitarists.
This is modeled on the features of
a
Marshall JMP 1987.
Used extensively in hard rock in the 1970s,
this is truly the perfect amp for the “top
rock” guitar sound.
7
Panel Descriptions
SOLO Function
This lets you save the panel settings
for sounds you create with the LEAD
channel (such as amp type, gain,
equalizer, and various effects) and
call them up later.
On this unit, this function is called
“SOLO.”
The SOLO function is handy in situations like these:
• When you’re using the LEAD channel and you want to switch
the amp type and effect at the same time
• When you’re using the LEAD channel and you want to switch
the equalizer settings and volume level at the same time
* Settings for the JC CLEAN channel can’t be stored in memory.
SOLO Switch
This saves panel settings and calls up it.
VOLUME (SOLO) Knob
This adjusts the volume level for the called-up settings.
* For information on how to use the SOLO function, refer to “Using the
SOLO Function” (p. 16).
EQUALIZER
KnobDescription
BASS Knob
MIDDLE Knob
This adjusts the sound level of the lowfrequency range.
This adjusts the sound level of the
middle-frequency range.
PRESENCE Knob
This gives the midrange and high end a more lustrous contour.
This is effective when you want to make the sound more airy and
open.
EFX (Effects) Knob
You can adjust the intensity of four types of
effects—chorus, flanger, phaser, and
tremolo—by adjusting the positioning of this
knob.
The indicator lights up when this is on, and
goes out when it’s off. You can also switch
this on and off using an optional footswitch pedal.
* The scale indications for CHORUS, FLANGER, PHASER, and TREMOLO on
the panel are just a general guide. Be sure to check the actual sound as
you adjust the effect.
Knob PositionDescription
This adds a slightly detuned sound to
CHORUS
FLANGER
PHASER
TREMOLO
the original sound, giving the sound
greater breadth and fullness.
This creates a flanging effect that
creates a sort of spinning sensation
with the sound.
This adds a phase-shifted signal to the
original sound, giving the sound
a
swirling sensation.
This effect produces cyclical changes in
the volume level.
TREBLE Knob
* When the LEAD channel Type switch is set to BLACK PANEL, DLX
COMBO, or TWEED, setting BASS, MIDDLE and TREBLE all to 0 (zero)
stops all sound.
This adjusts the sound level of the highfrequency range.
8
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