Roland GC-408 User manual
Roland
s]
GC-408
OWNER'S
MANUAL
We'd
like
to
take
a
moment
to
thank
you
for
purchasing
the
Roland
GC-408
Guitar
Amplifier.
Before
using
this
unit,
carefully
read
the
sections
entitled:
"IMPORTANT
SAFETY
INSTRUCTIONS"
(page
2),
"USING
THE
UNIT
SAFELY"
(page
3),
and
“IMPORTANT
NOTES"
(page
4).
These
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,
this
manual
should
be
read
in
its
entirety.
The
manual
should
be
saved
and
kept
on
hand
as
a
convenient
reference.
Main
Features
e
With
60
watts
of
output,
and
four
newly
developed,
20
cm
(8
inch)
custom
speakers
mounted
in
a
closed-back
cabinet,
you
are
sure
to
achieve
the
powerful
sound
you
want.
In
addition,
"Tube
Logic
Hot
Technology*"
produces
a
natural
feeling
of
drive,
long-lasting
sustain,
and
the
perfect
amount
of
compression.
The
GC-408
gives
you
deep,
tight
low-range,
and
is
sure
to
provide
the
guitar
sounds
that
you've
been
looking
for.
e
Two
channels
are
provided—Clean
and
Lead—and
you
can use
a
footswitch
to
switch
channels.
A
footswitch
can
also
be
used
to
switch
Boost
on/off
for
the
lead
channel.
e
The
Power
Squeezer
switch
lets
you
achieve
the
tone
of
a
fully-driven
power
amp
at
a
more
restrained
Power
level.
e
You
have
total
control
over
your
sound,
with
a
three
band
equalizer
optimally
tuned
for
electric
guitar,
and
a
Low
Cut
switch
and
a
Presence
control
that
modify
the
tone
in
the
power
amp
section.
The
GC-408
gives
you
an
incredible
range
of
tonal
versatility.
e
The
built-in
spring
reverb
produces
rich
and
spacious
reverberation.
A
footswitch
can
be
used
to
turn
reverb
on/off.
e
Send/Return
jacks
are
provided
for
easy
connection
of
external
effects.
Any
type
of
effect
unit,
from
compact
pedals
to
rack-mount
equipment,
can
be
connected.
e
The
external
speaker
jack
allows
a
specially
designed
GC-408S
speaker
box
(sold
separately)
to
be
stacked
with
the
GC-408.
This
gives
you
80
watts
of
output
from
a
total
of
eight
speakers,
for
even
more
dynamic
sound.
*
Tube
Logic
Hot
Technology
"Tube
Logic
Technology"
reproduces
the
warm
tone,
creamy
overdrive
sound,
and
sensitive
response
to
the
nuances
of
your
playing
that
are
characteristic
of
vintage
tube
amps.
Roland's
analog
circuitry
technology
has
now
taken
this
one
step
further,
to
logically
reproduce
even
the
distortion
characteristics
and
dynamics
of
a
fully
driven
vacuum
tube
pre-amp
and
power
amp.
Copyright
©
1997
ROLAND
CORPORATION
All
rights
reserved.
No
part
of
this
publication
may
be
reproduced
in
any
form
without
the
written
permission
of
ROLAND
CORPORATION.
CAUTION
RISK
OF
ELECTRIC
SHOCK
DO
NOT
OPEN
A
A
ATTENTION:
aisque
DE
cHoc
ELECTRIQUE
NE
PAS
OUVRIR
CAUTION:
TO
REDUCE
THE
RISK
OF
ELECTRIC
SHOCK,
DO
NOT
REMOVE
COVER
(OR
BACK).
NO
USER-SERVICEABLE
PARTS
INSIDE.
`
REFER
SERVICING
TO
QUALIFIED
SERVICE
PERSONNEL.
The
lightning
flash
with
arrowhead
symbol,
within
an
equilateral
triangle,
is
intended
to
alert
the
user
to
the
presence
of
uninsulated
“dangerous
voltage”
within
the
product's
enclosure
that
may
be
of
sufficient
magnitude
to
constitute
a
risk
of
electric
shock
to
persons.
A
The
exclamation
point
within
an
equilateral
triangle
is
intended
to
alert
the
user
to
the
presence
of
important
operating
and
maintenance
(servicing)
instructions
in
the
literature
accompanying
the
product.
INSTRUCTIONS
PERTAINING
TO
A
RISK
OF
FIRE,
ELECTRIC
SHOCK,
OR
INJURY
TO
PERSONS.
IMPORTANT
SAFETY
INSTRUCTIONS
SAVE
THESE
INSTRUCTIONS
WARNING
-
When
using
electric
products,
basic
precautions
should
always
be
followed,
including
the
following:
—
Read
all
the
instructions
before
using
the
product.
.
Do
not
use
this
product
near
water
—
for
example,
near
a
bathtub,
washbowl,
kitchen
sink,
in
a
wet
basement,
or
near
a
swimming
pool,
or
the
like.
.
This
product
should
be
used
only
with
a
cart
or
stand
that
is
recommended
by
the
manufacturer.
.
This
product,
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
consult
an
audiologist.
.
The
product
should
be
located
so
that
its
location
or
position
does
not
interfere
with
its
proper
ventilation.
.
The
product
should
be
located
away
from
heat
sources
such
as
radiators,
heat
registers,
or
other
products
that
produce
heat.
.
The
product
should
be
connected
to
a
power
supply
only
of
the
type
described
in
the
operating
instructions
or
as
marked
on
the
product.
M
wo
D
o
©
N
electric
current
to
reduce
the
risk
of
electric
shock.
electrician.
WARNING:
THIS
APPARATUS
MUST
BE
EARTHED
GROUNDING
INSTRUCTIONS
This
product
must
be
grounded.
If
it
should
malfunction
or
breakdown,
grounding
provides
a
path
of
least
resistance
for
This
product
is
equipped
with
a
cord
having
an
equipment-grounding
conductor
and
a
grounding
plug.
The
plug
must
be
plugged
into
an
appropriate
outlet
that
is
properly
installed
and
grounded
in
accordance
with
all
local
codes
and
ordinances.
DANGER:
Improper
connection
of
the
equipment-grounding
conductor
can
result
in
a
risk
of
electric
shock.
Check
with
a
qualified
electrician
or
serviceman
if
you
are
in
doubt
as
to
whether
the
product
is
properly
grounded.
Do
not
modify
the
plug
provided
with
the
product
—
if
it
will
not
fit
the
outlet,
have
a
proper
outlet
installed
by
a
qualified
8.
The
power-supply
cord
of
the
product
should
be
unplugged
from
the
outlet
when
left
unused
for
a
long
period
of
time.
9.
Care
should
be
taken
so
that
objects
do
not
fall
and
liquids
are
not
spilled
into
the
enclosure
through
openings.
10.The
product
should
be
serviced
by
qualified
service
personnel
when:
A.
The
power-supply
cord
or
the
plug
has
been
damaged;
or
B.
Objects
have
fallen,
or
liquid
has
been
spilled
onto
the
product;
or
C.
The
product
has
been
exposed
to
rain;
or
D.
The
product
does
not
appear
to
operate
normally
or
exhibits
a
marked
change
in
performance;
or
E.
The
product
has
been
dropped,
or
the
enclosure
damaged.
11.Do
not
attempt
to
service
the
product
beyond
that
described
in
the
user-maintenance
instructions.
All
other
servicing
should
be
referred
to
qualified
service
personnel.
For
the
USA
For
the
U.K.
IMPORTANT:
THE
WIRES
IN
THIS
MAINS
LEAD
ARE
COLOURED
IN
ACCORDANCE
WITH
THE
FOLLOWING
CODE.
GREEN-AND-YELLOW:
EARTH,
BLUE:
NEUTRAL,
BROWN:
LIVE
As
the
colours
of
the
wires
in
the
mains
lead
of
this
apparatus
may
not
correspond
with
the
coloured
markings
identifying
the
terminals
in
your
plug,
proceed
as
follows:
The
wire
which
is
coloured
GREEN-AND-YELLOW
must
be
connected
to
the
terminal
in
the
plug
which
is
marked
by
the
letter
E
or
by
the
safety
earth
symbol
@
or
coloured
GREEN
or
GREEN-AND-YELLOW.
The
wire
which
is
coloured
BLUE
must
be
connected
to
the
terminal
which
is
marked
with
the
letter
N
or
coloured
BLACK.
The
wire
which
is
coloured
BROWN
must
be
connected
to
the
terminal
which
is
marked
with
the
letter
L
or
coloured
RED.
The
product
which
is
equipped
with
a
THREE
WIRE
GROUNDING
TYPE
LINE
PLUG
must
be
grounded.
USING
THE
UNIT
SAFELY
INSTRUCTIONS
FOR
THE
PREVENTION
OF
FIRE,
ELECTRIC
SHOCK,
OR
INJURY
TO
PERSONS
About
4\
WARNING
and
Z\
CAUTION
Notices
Used
for
instructions
intended
to
alert
the
user
to
the
risk
of
death
or
severe
injury
should
the
unit
be
used
improperly.
/NWARNING
Used
for
instructions
intended
to
alert
the
user
to
the
risk
of
injury
or
material
damage
should
the
unit
be
used
improperly.
ÁA
CAUTION
*
Material
damage
refers
to
damage
or
other
adverse
effects
caused
with
respect
to
the
home
and
all
its
furnishings,
as
well
to
domestic
animals
or
pets.
e
Before
using
this
unit,
make
sure
to
read
the
A
instructions
below,
and
the
Owner's
Manual.
e
Do
not
open
or
perform
any
internal
modifications
©
on
the
unit.
e
Make
sure
you
always
have
the
unit
placed
so
it
is
Q
level
and
sure
to
remain
stable.
Never
place
it
on
stands
that
could
wobble,
or
on
inclined
surfaces.
e
Avoid
damaging
the
pewer
cord.
Do
not
bend
it
S
excessively,
step
on
it,
place
heavy
objects
on
it,
etc.
A
damaged
cord
can
easily
become
a
shock
or
fire
hazard.
Never
use
a
power
cord
after
it
has
been
damaged.
e
In
households
with
small
children,
an
adult
should
provide
supervision
until
the
child
is
capable
of
fol-
lowing
all
the
rules
essential
for
the
safe
operation
of
the
unit.
e
Protect
the
unit
from
strong
impact.
(Do
not
drop
it!)
e
Do
not
force
the
unit's
power-supply
cord
to
share
SO
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.
e
Before
using
the
unit
in
a
foreign
country,
consult
A
with
your
retailer,
the
nearest
Roland
Service
Center,
or
an
authorized
Roland
distributor,
as
list-
ed
on
the
"Information"
page.
ALWAYS
OBSERVE
THE
FOLLOWING
About
the
Symbols
The
A
symbol
alerts
the
user
to
important
instructions
or
warnings.The
specific
meaning
of
the
symbol
is
determined
by
the
design
contained
within
the
triangle.
In
the
case
of
the
symbol
at
left,
it
is
used
for
general
cautions,
warnings,
or
alerts
to
danger.
The
©
symbol
alerts
the
user
to
items
that
must
never
be
carried
out
(are
forbidden).
The
specific
thing
that
must
not
be
done
is
indicated
by
the
design
contained
within
the
circle.
In
the
case
of
the
symbol
at
left,
it
means
that
the
unit
must
never
be
disassembled.
The
©
symbol
alerts
the
user
to
things
that
must
be
carried
out.
The
specific
thing
that
must
be
done
is
indicated
by
the
design
contained
within
the
circle,
In
the
case
of
the
symbol
at
left,
it
means
that
the
power-
cord
plug
must
be
unplugged
from
the
outlet.
A
CAUTION
e
Always
grasp
only
the
plug
on
the
power-supply
cord
when
plugging
into,
or
unplugging
from
an
outlet.
e
Try
to
prevent
cords
and
cables
from
becoming
entangled.
Also,
all
cords
and
cables
should
be
placed
so
they
are
out
of
the
reach
of
children.
e
Never
climb
on
top
of,
nor
place
heavy
objects
on
S
the
unit.
e
Never
handle
the
power
cord
or
its
plug
with
wet
SO
hands
when
plugging
into,
or
unplugging
from,
an
outlet.
e
Before
moving
the
unit,
disconnect
the
power
plug
fæ.
from
the
outlet,
and
pull
out
all
cords
from
external
devices.
e
Before
cleaning
the
unit,
turn
off
the
power
and
unplug
the
power
cord
from
the
outlet
(page
5).
e
Whenever
you
suspect
the
possibility
of
lightning
Aa”
in
your
area,
pull
the
plug
on
the
power
cord
out
of
<5
the
outlet.
IMPORTANT
NOTES
In
addition
to
the
items
listed
under
"IMPORTANT
SAFETY
INSTRUCTIONS"
and
"USING
THE
UNIT
SAFELY"
on
pages
2
and
3,
please
read
and
observe
the
following:
Power
Supply
¢
Do
not
use
this
unit
on
the
same
power
circuit
with
any
device
that
will
generate
line
noise
(such
as
an
electric
motor
or
variable
lighting
system).
e
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.
Placement
e
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.
This
device
may
interfere
with
radio
and
television
reception.
Do
not
use
this
device
in
the
vicinity
of
such
receivers.
*
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.
Excessive
heat
can
deform
or
discolor
the
unit.
This
unit
contains
powerful
magnets.
If
placed
in
the
vicinity
of
TVs,
it
may
cause
interference
(irregularities
in
color).
Should
this
occur,
reposition
this
unit
so
it
is
located
at
a
greater
distance
from
such
devices.
PANEL
DESCRIPTIONS
CONTROLS
(FRONT
PANEL)
shan
VOLUME
ala
lä
BOOST
mev
vi
ei
VOL
Maintenance
e
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.
e
Never
use
benzene,
thinners,
alcohol
or
solvents
of
any
kind,
to
avoid
the
possibility
of
discoloration
and/or
deformation.
Additional
Precautions
e
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.
e
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.
¢
A
small
amount
of
heat
will
radiate
from
the
unit
during
normal
operation.
To
avoid
disturbing
your
neighbors,
try
to
keep
the
unit's
volume
at
reasonable
levels
(especially
when
it
is
late
at
night).
e
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.
REVERS
PRESENCE
ow
ae
JACKS
(REAR
PANEL)
9
10
11
12131415
16
fe
CS
036
{
ramiz
alr
=
Dy
=
>
€
>
¢
er
=
>
»
SS
İİ
=
Şe
dem)
EXTERNAL
FOOT
SW.
‘SP
OUT
A
SEND
REVERB
=
BOOST
CH
SELECT
CAUTION
(a
ee
moc]
DE
esse
area)
WARNING:
17
18
val
19
20
21
1.
Input
Jacks
Connect
your
instrument
either
to
the
HIGH
or
LOW
jack,
as
appropriate
for
the
output
level
of
your
guitar.
Conventional
guitars
should
be
connected
to
HIGH,
and
high-output
instruments
to
LOW.
*
To
prevent
malfunction
and/or
damage
to
speakers
or
other
devices,
always
turn
down
the
volume,
and
turn
off
the
power
on
all
devices
before
making
any
connections.
2.
Channel
Select
Switch
This
selects
either
the
Clean
channel
or
the
Lead
channel.
The
selected
channel
is
shown
by
the
indicator
color
(Clean:
green;
Lead:
red).
The
channel
can
also
be
switched
using
an
optional
footswitch.
If
you
use
a
Boss
FS-5L
footswitch
(optional),
which
has
an
indicator,
the
footswitch
will
also
provide
a
visual
indication
of
the
selected
channel.
*
When
a
footswitch
is
connected,
the
Channel
Select
switch
on
the
front
panel
will
not
function.
*
In
some
cases,
a
slight
noise
may
occur
when
the
channel
is
switched.
Clean
Channel
3.
Bright
Switch
This
adds
sparkle
to
the
mid
to
high
range,
making
the
sound
crisper.
This
is
especially
effective
for
rhythm,
etc.
4.
Volume
This
adjusts
the
volume
of
the
clean
channel.
Lead
Channel
5.
Boost
Switch
This
boosts
the
lead
sound
to
give
it
more
body
and
edge.
This
can
also
be
switched
on/off
using
a
Boss
FS-5L
footswitch
(optional).
*
When
a
footswitch
is
connected,
the
Boost
switch
on
the
front
panel
will
not
function.
*
The
more
that
the
Pre
Volume
is
raised,
the
lesser
the
amount
of
change
obtained
when
the
Boost
Switch
is
pressed.
6.
Pre
Volume
This
adjusts
the
degree
of
distortion
for
the
lead
sound.
Used
in
conjunction
with
the
Boost
switch,
this
gives
you
a
wide
range
of
sounds
from
"crunch"
to
high-gain
distortion.
7.
Post
Volume
This
adjusts
the
volume
of
the
lead
channel.
Equalizer
8.
Bass
Adjusts
the
tone
of
the
low
range.
9.
Middle
Adjusts
the
tone
of
the
mid
range.
10.
Treble
Adjusts
the
tone
of
the
high
range.
Master
11.
Reverb
This
adjusts
the
volume
of
the
reverb.
If
you
connect
a
Boss
FS-
5L
footswitch
(optional),
the
reverb
can
be
switched
on/off
from
the
footswitch.
*
If
the
reverb
is
turned
down,
there
will
be
no
reverb
effect
even
if
the
footswitch
is
on.
12.
Presence
This
gives
sparkling
definition
to
the
mid
and
high
range.
Use
it
when
you
want
to
make
the
sound
crisper.
13.
Low
Cut
Switch
This
cuts
the
low
range,
tightening
up
the
sound
and
giving
it
more
cohesion.
e
Power
Squeezer
(14,
15)
The
Power
Squeezer
function
allows
you
to
achieve
the
tone
normally
associated
with
a
power
amp
driven
at
full
volume,
while
reducing
the
actual
power
to
a
manageable
level.
It
provides
a
convenient
way
to
get
the
sound
of
power
amp
distortion.
14.
Squeeze
Level
Switch
When
the
Power
Squeezer
switch
is
in
the
ACTIVE
position,
this
selects
the
amount
by
which
the
output
of
the
power
amp
will
be
attenuated.
50%:
reduce
the
power
by
50%
80%:
reduce
the
power
by
80%
*
At
low
volumes,
operating
the
Squeeze
Level
switch
will
not
cause
a
noticeable
difference
in
the
volume.
This
is
normal
and
does
not
indicate
a
malfunction.
15.
Power
Squeezer
Switch
When
this
switch
is
in
the
ACTIVE
position,
the
Power
Squeezer
function
will
operate.
16.
Power
Switch
This
turns
the
power
on/off.
When
it
is
on,
the
switch
will
light.
*
Once
the
connections
have
been
completed,
turn
on
power
to
your
various
devices
in
the
order
specified.
By
turning
on
devices
in
the
wrong
order,
you
risk
causing
malfunction
and/or
damage
to
speakers
and
other
devices.
External
Effects
Device
->
GC-408
*
This
unit
is
equipped
with
a
protection
circuit.
A
brief
interval
(a
few
seconds)
after
power
up
is
required
before
the
unit
will
operate
normally.
17.
External
Speaker
Jack
A
specially-designed
GC-4085
external
speaker
box
(optional)
can
be
connected
to
this
jack.
This
provides
80
W
of
output
power.
If
you
wish
to
connect
a
different
external
speaker,
make
sure
that
the
impedance
is
8
Q
or
more.
18.
Effect
Send/Return
Jacks
These
jacks
are
used
when
connecting
external
effects.
Connect
the
Effect
Send
jack
to
the
input
of
your
external
effect
device,
and
connect
the
output
of
the
external
effect
to
the
Effect
Return
jack.
19.
Footswitch
Jack
(Reverb)
A
footswitch
such
as
a
Boss
FS-5L
(optional)
can
be
connected
here
to
switch
Reverb
on/off.
20.
Footswitch
Jack
(Boost)
A
footswitch
such
as
a
Boss
FS-5L
(optional)
can
be
connected
here
to
switch
Boost
on/off.
21.
Footswitch
Jack
(Channel
Select)
A
footswitch
such
as
a
Boss
FS-5L
(optional)
can
be
connected
here
to
switch
channels.
Example
of
connecting
external
Stack
connection
with
a
GC-408S
effects
to
the
GC-408
Use
the
cable
included
with
the
GC-408S
to
make
connections
, .
as
shown
in
the
diagram.
By
connecting
effects
such
as
delay
or
chorus
as
shown
in
the
8
diagram,
you
can
apply
the
effects
to
the
sound
after
it
has
been
distorted
by
the
pre-amp.
[Fe
7
0000
Pewee
OUTPUT
1
|
>
|
Speaker
Box
a
<=—
GC-408S
Ni
i
(Optional)
(INPUT
i
5
k=
—
(Front
view)
(Back
view)
*
The
jack
on
the
GC-408S
is
designed
solely
for
the
GC-408
guitar
amp.
*
Do
not
place
this
amplifier
on
unstable
stands,
or
on
inclined
surfaces.
Be
sure
to
place
it
only
on
level
surfaces
where
it
is
sure
to
remain
stable.
Setting
Examples
*
Reverb
Knob:
Adjust
reverb
level
as
your
taste.
CLEAN
RHYTHM:
A
dazzling
rhythm
sound
obtained
through
the
Bright
switch
and
Presence
control.
LEAD
BOOST
PREVOL
O
POST
VOL
‘Tuned
by
Roland
Audio
Development
Corp.,
California,
USA
CLEAN
ON
BLUES:
A
power
amp
crunch
sound,
accentuated
by
the
natural
sounding
distortion
that
the
Power
Squeezer
produces.
BOOST
mev
A
noer,
voL
a
il
=
m.
e.
ACTIVE
CLEAN
OFF
ON
80%
Tuned
by
Roland
Audio
Dovelopment
Corp.,
Califonia,
US.A.
ROCK:
Straight
rock
guitar
sound
often
used
by
60's
and
70's
blues-based
rock
guitarists.
tube
Logic”
Tween
CH
SEL
san
You
Boost
metal
POST
VOL
REVERB
PRESENCE
gi
uma
A
anan
SQUEEZE
——
ETE
METERNE
Tüned
by
Roland
Audio
Development
Corp.,
Calitomi
=
LEAD
OFF
OFF
METAL:
A
metal
sound
with
really
deep
bass,
and
a
reduced
midrange.
REVERB
PRESENCE
=
op
ea
err
ae
LEAD
ON
Specification
Rated
Power
Output
EW
/80
80
W
/
4
Q
(When
the
speaker
box
GC-4085S
is
connected.)
Nominal
Input
Level
@1
kHz
CLEAN
Channel
INPUT
HIGH
-36
dBm
/
680
kQ
INPUT
LOW
-26
dBm
/
100
kQ
LEAD
Channel
INPUT
HIGH
-65
dBm
/
680
kQ
INPUT
LOW
-55
dBm
/
100
kQ
0
dBm
=
0.775
Vrms
Speakers
20
cm
(8
inches)
x
4
Controls
CHANNEL
SELECT
Switch
CLEAN
Channel
BRIGHT
Switch
VOLUME
Knob
LEAD
Channel
BOOST
Switch
PRE
VOLUME
Knob
POST
VOLUME
Knob
EQUALIZER
BASS
Knob
MIDDLE
Knob
TREBLE
Knob
MASTER
REVERB
Knob
PRESENCE
Knob
LOW
CUT
Switch
SQUEEZE
LEVEL
Switch
POWER
SQUEEZER
Switch
POWER
Switch
(w/Indicator)
€
€
This
product
complies
with
the
requirements
of
European
Directives
EMC
89/336/EEC
and
LVD
73/23/EEC.
Indicators
CLEAN
Channel
LEAD
Channel
Connectors
INPUT
Jack
(HIGH,
LOW)
FOOT
SWICH
Jack
(CHANNEL
SELECT,
BOOST,
REVERB)
EFFECT
SEND
Jack
EFFECT
RETURN
Jack
EXTERNAL
SP
OUT
Jack
Power
Supply
AC
117
V,
230
V
or
240
V
Power
Consumption
85W
Dimensions
561
(W)
x
316
(D)
x
576
(H)
mm
22-1/8
(W)
x
12-1/2
(D)
x
22-11/16
(H)
inches
Weight
20.6
kg
/
45
lbs
7
oz
Accessories
Owner's
Manual
Options
Footswitch
FS-5L
(BOSS)
External
speaker
box
GC-4085
*
In
the
interest
of
product
improvement,
the
specifications
and/or
appearance
of
this
unit
are
subject
to
change
without
prior
notice.
For
EU
Countries
Information
When
you
need
repair
service,
call
shown
below.
ARGENTINA
Instrumentos
Musicales
S.A.
Florida
638
(1005)
Buenos
Aires
ARGENTINA
TEL:
(01)
394
4029
BRAZIL
Roland
Brasil
Ltda.
R.
Coronel
Octaviano
da
Silveira
203
05522-010
Sao
Paulo
BRAZIL
TEL:
(011)
843
9377
CANADA
Roland
Canada
Music
Ltd.
(Head
Office)
5480
Parkwood
Way
Richmond
B.
C.,
V6V 2M4
CANADA
TEL:
(0604)
270
6626
Roland
Canada
Music
Ltd.
(Toronto
Office)
Unit
2,
109
Woodbine
Downs
Blvd,
Etobicoke,
ON
M9W
6Y1
CANADA
TEL:
(0416)
213
9707
MEXICO
Casa
Veerkamp,
s.a.
de
c.v.
Av.
Toluca
No.
323
Col.
Olivar
de
los
Padres
01780
Mexico
D.F.
MEXICO
TEL:
(525)
668
04 80
La
Casa
Wagner
de
Guadalajara
s.a.
de
c.v.
Av.
Corona
No.
202
S.J.
Guadalajara,
Jalisco
Mexico
C.P.44100
MEXICO
TEL:
(03)
613
1414
PANAMA
Productos
Superiores,
S.A.
Apartado
655
-
Panama
1
REP.
DE
PANAMA
TEL:
26
3322
U.S.A.
Roland
Corporation
U.S.
7200
Dominion
Circle
Los
Angeles,
CA.
90040-3696,
U.S.
A.
TEL:
(0213)
685
5141
VENEZUELA
Musicland
Digital
C.A.
Av.
Francisco
de
Miranda,
Centro
Parque
de
Cristal,
Nivel
C2
Local
20
Caracas
VENEZUELA
TEL:
(02)
285
9218
AUSTRALIA
Roland
Corporation
Australia
Pty.
Ltd.
38
Campbell
Avenue
Dee
Why
West.
NSW
2099
AUSTRALIA
TEL:
(02)
982
8266
NEW
ZEALAND
Roland
Corporation
(NZ)
Ltd.
97
Mt.
Eden
Road,
Mt.
Eden,
Auckland
3,
NEW
ZEALAND
TEL:
(09)
3098
715
CHINA
Beijing
Xinghai
Musical
Instruments
Co.,
Ltd.
2
Huangmuchang
Chao
Yang
District,
Beijing,
CHINA
TEL:
(010)
6774
7491
HONG
KONG
Tom
Lee
Music
Co.,
Ltd.
Service
Division
22-32
Pun
Shan
Street,
Tsuen
Wan,
New
Territories,
HONG
KONG
TEL:
2415
0911
Roland
Corporation
INDONESIA
PT
Galestra
Inti
Kompleks
Perkantoran
Duta
Merlin
Blok
E
No.6—7
Ji.
Gajah
Mada
No.3—5,
Jakarta
10130,
INDONESİA
TEL:
(021)
6335416
KOREA
Cosmos
Corporation
Service
Station
261
2nd
Floor
Nak-Won
Arcade
Jong-Ro
ku,
Seoul,
KOREA
TEL:
(02)
742
8844
MALAYSIA
Bentley
Music
SDN
BHD
No.142,
Jalan
Bukit
Bintang
55100
Kuala
Lumpur,
MALAYSIA
TEL:
(03)
2443333
PHILIPPINES
G.A.
Yupangco
&
Co.
Inc.
339
Gil
J.
Puyat
Avenue
Makati,
Metro
Manila
1200,
PHILIPPINES
TEL:
(02)
899
9801
SINGAPORE
Swee
Lee
Company
BLOCK
231,
Bain
Street
#03-23
Bras
Basah
Complex,
SINGAPORE
0718
TEL:
3367886
CRISTOFORI
MUSIC
PTE
LTD
335,
Joo
Chiat
Road
SINGAPORE
1542
TEL:
3450435
TAIWAN
ROLAND
TAIWAN
ENTERPRISE
CO.,
LTD.
Room
5,
9fl.
No.
112
Chung
Shan
N.Road
Sec.2,
Taipei,
TAIWAN,
R.O.C.
TEL:
(02)
561
3339
THAILAND
Theera
Music
Co.
,
Ltd.
330
Verng
Nakorn
Kasem,
Soi
2,
Bangkok
10100,
THAILAND
TEL:
(02)
2248821
BAHRAIN
Moon
Stores
Bad
Al
Bahrain
Road,
P.O.Box
20077
State
of
BAHRAIN
TEL:
211
005
IRAN
TARADIS
Mir
Emad
Ave.
No.
15,
10th
street
P.O.
Box
15875/4171
Teheran,
IRAN
TEL:
(021)
875
6524
ISRAEL
Halilit
P.
Greenspoon
&
Sons
Ltd.
8
Retzif
Ha'aliya
Hashnya
St.
Tel-Aviv-Yafo
ISRAEL
TEL:
(03)
6823666
JORDAN
AMMAN
Trading
Agency
Prince
Mohammed
St.
P.
O.
Box
825
Amman
11118
JORDAN
TEL:
(06)
641200
KUWAIT
Easa
Husain
Al-Yousifi
P.O.
Box
126
Safat
13002
KUWAIT
TEL:
5719499
LEBANON
A.
Chahine
&
Fils
P.O.
Box
16-5857
Gergi
Zeidan
St.
Chahine
Building,
Achrafieh
Beirut,
LEBANON
TEL:
(01)
335799
OMAN
OHI
Electronics
&
Trading
Co.
LLC
P.
O.
Box
889
Muscat
Sultanate
of
OMAN
TEL:
706
010
QATAR
Badie
Studio
&
Stores
P.O.Box
62,
DOHA
QATAR
TEL:
423554
SAUDI
ARABIA
Abdul
Latif
S.
Al-Ghamdi
Trading
Establishment
Middle
East
Commercial
Center
Al-Khobar
Dharan
Highway
W/hamood
st.
P.
O.
Box
3631
Al-Khober
31952
SAUDIARABIA
TEL:
(03)
898
2332
SYRIA
Technical
Light
&
Sound
Center
Khaled
Ebn
Al
Walid
St.
P.O.Box
13520
Damascus
-
SYRIA
TEL:
(011)
2235
384
TURKEY
Barkat
Sanayi
ve
Ticaret
Siraselvier
Cad.
Guney
Ishani
No.
86/6
Taksim,
Istanbul
TURKEY
TEL:
(0212)
2499324
U.A.E
Zak
Electronics
&
Musical
Instruments
Co.
Zabeel
Road,
Al
Sheroog
Bldg.,
No.
14,
Grand
Floor
DUBAI
U.A.E.
P.O.
Box
8050DUBAI,
U.A.E
TEL:
(04)
360715
EGYPT
Al
Fanny
Trading
Office
9,
Ebn
Hagar
Ai
Askalany
Street,
Ard
El
Golf,
Heliopolis,
Cairo,
11341
EGYPT
TEL:
(02)
4171828
(02)
4185531
KENYA
Musik
Land
Limited
P.O
Box
12183
Moi
Avenue
Nairobi
Republic
of
KENYA
TEL:
(2)
338
346
REUNION
FO
-
YAM
Marcel
25
Rue
Jules
MermanZL
Chaudron
-
BP79
97491
Ste
Clotilde
REUNION
TEL:
28
29
16
SOUTH
AFRICA
That
Other
Music
Shop
(PTY)
Ltd.
11
Melle
Street
(Cnr
Melle
and
Juta
Street)
Braamfontein
2001
Republic
of
SOUTH
AFRICA
TEL:
(011)
403
4105
Paul
Bothner
(PTY)
Ltd.
17
Werdmuller
Centre
Claremont
7700
Republic
of
SOUTH
AFRICA
TEL:
(021)
64
4030
AUSTRIA
E.
Dematte
&Co.
*
Neu-Rum
Siemens-Strasse
4
A-6040
Innsbruck
P.O.Box
83
AUSTRIA
TEL:
(0512)
26
44
260
BELGIUM/HOLLAND/
LUXEMBOURG
Roland
Benelux
N. V.
Houtstraat
1
B-2260 Oevel-
Westerlo
BELGIUM
TEL:
(014)
575811
BELORUSSIA
TUSHE
UL.
Rabkorovskaya
17
220001
MINSK
TEL:
(0172)
764-911
CYPRUS
Radex
Sound
Equipment
Ltd.
17
Diagorou
St.,
P.O.Box
2046,
Nicosia
CYPRUS
TEL:
(02)
453
426
(02)
466
423
DENMARK
Roland
Scandinavia
A/S
Langebrogade
6
Post
Box
1937
DK-1023
Copenhagen
K.
DENMARK
TEL:32953111
FRANCE
MUSIKENGRO
Zac
de
Folliouses
01706
Les
Echets
Miribel
FRANCE
TEL:
472
26
2700
FINLAND
Roland
Scandinavia
As,
Filial
Finland
Lauttasaarentie
54
B
Fin-00201
Helsinki,
FINLAND
P.
O.
Box
No.
109
TEL:
(0)
682
4020
GERMANY
Roland
Elektronische
Musikinstrumente
Handelsgesellschaft
mbH.
Oststrasse
96,
22844
Norderstedt,
GERMANY
TEL:
(040)
52
60090
GREECE
V.
Dimitriadis
&
Co.
Ltd.
20,
Alexandras
St.
&
Bouboulinas
54
St.
106
82
Athens,
GREECE
TEL:
(01)
8232415
HUNGARY
Intermusica
Ltd.
Warehouse
Area
‘DEPO’
Pf.83
H-2046
Torokbalint,
HUNGARY
TEL:
(23)
338
041
IRELAND
The
Dublin
Service
Centre
Audio
Maintenance
Limited
11
Brunswick
Place
Dublin
2
Republic
of
IRELAND
TEL:
(01)
677322
ITALY
Roland
Italy
S.
p.
A.
Viale
delle
Industrie,
8
20020
Arese
Milano,
ITALY
TEL:
(02)
93581311
NORWAY
Roland
Scandinavia
Avd.
Kontor
Norge
Lilleakerveien
2
Postboks
95
Lilleaker
N-0216
Oslo
NORWAY
TEL:
273
0074
POLAND
P.
P.
H.
Brzostowicz
Marian
UL.
Blokowa
32,
03624
Warszawa
POLAND
TEL:
(022)
679
44
19
PORTUGAL
Caius
-
Tecnologias
Audio
e
Musica
,
Lda.
Rue
de
Catarina
131
4000
Porto,
PORTUGAL
TEL:
(02)
38
4456
RUSSIA
Slami
Music
Company
Sadojava-Triumfalnaja
st.,
16
103006
Moscow,
RUSSIA
TEL:
095
209
2193
your
nearest
Roland
Service
Center
or
authorized
Roland
distributor
in
your
country
as
SPAIN
Roland
Electronics
de
Espaiia,
S.
A.
Calle
Bolivia
239
08020
Barcelona,
SPAIN
TEL:
(93)
308
1000
SWEDEN
Roland
Scandinavia
A/S
Danvik
Center
28
A,
2
tr.
S-131
30
Nacka
SWEDEN
TEL:
(08)
702
0020
SWITZERLAND
Roland
(Switzerland)
AG
Musitronic
AG
Gerberstrasse
5,
CH-4410
Liestal,
SWITZERLAND
TEL:
(061)
921
1615
UKRAINE
TIC-TAC
Mira
Str,
19/108
P.O.Box
180
295400
Munkachevo,
UKRAINE
TEL:
(03131)
414-40
UNITED
KINGDOM
Roland
(U.K.)
Ltd.,
Swansea
Office
Atlantic
Close,
Swansea
Enterprise
Park
SWANSEA.
West
Glamorgan
SA7
9FJ,
UNITED
KINGDOM
TEL:
(01792)
702701
As
of
June,
12,
1997
SS000103
97-8-C3-11SH
801-929
Roland’
$$000103
$s000103
Roland
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