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Boss DD-2 User Manual

Boss DD-2
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CONNECTING
AC
ADAPTOR
BOSS
PSA-series
TO
AC
Adaptor
Jack
Power
is
switched
on
while
a
plug
is
put
into
Input
Jack.
@Connect
only
to
this
jack
to
obtain
monaural
sound.
@Mixed
sound
of
the
delay
and
direct
in
Normal
made.
@
Only
the
delay
sound
in
Ste-
reo
mode.
Digital
Delay
10:2
AMPLIFIER
DD-2
In
case
requiring
only
the
delay
sound
(for
connecting
to
Echo
Send/Return
of
a
mixer),
use
only
the
Direct
Output
Jack.
Only
the
direct
sound
AMPLIFIER
(Unplug
this
unit
when
it
is
not
to
be
used,
Be
sure
to
take
off
connecting
plug
from
Input
jack.)
DESCRIPTION
CHECK
INDICATOR
The
Check
Indicator
enables
you
to
confirm
if
the
Effect
is
ON
or
OFF,
and
as
well
to
check
the
battery.
If
the
Check
Indicator
lights
up
by
pressing
the
Pedal
Switch
down,
Delay
Effect
is
on,
and
if
goes
out,
Delay
Effect
is
OFF
(Normal).
*Hold
Effect
works
as
long
as
the
pedal
is
held
down.
DELAY
TIME
This
knob
allows
to
finely
adjust
the
delay
time
set
with
the
Mode
Selector
Switch
by
from
‘'X
0.25"
to
“X1"
continueously.
Turning
this
knob
clockwise
increases
the
delay
time,
and
counterclockwise
decreases
it.
LEAD
GUITAR
BASS
GUITAR
KEYBOARD
—_—__________—e
AC
ADAPTOR
JACK
The
AC-adaptor
(BOSS
PSA-120,
220
or
240)
should
be
connected
to
this
jack.
*BOSS
ACA-series
must
not
be
connected,
use
specifically
PSA-series.
*The
battery
should
be
replaced,
when
the
indi-
cator
lights
but
only
dimly
or
does
not
light
Bama
EFFECT
LEVEL
This
knob
controls
the
output
level
of
the
delay
sound.
Turing
this
knob
clockwise
increases
the
level
of
the
delay
sound.
With
this
knob
turned
fully
counterclockwise,
the
output
level
of
the
delay
sound
is
equivalent
to
that
of
the
direct
sound.
Also
when
this
knob
is
turned
fully
counterclockwise
in
Normal
mode,
only
the
direct
sound
is
obtained,
while
no
sound
is
heard
from
the
Main
Output
in
Stereo
mode.
MAIN
OUTPUT
JACK
Monaural
signal
(the
mixed
signal
of
the
direct
INPUT
JACK
This
jack
should
be
connected
to
an
electric
guitar
or
other
musical
instrument.
*The
unit
is
powered
on
by
plugging
to
the
Input
Jack
and
is
powered
OFF
by
unplugging.
*By
muting
circuit
system
no
Effect
works
for
about
5
seconds
after
the
unit
is
powered
on.
DIRECT
OUTPUT
JACK
When
a
plug
is
connected
to
this
jack,
direct
sound
is
output
from
this
jack,
and
delay
sound
is
output
from
the
Main
Output
Jack.
@
MODE
SELECTOR
SWITCH
The
Mode
Selector
Switch
has
4
modes,
S,M,
L,
and
Hold.
The
delay
time
changes
from
12.5ms
to
800ms
continueously
by
using
this
selector
and
the
Delay
Time
knob,
In
Hold
made,
the
Delay
Time
knob
controls
the
repetition
time
of
the
hold
sound
from
200ms
to
800ms.
The
Pedal
Switch
works
as
long
as
the
pedal
is
held
down.
and
delay
sounds)
is
output
from
this
jack.
(If
the
plug
is
not
connected
to
the
Direct
Output
Jack.)
FEEDBACK
LEVEL
This
knob
decides
how
many
times
the
delay
sound
is
to
be
repeated.
Turning
this
knob
clockwise
increases
the
number
of
repetition
of
delay
sound,
and
turning
this
knob
fully
coun-
terclockwise
produces
single
delay
sound.
THUMB
SCREW
When
the
battery
needs
replacing,
loosen
this
screw
to
open
the
pedal
and
replace
the
battery
with
a
new
one.
*The
screw
should
not
be
pulled
out,
but
if
needs
removing
for
some
reason,
do
not
lose
it.
—ePEDAL
SWITCH
The
Pedal
Switch
works
as
Delay
Effect
ON/OFF
or
Hold
ON/OFF
switch.
*Due
to
FET-switching
system,
audible
click
noise
problem
is
solved,
thus
the
DD-2
is
most
suitable
for
studio
recording.

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Boss DD-2 Specifications

General IconGeneral
Effect TypeDigital Delay
ControlsDelay Time, Feedback, Effect Level
BypassBuffered Bypass
Power Supply9V DC
Input Impedance1 MΩ
Output Impedance1 kΩ
Current Draw55 mA
Inputs1 x 1/4"
Outputs1 x 1/4"
Dimensions73 mm (W) x 129 mm (D) x 59 mm (H)

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