BOSSCO DD-2 User manual

UBOSS
[D(D—2
Digital Delay
INSTRUCTIONS
wg
AC & BATTERY
POWERED
® Piease read these instructions carefully for proper operating procedures for the BOSS DD-2.

CAUTIONS
@ When you do not use the unit for a long ® Be sure to keep the battery snapped by
period, remove the battery to prevent connector into the housing, when using
current leakage and leaking of sticky AC adaptor, too.
substance. *Even if AC Adaptor cord comes out
e@When battery voltage drops, effect during performance, operations imme-
becomes inferior or no sound is pro- diately changes to battery, causing no
duced. To prevent that, replace the trouble in continuing performance.
battery a little earlier. ®@ Power is switched on while a plug is put
into input jack. When-you do not use,
keep the plug off the jack.
AC ADAPTOR (OPTION)
@For AC operation, be sure to use the
BOSS AC Adaptor PSA-120, 220 or
240 depending on the voltage system
in your country, and never use one
Adaptor for two units simultaneously.
CAUTIONS FOR REPLACING AND HANDLING BATTERY
REPLACING BATTERY
USE ONE 9-VOLT BATTERY.
PEDAL(COVER)
THUMB SCREW
@Loosen the screw of pedal to open it
and take out battery from its housing.
@ Replace the battery by a new one and
put it into position.
@Set coil spring onto the SPRING BASE
on the back of the pedal and shut the
cover (pedal). Finally, insert the screw
into the pedal guide and tighten it.
At this time, be careful not to catch
the battery strap in the cover or coil
spring.
CONNECTOR STRAP
FEATURES
e The DD-2 is the first compact digital delay. The DD-2 allows
wider range of delay time (12.5ms to 800ms) and frequency
response (40Hz to 7kHz/ #3 dB) than conventional analog sys-
tem one.
®@ The Pedal! Switch has double duty of Effect ON/OFF and Hold
ON/OFF. Hold Effect is made attainable by its digital system.
e@2 Output system allows to select Mono or Stereo out.
NOTICE
@ Please be sure to use the AC Adaptor BOSS PSA-series depending on the voltage system
in your country. ACA-series can not be used, as the DD-2 consumes more courrent
(55mA 9V DC) than usual compact effect units.
@ The battery (one Dry Battery, 9V) will last for 30 minutes to 2 hours (manganese) or
5 to 10 hours (alkaline), depening on the conditions. The use of a BOSS PSA-Adaptor
is recommended for a long time performance.
© Avoid using this unit in extreme heat or humidity, or where it may be affected by dust.
SPECIFICATIONS
POWER QV DC Dry Battery, AC ADAPTOR (PSA-120, 220
or 240)
CURRENT DRAW 45mA ~ 65mA (9V DC)
CONTROLS EFFECT LEVEL, FEEDBACK, DELAY TIME,
MODE SELECTOR SWITCH
OTHERS NORMAL/EFFECT CHANGEOVER
(HOLD ON/OFF) FOOT SWITCH
JACKS INPUT, DIRECT OUTPUT, MAIN OUTPUT
AC ADAPTOR (PSA-120, 220 or 240)
SYSTEM ANALOG LOGALITHMIC COMPRESSION AND
12 BITS QUANTIZING SYSTEM
DELAY TIME 12.5ms(MIN) to 800ms(MAX)
S(SHORT) 50ms (12.5ms to 50ms)
M(MIDDLE) 200ms (50ms to 200ms)
L({LONG) 800ms (200ms to 800ms)
HOLD TIME 200ms(MIN) to 800ms(MAX) in Hold mode
DELAY SOUND:40Hz to 7kHz/ 74 dB
DIRECT SOUND: 10Hz to 60kH2/ +3 dB
— 95dBm(IHF-A)
FREQUENCY RESPONSE
RESIDUAL NOISE
INPUT IMPEDANCE IMQ
OUTPUT LOAD IMPEDANCE 10kQ or more
DIMENSIONS 70(W)x55(H)x125(D)mm/
2-3/4(W)x2-3/16(H)x5(D)in.
WEIGHT 450g/1 Ib.
*The specifications are subject to change without notice.

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.

OPERATION
(1)
DELAY
(ECHO)
EFFECT
(2)
HOLD
EFFECT
After connecting all the
cords required, set all
the knobs on the panel
as illustrated.
Adjust
the
repetition
time
by
setting
[1]
the
Feedback
knob
to
a
proper
posi-
‘
tion.
*If
this
knob
is
set
too
high,
oscilla-
tion may occur.
After connecting all the
cords required, set the all
knobs on the panel as illus-
trated.
* Feedback Effect does not
works with Hold effect
ON.
Adjust
the
output
level
of
delay
sound,
*Turning
the
knob
to
MAX
makes
the
Jevel
of
delay
sound
equivalent
to
the
direct
sound.
*When this knob is set to MIN in
When the Check Indicator lights up by
pressing the Pedal Switch down, Delay
Effect is ON, and if goes out, Delay
When the Check Indicator lights up by
pressing the Pedal Switch down, Hold is
Effect
is
OFF.
stereo
mode,
the
delay
sound
is
not
ON.
If
it
goes
out
by
pressing
the
Pedal
*By
muting
circuit
system
no
effect
output
through
the
Main
Output.
Switch
down,
Hold
is
OFF
(Normal).
works
for
about
5
seconds
after
the
*When
you
press
the
Peda!
Switch
down
unit is powered on.
after playing some phrases, the last
*This indicator serves as Battery Check
sound
played
will
take
on
the
Hold
Indicator as well. The battery should be effect.
replaced
with
a
new
one
when
the
indi-
*The
Pedal
Switch
works
as
long
as
the
cator
lights
only
dimly
or
fails
to
light
up,
pedal
is
held
down.
na
Select the range of delay time with the Mode
Selector Switch, and then adjust the Delay
Time by rotating the Delay Time knob.
*High-frequency
input
signal
can
cause
beat
I
J
notes,
making
Delay
sound
muddy.
heard,
_tts|
pitch
changes;
.
rotating
it
Slight
counterclockwise
rotation
of
D.
TIME
clockwise
lowers
the
pitch
and
counter-
will
decrease
beats.
clockwise
raises
it.
The delay time knob adjust the Hold -
Time (200ms to 800ms). When you
rotate this knob while the hold sound is
oy
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OUBOSS
Products of Roland Printed in Japan Apr. '84 E-3

[(=Roland*
10268
WINN
UBOSS