Boss DD-2 User Manual

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.

Boss DD-2 Specifications

General

Effect Type	Digital Delay
Controls	Delay Time, Feedback, Effect Level
Bypass	Buffered Bypass
Power Supply	9V DC
Input Impedance	1 MΩ
Output Impedance	1 kΩ
Current Draw	55 mA
Inputs	1 x 1/4"
Outputs	1 x 1/4"
Dimensions	73 mm (W) x 129 mm (D) x 59 mm (H)