Boss DD-2 User Manual

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.

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)