Boss DD-8 User Manual

Reference Manual

Panel Descriptions

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DC IN jack
Accepts connection of an AC Adaptor (PSA series; sold separately). By using an AC Adaptor, you can play without being concerned about how much battery power you have left.
being used, normal operation will continue should the line voltage be interrupted (power blackout or power cord disconnection).
* Use only the specied AC adaptor (PSA-series).
* If the AC adaptor is connected while power is on, the power
supply is drawn from the AC adaptor.
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CHECK indicator
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This is a combination indicator, which indicates whether the eect is on or o, indicates the various functions, and functions as the battery check indicator.
The indicator lights when an eect is ON.
* If this indicator goes dim or no longer lights while an eect
is ON, or when the functions are indicated, the battery is near exhaustion and should be replaced immediately. For instructions on changing the batteries, refer to “Changing the Battery” (p. 21).
* The CHECK indicator shows whether the eect is on or o,
and indicates the dierent functions. It does not indicate whether the power to the device is on or not.
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OUTPUT-A (MONO) jack, OUTPUT-B jack
The output jacks are used to connect the unit to an amplier or another eects unit.
* The unit’s functions dier according to how it is connected.
Refer to “Setting the Output Method” (p. 15).
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INPUT-A (MONO) jack, INPUT-B jack
These jacks accept input signals (coming from a guitar, some other musical instrument, or another eects unit).
* The unit’s functions dier according to how it is connected.
Refer to “Setting the Output Method” (p. 15).
* The INPUT-A (MONO) and INPUT-B jacks double as power
switches. Power to the unit is turned on when you plug into the INPUT-A (MONO) or INPUT-B jack; the power is turned o when the cable is unplugged. Be sure to disconnect any cord plugged into the INPUT-A (MONO) or INPUT-B jack when not using this eects device.
Panel Descriptions
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TEMPO/EXP jack
This jack is for connecting a footswitch (FS-5U, FS-6, FS-7; sold separately) or an expression pedal (Roland EV-5, FV-500H, FV-500L, EV-30; sold separately).
This jack lets you use a footswitch to set the tempo, control the loop, or turn TWIST on/o, or use an expression pedal to control various parameters.
* For details, refer to “Setting the Tempo Using a Footswitch”
(p. 12), “Using a footswitch to control the loop function” (p. 14), “Using the TWIST Function” (p. 14), or “Control Using an Expression Pedal” (p. 19).
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Pedal switch
This is used for switching the eect on and o, and for switching between the dierent functions.
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Thumbscrew
When this screw is loosened, the pedal will open, allowing you to change the battery.
* For instructions on changing the battery, refer to “Changing
the Battery” (p. 21).
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Panel Descriptions
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[E.LEVEL] knob
This adjusts the volume of the eect sound. Turn the knob clockwise to increase the eect sound. When set at the three o’clock position, the eect is played at the same volume as the direct sound.
* When the [E.LEVEL] knob is set to MAX while in REVERSE
mode, only the eect sound is output, with the eect sound at the same level as the input sound.
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[FEEDBACK] knob
This adjusts the feedback level. The number of times the delay sound is repeated increases as the knob is turned to the right.
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* This cannot be used in LOOP mode.
* In GLT mode, this adjusts the depth of the GLT eect.
* Oscillation may occur when the knob is set at certain
positions.
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[TIME] knob
This adjusts the delay time. Turning the knob clockwise lengthens the delay time.
* This cannot be used in LOOP mode.
* The delay times that can be set vary according to the
position of the [MODE] knob.
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[MODE] knob
This switches the delay eect.
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[CARRYOVER] switch
This selects whether the delay sound remains (ON) or does not remain (OFF) when you turn o the eect.
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Panel Descriptions
Characteristics of each mode
MODE knob Explanation Delay time
STANDARD Clear digital delay. 20–800 ms
ANALOG Mild analog delay. 20–800 ms
TAPE Sound with the modulation that is distinctive of a tape echo unit. 20–800 ms
WARM Mild digital delay. 20–800 ms
REVERSE Delay played backward. 300–5000 ms
+RV Delay with reverb. 20–800 ms
SHIM Delay with pitch-shifted sound added. 200–800 ms
MOD Digital delay with modulation. 20–800 ms
WARP Creates a dreamlike sound. 20–800 ms
GLT Creates a machine-gun-like sound. 10–400 ms
LOOP
*1: In LOOP mode, the maximum recording time is 20 seconds for stereo input or 40 seconds for mono input.
* If you specify the long delay output setting, the delay time is doubled. For details, refer to “Setting the Output Method” (p. 15).
Records your performance, and repeatedly plays it back.
For more information, refer to “Using the LOOP (Overdubbing) Function” (p. 13).
sec. *1
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Connections

AC Adaptor (PSA series; sold separately)
Keyboard
Electric Guitar
Guitar Amplier
You can obtain a variety of dierent delay eects by changing how the connections are made.
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For more information, refer to “Setting the Output Method” (p. 15).
Footswitch
(FS-6 etc.)
Expression Pedal
(Roland EV-5 etc.)
Footswitch connections
Refer to the diagrams for details on the appropriate cables to use and the setting of the polarity switch.
* When connecting a footswitch, you must turn o the power before connecting or disconnecting cables. Failure to observe this
precaution will cause malfunctions.
Connect to TEMPO/EXP jack Connect to TEMPO/EXP jack Connect to TEMPO/EXP jack Connect to TEMPO/EXP jack
Connecting one FS-5U unit
1/4” phone type 1/4” phone type
,
Connecting two FS-5U units
Stereo 1/4” phone type 1/4” phone type × 2
RING TIP
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Connecting one FS-6 unit
Stereo 1/4” phone type Stereo 1/4” phone type
,
A&B
Connecting one FS-7 unit
Stereo 1/4” phone type Stereo 1/4” phone type
A&B
,
Connections
FS-5U POLARITY switch
FS-6 MODE/POLARITY switch FS-7 MODE/POLARITY switch
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