For more information, refer to Reference Manual (PDF). 2. Use the
Owner’s Manual Operating the Unit 1. Turn on the effect. After you have finished making the connections, press the pedal switch to turn the effect on (the CHECK indicator lights red). * When in LOOP mode, the effect cannot be switched on or off. * You can obtain a variety of different delay effects by changing how the connections are made.
English
Owner's Manual
© 2019 Roland Corporation
**Before using this unit, carefully read the sections entitled: "USING THE UNIT SAFELY" and "IMPORTANT NOTES" (supplied on a separate sheet). After reading, keep the document(s) where it will be available for immediate reference.
Panel Descriptions
AC Adaptor (PSA series; sold separately)
3
1
2
11 8 9 10
4
Keyboard
For more information, refer to "Reference Manual" (PDF).
1. Access the following URL.
http://www.boss.info/manuals/
2. Choose "DD-8" as the product name.
Electric Guitar
5
Guitar Amplifier
6 7
Footswitch (FS-6 etc.)
No. Name
Explanation
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.
1 DC IN jack
* If there are batteries in the unit while an AC adaptor is being used, normal operation will continue should the line voltage be interrupted (power blackout or power cord disconnection).
* Use only the specified AC adaptor (PSA-series).
* If the AC adaptor is connected while power is on, the power supply is drawn from the AC adaptor.
This is a combination indicator, which indicates whether the effect is on or off, indicates the various functions, and functions as the battery check
indicator.
The indicator lights when an effect is ON.
2
CHECK indicator
* If this indicator goes dim or no longer lights while an effect 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."
* The CHECK indicator shows whether the effect is on or off, and indicates the different functions. It does not indicate whether the power to the device is on or not.
OUTPUT-A Connect an amplifier to this jack. 3 (MONO) jack, * The function differs depending on the mode or
OUTPUT-B jack connections.
These jacks accept input signals (coming from a guitar, some other musical instrument, or another effects unit).
* The function differs depending on the mode or
INPUT-A
connections.
4
(MONO) jack, Turning the power on/off INPUT-B jack * 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 off 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 effects
device.
This jack is for connecting a footswitch (FS-5U, FS-6, FS-7; sold separately) or an expression pedal (Roland
EV-5, BOSS FV-500H, FV-500L, EV-30; sold separately).
5
TEMPO/EXP jack
This jack lets you use a footswitch to set the tempo, control the loop, or turn TWIST on/off, or use an
expression pedal to control various parameters.
* Use only the specified expression pedal. By connecting any other expression pedals, you risk causing malfunction and/or damage to the unit.
12
Expression Pedal (Roland EV-5 etc.)
No. Name
Explanation
6
Pedal switch
This is used for switching the effect on and off, and for switching between the different functions.
When this screw is loosened, the pedal will open,
7 Thumbscrew allowing you to change the battery.
* For instructions on changing the battery, refer to "Changing the Battery."
8
[E.LEVEL] knob
This adjusts the volume of the effect sound. Turn the knob clockwise to increase the effect sound. When set at the three o'clock position, the effect 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 effect sound is output, with the effect sound at the same level as the input sound.
This adjusts the feedback level. The number of times
the delay sound is repeated increases as the knob is
turned to the right.
9
[FEEDBACK] knob
* This cannot be used in LOOP mode.
* In GLT mode, this adjusts the depth of the GLT effect.
* Oscillation may occur when the knob is set at certain positions.
This adjusts the delay time. Turning the knob clockwise lengthens the delay time.
10 [TIME] knob * This cannot be used in LOOP mode.
* The delay times that can be set vary according to the position of the [MODE] knob.
11 [MODE] knob This switches the delay effect.
12
[CARRYOVER] This selects whether the delay sound remains (ON) or
switch
does not remain (OFF) when you turn off the effect.
Connections
**To prevent malfunction and equipment failure, always turn down the volume, and turn off all the units before making any connections.
**Do not use connection cables that contain a built-in resistor. **Before turning the unit on/off, always be sure to turn the volume down. Even
with the volume turned down, you might hear some sound when switching the unit on/off. However, this is normal and does not indicate a malfunction.
**Once the connections have been completed, turn on power to your various devices in the order specified. By turning on devices in the wrong order, you risk causing malfunction and/or damage to speakers and other devices. · When powering up: Turn on the power to your guitar amp last.
· When powering down: Turn off the power to your guitar amp first. **When connecting a footswitch, you must turn off the power before connecting
or disconnecting cables. Failure to observe this precaution will cause malfunctions.
Operating the Unit
1. Turn on the effect.
After you have finished making the connections, press the pedal switch to turn the effect on (the CHECK indicator lights red). **When in LOOP mode, the effect cannot be switched on or off. **You can obtain a variety of different delay effects by changing how the connections are made. For more information, refer to "Reference Manual" (PDF).
2. Use the [MODE] knob to select the mode.
MODE knob Explanation
STANDARD ANALOG
TAPE
Clear digital delay.
Mild analog delay.
Sound with the modulation that is distinctive of a tape echo unit.
WARM REVERSE +RV SHIM MOD WARP
GLT
Mild digital delay. Delay played backward. Delay with reverb. Delay with pitch-shifted sound added. Digital delay with modulation. Creates a dreamlike sound. Creates a machine-gun-like sound. The effect is applied while you hold down the pedal switch.
LOOP
Records your performance, and repeatedly plays it back.
Delay time 20800 ms 20800 ms 20800 ms 20800 ms 3005000 ms 20800 ms 200800 ms 20800 ms 20800 ms
10400 ms
40 sec. *1
*1:T he 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.
3. Adjust the delay time with the [TIME] knob. 4. Adjust the amount of feedback with the [FEEDBACK] knob.
**Oscillation may occur with certain input sounds, or when the knob is set at certain positions.
5. Adjust the volume of the effect sound with the [E.LEVEL]
knob.
Using the LOOP (Overdubbing) Function
With the LOOP function, you can record up to 40 seconds of your performance, and then have that content played back repeatedly. You can also layer this as you perform something else, then record these together (overdub).
1. Select LOOP.
Set the MODE knob to LOOP (the CHECK indicator goes out).
2. Begin recording.
Recording starts when you press the pedal switch (the CHECK indicator flashes red).
**The maximum recording time is 20 seconds for stereo input or 40 seconds for mono input.
**Recording continues even if you release the pedal switch.
3. Stop recording0start playback.
When in the recording state, press the pedal switch to stop recording and transition to playback (the CHECK indicator is lit green).
4. Start overdubbing.
When in the playback state, press the pedal switch to start overdubbing (the CHECK indicator is lit orange).
5. Stop overdubbing0start playback.
When in the overdubbing state, press the pedal switch to stop overdubbing and transition to playback (the CHECK indicator is lit green).
6. Adjust the volume.
Use the [E.LEVEL] knob to adjust the volume of the playback sound.
7. Finish playback.
To stop playback, press the pedal switch twice. (If there is recorded data, the CHECK indicator blinks green.)
**Press the pedal switch two times in succession, keeping the interval between presses to one second or less.
Deleting Hold down the pedal switch for two seconds or longer to delete the recorded content.
Use of Battery
**If operating this unit on batteries, please use alkaline batteries.
**If you handle batteries improperly, you risk explosion and fluid leakage. Make sure that you carefully observe all of the items related to batteries that are listed in "USING THE UNIT SAFELY" and "IMPORTANT NOTES" (supplied on a separate sheet).
**When operating on battery power only, the unit's indicator will become dim when battery power gets too low. Replace the battery as soon as possible.
**Batteries should always be installed or replaced before connecting any other devices. This way, you can prevent malfunction and damage.
Changing the Battery
1. Hold down the pedal and
loosen the thumbscrew, then open the pedal upward.
**The pedal can be opened without detaching the thumbscrew completely.
2. Remove the old battery
Thumbscrew
Battery Snap Cord
Pedal Spring Base
Coil Spring Guide Bush Hole
from the battery housing,
Battery Snap
and remove the snap cord
connected to it.
Battery Housing 9 V Battery
3. Connect the snap cord to the new battery, and place the
battery inside the battery housing.
**Be sure to carefully observe the battery's polarity (+ versus -).
4. Slip the coil spring onto the spring base on the back of the
pedal, and then close the pedal.
**Carefully avoid getting the snap cord caught in the pedal, coil spring, and battery housing.
5. Insert the thumb screw into the guide bush hole and
tighten it securely.
Main Specifications
BOSS DD-8: Digital Delay
Nominal Input Level Input Impedance Nominal Output Level Output Impedance Recommended Load Impedance Power Supply
Current Draw
Dimensions Weight Accessories
Options
-20 dBu 1 M -20 dBu 1 k
10 k or greater
DC 9 V: Alkaline battery (9 V, 6LR61) AC adaptor (PSA series: sold separately) 65 mA (DC 9 V)
**Expected battery life under continuous use (These figures will vary depending on the actual conditions of use.) Alkaline: Approx. 5 hours
73 (W) x 129 (D) x 59 (H) mm 2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches 440 g / 1 lb (including battery) Owner's Manual, Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information"), Alkaline battery (9 V, 6LR61) AC adaptor: PSA series Footswitch: FS-5U, FS-6, FS-7 Expression pedal: FV-500H, FV-500L, EV-30, Roland EV-5
**0 dBu = 0.775 Vrms **This document explains the specifications of the product at the time that the
document was issued. For the latest information, refer to the Roland website.
SUPPLIER'S DECLARATION OF CONFORMITY
For the USA
Compliance Information Statement
Model Name : Type of Equipment :
Responsible Party : Address :
Telephone :
DD-8 Guitar E ects Roland Corporation U.S. 5100 S. Eastern Avenue Los Angeles, CA 90040-2938 (323) 890-3700
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