Boss Giga Delay DD20 Pedal
Installing Batteries
Batteries are supplied with the unit. The life of these batteries may be limited, however, since their primary purpose was to enable testing. Insert the included batteries as shown in the figure, being careful to orient the batteries correctly.
Note:
- When turning the unit upside-down, get a bunch of newspapers or magazines, and place them under the four corners or at both ends to prevent damage to the buttons and controls. Also, you should try to orient the unit so that no buttons or controls get damaged.
- When turning the unit upside-down, handle with care to avoid dropping it, or allowing it to fall or tip over.
- Make sure the “+” and “–” ends of the batteries are oriented correctly.
- When the batteries run down, the POWER indicator gets dim. If this happens, replace with new batteries.
- When replacing the batteries, use six AA-type batteries.
- Avoid using new batteries together with used ones. In addition, avoid mixing different types of batteries. Doing so can result in fluid leakage.
- Battery life can vary depending on battery type.
Continuous usage time under battery power is about 7 hours with alkaline batteries and about 2 hours with carbon batteries. (This may vary according to usage conditions.)
Making the Connections
NOTE
- The use of an AC adaptor is recommended as the unit’s power consumption is relatively high. Should you prefer to use batteries, please use the alkaline type.
- Noise may be produced if wireless communications devices, such as cell phones, are operated in the vicinity of this unit. Such noise could occur when receiving or initiating a call, or while conversing. Should you experience such problems, you should relocate such wireless devices so they are at a greater distance from this unit, or switch them off.
- Use a cable from Roland to make the connection. If using some other make of connection cable, please note the following precautions.
- Some connection cables contain resistors. Do not use cables that incorporate resistors for connecting to this unit. The use of such cables can cause the sound level to be extremely low or impossible to hear. For information on cable specifications, contact the manufacturer of the cable.
- When the unit is running on battery power, the power comes on when you insert the connector plug into the INPUT A (MONO) jack.
- To prevent malfunction and/or damage to speakers or other devices, always turn down the volume and turn off the power on all devices before making any connections.
- 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).
- Once the connections have been completed, turn on the 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.
- Always make sure to have the volume level turned down before switching on the power. Even with the volume down, you may still hear some sound when the power is switched on, but this is normal and does not indicate a malfunction.
- When operating on battery power only, the unit’s indicator and backlit LCD will become dim when battery power gets too low. Replace the battery as soon as possible.
- When moved from one location to another where the temperature and/or humidity are very different, water droplets (condensation) may form inside the unit. Damage or malfunction may result if you attempt to use the unit in this condition. Therefore, before using the unit, you must allow it to stand for several hours, until the condensation has completely evaporated.
Mono Connection
Stereo Connection
Connecting the Stereo Output and the Effects Processor
Connecting to SEND/RETURN
With Guitar and Bass Amps
- Match the DD-20’s level setting and the output level from the guitar or bass amp’s SEND output. If there is any distortion in the sound, reduce the level on the connected device.
- If the guitar or bass amp’s SEND/RETURN level is +4 dBu, switch the setting to “+4 dB” as described in “Setting the Output Mode” (p. 30).
Mono Send/Mono Return
Mono Send/Stereo Return
Connecting to an MTR or Mixer
Mono Send/Mono Return
When using the DD-20 while connected to the SEND/RETURN of a mixer or multitrack recorder, follow the instructions in “Setting the Output Mode” (p. 30) to set “A: Direct Sound + B: Effect Sound” so that only the delay signal is output from the DD-20; the sound is output from the OUTPUT B jack.
Operation
“Effect On” for the pedal setting and “MANUAL” is selected when the power is turned on.
ON/OFF Pedal Operation
- If the output is set to “ A: DIR B: EFX,” nothing is output from the OUTPUT B jack when the effects are off.
Only the effect sound is output from the OUTPUT B jack when the effects are on. This is set at the factory to “A: DIR B: EFX.”
“Setting the Output Mode” (p. 30) - The pedal functions differently according to the Pedal mode settings.
“How to Use Each Mode” (p. 21) - The DD-20 features a “seamless switching function” whereby the reverberation sound decays gradually, even after the effects are switched off.
Panel Operation
To follow along with the instructions given here, you should start by having effects switched ON (press the ON/OFF pedal and confirm that the ON/ OFF indicator has lit up), and press the SELECT button to switch to MANUAL (the MANUAL indicator lights up in green).
Also set the knobs as shown in the illustration.
- Rotate the MODE knob to select an appropriate delay effect from the eleven available types.
- Adjust the delay time by rotating the DELAY TIME knob.
- Pressing the knob down as you turn it cause the delay time to change more rapidly. Furthermore, the rate at which it changes also varies according to how the knob is turned. More detail, refer to “Operating the DELAY TIME Knob” (p. 17).
- Rotate the F. BACK knob to adjust the amount of the feedback.
- Adjust the tone of the effect sound with the TONE knobs.
- The frequency response is flat when the knob is at the center position. You can usually leave the knob at the center position.
- Adjust the volume of the effect sound with the E.LEVEL knob.
Saving the Current Delay Time as the “Manual” Setting
If you press the DELAY TIME knob after adjusting the delay time, the current delay time is then stored to the DD-20 as the “Manual” setting. This setting is preserved even while the power is turned off, and is selected as the default delay time setting (display) when the power is turned on again.
Storing Settings (Write Operation)
Storing the “MANUAL” Sound in Memory
Note: Do not switch off the power while a write operation is in progress.
* You cannot carry out the Write operation when the MODE knob is turned to “SOS.”
- Create the sound you want using knobs.
- Press the WRITE button.
The MEMORY indicator and the indicator for the currently selected memory flash, and the DD-20 are put into write-standby. - Press the SELECT button to select the memory (number) to which you want to store the sound.
The indicator for the selected memory number flashes. - Press the WRITE button.
The write operation is completed when the indicator for the write-destination memory begins to flash more rapidly.* To cancel the write operation, then before you press the WRITE button, rotate the knob or operate the MANUAL/TAP pedal.
Note: Please be aware that all data contained in the unit’s memory may be lost when the unit is sent for repairs. Important data should always be written down on paper, “Setting Memo” (p. 40). During repairs, due care is taken to avoid the loss of data. However, in certain cases (such as when circuitry related to memory itself is out of order), we regret that it may not be possible to restore the data, and Roland assumes no liability concerning such loss of data.
Note: Please be aware that the contents of memory can be irretrievably lost as a result of a malfunction or the improper operation of the unit. To protect yourself against the risk of losing important data, we recommend that you write down important data you have stored in the unit’s memory on “Setting Memo” (p. 40).
Note: Unfortunately, it may be impossible to restore the contents of data that was stored in the unit’s memory once it has been lost. Roland Corporation assumes no liability concerning such loss of data.
Changing and Storing the “MEMORY” Sound
Note: Do not switch off the power while a write operation is in progress.
- Press the MANUAL/TAP pedal or the SELECT button to change to the “MEMORY” sound.
- Operate the knobs to change the sound.
* To avoid sudden inadvertent changes in sound, the E.LEVEL, TONE, and F. BACK knobs are designed so that the setting does not change unless the knob is first turned as far as the stored setting value. Once the position of the knob matches the setting value stored in memory, the sound starts to change.
When a setting changes, the MEMORY indicator flashes automatically. - Press the WRITE button.
The MEMORY indicator and the indicator for the currently selected memory number start to flash, and the DD-20 is put into write standby. - Press the SELECT button to select the memory (number) to which you want to store the sound.
The indicator for the selected memory number flashes. - Press the WRITE button.
The write operation is completed when the indicator for the write-destination memory begins to flash more rapidly.* If the knob or the MANUAL/TAP pedal position is changed before the WRITE button is pressed, the write operation is cancelled, and the DD-20 is returned to the status in effect in Step 2.
MEMORY/TAP Pedal Operation (Switching Memories)
The Pedal mode (1–3) changes the function of the pedals. Use the most appropriate setting for your particular application.
- The following operations are performed while the MEMORY indicator is lit.
- The DD-20 features a “seamless switching function.”
When you switch memories using this function, the reverberation from the memory before switching continues to sound, for more natural-sounding transitions. - At the factory settings, Pedal mode is set to “1.”
When changing the Pedal mode settings, refer to “Changing the Pedal Mode Settings” (p. 29).
Pedal mode: 1
Pressing the MEMORY/TAP pedal cycles you through a series of selections, in this order: MANUAL → MEMORY 1 → MEMORY 2 → MEMORY 3 → MEMORY 4 → MANUAL. This convenient feature makes it easier to switch memories when multiple memories are used.
Pedal mode: 2
Pressing the MEMORY/TAP pedal switches you between MANUAL and the selected memory (shown by the lit indicator). This is a convenient way to toggle between two sound settings.
Pedal mode: 3
Pressing the MEMORY/TAP pedal toggles you between MANUAL and the selected memory (shown by the lit indicator).
You can also select among Memories 1–4 by pressing the MEMORY/TAP pedal and Othe N/OFF pedal simultaneously. This is convenient when you want to use your foot to rapidly switch memories to call up a desired sound.
* You cannot carry out this operation when the MODE knob is turned to “SOS.”
MEMORY/TAP Pedal Operation (Tap Input)
When the MODE knob is turned to any setting besides “SOS,” then pressing and holding down the pedal for at least two seconds causes the TAP indicator to light up and switches the MEMORY/TAP pedal function to Tap Input.
You can easily set the delay time to match the tempo of the song being played by pressing the pedal in time with the song’s tempo (Tap Input). The TEMPO indicator flashes in time with the tempo being input with Tap Input.
* You can use the TEMPO button to change the delay time set with Tap Input. Refer to “How to Use the Tempo Function” (p. 26).
Troubleshooting
The power doesn’t come on.
Is the guitar connected correctly to the INPUT A (MONO) jack?
→ Check the connections again (p. 4–p 7).
* When running off batteries, the unit won’t switch on unless there’s something plugged into the INPUT jack. This helps conserve the batteries.
Is the plug connected to the INPUT B jack?
→ When using battery power, connect the plug to the INPUT A (MONO) jack.
Have the batteries run down?
→ Replace with fresh batteries (p. 3).
Is the specified AC adaptor (PSA-series sold separately) connected correctly?
→ Check the connections again (p. 4–p.7).
There is no sound.
Is the other equipment connected correctly?
→ Check the connections again (p. 4–p. ).
Is the volume turned down on the connected guitar/bass amp, effects processor, or other device?
→ Check the settings on the connected equipment (p. 4–p 7.
Is the Output Mode set correctly?
→ Set the Output Mode to match the connected equipment (p. 30).
Is the Output Mode set to A: DIR / B: EFX?
→ No sound is output from the OUTPUT B jack when the ON/ OFF pedal is set to OFF. Set the Output Mode to Stereo output (out 1 or out 3) (p. 30).
Is the effect level (E. LEVEL knob) set to minimum?
→ Operate the E.LEVEL knob to adjust the effect level (p. 16).
Sound is distorted.
Are the TONE knob positioned correctly?
→ Sounds may become distorted with the knob at certain settings. Turn down this knob, or turn down the E.LEVEL knob to appropriate level. If, despite this measure, the sound is still distorted, lower the output level of the device connected to the INPUT jacks, or set the Output Mode to +4 dB (p. 30).
Pressing the MEMORY/TAP pedal does not call up the intended memory.
Is the proper Pedal mode set for your current application?
→ The MEMORY/TAP pedal (or the MEMORY/ TAP pedal when pressed simultaneously with the ON/OFF pedal) functions differently according to the Pedal mode settings. Use the most appropriate setting for your particular application (p. 29).
Is the MEMORY/TAP pedal set to the TAP function?
→ If the MEMORY/TAP pedal is set to TAP (MEMORY/TAP pedal has been pressed for two seconds), the pedal functions as a Tap Input pedal. To switch memories, either change the pedal to the MEMORY switching function by holding down the MEMORY/TAP pedal for two seconds, or use an external pedal (p. 14–p 15).
The volume level of the instrument connected to the INPUT jack is too low.
Could you be using a connection cable that contains a resistor?
→ Use a connection cable that does not contain a resistor.
Pressing the ON/OFF pedal does not switch on or off as intended.
Is the Pedal mode set to SOS, WARP, or TWIST?
→ The pedal functions differently according to the Pedal mode settings. For more details, refer to the description of each mode. SOS (p. 21), WARP (p. 22), TWIST (p. 22)
Cannot be saved to the memories
The delay time cannot be saved in SOS or MANUAL.
→ SOS cannot be saved to memory. Delay time settings in MANUAL are saved by pressing the DELAY TIME knob or switching memories before the power is turned off.
Information not displayed
External pedal not indicated.
→ The external pedal is not indicated unless it is connected (p. 31).
Output mode not indicated.
→ A: DIR/B: EFX is not indicated when input is in stereo.
For more detailed information, refer to “Setting the Output Mode” (p. 30).
The set delay time is different than the time displayed.
→ Manual delay time settings change unless the Write procedure is carried out. The settings are saved when you press the DELAY TIME knob or switch memories.
The delay time does not reach the maximum of 23 seconds
→ The range of the delay time setting may vary according to the mode and the tempo setting. For more detailed information, refer to “MODE List” (p. 18) and “How to Use the Tempo Function” (p. 26).
Specifications
DD-20: DIGITAL DELAY
Nominal Input Level
- -20 dBu (GUITAR/BASS)
- +4 dBu (AMPLIFIER SEND/RETURN)
Input Impedance
- 1 MΩ
Nominal Output Level
- -20 dBu (GUITAR/BASS)
- +4 dBu (AMPLIFIER SEND/RETURN)
Output Impedance
- 1 kΩ (OUTPUT A (MONO), B)
- 33 Ω (PHONES)
Recommended Load Impedance
- 10 kΩ
Residual Noise Level
- -93 dBu or less (IHF-A typ.)
* E. LEVEL/F. BACK/TONE knobs are set to the center position
Display
- Custom LCD (with backlit)
Controls
- ON/OFF Pedal
- MEMORY/TAP Pedal
- DELAY TIME Knob
- E.LEVEL Knob
- F. BACK Knob
- TONE Knob
- MODE Knob
- TAP Button
- TEMPO Button
- MEMORY WRITE Button
- MEMORY SELECT Button
Indicators
- POWER Indicator (serves also as battery check indicator)
- ON/OFF Indicator
- MEMORY Indicator
- TAP Indicator
- MANUAL Indicator
- MEMORY Number Indicator 1–4
- TEMPO Indicator
Connectors
- INPUT A (MONO) Jack (1/4 inch phone type)
- INPUT B Jack (1/4 inch phone type)
- PHONES Jack (stereo 1/4 inch phone type)
- CTL PEDAL Jack (1/4 inch phone type)
- OUTPUT A (MONO) Jack (1/4 inch phone type)
- OUTPUT B Jack (1/4 inch phone type)
- AC Adaptor Jack
Power Supply
- Dry battery (R6/LR6 (AA) type) x 6: DC 9V
- AC Adaptor (DC 9V)
Current Draw
- 200 mA (9 V max.)
* Expected battery life under continuous use:
Carbon: 2 hours
Alkaline: 7 hours
These figures will vary depending on the actual conditions of use.
Dimensions
- 173 (W) x 158 (D) x 57 (H) mm
- 6-13/16 (W) x 6-1/4 (D) x 2-1/4 (H) inches
Weight
- 1.2 kg / 2 lbs 11 oz (including batteries)
Accessories
- Owner’s Manual
- Leaflet (“USING THE UNIT SAFELY,” “IMPORTANT NOTES,” and “Information”)
- Dry battery (LR6 (AA) type) x 6
* We recommend that alkaline batteries be used when replacing the batteries.
Options
- AC Adaptor (PSA-series)
* 0 dBu = 0.775 Vrms
* In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice.
For EU Countries
This product complies with the requirements of European Directive 89/336/EEC.
For the USA
FEDERAL COMMUNICATIONS COMMISSION
RADIO FREQUENCY INTERFERENCE STATEMENT
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used according to the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference, and
- This device must accept any interference received, including interference that may cause undesired operation.
Unauthorized changes or modifications to this system can void the user’s authority to operate this equipment. This equipment requires Sheila to interface it to meet the FCC Class B Limit.
For Canada
NOTICE
This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
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