Boss DD-7 Digital Delay Owner's Manual
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Boss DD-7 Digital Delay Owner's Manual

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  • Page 1 Owner’s Manual AC & BATTERY POWERED...
  • Page 2 Thank you, and congratulations on your choice of the BOSS DD-7 Digital Delay. Before using this unit, carefully read the sections entitled: “USING THE UNIT SAFELY” and “IMPORTANT NOTES” (supplied on a separate sheet). These sections provide important in- formation concerning the proper operation of the unit.

  • Page 3: Main Features

    “sound on sound”—is possible in HOLD mode. ● Multiple delay modes include “MODULATE,” which adds a chorus effect to the delay sound, and “ANALOG,” which models the classic BOSS DM-2 analog delay pedal. ● Features two new stereo modes in addition to 2-in/2-out true stereo connections.
  • Page 4 Panel Description fig.01 1. AC Adaptor Jack Accepts connection of an AC Adaptor (PSA- series; optional). By using an AC Adaptor, you can play without being concerned about how much battery power you have left. * 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).
  • Page 5 Panel Description * If this indicator goes dim or no longer lights 4. INPUT-A (MONO) Jack while an effect is ON, or when the functions are INPUT-B Jack indicated, the battery is near exhaustion and These jacks accept input signals (coming should be replaced immediately.
  • Page 6 Panel Description You can make tempo settings using a foot- switch or manipulate various parameters us- ing an expression pedal. * Refer to “Setting the Tempo Using an External Footswitch” (p. 13), “Control Using an Expression Pedal” (p. 20). 6. Pedal Switch This is used for switching the effect on and off, and for switching between the different functions (p.
  • Page 7 Panel Description 9. F.BACK (Feedback) Knob 11. MODE Knob This adjusts the feedback level. The number This switches the delay effect. of times the delay sound is repeated increas- ● Ordinary Delay es as the knob is turned to the right. * This cannot be used in HOLD mode.
  • Page 8 ANALOG 20-800 ms each repetition of the repeat sound. REVERSE 300-3200 ms This tone is modeled on the BOSS “DM-2” Compact Delay. *1 In HOLD mode, the maximum recording time is 20 seconds for stereo input or 40 REVERSE: seconds for monaural input.
  • Page 9 Connections AC Adaptor (PSA-series: optional) Keyboard Electric Guitar Guitar Amplifier Footswitch (FS-5U) Expression Pedal (Roland EV-5) * You can obtain a variety of different delay effects by changing how the connections are made. For more information, refer to “Setting the Output Method”(p. 16).
  • Page 10 Connections * When running the unit on battery power, inserting a plug into the INPUT-A (MONO) or INPUT-B jack will automatically switch the unit on. * This unit is equipped with a protection circuit. A brief interval (a few seconds) after power up is required before the unit will operate normally.
  • Page 11 Operating the Unit * You can obtain a variety of different delay effects by changing how the connections are made. For more information, refer to “Setting the Output Method”(p. 16). 2. Select the mode Use the MODE knob to select the mode to be used.
  • Page 12 Using the Tempo Delay Tempo input allows you to set the delay time to * When an optional external footswitch (the FS- 5U) is connected to the TEMPO/EXP jack, you match the tempo of a song by repeatedly pressing won't be able to enter TEMPO mode by the pedal switch in time with the desired tempo.
  • Page 13 Using the Tempo Delay 2. Select the mode Setting the Tempo Using an Use the MODE knob to select the mode to External Footswitch be used. Connecting an optional footswitch (FS-5U) to the TEMPO/EXP jack lets you set the tempo * Inputting the tempo is not possible in HOLD mode.
  • Page 14 Using the Tempo Delay The delay sound produced is as shown in the figure. * The CHECK indicator flashes red in time with the interval with which you press the pedal. Rhythm Used in Pressing the Pedal MODE: 3200 ms MODE: 800 ms MODE: 200 ms MODE: 50 ms...
  • Page 15 Using the HOLD (Overdubbing) Function you recorded begins simultaneously With the HOLD function, you can record up to (the 40 seconds of your performance, and then CHECK indicator flashes green). have that content played back repeatedly. You 4. Overdubbing can also layer this as you perform something Press the pedal switch during playback to else, then record these together (overdub).
  • Page 16 Setting the Output Method With the DD-7, you can obtain a variety of different delay effects by changing how the connec- tions are made. Panning This produces panning delay with A input and A/B output. * The panning feature is not available in HOLD mode.
  • Page 17 Setting the Output Method Long Normal Delay Long Delay MODE This produces long delay with A input and B output. 3200ms 800-3200 ms 1600-6400 ms 800ms 200-800 ms 400-1600 ms 200ms 50-200 ms 100-400 ms 50ms 1-50 ms 2-100 ms HOLD 40 sec.
  • Page 18 Setting the Output Method Effect This produces effect output with B input and A output. DD-7 RETURN SEND INPUT Guitar Amplifier Guitar * The direct sound is not output from A, regardless of whether the effect is on or off. * Be sure to lower the output level of any device being connected.
  • Page 19 Setting the Mode for Stereo Delay 3. Select the stereo delay effect When using the DD-7 as a stereo delay, you can choose among three different operation Use the MODE knob to select the mode modes. Each mode provides a different type for stereo delay.
  • Page 20 Control Using an Expression Pedal 2. Make the settings for the parameters Connecting an expression pedal (Roland EV- 5; optional) to the TEMPO/EXP jack enables Turn the E.LEVEL, F.BACK, and D.TIME you to control the respective parameters of knobs to set the maximum values of the the E.LEVEL, F.BACK, and D.TIME knobs.
  • Page 21 Attaching the Included Sticker This device comes with a “mode sticker” and an “application sticker.” Apply these to the DD-7 as shown in the figure. Mode Sticker: This allows you to check the function of each mode. Application Sticker: This allows you to check the difference in functions according to the input and output connections.

  • Page 22: Changing The Battery

    Changing the Battery 1. Hold down the pedal and loosen the When the indicator goes dim or no longer thumbscrew, then open the pedal lights while the effect is on, it means that the upward. battery must be replaced. * The pedal can be opened without detaching the Replace the battery following the steps below.

  • Page 23: Troubleshooting

    Troubleshooting ● Is the battery low or dead? Power won’t come on / CHECK Replace with a new battery (p. 22). indicator doesn’t light: * The battery that was supplied with the unit is ● Is the specified adaptor (PSA-series; for temporary use, intended primarily for testing the unit’s operation.
  • Page 24 Troubleshooting ● Is the battery low or dead? No sound / Low volume: Replace with a new battery (p. 22). ● Is your instrument properly connected * The battery that was supplied with the unit is to the DD-7? for temporary use, intended primarily for testing Check the connection once more (p.
  • Page 25 Troubleshooting ● Could the level of the sound being Only direct sound is produced: input be excessive? ● Is the guitar connected to the INPUT B With some guitars, distortion may be pro- jack, and the amplifier connected to the duced.
  • Page 26 This produces gradual changes in the reverberant sound. Turning the E.LEVEL knob clockwise produces a When the D.TIME knob is set near the center posi- progressively deeper chorus effect. tion, what is produced is equivalent to the maxi- mum delay time obtained with the BOSS DM-2.
  • Page 27 Setting Samples Reverse Playback Delay Room Ambience Sound This delay simulates the sound that would be picked up This delay gives an effect somewhat similar to reverse by an ambience mic located on a stand within the room. playback. It’s a sound that’s just a little out of the ordinary. Trick Sound Doubling Employs repetitions of delayed sound to create an...
  • Page 28 Setting Memo...

  • Page 29: Specifications

    Specifications DD-7: Digital Delay Nominal Input Level ...... -20 dBu Input Impedance ......1 MΩ Nominal Output Level ....-20 dBu Output Impedance......1 kΩ Recommended Load Impedance .. 10 kΩ or greater Delay Time ........1 ms–6400 ms * Values may vary according to the mode and connections. Maximum Recording Time....
  • Page 30 Specifications Current Draw ........55 mA (DC 9 V) * Expected battery life under continuous use: Carbon: 1.5 hours, Alkaline: 6 hours These figures will vary depending on the actual conditions of use. Dimensions ........73 (W) x 129 (D) x 59 (H) mm 2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches Weight ..........
  • Page 31 For EU Countries This product complies with the requirements of EMC Directive 2004/108/EC. 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.
  • Page 32 G6027128R0 2RTC...

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