Boss DD-8 User Manual

Reference Manual

Panel Descriptions

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1 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.

*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.

2 CHECK indicator

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.

*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” (p. 21).

*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.

Panel Descriptions

3OUTPUT-A (MONO) jack, OUTPUT-B jack

The output jacks are used to connect the unit to an amplifier or another effects unit.

*The unit’s functions differ according to how it is connected. Refer to “Setting the Output Method” (p. 15).

4INPUT-A (MONO) jack, INPUT-B jack

These jacks accept input signals (coming from a guitar, some other musical instrument, or another effects unit).

*The unit’s functions differ 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 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.

5 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/off, 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).

6 Pedal switch

This is used for switching the effect on and off, and for switching between the different functions.

7 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

8

9

10

11

* 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.

		10	[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.
8	[E.LEVEL] knob	11	[MODE] knob
	This adjusts the volume of the effect sound. Turn the knob		This switches the delay effect.
	clockwise to increase the effect sound. When set at the three	12	[CARRYOVER] switch
	o’clock position, the effect is played at the same volume as the
	direct sound.		This selects whether the delay sound remains (ON) or does not
	* When the [E.LEVEL] knob is set to MAX while in REVERSE		remain (OFF) when you turn off the effect.
	mode, only the effect sound is output, with the effect sound
	at the same level as the input sound.
9	[FEEDBACK] knob		12
	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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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	Records your performance, and repeatedly plays it back.	40 sec. *1
		For more information, refer to “Using the LOOP (Overdubbing) Function” (p. 13).

*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).

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Connections

AC Adaptor (PSA series; sold separately)

Guitar Amplifier

Keyboard

Electric Guitar

Footswitch (FS-6 etc.)

Expression Pedal (Roland EV-5 etc.)

6	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. 15).

Connections

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 off 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	Connecting two FS-5U units		Connecting one FS-6 unit	Connecting one FS-7 unit
1/4” phone type,	Stereo 1/4” phone type,		Stereo 1/4” phone type,	Stereo 1/4” phone type,
1/4” phone type	1/4” phone type × 2		Stereo 1/4” phone type	Stereo 1/4” phone type
	RING	TIP
			A&B	A&B

FS-5U POLARITY switch

FS-6 MODE/POLARITY switch

FS-7 MODE/POLARITY switch

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