Boss BD-2 Bedienungsanleitung

Boss BD-2
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BedienungsanleitungBoss BD-2

INPUT jack

This jack accepts input signals (coming from a guitar, some other musical
instrument, or another eects unit).
AC Adaptor
(PSA series; sold separately)
Electric Guitar

LEVEL knob

This adjusts the volume of the eect sound.
* When this knob is turned counterclockwise, no sound will be heard.
7 The BD-2 is the overdrive that has been specically designed for crunch distortion.
7 It can faithfully express the tone change caused by moving the knobs on the guitar.
7 It can create distortion that can faithfully reproduce the picking nuance of the player.
7 It can create wide varieties of distortions from crunch to hard distortion, by adjusting the Gain Knob.
7 Even if the Gain Knob is raised, a clean and natural sound can be produced by turning the volume of the guitar.
7 A natural-sounding overdrive continues to be produced without any loss in its quality, even if you turn down the volume on your guitar.


The output jack is used to connect the unit to
ampliers or other devices.
Guitar Amplier

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.
* We recommend that you keep batteries installed in the unit even though you’ll be powering it with
the AC adaptor. That way, you’ll be able to continue a performance even if the cord of the AC adaptor
gets accidentally disconnected from the unit.
* 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.

CHECK indicator

This indicator shows whether an eect is ON/OFF, and doubles 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, the battery is near
exhaustion and should be replaced immediately.

TONE knob

This adjusts the tone of sound. Rotating it clockwise will create sharp sound with
emphasized treble, while turning it counterclockwise will create soft sound with
cut treble.

Pedal Switch

This switch turns the eects ON/OFF.

Precautions When Connecting

To prevent malfunction and equipment failure, always turn
down the volume, and turn o all the units before making any
Once everything is properly connected, be sure to follow the
procedure below to turn on their power. If you turn on equipment
in the wrong order, you risk causing malfunction or equipment
When powering up: Turn on the power to your guitar amp last.
When powering down: Turn o the power to your guitar amp rst.
Before turning the unit on/o, always be sure to turn the volume
down. Even with the volume turned down, you might hear some
sound when switching the unit on/o. However, this is normal and
does not indicate a malfunction.

Use of Battery

* A battery was installed in the unit before it left the factory. The
life of this battery may be limited, however, since its primary
purpose was to enable testing.
* If you handle batteries improperly, you risk explosion and uid
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.

Main Specications

Nominal Input Level -20 dBu
Input Impedance 1 MΩ
Nominal Output
-20 dBu
Output Impedance 1 kΩ
Recommended Load
10 kΩ or greater
Power Supply Carbon-zinc battery (9 V, 6F22) or
Alkaline battery (9 V, 6LR61)
AC adaptor (PSA series: sold separately)
Current Draw 20 mA
* Expected battery life under continuous use:
Carbon: 24.5 hours
Alkaline: 44 hours
These gures 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 360 g / 13 oz (including battery)
NOTES, and “Information”)
Carbon-zinc battery (9 V, 6F22)
(sold separately)
AC adaptor (PSA-series)
* 0 dBu = 0.775 Vrms
* This document explains the specications of the product at the
time that the document was issued. For the latest information,
refer to the Roland website.

GAIN knob

This adjusts the gain of the blues driver. Rotating the knob clockwise will
increase the gain creating harder distortion.
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.

Main Features

Panel Descriptions

Owner’s Manual

* The INPUT jack doubles as the power switch.
Power to the unit is turned on when you plug
into the INPUT jack; the power is turned o when
the cable is unplugged. To prevent unnecessary
battery consumption, be sure to disconnect the
plug from the INPUT jack when not using the
eects unit.


When this screw is loosened, the pedal will open, allowing you to change the
* For instructions on changing the battery, refer to “Changing the Battery.
© 2016 Roland Corporation

Operating the Unit

1. When you have made the necessary connections, set

the knobs as shown in the illustration.

2. Depress the pedal switch to turn the eect on. (Make

sure that the CHECK Indicator lights.)

3. Adjust the gain of the Dry or Overdrive sound using

the GAIN knob.

4. Adjust the tone using the TONE knob.

5. Adjust the output level using the LEVEL knob.

Changing the Battery

Battery Housing
Spring Base
Coil Spring
Guide Bush
Battery Snap
9 V Battery

1. Hold down the pedal and loosen the thumbscrew, then

open the pedal upward.

* The pedal can be opened without detaching the thumbscrew

2. Remove the old battery from the battery housing, and

remove the snap cord connected to it.

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. Finally, insert the thumbscrew into the guide bush

hole and fasten it securely.

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