Boss JB-2 Users Manual

Owner’s Manual

* 5 1 0 0 0 5 9 0 4 4 - 0 1 *

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.

English

Main Features

The JB-2 is a distortion pedal cooperatively developed by JHS PEDALS and BOSS.

7 It is equipped with two completely independent distortion eects designed respectively by JHS PEDALS and BOSS. 7 By switching modes, you can use the JHS PEDALS and BOSS sounds individually, or use them together in series (with your choice of connection order) or parallel to create a wide variety of rock sounds. 7 If you connect a footswitch to the REMOTE jack, you can use it in conjunction with the pedal switch for additional options, such as switching between distortions or turning the eect on/o.

Panel Descriptions

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.

AC Adaptor

(PSA series; sold separately)

LEVEL knobs

These adjust the volume of the eect sound. Clockwise rotation raises the volume and counterclockwise rotation decreases.

TONE knobs

These adjust the tone of the eect sound. As you rotate the knob clockwise, higher frequencies are emphasized, and counterclockwise cuts them.

OUTPUT jack

Connect an amplier to this jack.

Guitar Amplier

Pedal switch

This switch turns the eect on/o or switches between the two types of distortion.

* The operation that occurs when you press the pedal depends on the

mode. For details, refer to “Operation at a Glance.”

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. The indicator also shows which eect is active: JHS

PEDALS and/or BOSS.

Indicator color Eect type Red JHS PEDALS Blue BOSS Purple Both JHS PEDALS and BOSS

* 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.

* The CHECK indicator shows whether the eect is on or o, and indicates the dierent

functions. It does not indicate whether the power to the device is on or not.

MODE knob

This switch switches between modes (JHS, BOSS, JHS/BOSS, JAB, BAJ, PARALLEL).

For details, refer to “Mode List.”

DRIVE knobs

These adjust the depth of the distortion eect. Rotating the knob clockwise deepens the distortion creating powerful distortion eect.

Rotating the knob counterclockwise makes lighter distortion.

INPUT jack

This jack accepts input signals (coming from a guitar, some other electric or electronic musical instrument, or another eects unit).

* The INPUT jack also serves as the power

Electric Guitar

switch. Power is turned on whenever a plug is inserted into the INPUT jack, and is turned o when the plug is disconnected. When not using the unit, you should disconnect any cable connected to the INPUT jack.

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.”

IMPORTANT NOTES

* Some settings might cause the JB-2 to oscillate or might result in

increased noise, but this is not a malfunction.

* To prevent malfunction and equipment failure, always turn

down the volume, and turn o all the units before making any connections.

* 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 failure.

When powering up: Turn on the power to your guitar amp

When powering down: Turn o the power to your guitar amp

last.

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.

* If operating this unit on batteries, please use alkaline or carbon

battery.

* 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.

* 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).

Changing the Battery

1. Hold down

Thumbscrew

the pedal and loosen the thumbscrew,

Battery Snap Cord

then open the pedal upward.

* The pedal can be

opened without detaching the thumbscrew completely.

Battery Snap

9 V Battery

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.

Pedal

Spring Base

Coil Spring

Guide Bush Hole

Battery Housing

MODE List

Use the MODE knob to select the eect you want.

MODE Explanation JHS A high-gain distortion with a design based on the

BOSS An overdrive with a design based on the BOSS “BD-2”

JHS/BOSS Switch between the “JHS” and “BOSS” eects. JAB (*1) Series connection in the order of “JHS” 0 “BOSS.” BAJ (*1) Series connection in the order of “BOSS” 0 “JHS.” PARALLEL (*1) “JHS” and “BOSS” circuits connected in parallel.

(*1) Both JHS PEDALS and BOSS are on.

“Angry Charlie” made by JHS PEDALS. It’s a classic sound with a distinctively rich low-frequency range and thick mids.

Blues Driver. It’s noted for a broad range of expression that responds to your guitar volume and picking dynamics. With a broad range of gain variation, you can create a wide variety of sounds from crunch to hard rock.

Operation at a Glance

This table shows the operations of the pedal switch and of a footswitch connected to the REMOTE jack.

MODE Pedal switch Footswitch JHS BOSS JHS/BOSS Switch between JHS/BOSS Eect ON/OFF JAB BAJ PARALLEL

Intellectual Property Right

• Roland, BOSS, BLUES DRIVER are either registered trademarks or

CMSIS-RTOS RTX Version 4.70.1

Redistribution and use in source and binary forms, with or without modication, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice,

• Redistributions in binary form must reproduce the above copyright

• Neither the name of ARM nor the names of its contributors may be

Eect ON/OFF Switch between JHS/BOSS

Eect ON/OFF

trademarks of Roland Corporation in the United States and/or other countries.

this list of conditions and the following disclaimer.

notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

used to endorse or promote products derived from this software without specic prior written permission.

JHS ON/OFF

BOSS ON/OFF

REMOTE jack

Here you can connect a latch-type footswitch (sold separately: FS-5L, FS-6, FS-7).

* In the case of the FS-6 or FS-7, only latch mode can be used.

By operating the footswitch you can switch between the two types of distortion

or turn them on/o individually. For details, refer to “Operation at a Glance.”

Main Specications

BOSS JB-2: Angry Driver

Nominal Input Level -20 dBu

Input Impedance 1 MΩ

Nominal Output Level -20 dBu

Output Impedance 1 kΩ

Recommended Load Impedance

Power Supply Alkaline battery (9 V, 6LR61) or Carbon-zinc

Current Draw 50 mA (DC 9 V)

Dimensions 73 ( W) x 129 (D) x 59 (H) mm

Weight 440 g / 1 lb (including battery)

Accessories Owner’s Manual, Leaet (“USING THE UNIT

Options

(sold separately)

* 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.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

10 kΩ or greater

battery (9 V, 6F22)

AC adaptor (sold separately)

Expected battery life under continuous use: Alkaline: 9.5 hours, Carbon: 2.5 hours,

* These gures will vary depending on the

actual conditions of use.

2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches

SAFELY,” “IMPORTANT NOTE,” and “Information”)

Alkaline battery (9 V, 6LR61)

AC adaptor (PSA-series)

Footswitch: FS-5L, FS-6, FS-7

* The FS-6 and FS-7 can be used only in latch

mode.