Roland DB-900 Owner's Manual
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Roland DB-900 Owner's Manual

Roland DB-900 Owner's Manual

D-bass amplifier
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Owner's Manual
Thank you, and congratulations on your choice of the Roland DB-900 bass amplifier.
Before using this unit, carefully read the sections entitled: "IMPORTANT SAFETY INSTRUC-
TIONS" (page 2), "USING THE UNIT SAFELY" (page 3), and "IMPORTANT NOTES" (page 6).
These sections provide important information concerning the proper operation of the unit.
Additionally, in order to feel assured that you have gained a good grasp of every feature
provided by your new unit, Owner's Manual should be read in its entirety. The manual should
be saved and kept on hand as a convenient reference.
Contents
USING THE UNIT SAFELY .................................3
IMPORTANT NOTES...........................................6
Introduction.........................................................7
Main Features ..................................................................................... 7
Before You Use the DB-900 .............................................................. 7
Button Names and Functions............................8
Front panel.......................................................................................... 8
Rear panel ........................................................................................... 9
Connect your DB-900 .......................................11
Turn the power on and off ............................................................. 11
The Memory Function ......................................12
Calling Up Memory......................................................................... 12
How to handle the Casters ..............................13
Appendices .......................................................14
Factory-default Settings .................................................................. 14
Returning to the Factory-default Settings .................................... 14
Sample Settings ................................................................................ 15
Block diagram................................................................................... 17
Specifications .................................................................................... 18
202
Copyright © 2001 ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without the
written permission of ROLAND CORPORATION.
............... 12
........ 12

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Summary of Contents for Roland DB-900

  • Page 1: Table Of Contents

    Owner’s Manual Thank you, and congratulations on your choice of the Roland DB-900 bass amplifier. Before using this unit, carefully read the sections entitled: “IMPORTANT SAFETY INSTRUC- TIONS” (page 2), “USING THE UNIT SAFELY” (page 3), and “IMPORTANT NOTES” (page 6).

  • Page 2: Important Safety Instructions

    SAVE THESE INSTRUCTIONS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN ATTENTION : RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS.

  • Page 3: Using The Unit Safely

    • Do not attempt to repair the unit, or replace parts within it (except when this manual provides specific instructions directing you to do so). Refer all servicing to your retailer, the nearest Roland Service Center, or an authorized Roland distributor, as listed on the "Information" page.

  • Page 4: Additional Precautions

    (including padding) that it came in, if possible. Otherwise, you will need to use equivalent packaging materials. • Use a cable from Roland to make the connection. If using some other make of connection cable, please note the following precautions.
  • Page 5 • To avoid injury, avoid placing hands at points indicated by the arrows in the following figure. fig.001a fig.001b fig.001c • Do not allow the cooling vents on either side of the unit to become blocked. Obstructing the vents may result in damage or other problems.

  • Page 6: Power Supply

    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.

  • Page 7: Introduction

    Passive Radiator ... By combining the use of FFP technology with passive radiators at both left and right sides, the DB-900 is able to provide sound covering the full bass range, including the critical ultra-low frequency range—without super-woofers! D-Chorus ...

  • Page 8: Button Names And Functions

    Setting this switch to ON allows you to modify the tonal characteristics of each amp type selected with the TYPE switch. 5. Equalizer The DB-900 comes with a three-band equalizer. You can change midrange frequencies, so it’s possible to create a wide variety of sounds. BASS Knob This adjusts the tone of the bass range.

  • Page 9: Rear Panel

    6. D-Chorus Thanks to dynamic band-splitting processing according to input signals, you can perform with a chorus effect with no loss in bass-range response. INTENSITY Knob This adjusts the amount of chorus that’s applied. When you don’t want to use a chorus effect, set this to “Off” (the indicator goes dark).
  • Page 10 (When using the FS-5L) When the polarity switch is set as shown in the figure above the FS-5L’s indicator lights up when the DB-900 is switched to Manual. When using a stereo connection cord (PCS-31 etc.), be NOTE sure to use two foot switches. Use with one plug empty may result in unstable operation.

  • Page 11: Connect Your Db-900

    Connect your DB-900 Refer to the following diagram and connect the DB-900 to the external equipment you are using. fig. 5 (connection with an external instrument) Foot switches * 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.

  • Page 12: The Memory Function

    • To cancel the Write procedure, press the MANUAL button. The Write procedure is then cancelled, and the DB-900 switches to Manual mode. 3. Press the WRITE button to write (store) the settings to memory. The indicator flashes while writing is in progress, and remains steadily lit when it ends.

  • Page 13: How To Handle The Casters

    You can attach or remove casters as shown in the following figure. Be sure to remove all casters when accidental movement may be dangerous such as when setting up the DB-900 on stage or when transporting it in a vehicle.

  • Page 14: Appendices

    Appendices Factory-default Settings Memory A: Modern Bass Versatile bass sound for both slapping and finger-picking. The MIDDLE LEVEL knob controls the definition. fig. 8 (setting 1) Memory B: Slap Bass Typical slap sound used in studios. Adjust the COMPRESSION knob to your taste. fig.

  • Page 15: Sample Settings

    Then, select either the MEMORY A button or the MEMORY B button. MEMORY A: Rock Bass Standard rock sound. By turning up the GAIN knob enough to produce a slight distortion, you can enjoy the characteristic compression and fatness of a tube amp. fig.10 (OFF) MEMORY B: Solo Fretless Warm sound suited for fretless bass.
  • Page 16 Appendices Sample 2 Hold down the MEMORY B button while you switch on the power. fig.010 Then, select either the MEMORY A button or the MEMORY B button. MEMORY A: Chorus Bass Transparent chorus sound suited for slapping or flat-picking. The amount of modulation can be controlled with the D-CHORUS INTENSITY knob.

  • Page 17: Block Diagram

    Appendices Block diagram fig. 7 (block diagram of jack locations) INPUT POWER DSP PREAMP SEND RETURN BALANCED DI INSERT LINE OUT...

  • Page 18: Specifications

    Specifications Rated Power Output 320 W Nominal Input Level (@1KHz) INPUT HIGH -30 dBu/1 M INPUT LOW -20 dBu/300 k (AMP TYPE: SOLID STATE) INSERT RETURN +4 dBu Nominal Output Level BALANCED DI +4 dBu INSERT SEND +4 dBu LINE OUT (XLR type)
  • Page 19 This product complies with the requirements of European Directives EMC 89/336/EEC and LVD 73/23/EEC. 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 20: North America

    Information When you need repair service, call your nearest Roland Service Center or authorized Roland distributor in your country as shown below. SINGAPORE AFRICA AFRICA Swee Lee Company 150 Sims Drive, EGYPT SINGAPORE 387381 TEL: 846-3676 Al Fanny Trading Office P.O.

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