Roland AF-70 Owner`s manual

Roland AF-70 Owner`s manual
Information
When you need repair service, call your nearest Roland Service Center or authorized Roland distributor in your country as
shown below.
AFRICA
EGYPT
Al Fanny Trading Office
P.O. Box 2904,
El Horrieh Heliopolos, Cairo,
EGYPT
TEL: (02) 4185531
REUNION
Maison FO - YAM Marcel
25 Rue Jules MermanZL
Chaudron - BP79 97491
Ste Clotilde REUNION
TEL: 28 29 16
SOUTH AFRICA
That Other Music Shop
(PTY) Ltd.
11 Melle Street (Cnr Melle and
Juta Street)
Braamfontein 2001
Republic of SOUTH AFRICA
TEL: (011) 403 4105
Paul Bothner (PTY) Ltd.
17 Werdmuller Centre Claremont
7700
Republic of SOUTH AFRICA
P.O. Box 23032
Claremont, Cape Town
SOUTH AFRICA, 7735
TEL: (021) 64 4030
ASIA
CHINA
Beijing Xinghai Musical
Instruments Co., Ltd.
6 Huangmuchang Chao Yang
District, Beijing, CHINA
TEL: (010) 6774 7491
HONG KONG
Tom Lee Music Co., Ltd.
Service Division
POLAND
Productos Superiores, S.A.
P. P. H. Brzostowicz
A. Chahine & Fils
150 Sims Drive,
SINGAPORE 387381
TEL: 748-1669
Apartado 655 - Panama 1
REP. DE PANAMA
TEL: (507) 270-2200
UL. Gibraltarska 4.
PL-03664 Warszawa POLAND
TEL: (022) 679 44 19
CRISTOFORI MUSIC PTE
LTD
URUGUAY
PORTUGAL
P.O. Box 16-5857 Gergi Zeidan St.
Chahine Building, Achrafieh
Beirut, LEBANON
TEL: (01) 335799
Blk 3014, Bedok Industrial Park E,
#02-2148, SINGAPORE 489980
TEL: 243 9555
Cuareim 1488, Montevideo,
URUGUAY
TEL: 5982-924-2335
Swee Lee Company
TAIWAN
ROLAND TAIWAN
ENTERPRISE CO., LTD.
Room 5, 9fl. No. 112 Chung Shan
N.Road Sec.2, Taipei, TAIWAN,
R.O.C.
TEL: (02) 2561 3339
THAILAND
Theera Music Co. , Ltd.
330 Verng NakornKasem, Soi 2,
Bangkok 10100, THAILAND
TEL: (02) 2248821
VIETNAM
Saigon Music
138 Tran Quang Khai St.,
District 1
Ho Chi Minh City
VIETNAM
TEL: (08) 844-4068
AUSTRALIA/
NEW ZEALAND
AUSTRALIA
Roland Corporation
Australia Pty., Ltd.
38 Campbell Avenue
Dee Why West. NSW 2099
AUSTRALIA
TEL: (02) 9982 8266
NEW ZEALAND
Roland Corporation (NZ) Ltd.
97 Mt. Eden Road, Mt. Eden,
Auckland 3, NEW ZEALAND
TEL: (09) 3098 715
INDIA
CENTRAL/LATIN
AMERICA
409, Nirman Kendra Mahalaxmi
Flats Compound Off. Dr. Edwin
Moses Road, Mumbai-400011,
INDIA
TEL: (022) 498 3079
INDONESIA
PT Citra Inti Rama
J1. Cideng Timur No. 15J-150
Jakarta Pusat
INDONESIA
TEL: (021) 6324170
KOREA
Cosmos Corporation
Service Station
261 2nd Floor Nak-Won Arcade
Jong-Ro ku, Seoul, KOREA
TEL: (02) 742 8844
MALAYSIA
ARGENTINA
Instrumentos Musicales S.A.
Florida 656 2nd Floor
Office Number 206A
Buenos Aires
ARGENTINA, CP1005
TEL: (54-11) 4- 393-6057
BRAZIL
Roland Brasil Ltda.
R. Coronel Octaviano da Silveira
203 05522-010
Sao Paulo BRAZIL
TEL: (011) 3743 9377
CHILE
Comercial Fancy S.A.
Avenida Rancagua #0330
Providencia Santiago, CHILE
TEL: 56-2-373-9100
Bentley Music SDN BHD
EL SALVADOR
140 & 142, Jalan Bukit Bintang
55100 Kuala Lumpur,MALAYSIA
TEL: (03) 2443333
OMNI MUSIC
PHILIPPINES
G.A. Yupangco & Co. Inc.
339 Gil J. Puyat Avenue
Makati, Metro Manila 1200,
PHILIPPINES
TEL: (02) 899 9801
Todo Musica
VENEZUELA
75 Avenida Notre y Alameda
Juan Pablo 2 No. 4010
San Salvador, EL SALVADOR
TEL: (503) 262-0788
MEXICO
Casa Veerkamp, s.a. de c.v.
Av. Toluca No. 323 Col. Olivar de
los Padres 01780 Mexico D.F.
MEXICO
TEL: (525) 668 04 80
La Casa Wagner de
Guadalajara s.a. de c.v.
Av. Corona No. 202 S.J.
Guadalajara, Jalisco Mexico
C.P.44100 MEXICO
TEL: (3) 613 1414
Tecnologias Musica e Audio,
Roland Portugal, S.A.
RUA SANTA CATARINA
131 - 4000 Porto -PORTUGAL
TEL: (02) 208 44 56
Musicland Digital C.A.
ROMANIA
Av. Francisco de Miranda,
Centro Parque de Cristal, Nivel
C2 Local 20 Caracas
VENEZUELA
TEL: (02) 285 9218
Plata Libertatii 1.
RO-4200 Cheorgheni
TEL: (066) 164-609
AUSTRIA
Roland Austria GES.M.B.H.
Siemensstrasse 4, P.O. Box 74,
A-6063 RUM, AUSTRIA
TEL: (0512) 26 44 260
BELGIUM/HOLLAND/
LUXEMBOURG
Roland Benelux N. V.
Houtstraat 3 B-2260 Oevel
(Westerlo) BELGIUM
TEL: (014) 575811
Roland Scandinavia A/S
Nordhavnsvej 7, Postbox 880
DK-2100 Copenhagen
DENMARK
TEL: (039)16 6200
FRANCE
Roland France SA
4, Rue Paul Henri SPAAK
Parc de l'Esplanade F 77 462 St.
Thibault Lagny Cedex FRANCE
TEL: 01 600 73 500
Badie Studio & Stores
P.O. Box 62,
DOHA QATAR
TEL: 423554
Slami Music Company
SAUDI ARABIA
Sadojava-Triumfalnaja st., 16
103006 Moscow, RUSSIA
TEL: 095 209 2193
aDawliah Universal
Electronics APL
SPAIN
P.O. Box 2154 ALKHOBAR 31952,
SAUDI ARABIA
TEL: (03) 898 2081
Roland Electronics
de España, S. A.
SYRIA
Calle Bolivia 239 08020 Barcelona,
SPAIN
TEL: (93) 308 1000
SWEDEN
Roland Scandinavia A/S
SWEDISH SALES OFFICE
Danvik Center 28, 2 tr.
S-131 30 Nacka SWEDEN
TEL: (08) 702 0020
Roland (Switzerland) AG
Musitronic AG
GREECE
STOLLAS S.A.
Music Sound Light
155, New National Road
26422 Patras, GREECE
TEL: 061-435400
HUNGARY
Intermusica Ltd.
Warehouse Area ‘DEPO’ Pf.83
H-2046 Torokbalint, HUNGARY
TEL: (23) 511011
IRELAND
Roland Ireland
U.A.E.
UKRAINE
Zabeel Road, Al Sherooq Bldg.,
No. 14, Grand Floor DUBAI
U.A.E.
P.O. Box 8050 DUBAI, U.A.E.
TEL: (04) 360715
TIC-TAC
NORTH AMERICA
CANADA
Atlantic Close, Swansea
Enterprise Park SWANSEA
SA7 9FJ,
UNITED KINGDOM
TEL: (01792) 700139
Roland Canada Music Ltd.
(Head Office)
5480 Parkwood Way Richmond
B. C., V6V 2M4 CANADA
TEL: (0604) 270 6626
MIDDLE EAST
Roland Canada Music Ltd.
(Toronto Office)
Unit 2, 109 Woodbine Downs
Blvd, Etobicoke, ON
M9W 6Y1 CANADA
TEL: (0416) 213 9707
BAHRAIN
Moon Stores
Bab Al Bahrain Road,
P.O. Box 20077
State of BAHRAIN
TEL: 211 005
U. S. A.
Roland Corporation U.S.
CYPRUS
Radex Sound Equipment Ltd.
17 Diagorou St., P.O. Box 2046,
Nicosia CYPRUS
TEL: (02) 453 426
Halilit P. Greenspoon &
Sons Ltd.
ITALY
AMMAN Trading Agency
NORWAY
Roland Scandinavia Avd.
Kontor Norge
Lilleakerveien 2 Postboks 95
Lilleaker N-0216 Oslo
NORWAY
TEL: 273 0074
5100 S. Eastern Avenue
Los Angeles, CA 90040-2938,
U. S. A.
TEL: (323) 890 3700
ISRAEL
8 Retzif Fa'aliya Hashnya St.
Tel-Aviv-Yaho ISRAEL
TEL: (03) 6823666
Viale delle Industrie, 8
20020 Arese Milano, ITALY
TEL: (02) 937-78300
Zak Electronics & Musical
Instruments Co.
Roland (U.K.) Ltd.
Audio House, Belmont Court,
Donnybrook, Dublin 4.
Republic of IRELAND
TEL: (01) 2603501
Roland Italy S. p. A.
TURKEY
Gerberstrasse 5, CH-4410 Liestal,
SWITZERLAND
TEL: (061) 921 1615
UNITED KINGDOM
Oststrasse 96, 22844 Norderstedt,
GERMANY
TEL: (040) 52 60090
Khaled Ibn Al Walid St.
P.O. Box 13520
Damascus - SYRIA
TEL: (011) 2235 384
Siraselviler Cad. Billurcu Sok.
Mucadelle Cikmeze No. 11-13
Taksim. Istanbul. TURKEY
TEL: (0212) 2499324
SWITZERLAND
Roland Scandinavia As,
Filial Finland
Roland Elektronische
Musikinstrumente
Handelsgesellschaft mbH.
Technical Light & Sound
Center
Barkat Muzik aletleri ithalat
ve ihracat limited ireketi
FINLAND
GERMANY
OHI Electronics & Trading
Co. LLC
QATAR
FBS LINES
Mira Str. 19/108
P.O. Box 180
295400 Munkachevo, UKRAINE
TEL: (03131) 414-40
Lauttasaarentie 54 B
Fin-00201 Helsinki, FINLAND
TEL: (9) 682 4020
OMAN
P.O. Box 889 Muscat
Sultanate of OMAN
TEL: 959085
RUSSIA
EUROPE
DENMARK
22-32 Pun Shan Street, Tsuen
Wan, New Territories,
HONG KONG
TEL: 2415 0911
Rivera Digitec (India) Pvt. Ltd.
LEBANON
PANAMA
SINGAPORE
JORDAN
Prince Mohammed St. P.O. Box
825 Amman 11118 JORDAN
TEL: (06) 4641200
KUWAIT
Easa Husain Al-Yousifi
P.O. Box 126 Safat 13002
KUWAIT
TEL: 5719499
As of June 11, 1999
70904256
'99-7-C2-31K
Owner's Manual
USING THE UNIT SAFELY
WARNING
CAUTION
Used for instructions intended to alert
the user to the risk of death or severe
injury should the unit be used
improperly.
Used for instructions intended to alert
the user to the risk of injury or material
damage should the unit be used
improperly.
* Material damage refers
other adverse effects
respect to the home
furnishings, as well
animals or pets.
to damage or
caused with
and all its
to domestic
The
symbol alerts the user to important instructions
or warnings.The specific meaning of the symbol is
determined by the design contained within the
triangle. In the case of the symbol at left, it is used for
general cautions, warnings, or alerts to danger.
The
symbol alerts the user to items that must never
be carried out (are forbidden). The specific thing that
must not be done is indicated by the design contained
within the circle. In the case of the symbol at left, it
means that the unit must never be disassembled.
The ● symbol alerts the user to things that must be
carried out. The specific thing that must be done is
indicated by the design contained within the circle. In
the case of the symbol at left, it means that the powercord plug must be unplugged from the outlet.
ALWAYS OBSERVE THE FOLLOWING
WARNING
• Before using this unit, make sure to read the
instructions below, and the Owner's Manual.
......................................................................................................
• Do not open (or modify in any way) the unit or
its AC adaptor.
......................................................................................................
• 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 dealer, or qualified Roland service personnel.
......................................................................................................
• Never use or store the unit in places that are:
•Subject to temperature extremes (e.g., direct
sunlight in an enclosed vehicle, near a heating duct, on top of heat-generating equipment); or are
•Damp (e.g., baths, washrooms, on wet
floors); or are
•Humid; or are
•Dusty; or are
•Subject to high levels of vibration.
......................................................................................................
• This unit should be used only with a rack or
stand that is recommended by Roland.
......................................................................................................
• When using the unit with a rack or stand recommended by Roland, the rack or stand must
be carefully placed so it is level and sure to
remain stable. If not using a rack or stand, you
still need to make sure that any location you
choose for placing the unit provides a level surface that will properly support the unit, and
keep it from wobbling.
......................................................................................................
2
WARNING
• Be sure to use only the AC adaptor supplied
with the unit. Also, make sure the line voltage
at the installation matches the input voltage
specified on the AC adaptor's body. Other AC
adaptors may use a different polarity, or be
designed for a different voltage, so their use
could result in damage, malfunction, or electric
shock.
......................................................................................................
• Avoid damaging the power cord. Do not bend
it excessively, step on it, place heavy objects on
it, etc. A damaged cord can easily become a
shock or fire hazard. Never use a power cord
after it has been damaged.
......................................................................................................
• This unit, either alone or in combination with
an amplifier and headphones or speakers, may
be capable of producing sound levels that
could cause permanent hearing loss. Do not
operate for a long period of time at a high volume level, or at a level that is uncomfortable. If
you experience any hearing loss or ringing in
the ears, you should immediately stop using
the unit, and consult an audiologist.
......................................................................................................
• Do not allow any objects (e.g., flammable
material, coins, pins); or liquids of any kind
(water, soft drinks, etc.) to penetrate the unit.
......................................................................................................
WARNING
• Immediately turn the power off, remove the
AC adaptor from the outlet, and request servicing by your dealer or qualified Roland service personnel when:
•The AC adaptor or the power-supply cord
has been damaged; or
•Objects have fallen into, or liquid has been
spilled onto the unit; or
•The unit has been exposed to rain (or otherwise has become wet); or
•The unit does not appear to operate normally
or exhibits a marked change in performance.
CAUTION
• The unit and the AC adaptor should be located
so their location or position does not interfere
with their proper ventilation.
......................................................................................................
• Always grasp only the plug on the AC adaptor
cord when plugging into, or unplugging from,
an outlet or this unit.
......................................................................................................
• Whenever the unit is to remain unused for an
extended period of time, disconnect the AC
adaptor.
......................................................................................................
......................................................................................................
• In households with small children, an adult
should provide supervision until the child is
capable of following all the rules essential for
the safe operation of the unit.
• Try to prevent cords and cables from becoming
entangled. Also, all cords and cables should be
placed so they are out of the reach of children.
......................................................................................................
• Never climb on top of, nor place heavy objects
on the unit.
• Protect the unit from strong impact.
(Do not drop it!)
......................................................................................................
• Do not force the unit's power-supply cord to
share an outlet with an unreasonable number
of other devices. Be especially careful when
using extension cords—the total power used
by all devices you have connected to the extension cord's outlet must never exceed the power
rating (watts/amperes) for the extension cord.
Excessive loads can cause the insulation on the
cord to heat up and eventually melt through.
......................................................................................................
• Before using the unit in a foreign country, consult with your dealer, or qualified Roland service personnel.
......................................................................................................
......................................................................................................
......................................................................................................
• Never handle the AC adaptor or its plugs with
wet hands when plugging into, or unplugging
from, an outlet or this unit.
......................................................................................................
• Before moving the unit, disconnect the AC
adaptor and all cords coming from external
devices.
......................................................................................................
• Before cleaning the unit, turn off the power
and unplug the AC adaptor from the outlet
(page 9).
......................................................................................................
• Whenever you suspect the possibility of lightning in your area, disconnect the AC adaptor
from the outlet.
......................................................................................................
3
Thank you, and congratulations on your choice of the
Roland AF-70 Anti-Feedback unit.
Before using this unit, carefully read the sections
entitled: “USING THE UNIT SAFELY” and
“IMPORTANT NOTES” (page 2; page 5). 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, this
manual should be read in its entirety. The manual
should be saved and kept on hand as a convenient
reference.
Main Features
Auto Adjust
With the press of a button you can achieve the precise
adjustments necessary for eliminating feedback.
The lock feature saves your settings, so you won’t lose
them even if buttons are pressed accidentally.
Dynamic Adjust
Instantly cuts sudden, unexpected feedback.
Diffuse Function
Suppresses the ringing and coloration that occur just
before the onset of feedback.
Built-In Functions Effective for Use with
Microphones
•
•
•
•
Limiter
Enhancer
Low-Cut Filter
Hi-Cut Filter
You can turn all of these functions on and off with a
simple flick of a switch.
Connects Directly to a Variety of Sound
Systems
• Equipped with both XLR-type connectors and a
phone jack (TRS)
• Switchable between microphone level and line
level input/output
• Balanced input and output (unbalanced input and
output also possible)
• Built-in phantom power
• Ground lift function
• Phase switch
Small, Lightweight, and Easy to Handle
The unit can be rack mounted using a specially
designed rack mount adaptor (optional).
Copyright © 1997
ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without the written permission
of ROLAND CORPORATION.
4
IMPORTANT NOTES
Contents
In addition to the items listed under “USING THE
UNIT SAFELY” on page 2, please read and observe
the following:
USING THE UNIT SAFELY ................................ 2
Power Supply
IMPORTANT NOTES ........................................ 5
• Do not use this unit on the same power circuit with any
device that will generate line noise (such as an electric
motor or variable lighting system).
About Acoustic Feedback .......................... 6
• The AC adaptor will begin to generate heat after long
hours of consecutive use. This is normal, and is not a
cause for concern.
• Before connecting this unit to other devices, turn off the
power to all units. This will help prevent malfunctions
and/or damage to speakers or other devices.
Placement
• Using the unit near power amplifiers (or other equipment
containing large power transformers) may induce hum.
To alleviate the problem, change the orientation of this
unit; or move it farther away from the source of
interference.
• This device may interfere with radio and television
reception. Do not use this device in the vicinity of such
receivers.
• Do not expose the unit to direct sunlight, place it near
devices that radiate heat, leave it inside an enclosed
vehicle, or otherwise subject it to temperature extremes.
Excessive heat can deform or discolor the unit.
Maintenance
• For everyday cleaning wipe the unit with a soft, dry
cloth or one that has been slightly dampened with
water. To remove stubborn dirt, use a cloth impregnated
with a mild, non-abrasive detergent. Afterwards, be sure
to wipe the unit thoroughly with a soft, dry cloth.
• Never use benzene, thinners, alcohol or solvents of any
kind, to avoid the possibility of discoloration and/or
deformation.
Main Features ............................................... 4
What Is Acoustic Feedback? .......................... 6
To avoid feedback, it is necessary to: ............. 6
Using the AF-70 ............................................. 6
Panel Descriptions ........................................ 7
Making the Connections ............................. 9
About Auto Adjust ...................................... 10
Caution when using the auto adjust function ... 11
How to Use Auto Adjust .............................. 11
About the Safety Margin .............................. 12
About Anti-Feedback Filter Bandwidth ........ 12
About the Lock Function ........................... 12
About the Function Setting Switches ........ 13
FILTER WIDE ............................................... 13
DYNAMIC ................................................... 13
DIFFUSE ...................................................... 13
LIMITER ....................................................... 13
ENHANCER ................................................. 13
LOW-CUT/HI-CUT ...................................... 13
When using the unit by itself ..................... 13
Option ......................................................... 13
Specifications ............................................. 14
Additional Precautions
• Use a reasonable amount of care when using the unit's
buttons, sliders, or other controls; and when using its
jacks and connectors. Rough handling can lead to
malfunctions.
• When connecting / disconnecting all cables, grasp the
connector itself—never pull on the cable. This way you
will avoid causing shorts, or damage to the cable's
internal elements.
• To avoid disturbing your neighbors, try to keep the unit's
volume at reasonable levels (especially when it is late at
night).
• When you need to transport the unit, package it in the
box (including padding) that it came in, if possible.
Otherwise, you will need to use equivalent packaging
materials.
5
About Acoustic Feedback
What Is Acoustic Feedback?
Using the AF-70
Acoustic feedback, also known as howling, occurs
when the output from the speaker(s) is picked up by
a microphone, reamplified, then output again through
the speaker, causing an unpleasant oscillating whine.
Turning up the microphone volume, pointing the
microphone at the speaker, bringing the microphone
too close to the speaker, or raising speaker output
levels so that the sound enters the microphone may
very easily cause feedback.
The AF-70’s built-in feedback detection function and
extremely narrow-band filters work together to
automatically detect and eliminate feedback. Used
in sound checks, the Auto Adjust function allows fast
completion of feedback adjustments. The highprecision design of the feedback detection and antifeedback filters allows pinpoint accuracy in filtering
feedback frequencies, minimizing any deterioration
in the quality of the sound.
To avoid feedback, it is
necessary to:
• Set output levels to suit the size of the particular
hall or room.
• Locate the microphone as far away from the
speakers as possible, and avoid pointing the
microphone directly at a speaker.
• Set the levels of connected equipment to
appropriate levels.
These measures will help prevent some of the more
obviously controllable types of feedback. However,
feedback sometimes occurs well below the desired
total output level. In such situations, a common
technique is to reduce the gain in the vicinity of
frequencies where feedback is most likely to occur,
and then bring the total mix up to the desired level.
6
Panel Descriptions
Front Panel
PEAK Indicator
POWER Indicator
LOCK Switch
Auto Control Buttons
Function Setting Switches
AUTO Indicator
POWER Indicator
Auto Control Buttons ([START] [SET] [CLEAR])
With an AC adaptor connected, this indicator lights
up when the power is on.
Pressing the [START] button initiates Auto Adjust.
PEAK Indicator
Holding down the [CLEAR] button for approximately
two seconds completely clears the anti-feedback
filters.
This indicator lights during high input signal levels.
The indicator lights up at 6 dB below the level where
distortion begins. If the indicator seems to be lighting
up too frequently, flip the input level switch on the
rear panel.
AUTO Indicator
This indicates the operating status of the Auto Adjust
function.
Lit:
Auto Adjust is completed, and the antifeedback filters are set.
Flashing: Auto Adjust is in progress.
Off:
No anti-feedback filters are set.
Pressing the [SET] button ends the Auto Adjust process,
and fixes the anti-feedback filter settings.
For more information about Auto Adjust function,
please refer to “About Auto Adjust” on page 10.
LOCK Switch
With the lock function set to “ON,” even if the
[START], [SET], or [CLEAR] buttons should happen to
be pressed, Auto Adjust will not operate (for more on
the lock functions see page 12).
Function Setting Switches
These switches turn on and off each of the following
functions: Filter Wide, Dynamic, Diffuse, Limiter,
Enhancer, Low-Cut Filter, and Hi-Cut Filter. For more
information about each of these functions, please
refer to “About the Function Setting Switches” on
page 13.
* When altering settings, use a ball-point pen or similar
object. Do not apply excessive force to the switches, as
this may damage the unit.
* The fourth switch from the left is not assigned to any
function. Moving this switch has no effect on any
operation.
7
Rear Panel
OUTPUT Jacks
Ground Lift Switch
PHANTOM Power Switch
INPUT Jack
Cord Hook
AC Adaptor Jack
Phase Switch
OUTPUT LEVEL
Switch
INPUT LEVEL
Switch
Cord Hook
OUTPUT LEVEL Switch
To prevent the inadvertent disruption of power to
your unit (should the plug be pulled out accidentally),
and to avoid applying undue stress to the AC adaptor
jack, anchor the power cord using the cord hook, as
shown in the illustration.
Use this switch to select the output appropriate for the
input level of the equipment being connected. For
output to a device expecting microphone-level input,
switch to “Mic -40 dBm.”
Phase Switch
Ordinarily, this should be set to “NOR” (normal). Set
it to “INV” when you need output that has the phase
(polarity) inverted.
Ground Lift Switch
Should ordinarily be set to “NOR” (normal). If noise
arising from a ground loop should occur (while using
balanced connections), switch it to “LIFT.”
AC Adaptor Jack
Use the AC adaptor (BRC-Series) included with this
unit.
OUTPUT Jacks
Connect cables from here to the input jacks on your
other equipment.
8
INPUT Jack
Accepts connection of microphones, or the output
from external equipment. Features jack for both XLR3-31 connectors as well as standard TRS phone plugs.
INPUT LEVEL Switch
Used to select the level that matches the output level
used by the external equipment being connected. If
connecting a microphone directly to this unit, switch
to “Mic -40 dBm.”
PHANTOM Power Switch
Switch this on when connecting microphones that
require phantom power (48 V). Switch it off when
connecting other types of microphones, or other
devices and equipment.
* Set the phantom power switch to the proper position
BEFORE connecting microphones or other devices.
* You can damage a connected device by having the
phantom power switch set to “ON” when the device you
have connected actually does not need phantom power.
Please check the switch setting before making
connections.
The pin assignments for the input/output jack are
shown in the following diagram. Before connecting,
check the pin assignments on the device being
connected. The phone jack accepts a standard TRS(tip/
ring/sleeve) phone plug, and is used for balanced
input/output. (Unbalanced input/output is also
supported.)
Making the Connections
As shown in the diagram, connect any peripheral
equipment, then plug in the AC adaptor. By connecting
the AC adaptor, the power is turned on. The Power
indicator lights while power is on.
* Switch the phantom power on or off before making any
connections.
* 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.
* Once the connections have been completed, turn on
power to your various devices in the order specified. By
turning on devices in the wrong order, you risk causing
malfunction and/or damage to speakers and other
devices.
AF-70 —> Mixer etc.
* 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.
Example 1
Meeting Rooms/Classrooms
AC Adaptor
(Including)
HOT
COLD
GND
Powered Mixer
1
2 2
3
1
3
1: GND
2: HOT
3: COLD
Example 2
Karaoke/Public Address/Presentations
AC Adaptor
(Including)
Karaoke System
Public Address System
9
Example 3
Small-Scale Events/Concerts
AC Adaptor
(Including)
AC Adaptor
(Including)
About Auto Adjust
The AF-70’s Auto Adjust combines three built-in
functions (shown below), which provides convenient
control over any outbreak of feedback. This allows
the realization of stable sound systems featuring fast,
automatic prevention of feedback.
1. Feedback Detection
Detects feedback, finding the frequencies that are
feeding back with extreme precision.
Musical Instrument
Mixer
Powered
Amplifier
2. Anti-Feedback Filter
With twelve extremely narrow-band filters, feedback
is suppressed without affecting sound quality.
CD Player
3. Safety Margin Function
Example 4
Using a Wireless Microphone
Receiver
AC Adaptor
(Including)
Mixer
Public Address System
This provides a sufficient “safety margin,” or gain
before feedback, which makes for stable sound systems, even in changing conditions.
Caution when using the auto
adjust function
* Although feedback may occur momentarily during Auto
Adjust, this is due to the feedback detection operation,
and settings being made for the safety margin; there is
nothing abnormal about this. Feedback ceases after a
brief moment.
* If the feedback which occurs during auto adjust increases to an abnormally high level, there is danger that
your speakers may be damaged. If the feedback becomes
abnormally loud, lower the volume, and press the [SET]
button to halt the auto adjust. If you wish to perform the
auto adjust again, re-set the positions of the mics and
speakers, and adjust the levels of the connected equipment as appropriate. Then perform the auto adjust from
the beginning. In particular, do not raise the mic volume
any more than necessary.
* In some cases, feedback may not occur even if you
execute the auto adjust function, so that the auto adjust
function will exit without setting the anti-feedback filter,
and the Auto indicator will go dark. In such cases, you
can make more effective adjustment by pressing the
[START] button to continue auto adjust, and during the
auto adjust, encourage feedback by clapping your hands
or moving the mics slightly etc.
10
How to Use Auto Adjust
The Auto Adjust function is used during sound checks
to make adjustments for eliminating feedback. After
all equipment is connected, run the auto adjust
procedure during silent conditions (i.e., with no
sound entering the microphone).
Before beginning Auto Adjust, set the switches for
each function to the settings that will be used in
performance. For more information about each
function, please see “About the Function Setting
Switches” (page 13).
* Anti-feedback filter settings made during Auto Adjust
are preserved even after the power is turned off. Settings
are recalled when the power is turned back on.
Stopping Auto Adjust While in
Progress
Press the [SET] button. The Auto indicator light goes
on, and anti-feedback filter settings made up to that
point are set.
Continuing/Resuming Auto
Adjust
* Do not talk into the microphone during Auto Adjust.
1.
2.
Turn the microphone switch to “On,” set mixer,
power amp, and other equipment levels, then
bring up the microphone volume until the desired
level is reached.
Press the [START] button. The Auto indicator
flashes, and Auto Adjust begins operation.
Flashing
3.
Auto Adjust ends automatically after securing a
safety margin of approximately 12 dB. The Auto
indicator stops flashing and instead will light
steadily. The anti-feedback filter settings are fixed.
At this point, feedback adjustments made with
Auto Adjust are complete.
Press the [START] button. Auto Adjust resumes, using
settings made up to the point of cancellation.
Canceling the Anti-Feedback
Filter
Hold down the [CLEAR] button for approximately
two seconds. The Auto Indicator light goes off, and all
anti-feedback filters are cleared.
Lit
Restarting Auto Adjust From the
Beginning
* Once all twelve anti-feedback filters are set, Auto Adjust
automatically ends (regardless of the safety margin), and
the anti-feedback filter settings are fixed (see “About the
Safety Margin” on page 12).
2
1
First hold down the [CLEAR] button; this clears filters
that have been set. Then press the [START] button to
run Auto Adjust.
11
About the Safety Margin
About the Lock Function
At the completion of Auto Adjust, a “safety margin”
of approximately 12 dB will have been set up.
However, during the Auto Adjust procedure, the
Auto indicator will begin to flash rapidly as soon as a
safety margin of 6 dB has been achieved. This
conveniently allows you to stop Auto Adjust while it
is in progress, if you believe that a 6 dB margin is
sufficient for your needs.
* Auto Adjust ends when all twelve anti-feedback filters
are set, even if the approximately 12 dB for the safety
margin is not attained. You can check to see whether or
not all the anti-feedback filters have been set when the
lock function is set to “On” (See “About the Lock
Function”).
About Anti-Feedback Filter
Bandwidth
Turning on the Lock function disables the [START],
[SET], and [CLEAR] buttons, so even if they are
pressed in error, filter settings remain unchanged.
When carrying out Auto Adjust, press these settings
buttons after turning off the Lock function. After you
finish the Auto Adjust procedure, turn the Lock
function on once more.
* If the Lock function is set during the Auto Adjust
procedure, Auto Adjust ends at that point, and the antifeedback settings are fixed (this also happens if the [SET]
button is pressed).
Checking the Status of the Filter
Settings
You can modify the bandwidth of the anti-feedback
filters by changing the position of the “FILTER WIDE”
switch.
FILTER WIDE: On
Filter Bandwidth:1/10 Octave (Max. 1/6 Octave)
Characteristic: Greater Elimination of Feedback
FILTER WIDE: Off
Filter Bandwidth:1/20 Octave (Max. 1/10 Octave)
Characteristic: Less Extreme Effect on Sound
Quality
* Once the anti-feedback filter settings are fixed, changing
the Filter Wide switch will not affect the filter bandwidth.
* When frequencies that are extremely close to each other
are feeding back, the filter bandwidth is automatically
slightly broadened, and feedback from multiple
frequencies is removed with one filter.
* A bandwidth of 1/20 of an octave corresponds to the
definition achieved with a 200-band graphic equalizer.
12
With the lock function set to “ON,” you can check to
see whether all settings for the twelve anti-feedback
filters have been made.
After checking to see that the Lock switch is set to
“ON,” press the [START] and [SET] buttons
simultaneously. While they remain pressed
simultaneously, the Auto Indicator flashes.
Slow flashing:
Fewer than twelve of the anti-feedback filters are
set; approximately 12 dB is secured for the safety
margin.
Rapid flashing:
All twelve anti-feedback filters are set. If at this
point you wish to ensure a greater safety margin,
then readjust the volume levels, and the placement
of the microphone and speakers, and repeat Auto
Adjust from the beginning.
About the Function
Setting Switches
* Except for FILTER WIDE, changing a setting has an
immediate effect on the function.
FILTER WIDE
Switches the bandwidth of the anti-feedback filters
when set with Auto Adjust. For a more detailed
explanation, see “About Anti-Feedback Filter
Bandwidth” (page 12).
LOW-CUT/HI-CUT
Cuts both the low-end and high-end frequencies that
are unnecessary for listening to ordinary voices.
Effective against hiss and bass rumble circulating
from floors.
When using the unit by
itself
If you will be using this unit by itself, without using the
optional RAF-70 rack mount adaptor, attach the
included rubber feet as shown in the illustration.
DYNAMIC
This function constantly monitors the reproduced
sound, and at the first sign of feedback, it instantly
counteracts it, suppressing the feedback. Two antifeedback filters, assigned for the Dynamic Adjust
function, track and eliminate any new occurrence of
feedback. These filters have a 1/6-octave bandwidth.
DIFFUSE
The frequency at which feedback occurs is ordinarily
determined by the distance between the microphone
and speakers. Given a fixed microphone and speaker
placement, and an unchanging volume level,
feedback will gradually increase once it occurs.
However, by moving the microphone, you can cause
the frequency at which feedback is occurring to shift,
and suppress the growth of feedback.
The Diffuse function creates such changes in a virtual
manner. It is also effective in reducing the unpleasant
ringing and coloration that can occur at word endings.
Option
With the optional RAF-70 rack mount adaptor, a row
of up to three AF-70s can be mounted in an EIA-1U
rack.
LIMITER
Limits excessively high input levels, preventing the
distortion that results from overload.
ENHANCER
Enhances voice contour and consonants, and improves the articulation of amplified sound, making
speech more intelligible.
* Note that while you have the Enhancer switched on,
some distortion may occur, even though the Peak
indicator has not lighted.
13
Specifications
AF-70: ANTI-FEEDBACK
AD Conversion
Functions
22 bit AF Method
Auto Adjust Function (Filter: 12)
Filter Wide Function
Dynamic Adjust Function (Filter: 2)
Diffuse Function
Limiter Function
Enhancer Function
Low-Cut Filter
High-Cut Filter
Phantom Power (+48 V)
Output Phase Function
Output Ground Lift Function
DA Conversion
18 bit 16 Times Oversampling ∆ ∑ Conversion
Sampling Frequency
48 kHz
Memory
Non-volatile
Frequency Response
10 Hz to 22 kHz (+0/-3 dB)
Nominal Input Level
-40/-20/0 dBm (Balanced)
Input Impedance
Connectors
INPUT:
XLR-3-31 Type / 1/4 inch TRS Phone Type for
common use
OUTPUT: XLR-3-32 Type, 1/4 inch TRS Phone Type
* XLR Type: 1: GND, 2: HOT, 3: COLD
1/4 inch TRS Phone Type:
Tip: HOT, Ring: COLD, Sleeve: GND
20 kΩ (-20/0 dBm), 3 kΩ (-40dBm)
Power Supply
Maximum Input Level
AC 14 V (BOSS BRC-Series)
+24 dBm (Limiter: On, 0 dBm, Balanced)
+20 dBm (Limiter: Off, 0 dBm, Balanced)
Current Draw
500 mA
Head Room
20 dB (-40/-20 dBm), 18 dB (0 dBm)
Dimensions
Nominal Output Level
138 (W) x 197 (D) x 43 (H) mm
5-7/16 (W) x 7-13/16 (D) x 1-3/4 (H) inches
-40/-20/0 dBm (Balanced)
Output Impedance
600 Ω: 2 pin(HOT) - 3 pin(COLD)
300 Ω: 2 pin(HOT) - 1 pin(GND) / 3pin(COLD) - 1pin(GND)
Maximum Output Level
+18 dBm (0 dBm, Balanced into 600 Ω)
Total Harmonic Distortion
Weight
600 g (excluding the AC Adaptor) / 1 lb 6 oz
Accessories
Owner’s Manual, AC Adaptor BOSS BRC-Series,
Rubber foot (x4)
Option
Rack Mount Adaptor RAF-70
0.05 % or less
* 0 dBm = 0.775 Vrms
Dynamic Range
97 dB or greater (-20 dBm)
Anti-Feedback Characteristic
Center Frequency:
Q:
Cut Level:
Filter Width:
14
20 Hz to 20 kHz
Max 100
Max -40 dB
Min 1/20 oct
* In the interest of product improvement, the specifications and/or appearance of this unit are subject to
change without prior notice.
About the AF (Adaptive Focus) Method
This newly developed AD conversion process virtually
eliminates all quantization noise, and dramatically improves
overall dynamic range. It accomplishes this by using two
types of AD converters (with different input levels) to
convert audio signals into data in combination with a
unique DSP method for creating a composite of the separately
obtained data streams.
For the U.K.
IMPORTANT: THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE.
NEUTRAL
BLUE:
BROWN: LIVE
As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying
the terminals in your plug, proceed as follows:
The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.
Under no circumstances must either of the above wires be connected to the earth terminal of a three pin plug.
For EU Countries
This product complies with the requirements of European Directive 89/336/EEC.
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. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and receiver.
– Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
– Consult the dealer or an experienced radio/TV technician for help.
Unauthorized changes or modification to this system can void the users authority to operate this equipment.
This equipment requires shielded interface cables in order to meet FCC class B Limit.
For Canada
NOTICE
This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
AVIS
Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
For Australia
The supply cord of this transformer cannot be replaced; if the cord is damaged, the transformer should be discarded.
15
Information
When you need repair service, call your nearest Roland Service Center or authorized Roland distributor in your country as
shown below.
AFRICA
EGYPT
Al Fanny Trading Office
P.O. Box 2904,
El Horrieh Heliopolos, Cairo,
EGYPT
TEL: (02) 4185531
REUNION
Maison FO - YAM Marcel
25 Rue Jules MermanZL
Chaudron - BP79 97491
Ste Clotilde REUNION
TEL: 28 29 16
SOUTH AFRICA
That Other Music Shop
(PTY) Ltd.
11 Melle Street (Cnr Melle and
Juta Street)
Braamfontein 2001
Republic of SOUTH AFRICA
TEL: (011) 403 4105
Paul Bothner (PTY) Ltd.
17 Werdmuller Centre Claremont
7700
Republic of SOUTH AFRICA
P.O. Box 23032
Claremont, Cape Town
SOUTH AFRICA, 7735
TEL: (021) 64 4030
ASIA
CHINA
Beijing Xinghai Musical
Instruments Co., Ltd.
6 Huangmuchang Chao Yang
District, Beijing, CHINA
TEL: (010) 6774 7491
HONG KONG
Tom Lee Music Co., Ltd.
Service Division
POLAND
Productos Superiores, S.A.
P. P. H. Brzostowicz
A. Chahine & Fils
150 Sims Drive,
SINGAPORE 387381
TEL: 748-1669
Apartado 655 - Panama 1
REP. DE PANAMA
TEL: (507) 270-2200
UL. Gibraltarska 4.
PL-03664 Warszawa POLAND
TEL: (022) 679 44 19
CRISTOFORI MUSIC PTE
LTD
URUGUAY
PORTUGAL
P.O. Box 16-5857 Gergi Zeidan St.
Chahine Building, Achrafieh
Beirut, LEBANON
TEL: (01) 335799
Blk 3014, Bedok Industrial Park E,
#02-2148, SINGAPORE 489980
TEL: 243 9555
Cuareim 1488, Montevideo,
URUGUAY
TEL: 5982-924-2335
Swee Lee Company
TAIWAN
ROLAND TAIWAN
ENTERPRISE CO., LTD.
Room 5, 9fl. No. 112 Chung Shan
N.Road Sec.2, Taipei, TAIWAN,
R.O.C.
TEL: (02) 2561 3339
THAILAND
Theera Music Co. , Ltd.
330 Verng NakornKasem, Soi 2,
Bangkok 10100, THAILAND
TEL: (02) 2248821
VIETNAM
Saigon Music
138 Tran Quang Khai St.,
District 1
Ho Chi Minh City
VIETNAM
TEL: (08) 844-4068
AUSTRALIA/
NEW ZEALAND
AUSTRALIA
Roland Corporation
Australia Pty., Ltd.
38 Campbell Avenue
Dee Why West. NSW 2099
AUSTRALIA
TEL: (02) 9982 8266
NEW ZEALAND
Roland Corporation (NZ) Ltd.
97 Mt. Eden Road, Mt. Eden,
Auckland 3, NEW ZEALAND
TEL: (09) 3098 715
INDIA
CENTRAL/LATIN
AMERICA
409, Nirman Kendra Mahalaxmi
Flats Compound Off. Dr. Edwin
Moses Road, Mumbai-400011,
INDIA
TEL: (022) 498 3079
INDONESIA
PT Citra Inti Rama
J1. Cideng Timur No. 15J-150
Jakarta Pusat
INDONESIA
TEL: (021) 6324170
KOREA
Cosmos Corporation
Service Station
261 2nd Floor Nak-Won Arcade
Jong-Ro ku, Seoul, KOREA
TEL: (02) 742 8844
MALAYSIA
ARGENTINA
Instrumentos Musicales S.A.
Florida 656 2nd Floor
Office Number 206A
Buenos Aires
ARGENTINA, CP1005
TEL: (54-11) 4- 393-6057
BRAZIL
Roland Brasil Ltda.
R. Coronel Octaviano da Silveira
203 05522-010
Sao Paulo BRAZIL
TEL: (011) 3743 9377
CHILE
Comercial Fancy S.A.
Avenida Rancagua #0330
Providencia Santiago, CHILE
TEL: 56-2-373-9100
Bentley Music SDN BHD
EL SALVADOR
140 & 142, Jalan Bukit Bintang
55100 Kuala Lumpur,MALAYSIA
TEL: (03) 2443333
OMNI MUSIC
PHILIPPINES
G.A. Yupangco & Co. Inc.
339 Gil J. Puyat Avenue
Makati, Metro Manila 1200,
PHILIPPINES
TEL: (02) 899 9801
Todo Musica
VENEZUELA
75 Avenida Notre y Alameda
Juan Pablo 2 No. 4010
San Salvador, EL SALVADOR
TEL: (503) 262-0788
MEXICO
Casa Veerkamp, s.a. de c.v.
Av. Toluca No. 323 Col. Olivar de
los Padres 01780 Mexico D.F.
MEXICO
TEL: (525) 668 04 80
La Casa Wagner de
Guadalajara s.a. de c.v.
Av. Corona No. 202 S.J.
Guadalajara, Jalisco Mexico
C.P.44100 MEXICO
TEL: (3) 613 1414
Tecnologias Musica e Audio,
Roland Portugal, S.A.
RUA SANTA CATARINA
131 - 4000 Porto -PORTUGAL
TEL: (02) 208 44 56
Musicland Digital C.A.
ROMANIA
Av. Francisco de Miranda,
Centro Parque de Cristal, Nivel
C2 Local 20 Caracas
VENEZUELA
TEL: (02) 285 9218
Plata Libertatii 1.
RO-4200 Cheorgheni
TEL: (066) 164-609
AUSTRIA
Roland Austria GES.M.B.H.
Siemensstrasse 4, P.O. Box 74,
A-6063 RUM, AUSTRIA
TEL: (0512) 26 44 260
BELGIUM/HOLLAND/
LUXEMBOURG
Roland Benelux N. V.
Houtstraat 3 B-2260 Oevel
(Westerlo) BELGIUM
TEL: (014) 575811
Roland Scandinavia A/S
Nordhavnsvej 7, Postbox 880
DK-2100 Copenhagen
DENMARK
TEL: (039)16 6200
FRANCE
Roland France SA
4, Rue Paul Henri SPAAK
Parc de l'Esplanade F 77 462 St.
Thibault Lagny Cedex FRANCE
TEL: 01 600 73 500
Badie Studio & Stores
P.O. Box 62,
DOHA QATAR
TEL: 423554
Slami Music Company
SAUDI ARABIA
Sadojava-Triumfalnaja st., 16
103006 Moscow, RUSSIA
TEL: 095 209 2193
aDawliah Universal
Electronics APL
SPAIN
P.O. Box 2154 ALKHOBAR 31952,
SAUDI ARABIA
TEL: (03) 898 2081
Roland Electronics
de España, S. A.
SYRIA
Calle Bolivia 239 08020 Barcelona,
SPAIN
TEL: (93) 308 1000
SWEDEN
Roland Scandinavia A/S
SWEDISH SALES OFFICE
Danvik Center 28, 2 tr.
S-131 30 Nacka SWEDEN
TEL: (08) 702 0020
Roland (Switzerland) AG
Musitronic AG
GREECE
STOLLAS S.A.
Music Sound Light
155, New National Road
26422 Patras, GREECE
TEL: 061-435400
HUNGARY
Intermusica Ltd.
Warehouse Area ‘DEPO’ Pf.83
H-2046 Torokbalint, HUNGARY
TEL: (23) 511011
IRELAND
Roland Ireland
U.A.E.
UKRAINE
Zabeel Road, Al Sherooq Bldg.,
No. 14, Grand Floor DUBAI
U.A.E.
P.O. Box 8050 DUBAI, U.A.E.
TEL: (04) 360715
TIC-TAC
NORTH AMERICA
CANADA
Atlantic Close, Swansea
Enterprise Park SWANSEA
SA7 9FJ,
UNITED KINGDOM
TEL: (01792) 700139
Roland Canada Music Ltd.
(Head Office)
5480 Parkwood Way Richmond
B. C., V6V 2M4 CANADA
TEL: (0604) 270 6626
MIDDLE EAST
Roland Canada Music Ltd.
(Toronto Office)
Unit 2, 109 Woodbine Downs
Blvd, Etobicoke, ON
M9W 6Y1 CANADA
TEL: (0416) 213 9707
BAHRAIN
Moon Stores
Bab Al Bahrain Road,
P.O. Box 20077
State of BAHRAIN
TEL: 211 005
U. S. A.
Roland Corporation U.S.
CYPRUS
Radex Sound Equipment Ltd.
17 Diagorou St., P.O. Box 2046,
Nicosia CYPRUS
TEL: (02) 453 426
Halilit P. Greenspoon &
Sons Ltd.
ITALY
AMMAN Trading Agency
NORWAY
Roland Scandinavia Avd.
Kontor Norge
Lilleakerveien 2 Postboks 95
Lilleaker N-0216 Oslo
NORWAY
TEL: 273 0074
5100 S. Eastern Avenue
Los Angeles, CA 90040-2938,
U. S. A.
TEL: (323) 890 3700
ISRAEL
8 Retzif Fa'aliya Hashnya St.
Tel-Aviv-Yaho ISRAEL
TEL: (03) 6823666
Viale delle Industrie, 8
20020 Arese Milano, ITALY
TEL: (02) 937-78300
Zak Electronics & Musical
Instruments Co.
Roland (U.K.) Ltd.
Audio House, Belmont Court,
Donnybrook, Dublin 4.
Republic of IRELAND
TEL: (01) 2603501
Roland Italy S. p. A.
TURKEY
Gerberstrasse 5, CH-4410 Liestal,
SWITZERLAND
TEL: (061) 921 1615
UNITED KINGDOM
Oststrasse 96, 22844 Norderstedt,
GERMANY
TEL: (040) 52 60090
Khaled Ibn Al Walid St.
P.O. Box 13520
Damascus - SYRIA
TEL: (011) 2235 384
Siraselviler Cad. Billurcu Sok.
Mucadelle Cikmeze No. 11-13
Taksim. Istanbul. TURKEY
TEL: (0212) 2499324
SWITZERLAND
Roland Scandinavia As,
Filial Finland
Roland Elektronische
Musikinstrumente
Handelsgesellschaft mbH.
Technical Light & Sound
Center
Barkat Muzik aletleri ithalat
ve ihracat limited ireketi
FINLAND
GERMANY
OHI Electronics & Trading
Co. LLC
QATAR
FBS LINES
Mira Str. 19/108
P.O. Box 180
295400 Munkachevo, UKRAINE
TEL: (03131) 414-40
Lauttasaarentie 54 B
Fin-00201 Helsinki, FINLAND
TEL: (9) 682 4020
OMAN
P.O. Box 889 Muscat
Sultanate of OMAN
TEL: 959085
RUSSIA
EUROPE
DENMARK
22-32 Pun Shan Street, Tsuen
Wan, New Territories,
HONG KONG
TEL: 2415 0911
Rivera Digitec (India) Pvt. Ltd.
LEBANON
PANAMA
SINGAPORE
JORDAN
Prince Mohammed St. P.O. Box
825 Amman 11118 JORDAN
TEL: (06) 4641200
KUWAIT
Easa Husain Al-Yousifi
P.O. Box 126 Safat 13002
KUWAIT
TEL: 5719499
As of June 11, 1999
70904256
'99-7-C2-31K
Owner's Manual
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