IMPORTANT NOTES
291b
In addition to the items listed under OIMPORTANT SAFETY INSTRUCTIONS� and OUSING THE UNIT SAFELY� on page 3
and 4, please read and observe the following:
add 1
Power SupplyY During operation, this unit must be placed at a distance of no less
301
Y Do not use this unit on the same power circuit with any device that than 20 cm from any walls.
add 2
will generate line noise (such as an electric motor or variable lighting Y Do not allow objects to remain on top of the unit while it is in
system).operation.
307
Y Before connecting this unit to other devices, turn off the power to all Y If you cover the top of the unit, the function is defeated, and
units. This will help prevent malfunctions and/or damage to temperature can rise to overly high level, which could cause burns
speakers or other devices.if they are accidentally touched.
* Please also refer to Important Notes on Placement (p. 9).
Placement
351
Y Using the unit near power amplifiers (or other equipment containing Maintenance
large power transformers) may induce hum. To alleviate the 401a
Y For everyday cleaning wipe the unit with a soft, dry cloth or one that
problem, change the orientation of this unit; or move it farther away
has been slightly dampened with water. To remove stubborn dirt,
from the source of interference.
use a cloth impregnated with a mild, non-abrasive detergent. After-
352a
Y This device may interfere with radio and television reception. Do not wards, be sure to wipe the unit thoroughly with a soft, dry cloth.
use this device in the vicinity of such receivers.402
352bY Never use benzine, thinners, alcohol or solvents of any kind, to avoid
Y Noise may be produced if wireless communications devices, such as the possibility of discoloration and/or deformation.
cell phones, are operated in the vicinity of this unit. Such noise could
occur when receiving or initiating a call, or while conversing. Should Additional Precautions
you experience such problems, you should relocate such wireless 553Y Use a reasonable amount of care when using the unitOs buttons,
devices so they are at a greater distance from this unit, or switch sliders, or other controls; and when using its jacks and connectors.
them off.Rough handling can lead to malfunctions.
354b556
Y Do not expose the unit to direct sunlight, place it near devices that Y When connecting / disconnecting all cables, grasp the connector
radiate heat, leave it inside an enclosed vehicle, or otherwise subject itselfNnever pull on the cable. This way you will avoid causing
it to temperature extremes. Also, do not allow lighting devices that shorts, or damage to the cableOs internal elements.
normally are used while their light source is very close to the unit 557
YA small amount of heat will radiate from the unit during normal
(such as a piano light), or powerful spotlights to shine upon the same
operation.
area of the unit for extended periods of time. Excessive heat can 558b
deform or discolor the unit.Y To avoid disturbing your neighbors, try to keep the unitOs volume at
355reasonable levels (especially when it is late at night).
Y To avoid possible breakdown, do not use the unit in a wet area, such 559a
as an area exposed to rain or other moisture.Y When you need to transport the unit, package it in the box (including
356padding) that it came in, if possible. Otherwise, you will need to use
Y Do not allow rubber, vinyl, or similar materials to remain on the unit
equivalent packaging materials.
for long periods of time. Such objects can discolor or otherwise 562
harmfully affect the finish.Y Use a cable from Roland to make the connection. If using some other
357make of connection cable, please note the following precautions.
Y Do not put anything that contains water (e.g., flower vases) on the
Y Some connection cables contain resistors. Do not use cables that
unit. Also, avoid the use of insecticides, perfumes, alcohol, nail
incorporate resistors for connecting to this unit. The use of such
polish, spray cans, etc., near the unit. Swiftly wipe away any liquid cables can cause the sound level to be extremely low, or impos-
that spills on the unit using a dry, soft cloth.sible to hear. For information on cable specifications, contact the
359manufacturer of the cable.
Y Do not paste stickers, decals, or the like to this instrument. Peeling
such matter off the instrument may damage the exterior finish.
Table of Contents
Main Features........................................................................................................................................ 1
USING THE UNIT SAFELY.................................................................................................................... 4
IMPORTANT NOTES ............................................................................................................................. 5
Table of Contents.................................................................................................................................. 5
Panel Descriptions................................................................................................................................ 6
Front ............................................................................................................................................................. 6
Rear............................................................................................................................................................... 6
Connection Examples .......................................................................................................................... 8
Using Two DS-30A Monitors for Stereo Sound..................................................................................... 8
Important Notes on Placement................................................................................................................. 9
Precautions When Connecting and Turning on the Power ................................................................. 9
Reference............................................................................................................................................. 10
Troubleshooting........................................................................................................................................ 10
Specifications............................................................................................................................................. 10
Dimensions................................................................................................................................................ 11
Frequency Response................................................................................................................................. 11
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ACEC
