Roland DS-50A User Manual
OWNER’S MANUAL
Thank you for purchasing the Roland Bi-Amp Monitor DS-50A.
Before using this unit, carefully read the sections entitled: “IMPORTANT
SAFETY INSTRUCTIONS” (p. 2), “USING THE UNIT SAFELY” (p. 3), and
“IMPORTANT NOTES” (p. 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
●
In Pursuit of High Sound Quality
The DS-50A powered monitor uses a two-way, bi-amplifier design to
achieve high sound quality.
The monitor features a 120-mm LF Driver and a 19-mm soft-dome HF
Driver as speakers. The amplification includes 30-watt and 20-watt
amplifiers designed to achieve high sound quality.
●
Digital Input
In addition to XLR and TRS phone analog input, the DS-50A is provided with digital input connectors
(coaxial and optical) that support 96 kHz sample rate and 24-bit digital audio.
Digitally input signals are reproduced faithfully through 24-bit D/A conversion, thus preventing noise
or a drop in sound quality.
You can use the monitors with a wide variety of equipment and applications through selective use of
the analog and digital settings.
Amplifier
20W
Amplifier
30W
●
Reproduction of a Variety of Speaker Sounds
(combination with the VS or VM)
By connecting the Roland V-Studio (VS series) or V-Mixer (VM series) to the DS-50A and using
Speaker Modeling Function of VS or VM, the DS-50A can reproduce the
sounds from a wide range of speakers, ranging from the professional
monitors from other manufacturers to the speaker in a small household
television set.
You can use the DS-50A in combination with the V-Studio or V-Mixer to
simulate the sound checks at mixdown, which conventionally have required
switching between multiple pairs of monitors set up to compare the sound.
* Please be aware that not all VS/VM series units are capable of providing
speaker modeling. Before making your purchase, you should confirm that
the unit you are considering does indeed provide the features you desire.
Copyright © 2000 ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without
the written permission of ROLAND CORPORATION.
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.
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated “dangerous voltage” within the
product’s enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying the product.
INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS.
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
WARNING - When using electric products, basic precautions should always be followed, including the following:
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a damp cloth.
7. Do not block any of the ventilation openings. Install in
accordance with the manufacturers instructions.
8. Do not install near any heat sources such as radiators,
heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades with
one wider than the other. A grounding type plug has two
blades and a third grounding prong. The wide blade or the
third prong are provided for your safety. When the provided
plug does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
WARNING:
IMPORTANT:
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 GREEN-AND-YELLOW must be connected to the terminal in the plug which is marked by the
letter E or by the safety earth symbol or coloured GREEN or GREEN-AND-YELLOW.
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.
THIS APPARATUS MUST BE EARTHED
THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE.
GREEN-AND-YELLOW: EARTH, BLUE: NEUTRAL, BROWN: LIVE
10. Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the
point where they exit from the apparatus.
11. Only use attachments/accessories specified by the
manufacturer.
12. Never use with a cart, stand, tripod, bracket,
or table except as specified by the
manufacturer, or sold with the apparatus.
When a cart is used, use caution when
moving the cart/apparatus combination to
avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when
unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing
is required when the apparatus has been damaged in any
way, such as power-supply cord or plug is damaged, liquid
has been spilled or objects have fallen into the apparatus,
the apparatus has been exposed to rain or moisture, does
not operate normally, or has been dropped.
For the U.K.
2
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 to damage or
other adverse effects caused with
respect to the home and all its
furnishings, as well to domestic
animals or pets.
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.
• Before using this unit, make sure to read the
instructions below, and the Owner’s Manual.
..........................................................................................................
• Do not open or perform any internal modifications
on the unit.
..........................................................................................................
• 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.
..........................................................................................................
• 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
• Exposed to rain; or are
• Dusty; or are
• Subject to high levels of vibration.
..........................................................................................................
• Make sure you always have the unit placed so it is
level and sure to remain stable. Never place it on
stands that could wobble, or on inclined surfaces.
..........................................................................................................
• The unit should be connected to a power supply
only of the type described in the operating instructions, or as marked on the unit.
..........................................................................................................
• Do not excessively twist or bend the power cord,
nor place heavy objects on it. Doing so can damage
the cord, producing severed elements and short
circuits. Damaged cords are fire and shock
hazards!
..........................................................................................................
• 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.
..........................................................................................................
• 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.
..........................................................................................................
• Protect the unit from strong impact.
(Do not drop it!)
..........................................................................................................
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• 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 retailer, the nearest Roland Service
Center, or an authorized Roland distributor, as
listed on the "Information" page.
..........................................................................................................
• The unit should be located so that its location or
position does not interfere with its proper ventilation.
..........................................................................................................
• Always grasp only the plug on the power-supply
cord when plugging into, or unplugging from, an
outlet or this 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.
..........................................................................................................
• Never handle the power cord or its plugs with wet
hands when plugging into, or unplugging from, an
outlet or this unit.
..........................................................................................................
• Before moving the unit, disconnect the power plug
from the outlet, and pull out all cords from external
devices.
..........................................................................................................
• Before cleaning the unit, turn off the power and
unplug the power cord from the outlet (Maintenance p. 5).
..........................................................................................................
• Whenever you suspect the possibility of lightning
in your area, pull the plug on the power cord out of
the outlet.
..........................................................................................................
• Should you remove the optical connector caps,
make sure to put them in a safe place out of
children's reach, so there is no chance of them
being swallowed accidentally.
..........................................................................................................
Contents
USING THE UNIT SAFELY......................................................................3
IMPORTANT NOTES...............................................................................5
Names of Things and What They Do ....................................................6
Connection Examples ............................................................................8
Important Notes on Placement .................................................................................................................8
Precautions When Connecting and Turning on the Power..................................................................8
Using Two DS-50A Monitors for Stereo Sound......................................................................................8
Using As a Reference Monitor for the V-Studio or V-Mixer ................................................................9
Reference ..............................................................................................10
Troubleshooting........................................................................................................................................10
Specifications .............................................................................................................................................10
Dimensions ................................................................................................................................................10
Frequency Response.................................................................................................................................11
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