Roland Corporation SRA-200E Owner's Manual
Main Features
• Lightweight, Compact, and Energy-Efficient
Employing the latest developments in high-efficiency amplifier technology, the SRA-200E packs a powerful 100 watts per channel (at 8
ohms); yet it weighs a mere 5.0 kilograms, consumes only half the current, and generates just one-third the heat of previous power
amps (in actual operation, compared with previous Roland products). With its compact design, this amp takes up only 1U (1.75-inch
EIA standard rack space), and is only 360 mm deep.
• Packed with Features
The SRA-200E features three types of input connectors: XLR-3-31 connectors, standard phone TRS jacks, and screw type terminals.
All inputs are balanced. With the Input Level switch, input sensitivity can be switched between +4 dBm and -10 dBm, flexibility that
ensures compatibility with a variety of systems. The SRA-200E also features binding post output terminals which can accept either
banana plugs or wide-gauge speaker cables.
• Protection Circuits for Added Reliability
The SRA-200 features a variety of protection circuits, including the PC Limiter Circuit that guards against shorting in the output, the
Thermal Protection Circuit, the speaker-saving DC Detection Circuit, the Muting Circuit that cuts the "shock noise" that occurs when
the power is switched on, all to ensure dependable operation.
• The indicators let you know about signal conditions.
With the LEVEL indicator and PROTECTION indicator, you can check to be sure of the amp's operating conditions.
• Built-In Limiter
The SRA-200 features an internal Limiter Circuit. This provide protection against unpleasant sound and damage to speakers resulting
from clipping in the amp.
New ECOS High-Efficiency Amplifier Technology
ECOS (Efficiency Control Operation System) is a new high-efficiency amplifier technology developed by Roland. With this technology,
amplifier power consumption is only 1/2 that of previous amps, while generating only 1/3 of the heat, all with no sacrifice in sound quality. As a result, the heat dissipation and power sections are smaller, making the amplifier lighter and more compact than previous models.
Before using this unit, carefully read the sections entitled: “IMPORTANT SAFETY INSTRUCTIONS” (p. 2),
“USING THE UNIT SAFELY” (p. 3), and “IMPORTANT NOTES” (p. 4). 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.
Using The Unit Safely.........................................................3
Important Notes...................................................................4
Names and Functions..........................................................5
Front Panel.......................................................................5
Rear Panel.........................................................................6
Connecting Other Devices.................................................8
Stereo Connection ...........................................................8
BTL Connection...............................................................8
Parallel Connection.........................................................9
Precautions When Connecting and Turning on
the Power........................................................................10
Tips about Connection .................................................11
About the Protection Circuits..........................................12
About Rack Mounting......................................................13
Attaching the Rubber Feet...............................................13
Troubleshooting.................................................................14
Main Specifications...........................................................15
Dimensions.........................................................................16
Index.....................................................................................17
Contents
Copyright 1998 ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without the written permission of ROLAND CORPORATION.
01677290 ‘02-6-A2-51K
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:
Read all the instructions before using the product.
Do not use this product near water — for example, near a
bathtub, washbowl, kitchen sink, in a wet basement, or near
a swimming pool, or the like.
This product should be used only with a cart or stand that is
recommended by the manufacturer.
This product, 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 consult an
audiologist.
The product should be located so that its location or position
does not interfere with its proper ventilation.
The product should be located away from heat sources such
as radiators, heat registers, or other products that produce
heat.
The product should be connected to a power supply only of
the type described in the operating instructions or as marked
on the product.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
A.
B.
C.
D.
E.
The power-supply cord of the product should be unplugged
from the outlet when left unused for a long period of time.
Care should be taken so that objects do not fall and liquids
are not spilled into the enclosure through openings.
The product should be serviced by qualified service
personnel when:
The power-supply cord or the plug has been damaged; or
Objects have fallen, or liquid has been spilled into the
product; or
The product has been exposed to rain; or
The product does not appear to operate normally or
exhibits a marked change in performance; or
The product has been dropped, or the enclosure
damaged.
Do not attempt to service the product beyond that described
in the user-maintenance instructions. All other servicing
should be referred to qualified service personnel.
GROUNDING INSTRUCTIONS
This product must be grounded. If it should malfunction or breakdown, grounding provides a path of least resistance for
electric current to reduce the risk of electric shock.
This product is equipped with a cord having an equipment-grounding conductor and a grounding plug. The plug must be
plugged into an appropriate outlet that is properly installed and grounded in accordance with all local codes and ordinances.
DANGER: Improper connection of the equipment-grounding conductor can result in a risk of electric shock. Check with a
qualified electrician or serviceman if you are in doubt as to whether the product is properly grounded.
Do not modify the plug provided with the product — if it will not fit the outlet, have a proper outlet installed by a qualified
electrician.
For the USA
The product which is equipped with a THREE WIRE GROUNDING TYPE LINE PLUG must be grounded.
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
For the U.K.
2
• 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.
.........................................................................................................
• 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.
.........................................................................................................
• 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.
.........................................................................................................
• 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!)
.........................................................................................................
• 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.
• Always grasp only the plug on the power-supply
cord when plugging into, or unplugging from an outlet.
.........................................................................................................
• 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 plug with wet
hands when plugging into, or unplugging from, an
outlet.
.........................................................................................................
• 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 (p. 5).
.........................................................................................................
• Whenever you suspect the possibility of lightning
in your area, pull the plug on the power cord out of
the outlet.
.........................................................................................................
• When you mount the unit onto a rack, please be
careful so that you won't pinch your fingers.
.........................................................................................................
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.
Used for instructions intended to alert
the user to the risk of death or severe
injury should the unit be used
improperly.
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.
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.
3
Important Notes
In addition to the items listed under “IMPORTANT SAFETY INSTRUCTIONS” and “USING THE UNIT SAFELY”
on pages 2 and 3, please read and observe the following:
Power Supply
• 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).
• 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.
• To avoid possible breakdown, do not use the unit in a wet area, such as an area exposed to rain or other moisture.
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 benzine, thinners, alcohol or solvents of any kind, to avoid the possibility of discoloration and/or
deformation.
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.
• A small amount of heat will radiate from the unit during normal operation.
• 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.
• Use a cable from Roland to make the connection. If using some other make of connection cable, please note the
following precautions.
• Some connection cables contain resistors. Do not use cables that incorporate resistors for connecting to this
unit. The use of such cables can cause the sound level to be extremely low, or impossible to hear. For information
on cable specifications, contact the manufacturer of the cable.
4
Names and Functions
Front Panel
1. Attenuator
This adjusts the level of what is output to the speakers.
Adjust for the most suitable volume according to the input level of the connected device.
*When set to BTL mode, volume is adjusted with the Channel A attenuator. (BTL Connection → p. 8)
2. LEVEL Indicators
Output is indicated by these 5-step LED level indicators.
The Limiter Circuit is activated when the CLIP indicator lights. The CLIP indicator lighting too frequently means
that the output levels are too high; adjust the attenuator to attain the proper output level. (About the Limiter → p.
10)
3. PROTECTION Indicator
This lights when the protection circuits are in operation.
When this indicator is lit, sound from the speakers is cut. Stop operation of the equipment, and immediately check
the operating conditions. (About the Protection Circuits → p. 12)
4. POWER Indicator
This is lit when the power is on.
5. POWER Switch
This switches the power on and off.
* When turning the power on or off, first turn the attenuator (1) completely counterclockwise (-infinity) before
pressing the switch.
* 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. (About the Protection Circuits → p. 12)
123 45
5
Rear Panel
INPUT
1. INPUT Connector (XLR-3-31 Type)
* The pin assignment for the XLR type connectors is as shown below. Before making any connections, make sure
that this pin assignment is compatible with that of all your other devices.
2. INPUT Jack (TRS Standard Phone Type)
Connect using quarter-inch TRS phone type when input is balanced, and connect with quarter-inch phone type
when the input is unbalanced.
* Check the pin assignments of other devices before connecting.
3. INPUT Terminals
*Check the pin assignments of other devices before connecting. When making connections, be careful to avoid los-
ing the screws that you remove.
1
2
3
45
67
INPUT
OUTPUT
12
3
1:GND
2:HOT
3:COLD
GND(SLEEVE)
HOT(TIP)
COLD(RING)
GND(SLEEVE)
HOT(TIP)
Quarter-inch TRS Phone Type
(Balanced)
Quarter-inch Phone Type
(Unbalanced)
COLD
GND HOT
COLD
GNDHOT
6
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