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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 b4 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 quali-

ty. As a result, the heat dissipation and power sections are smaller, making the amplifier lighter and more compact than previous mod-

els.

 

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 infor-
mation 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

Summary of Contents for SRA-200E

Page 1: ...er 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 Techno...

Page 2: ...ould 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 th...

Page 3: ...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...

Page 4: ...etergent 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 Ad...

Page 5: ...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...

Page 6: ...en 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 o...

Page 7: ...terminals for connecting speakers To avoid the risk of electric shock do not touch the terminals while the amp is on Please refer to Precautions When Connecting and Switching on the Power p 10 7 Cool...

Page 8: ...each SRA 200E In this mode Channel A and Channel B are bridged internally by means of a BTL connection BTL stands for Balanced Transformer Less and is a method in which the phase of one chan nel is i...

Page 9: ...e sure that the outputs of the mixer and other devices do not overload the system The input impedance of a single SRA 200E itself is 10 kiloohms with balanced or unbalanced input The total input imped...

Page 10: ...o allow shorting in the speaker cables PC Limiter Circuits see below Once the connections have been completed turn on power to your various devices in the order specified By turn ing on devices in the...

Page 11: ...ing and damage to the equipment do not use such cables Contacts for the INPUT connectors are wired in parallel This makes it convenient when a parallel connection is desired Parallel Connection p 9 Ho...

Page 12: ...formation on rack mounting the SRA 200E see Notes on Heat Dissipation p 13 The unit automatically restarts when the temperature of the heat sink falls However if the overheating protection circuit is...

Page 13: ...back to the intakes If there is no way to keep the rear panel of the amp away from the rack then make sure the rack has an opening or fan installed for ventilation of the heated air that builds up dur...

Page 14: ...ection Circuit p 12 When DC direct current is generated in the output sent to the speakers the DC Detection Circuit cuts off the sound to protect the speakers The SRA 200E restarts a few seconds after...

Page 15: ...t sensitivity 4 dBm IHF A weighted Damping Factor 125 or greater 8 ohms load 1 kHz Channel Separation 65 dB or greater 8 ohms load 1 kHz 50 W DIN audio weighted Slew Rate 11 V micro sec or greater ste...

Page 16: ...16 Dimensions 16 15 16 19 13 1 16 1 15 16 1 3 4 5 16 1 1 5 8 1 4...

Page 17: ...el 5 INPUT Connector 6 Jack 6 Terminals 6 INPUT LEVEL Switch 7 LEVEL Indicator 5 Limiter 10 MODE Switch 7 8 Muting Circuit 12 Parallel Connection 9 PC Limiter Circuit 10 POWER Indicator 5 POWER Switch...

Page 18: ...17 Diagorou Street Nicosia CYPRUS TEL 02 66 9426 DENMARK 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 Pa...

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