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Roland SRA-200E - User Manual

Roland SRA-200E
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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 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 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
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Summary

Main Features of the Roland SRA-200 E

Lightweight, Compact, and Energy-Efficient Design

Describes the amp's physical and efficiency advantages, including its low weight and compact size.

Versatile Input and Output Features

Details the various input connector types and level switching for system compatibility.

Protection Circuits for Added Reliability

Lists internal protection circuits ensuring dependable operation and preventing damage.

Indicators for Signal Conditions

Mentions LEVEL and PROTECTION indicators for monitoring the amp's operating status.

Built-In Limiter for Sound Quality

Explains the internal limiter circuit for preventing clipping and damage to speakers from sudden peaks.

New ECOS High-Efficiency Amplifier Technology

IMPORTANT SAFETY INSTRUCTIONS

Caution: Risk of Electric Shock

Warning about not removing covers and referring servicing to qualified personnel to avoid electric shock.

Grounding Instructions for Safety

Details grounding requirements for the USA and UK to reduce the risk of electric shock.

USING THE UNIT SAFELY

Understanding Safety Notices and Symbols

Explains the meaning of WARNING/CAUTION notices and operational symbols used in the manual.

General Operation and Handling Precautions

Covers safe practices for power cords, placement, children, impact, and electrical load management.

Connection and Movement Safety

Details safe practices for handling plugs, cables, moving the unit, and dealing with adverse weather conditions.

Rack Mounting and Finger Safety

Provides guidance on safe rack mounting to prevent fingers being caught or pinched between the amp and the rack.

Important Notes for Operation

Power Supply Precautions

Notes on avoiding line noise and turning off power before connecting or disconnecting devices.

Placement Considerations for Optimal Performance

Advice on avoiding hum, interference, and wet areas for optimal unit placement.

Maintenance and Cleaning Guidelines

Instructions for cleaning the unit using appropriate cloths and mild detergents.

Additional Handling Precautions

Tips on careful handling of controls, cables, heat radiation, and maintaining neighborly volume levels.

Names and Functions of Controls

Front Panel Controls and Indicators Explained

Details the functions of attenuators, level indicators, protection indicator, and power switch.

Rear Panel Layout and Connections

Input Connectors and Terminals

Details XLR, TRS phone, and screw type input connectors and their pin assignments for audio sources.

Rear Panel Features Continued

Input Level and Mode Switches

Explains the Input Level switch and MODE switch for stereo/BTL configurations.

Speaker Connection Terminals

Describes the binding posts for connecting speakers and associated safety precautions.

Cooling Fan and Air Vents Function

Explains the cooling system and its importance for proper operation and heat dissipation.

Connecting Other Devices

Stereo Connection Setup Guide

Guides on setting up the unit for stereo operation with two speakers and independent channel control.

BTL Connection Setup for Higher Output

Explains how to configure the unit for BTL (bridged) mono operation for higher power output to a single speaker.

Parallel Connection Guide for Multiple Units

Multiple Stereo Setups

Illustrates connecting multiple units for stereo setups, detailing power-on/off sequences.

Multiple BTL Setups

Shows how to connect multiple units for BTL (bridged) setups with power sequence considerations.

Connecting and Power-On Precautions

Connection Safety Guidelines

Covers general connection safety, speaker impedance, and plug types to prevent malfunction or damage.

PC Limiter Circuit Protection

Explains how PC Limiter Circuits protect speakers from short circuits or low impedance connections.

Limiter Circuit Functionality

Details the Limiter Circuit's role in protecting the amp's output signal from peaks and noise.

Tips about Audio Connections

Cable and Plug Usage Advice

Advises on using appropriate cables and plugs, avoiding static-accumulating types to protect the amp.

Parallel Input Considerations

Explains parallel input wiring and warns against simultaneous input to the same channel to prevent damage.

About the Protection Circuits

Thermal Protection Circuit Operation

Describes the Thermal Protection Circuit that cuts output if heat sinks exceed 100°C to prevent overheating.

DC Detection Circuit for Speaker Safety

Explains the DC Detection Circuit that protects speakers from direct current in the output.

Muting Circuit Function for Power-On

Details the Muting Circuit that prevents speaker "shock noise" during power-on for speaker protection.

About Rack Mounting

Notes on Heat Dissipation for Racks

Provides guidance on ensuring adequate airflow and cooling when rack mounting the unit to prevent overheating.

Attaching the Rubber Feet

Troubleshooting Common Issues

No Sound Issues and Solutions

Lists common causes for no sound output and their solutions, referencing protection circuits.

Amp Noise and Fan Operation

Explains that audible fan noise is normal and not a malfunction, related to heat dissipation.

Incorrect Stereo Image Problems

Addresses stereo image issues, suggesting checks for MODE switch and input polarity.

Volume Adjustment Difficulties

Guides on using the INPUT LEVEL switch for proper volume adjustment based on the system.

Main Specifications

Dimensions and Physical Specifications

Roland Service and Distributor Information

Summary

Main Features of the Roland SRA-200 E

Lightweight, Compact, and Energy-Efficient Design

Describes the amp's physical and efficiency advantages, including its low weight and compact size.

Versatile Input and Output Features

Details the various input connector types and level switching for system compatibility.

Protection Circuits for Added Reliability

Lists internal protection circuits ensuring dependable operation and preventing damage.

Indicators for Signal Conditions

Mentions LEVEL and PROTECTION indicators for monitoring the amp's operating status.

Built-In Limiter for Sound Quality

Explains the internal limiter circuit for preventing clipping and damage to speakers from sudden peaks.

New ECOS High-Efficiency Amplifier Technology

IMPORTANT SAFETY INSTRUCTIONS

Caution: Risk of Electric Shock

Warning about not removing covers and referring servicing to qualified personnel to avoid electric shock.

Grounding Instructions for Safety

Details grounding requirements for the USA and UK to reduce the risk of electric shock.

USING THE UNIT SAFELY

Understanding Safety Notices and Symbols

Explains the meaning of WARNING/CAUTION notices and operational symbols used in the manual.

General Operation and Handling Precautions

Covers safe practices for power cords, placement, children, impact, and electrical load management.

Connection and Movement Safety

Details safe practices for handling plugs, cables, moving the unit, and dealing with adverse weather conditions.

Rack Mounting and Finger Safety

Provides guidance on safe rack mounting to prevent fingers being caught or pinched between the amp and the rack.

Important Notes for Operation

Power Supply Precautions

Notes on avoiding line noise and turning off power before connecting or disconnecting devices.

Placement Considerations for Optimal Performance

Advice on avoiding hum, interference, and wet areas for optimal unit placement.

Maintenance and Cleaning Guidelines

Instructions for cleaning the unit using appropriate cloths and mild detergents.

Additional Handling Precautions

Tips on careful handling of controls, cables, heat radiation, and maintaining neighborly volume levels.

Names and Functions of Controls

Front Panel Controls and Indicators Explained

Details the functions of attenuators, level indicators, protection indicator, and power switch.

Rear Panel Layout and Connections

Input Connectors and Terminals

Details XLR, TRS phone, and screw type input connectors and their pin assignments for audio sources.

Rear Panel Features Continued

Input Level and Mode Switches

Explains the Input Level switch and MODE switch for stereo/BTL configurations.

Speaker Connection Terminals

Describes the binding posts for connecting speakers and associated safety precautions.

Cooling Fan and Air Vents Function

Explains the cooling system and its importance for proper operation and heat dissipation.

Connecting Other Devices

Stereo Connection Setup Guide

Guides on setting up the unit for stereo operation with two speakers and independent channel control.

BTL Connection Setup for Higher Output

Explains how to configure the unit for BTL (bridged) mono operation for higher power output to a single speaker.

Parallel Connection Guide for Multiple Units

Multiple Stereo Setups

Illustrates connecting multiple units for stereo setups, detailing power-on/off sequences.

Multiple BTL Setups

Shows how to connect multiple units for BTL (bridged) setups with power sequence considerations.

Connecting and Power-On Precautions

Connection Safety Guidelines

Covers general connection safety, speaker impedance, and plug types to prevent malfunction or damage.

PC Limiter Circuit Protection

Explains how PC Limiter Circuits protect speakers from short circuits or low impedance connections.

Limiter Circuit Functionality

Details the Limiter Circuit's role in protecting the amp's output signal from peaks and noise.

Tips about Audio Connections

Cable and Plug Usage Advice

Advises on using appropriate cables and plugs, avoiding static-accumulating types to protect the amp.

Parallel Input Considerations

Explains parallel input wiring and warns against simultaneous input to the same channel to prevent damage.

About the Protection Circuits

Thermal Protection Circuit Operation

Describes the Thermal Protection Circuit that cuts output if heat sinks exceed 100°C to prevent overheating.

DC Detection Circuit for Speaker Safety

Explains the DC Detection Circuit that protects speakers from direct current in the output.

Muting Circuit Function for Power-On

Details the Muting Circuit that prevents speaker "shock noise" during power-on for speaker protection.

About Rack Mounting

Notes on Heat Dissipation for Racks

Provides guidance on ensuring adequate airflow and cooling when rack mounting the unit to prevent overheating.

Attaching the Rubber Feet

Troubleshooting Common Issues

No Sound Issues and Solutions

Lists common causes for no sound output and their solutions, referencing protection circuits.

Amp Noise and Fan Operation

Explains that audible fan noise is normal and not a malfunction, related to heat dissipation.

Incorrect Stereo Image Problems

Addresses stereo image issues, suggesting checks for MODE switch and input polarity.

Volume Adjustment Difficulties

Guides on using the INPUT LEVEL switch for proper volume adjustment based on the system.

Main Specifications

Dimensions and Physical Specifications

Roland Service and Distributor Information

Roland SRA-200E Specifications

General IconGeneral
BrandRoland
ModelSRA-200E
CategoryAmplifier
LanguageEnglish

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