EAW DSA250 User Manual

DSA250 & DSA230 LOUDSPEAKER OWNER’S MANUAL

DSA Owner’s Manual

TABLE OF CONTENTS

Introduction Chapter 1 Safety

1.1 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2.1 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Chapter 2 Unpacking

2.1 Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 Shipping Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3 Returning Products to EAW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Chapter 3 Quick Start

3.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.2 Audio Signal Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.3 Computer Control Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.4 Daisy Chaining Audio and Computer Signal Between Loudspeakers. . . . . . . . . . . . 8

3.5 AC Mains Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.5.1 AC Mains Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.5.2 AC Mains Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.6 Physical Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.6.1 Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.6.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.7 Signal Processing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Chapter 4 Description

4.1 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1.1 DSA Series Models. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1.2 Acoustical Benefits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1.3 Physical Benefits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1.4 Electrical Benefits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.2.1 Acoustical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.2.2 Electronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.2.3 Computer Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.2.4 Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.2.5 Physical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.3 Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.4 Engineering Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.5 DSAPilot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.6 Low Frequency Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.7 Comparison To Traditional Products. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.8 Designing DSA Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Chapter 5 Installation

5.1 Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.1.1 Cable Routing Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.1.2 Audio Signal Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.1.3 Computer Control Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.1.4 Daisy Chaining Computer and Audio Signals Within Clusters with Multiple Loudspeakers. . . 1 7

5.1.5 Daisy Chaining Computer and Audio Signals Between Clusters. . . . . . . . . . . . . . . . . 18

5.1.6 EIA-485 Terminate Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.2 CobraNet™ Network Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.2.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.2.2 CobraNet™ is Usually Desirable To Use When . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.2.3 Additional Equipment You Must Supply For CobraNet™:. . . . . . . . . . . . . . . . . . . . . . . 19

5.2.4 Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.2.5 Audio/Computer Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.2.6 Loudspeaker Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.2.7 Multiple Loudspeakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.2.8 Support For CobraNet™/Ethernet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.3 AC Mains Power Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.3.1 AC Mains Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.3.2 AC Mains Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.3.3 Power On / Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.3.4 AC Mains Fuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.4 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.4.1 Electrical Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.4.2 Audio Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.5 Physical Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.5.1 Installation Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.5.2 Physical Orientation - Signal End / Power End. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.5.3 Multiple Loudspeakers and Cluster Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.5.4 Installation Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.5.5 Angling Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.5.6 Mounting Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.5.7 Wall Bracket Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.5.8 Enclosure Bracket Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.5.9 Enclosure Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.6 Initial Set-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.6.1 Verify Loudspeaker Orientation and Position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.7 Acoustical Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Chapter 6 Operation

6.1 Operational Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.1.1 Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.1.2 LED Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.1.3 Signal Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.2 Operational Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6.3 Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6.3.1 Powering Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6.3.2 Signal Processing Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6.3.3 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.4 Operational `DOS’and `DONTS’ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.4.1 Equalization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.4.2 Maximum Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.4.3 Low Frequency Content. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.4.4 Input Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.4.5 DSAPilot Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Chapter 7 Maintenance and Service

7.1 Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.2 Service Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.3 How to Contact EAW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.3.1 Operating Questions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.3.2 Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.3.3 Literature and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.3.4 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Chapter 8 Appendices

8.1 Inspections And Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

8.1.1 Periodic Physical Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

8.1.2 Performance Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

8.1.3 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

8.2 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

8.3 EIA-485 Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8.3.1 Cabling Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8.3.2 Termination Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

8.4 Support For Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

8.5 Support For CobraNet™. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Chapter 9 Mechanical Drawings

9.1 DSA230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

9.2 DSA250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

9.3 WALL BRACKET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Introduction

The Digitally Steerable DSA Series Arrays represents EAW’s latest innovation in advanced, acoustic modeling and applied technology in designing loudspeakers. The DSA250 full-range and DSA230 voice-only or low frequency system are small format, column-type loudspeaker systems with a user-variable vertical beamwidth. The easy-to-use DSAPilot software allows accurate adjustment of the loudspeaker’s coverage area from a fixed, vertical mounting location. In addition to excellent vocal performance, the DSA Series is fully capable of full-range music applications. With integral signal processing and amplification, DSA loudspeakers are economical and simple to use.

This manual provides information about the design, configuration, and operation of DSA Series loudspeakers. It is intended to be used in conjunction with the DSAPilot Windows®-based software.

Please thoroughly familiarize yourself with this manual. The more you learn and understand about the DSA Series the easier you will find it to use. This is not so much because of any inherent complexities, but because it is actually easier to use than most. As such, it can take some experience with the system to establish comfort with and appreciation of both its versatility and inherent simplicity.

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Chapter 1 Safety

1.1 Safety Precautions

The terms “Caution,” “Warning,” and “Danger” are used throughout this manual to alert the reader to important safety precautions. If you have any questions about any aspects of these precautions, contact your local dealer, distributor, or EAW. The following are the descriptions of the safety precautions.

CAUTION: describes an operating condition or user action that may expose the equipment or user to potential damage or danger.

WARNING: describes an operating condition or user action that will cause damage to the equipment or injure the user.

DANGER: describes an operating condition or user action that will immediately damage the equipment or be extremely dangerous or life threatening to the user.

1.2 Safety Instructions

CAUTION: To reduce the risk of electric shock, do not remove cover (or back). No user-serviceable parts inside. Refer servicing to qualified personnel.

WARNING: To reduce risk of fire or electric shock do not expose this appliance to rain or moisture.

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 of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

This apparatus does not exceed the Class A/Class B (whichever is applicable) limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Department of Communications.

WARNING: Some aspects of installation, rigging, electrical power, and other fields related to using equipment, which EAW manufactures, sells, or distributes, are potentially hazardous. Any person using this equipment is personally responsible for his or her own safety. EAW transactions are made with the assumption that the purchaser is a qualified individual or will have only qualified individuals perform work with the equipment. EAW will not be liable for any damages arising from the use of equipment sold to purchaser.

DANGER: Only persons with the knowledge of proper hardware and installation techniques required should attempt to install DSA Series loudspeaker systems overhead. Failure to follow this precaution may result in damage to the equipment, injury, or death.

1.2.1 GENERAL PRECAUTIONS

1. Read and Follow Instructions — Before installing and operating this loudspeaker, read and follow all instructions and safety precautions in this manual and on the loudspeaker. Retain them for future reference.

2. Ventilation — The sides and rear of the enclosure form the heat sink for the internal amplifiers and may reach high temperatures during use. As such, adequate ventilation is required to ensure proper operation. Allow a minimum of 2 inches of clearance between the enclosure and adjacent surfaces so as not to impede the flow of air past the sides and rear surfaces. Also, locate the loudspeaker away from heat sources such as radiators or other devices that produce heat. If the enclosure is in a grille-covered recess, forced air ventilation may be required.

3. AC Mains — Connect this loudspeaker only to a nominal 115 V or 230 V AC Mains supply as described in this manual. Before applying AC power, ensure the AC Mains voltage rating on the loudspeaker matches the nominal AC Mains voltage being supplied: 115 V or 230 V, 50 Hz or 60 Hz.

DANGER: DO NOT APPLY 230 V MAINS POWER IF THE VOLTAGE RATING ON THE LOUDSPEAKER IS 115 V. IMMEDIATE AND CATASTROPHIC DAMAGE TO THE LOUDSPEAKER WILL RESULT AND MAY CAUSE A FIRE HAZARD, SERIOUS PERSONAL INJURY, OR DEATH.

4. Object and Liquid Entry — Take care that objects do not fall into and liquids are not spilled into the loudspeaker.

5. Servicing — Do not attempt to service this loudspeaker. All service or repair should be referred to the EAW Service Department or your EAW Distributor.

6. Damage Requiring Service — Only qualified service personnel should service this loudspeaker if one or more of these conditions occur:

A. The power-supply cord or the plug has been damaged. B. Objects have fallen, or liquid has spilled into the loudspeaker. C. The loudspeaker has been exposed to rain. D. The loudspeaker does not appear to operate normally or exhibits a marked

change in performance.

E. The loudspeaker has been dropped, or its chassis damaged.

7. Grounding or Polarization — Do not defeat the electrical grounding means provided for this loudspeaker.

Chapter 2 Unpacking

2.1 Contents

QTY PART # DESCRIPTION (1) 0005483 DSA230 or

0005480 DSA250 loudspeaker (1) 0005901 Instruction Manual (1) 0005854 1 ft Cat-5 Signal Link Cable RJ-45 to RJ-45 (wired as a crossover cable) (1) 005085 Neutrik® PowerCon™ NAC3FA in-line plug (3) 0005850 Phoenix Contact MSTB 2,5/3-STZ-5,08 3-pin in-line plug (2) 0006118 Enclosure Bracket (2) 102195 3/8-16 x 2 in Enclosure Bracket Bolt (2) 102035 1/4-20 x 3 in Retainer Bolt (2) 105011 3/8 in Lockwasher (2) 105004 1/4 in Lockwasher (2) 0006119 Wall Bracket (1) 0006103 DSA CD-ROM containing DSAPilot and other documentation (1) RD0084 DSA230 or

RD0085 DSA250 Wall Bracket Mounting Template (Printed on

Shipping-Carton)

2.2 Shipping Damage

After unpacking, if the loudspeaker is found to have shipping damage, save the packing materials for the carrier’s inspection, notify the carrier immediately, and file a shipping damage claim.

Although EAW will help in any way possible, it is always the responsibility of the receiving party to file any shipping damage claim. The carrier will help prepare and file this claim.

2.3 Returning Products to EAW

If the loudspeaker must be returned to EAW, contact the EAW Service Department for a Return Authorization (See Chapter 7). Use the original shipping carton and packing materials. If the shipping carton is lost or damaged, contact EAW for a new carton, for which there will be a small charge. EAW will not be responsible for damage caused by inadequate packing when returning the loudspeaker for service.

All units returned must have a factory return authorization number. Any units received without an Return Authorization Number assigned and written prominently on the outside of the carton will be refused.

Chapter 3 Quick Start

This section provides basic installation requirements. Refer to Chapter 5 for detailed instructions.

Loudspeaker refers to either a DSA230 or DSA250.

Cluster refers to any of the permissible arrangements of single or multiple

DSA230s or DSA250s as defined in DSAPilot. Whether they consist of a single or multiple loudspeakers, all DSA clusters function as a single loudspeaker.

3.1 Description

The EAW DSA Series loudspeakers are variable directivity, self-powered line arrays. EAW’s easy-to-use DSAPilot provides computer control for the loudspeaker’s vertical beamwidth pattern. This allows customizing the coverage on-site to fit the application. Loudspeakers are controlled via standard EIA-485* or optional CobraNet™/Ethernet networking. *Also known as RS-485 (Recommended Standard 485)

Model DSA250 is a full range loudspeaker. Model DSA230 can be employed as a voice-only loudspeaker or as low frequency loudspeaker to supplement a DSA250’s low frequency output and pattern control.

3.2 Audio Signal Connection

NOTE: Using the DSAPilot, the two input channels may be summed to mono, used separately, or set up for a priority override function: Audio B overrides Audio A. Equalization, compression, and level are separately adjustable for each input. Overall signal delay for each loudspeaker cluster is also provided.

Audio A and B (each): 2-conductor shielded audio cable/supplied

Phoenix Contact terminal block plug

3.3 Computer Control Connection

NOTE: Set the EIA-485 Terminate Switch to “ON”. For multiple loudspeakers, see Chapter 5.

EIA-485: 2-conductor shielded audio cable/supplied

Phoenix Contact terminal block plug

3.4 Daisy Chaining Audio and Computer Signal Between Loudspeakers

Distances up to 2 ft / 0.6 m are for connecting multiple loudspeakers in a single cluster while distances over 2 ft / 0.6 m are for connecting physically distributed clusters.

Up to 1 ft / 0.3 m: Supplied Cat-5 Signal Link Cable Connect between Signal Link jacks (Neutrik® EtherCon®) on vertically adjacent loudspeakers within a multi-loudspeaker cluster.

Up to 2 ft / 0.6 m: User-supplied, Cat-5 Ethernet crossover cable Connect between Signal Link jacks (Neutrik® EtherCon®) on horizontally adjacent loudspeakers within a multi-loudspeaker cluster.

Figure 3.2 Audio Connector

Figure 3.1 DSA230 & DSA250

Figure 3.3 EIA-485 Connector

Figure 3.4a Signal Links < 1 ft / 0.3

AUDIO –

AUDIO +

SIGNAL +

LINK CABLE P/N 0005854

SHIELD

SIGNAL–

SHIELD

Over 2 ft / 0.6 m: 2-conductor shielded audio cable / supplied Phoenix Contact terminal block plugs Connect Audio A, Audio B (if used), and EIA-485 in parallel daisy-chain fashion between clusters.

3.5 AC Mains Installation

3.5.1 AC MAINS SUPPLY

Provide the loudspeaker with a 50 Hz or 60 Hz AC Mains circuit capable of:

100 V to 120 V 220 V to 240 V DSA230 4 A 2 A DSA250 8 A 4 A

Before applying power, ensure that the AC Mains voltage matches the voltage rating on the loudspeaker.

3.5.2 AC MAINS CABLE

Supply and connect #14 AWG / 2.5 mm power cable and appropriate AC Mains plug to the supplied Neutrik/PowerCon® connector.

3.6 Physical Installation

3.6.1 ORIENTATION

1. When installing the enclosure, there is a correct “top” and “bottom”. This cannot be assumed from the physical appearance. Instead, orientation depends on application and desired acoustical performance determined using the DSAPilot.

2. Ensure the enclosure is oriented correctly by verifying which ends are supposed to be the top and bottom for the intended application. The Signal End is the end with the identification LED, visible on one end of the front of the enclosure. The Power End has the AC Mains connector.

Note: The desired coverage cannot be gained if the enclosure is incorrectly oriented.

3.6.2 MOUNTING

WARNING: Comply with all installation warnings in Section 5.5.1.

The DSA Series loudspeakers are normally intended to be flushmounted against a vertical surface capable of supporting their weight.

1. Using the template printed on the shipping box, locate and position the supplied Wall Brackets to structure.

Figure 3.4b Signal Links >2 ft / 0.6 m

Figure 3.5 Connecting AC Mains

LED INDICATOR

ON FRONT SURFACE

POWER END

SIGNAL END

AC MAINS CONNECTOR

Figure 3.6 Signal End / Power End

EIA-485

AUDIO A

AUDIO B

2. Attach the Wall Brackets to structure. You must provide attachment hardware and ensure the attachment method and structure are capable of supporting the intended load. Position the Wall Bracket weld nuts left or right to allow clearance for later insertion of the Retainer Bolt.

3. Ensuring they are oriented properly, install the two Enclosure

Brackets on the loudspeaker. Insert and hand-tighten the supplied 3/8-16 Enclosure Bracket Bolt and Lock Washer for each Enclosure Bracket.

4. Lift the enclosure onto the installed Wall Brackets.

WARNING: Use at least two people for lifting enclosure onto the brackets.

5. Insert and snugly tighten at least one of the supplied 1/4-20 Retainer

Bolt and Lock Washer through the side of either of the Wall and Enclosure Brackets. This prevents the enclosure from being lifted off the Wall Brackets.

6. Securely tighten each 3/8-16 Enclosure Bracket Bolt to lock the

enclosure at the desired horizontal angle.

3.7 Signal Processing

The vertical coverage is determined by programming the loudspeaker’s digital signal processing.

Use the DSAPilot to determine the desired coverage. The DSAPilot calculates and optimizes the signal processing required to achieve the desired results.

High pass/low pass filters, parametric EQ, delay, and gain are user adjustable for each of the two inputs.

2X 3/8-16 X 2 LG

Figure 3.6.2a Bracket Installation

Figure 3.6.2b Installed Bracket

Figure 3.7 DSAPilot Main Screen

BLACK HEX HEAD

ENCLOSURE BRACKET

BOLT & LOCK WASHER

2X ENCLOSURE

BRACKET P/N 0006118

1/4-20 X 3 LG

HEX HEAD

RETAINER BOLT

& LOCK WASHER

2X WALL BRACKET

P/N 0006119

Chapter 4 Description

4.1 System Overview

DSA Series loudspeakers are variable directivity, self-powered line arrays. Each loudspeaker’s vertical beamwidth is determined by the settings of an internal DSP (digital signal processor) and power amplifier for each transducer. This provides complete, on-site control over the range of possible vertical beamwidth patterns.

EAW’s Windows-based DSAPilot is used to set the coverage required for each loudspeaker or loudspeaker cluster. The user-friendly DSAPilot optimizes the required signal processing for the design. This data is then uploaded to the DSA Series loudspeakers in the system. The DSAPilot normally communicates with the loudspeakers using EIA-485*. An optional CobraNet™ network interface is available.

*Formerly known as RS-485 (Recommended Standard 485)

4.1.1 DSA SERIES MODELS

DSA250: Full range, 2-way, loudspeaker system DSA230: Low frequency and voice-only loudspeaker system

4.1.2 ACOUSTICAL BENEFITS

Each loudspeaker can be electronically adjusted on-site to direct sound primarily where needed. Unwanted sound reflections from room surfaces can be reduced, improving the direct to reverberant sound ratio. This, in turn, can significantly increase speech intelligibility. Asymmetrical pattern control can provide consistent SPL in situations with HIGH near-to-far listener distance ratios. User adjustable level control, equalization, and compression, are provided on each of the two audio inputs. For situations with multiple locations, overall signal delay for each loudspeaker cluster is also provided.

4.1.3 PHYSICAL BENEFITS

The DSA Series loudspeakers are physically narrow and quite shallow, providing a low profile to reduce their impact on architecture. Their normal mounting position is specifically designed to be flat against a vertical surface. This considerably reduces installation complexity. The DSA Series design permits several loudspeakers to be easily arrayed in one location as a cluster. This affords additional capabilities including higher output and extremely narrow vertical coverage, as well as extended pattern control, and output at lower frequencies.

DSA Series enclosures are constructed of a powder-coated, extruded aluminum body (also used as the amplifier heat sink), high-impact polystyrene end caps, a thick PVC baffle, and a finely perforated steel grille. This construction is designed for years of trouble-free use. The appearance is designed to blend attractively with a variety of architecture. The enclosure finish is a neutral white. The grille is powder-coated steel, with a perforation style that appears similar to a cloth grille at typical in-use distances. Installation hardware is included to facilitate installation in most applications.

Figure 4.1.1 DSA250 & DSA230

4.1.4 ELECTRICAL BENEFITS

Built in digital signal processing, power amplification, and protective limiting significantly reduces equipment costs, space, installation, and set-up adjustments. Cabling is limited to providing AC mains, line level audio, and computer control signals. EIA-485 or optional CobraNet™/Ethernet networking technology allows all loudspeakers in a project to be adjusted and controlled from one computer. EIA-485 network topology was chosen as the supplied default because it is easy to implement. It is also unique in allowing multiple network nodes to communicate bi-directionally over a single pair of twisted wires. No other network standard combines this capability with equivalent noise rejection, data rate, cable length, and general robustness.

4.2 Features

4.2.1 ACOUSTICAL

·Vertical beamwidth is software controlled on-site to fit the application

·Wide 120 degree fixed horizontal beamwidth

·Pre-determined templates for loudspeaker clusters provide a wide

range of capabilities

·DSA250 full-range loudspeaker has eight 4 in LF drivers, eight 1 in horn-loaded HF drivers

·DSA230 low frequency or voice-only loudspeaker has eight 4 in LF drivers

·Full frequency response and high output for music applications

·Extended pattern control and higher outputs at lower frequencies using additional DSA230’s

·Exceptional intelligibility for reverberant rooms

4.2.2 ELECTRONIC

· Self-powered requiring wiring for AC power, line level audio, and computer control

· No amplifier or processing racks needed, reducing space and cost

· Individual amplifier and DSP for each transducer

· Convection cooled electronics eliminates noisy cooling fans

· Built-in driver protection provides high reliability

· Two audio inputs allow summed stereo or priority announcement

override capability

· Electronically balanced inputs maximize the signal to noise ratio

4.2.3 COMPUTER CONTROL

· User-friendly DSAPilot software easily creates desired vertical coverage patterns

· DSP adjusted and optimized by DSAPilot for plug and play setup

· User adjustable input EQ, signal delay, level, HPF/LPF, and

compression for each loudspeaker cluster

· Computer can be disconnected for no-tamper operation

· Computer can be left connected for monitoring purposes

4.2.4 NETWORKING

· EIA-485 network for remote PC operation and computer control

· Analog audio and control signals can be daisy-chained to multiple

loudspeakers

EIA-485

Figure 4.1.4 DSA Block Diagrams

AUDIO A AUDIO B

INPUT DSP

DSP

AMP

DSA250

∑

EIA-485 AUDIO A AUDIO B

DSP

INPUT DSP

DSP

AMP

DSA230

AMP

∑

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

·Cat-5 Link Cable links adjacent loudspeakers.

·Optional CobraNet™ interface for digital distribution of audio and

computer control via Ethernet

·Provision for back up audio/computer communications using a redundant Ethernet network, when using CobraNet™.

4.2.5 PHYSICAL

· Phoenix Contact and Neutrik EtherCon and PowerCon connectors for reliable connections

· Low weight (<100 lb / 45 kg) reduces structural mounting requirements

· Mount vertically while providing asymmetrical down-angle coverage

· Brackets supplied for mounting to vertical surfaces

· Mounting allows +/-15 degree horizontal rotation of the enclosure.

· Optional hardware for suspending enclosures

· Elegant enclosure design and neutral color blends with a variety of

architecture

· Rear enclosure extrusion channels can be used to route cabling

4.3 Applications

The DSA Series provides a significant advance for cost-effective implementation of line array technology in a variety of applications. As is typical for line arrays, the DSA Series is an excellent choice for voice-only applications. However, unlike typical voice-only line arrays, the DSA Series can also provide the wide frequency range, fidelity, and output levels needed for excellent music reproduction. This significantly extends its range of applications to a wide range of venue types including theaters, theme parks, retail spaces, and government facilities. Its unique capabilities, however, make it particularly well suited to applications that present a challenging acoustical, physical, or aesthetic environment.

The DSA Series is ideal for a variety of venues where achieving good vocal intelligibility is critical. These include theatres, auditoria, houses of worship, theme parks, retail spaces, government facilities, lecture halls, large conference rooms, museums, and shopping malls. It can solve acoustically difficult challenges in reverberant environments such as cathedrals, concert halls, ballrooms, rail/air/sea terminals, large lobbies, and athletic buildings. Its low profile further enhances its applicability in aesthetically sensitive environments.

Designers can use DSA loudspeakers in a variety of factory-supported DSA cluster configurations to meet specific output or directivity needs. For voice-only applications, single DSA250 loudspeakers can be placed to provide adequate output and horizontal coverage. In these cases, designers enjoy control of the vertical pattern throughout the vocal range. For broadband music reproduction, the addition of a DSA230 to each DSA250 will extend pattern control well into the LF range and provide additional LF output.

Although the DSA Series is not specifically outfitted for outdoor installations, its exterior components are inherently weather-resistant. If suitably protected from direct exposure to weather, permanent outdoor installation is possible, though is not recommended.

4.4 Engineering Design

The core acoustical design of the DSA Series dates back to the late 1930s in Harry Olson’s book, “Acoustical Engineering”. He showed that, by using different signal delays on the input to each transducer in a simple line array, the array’s main output lobe could be effectively “steered”. While this concept has certainly been used before, the design of the DSA Series goes far beyond this simple concept.

The engineering design for the DSA Series is certainly capable of “steering” the main output lobe, as per Olson. However, the shape of the lobe in the vertical plane is also variable. This allows changing the depth of the coverage to precisely fit the listening area thereby reducing troublesome near-to-far SPL differences.

A major advantage of DSA is the character of its radiation pattern. Contrary to what might be intuitively assumed, the DSA’s radiation pattern is not the same as simply down-tilting a loudspeaker that has the same horizontal and vertical beamwidths. The example EASE plots illustrate this difference.

The radiation pattern of the conventionally, down-tilted loudspeaker has at least two problems. The geometry of the pattern results in inadequate coverage across the front area of the room. It also focuses a distinct line of energy along the side wall. This energy is nearly at the same loudness as the floor seating area. The sound reflections off the upper part of the wall will arrive at many listeners late enough to impair intelligibility. These reflections add to the direct sound and cause the higher intensity sound seen at the rear , even though these areas are further from the loudspeaker.

By contrast, the radiation pattern of the DSA loudspeaker is far more consistent across the entire floor area. The energy it directs to the sidewalls is not only lower in level, but creates a very different reflection pattern. The sound reflected off the wall will be largely directed down into the floor or nearby listeners along the sides, arriving early enough to actually enhance intelligibility.

Ver: 30° Hor: 120° Lspk: S1 Project: DSAMultipurpose-Tilt Map: Direct SPL Freq: 5000 Hz [Third Octave Average] Shadow Cast: No Resolution = 1.0 m

Ver: 30° Hor: 120° Lspk: S1 Project: DSAMultipurpose-Steer Map: Direct SPL Freq: 5000 Hz [Third Octave Average] Shadow Cast: No Resolution = 1.0 m

Figure 4.4a Angled Radiation Pattern

Figure 4.4b DSA Steered Radiation Pattern

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