EAW DSA250i, DSA230i User Manual

DSA250i & DSA230i LOUDSPEAKER OWNER’S MANUAL

DSAi Series Owner’s Manual

Congratulations on the purchase of your new EAW loudspeaker. You now own one of the finest professional audio products available - the result of exceptional engineering and meticulous craftsmanship. Please read these instructions to get the maximum performance from your new loudspeaker.

SAFETY PRECAUTIONS - READ THIS FIRST

SAFETY INSTRUCTIONS

Read and heed all warnings and safety instructions in the accompanying "EAW Loudspeaker Manual" before using this product. Failure to follow this precaution may result in equipment damage, personal injury, or death.

WARNING: The loudspeaker is supplied with an ac mains power cable. Depending on the voltage model ordered, this cable is configured with the most common ac mains connector for that voltage. If the connector is not compatible with the local ac mains receptacle, employ a licensed electrician to re-configure the cable with the proper connector. Ensure that ac power supply has a properly grounded safety ground. Failure to follow this warning could cause equipment damage, injury, or death.

CONSIGNES DE SÉCURITÉ - À LIRE EN PREMIER

INSTRUCTIONS RELATIVES À LA SÉCURITÉ

Lisez et respectez toutes les consignes de sécurité et les mises en garde fournies dans le manuel des enceintes EAW avant d'utiliser ce produit. Le non-respect de ces consignes et mises en garde peut entraîner des dommages aux équipements et des accidents aux personnes pouvant être fatals.

ATTENTION: L'enceinte est fournie avec un cordon secteur. Selon la tension du modèle commandé, ce câble est fourni avec la fiche la plus communément utilisée avec cette tension. Si la fiche n'est pas compatible avec les prises secteur de votre région, faites appel à un électricien agréé pour modifier le cordon secteur en fonction du format local. Vérifiez que la fiche secteur dispose d'une mise à la terre. Le non-respect de la mise à la terre peut entraîner des dommages aux équipements et des accidents aux personnes pouvant être fatals.

PRECAUZIONI DI SICUREZZA - DA LEGGERE PER PRIMO

NORME DI SICUREZZA

Prima di procedere con l'utilizzo del prodotto, leggere e rispettare ogni avvertenza e norma di sicurezza riportata nel "Manuale EAW Loudspeaker". Il mancato rispetto di ogni precauzione può causare danni all'apparecchiatura, nonché infortuni alle persone o la morte.

ATTENZIONE: Il diffusore è completo di cavo d'alimentazione ac fornito in dotazione. In base la voltaggio del modello di diffusore acquistato, il cavo è configurato con il connettore ac più adeguato. Nel caso in cui il connettore non sia compatibile con le prese di corrente adottate nell'area d'impiego, rivolgersi ad un elettricista qualificato per ri-configurare il cavo con il connettore più appropriato. Assicurarsi che la presa di corrente sia adeguatamente collegata a terra. Il mancato rispetto di tali norme può causare danni all'apparecchiatura, nonché infortuni alle persone o la morte.

PRECAUCIONES DE SEGURIDAD - LEA ESTO PRIMERO

INSTRUCCIONES DE SEGURIDAD

Lea y observe todos los avisos e instrucciones de seguridad que aparecen en el "Manual de altavoces EAW" adjunto antes de usar este aparato. El no observar esta precaución puede dar lugar a averías en el aparato, daños en las personas o incluso la muerte.

PRECAUCION: El altavoz viene de fábrica con un cable de corriente. Dependiendo del voltaje que use el modelo solicitado, este cable estará configurado con el enchufe más habitual para ese tipo de corriente. Si ese enchufe no es compatible con su salida de corriente, contacte con un electricista profesional para que cambie el enchufe del cable por el tipo adecuado. Asegúrese de que la salida de corriente tenga una conexión a tierra adecuada. El no observar esta advertencia puede dar lugar a averías en el aparato, daños en las personas o incluso la muerte.

SICHERHEITSHINWEISE - LESEN SIE DIESEN ABSCHNITT ZUERST

SICHERHEITSANWEISUNGEN

Lesen und beachten Sie alle Warnungen und Sicherheitsanweisungen der mitgelieferten "EAW Lautsprecher Bedienungsanleitung" vor der Benutzung des Produkts. Nichtbeachtung dieser Hinweise können möglicherweise zu Schäden am Equipment oder zu Verletzungen bzw. zum Tod von Personen führen.

WARNUNG: Der Lautsprecher wird mit einem Netzkabel geliefert. Abhängig von der jeweiligen Netzspannung wird das Kabel mit dem für die jeweilige Netzspannung gängigsten Netzstecker ausgeliefert. Sollte der Netzstecker nicht in Ihre Netzsteckdose passen, dann lassen Sie von einem zugelassenen Elektrobetrieb einen passenden Netzstecker montieren. Stellen Sie sicher, dass der Schutzkontakt der Netzsteckdose einen guten Kontakt zur Erde hat. Nichtbeachtung dieser Hinweise können möglicherweise zu Schäden am Equipment oder zu Verletzungen bzw. zum Tod von Personen führen.

EC DECLARATION OF CONFORMITY

Eastern Acoustic Works, as the manufacturer, hereby certifies that, in their delivered versions, Product Models: DSA230i and DSA250i Product Description: Self-powered loudspeaker comply with the provisions of the standards listed below.

European Council Directive on Restriction of Hazardous Substances, 2002/95/EC

European Council Directive on Low Voltage, 73/23/EEC

European Council Directive on Electromagnetic Compatibility 89/336/EEC and 93/68/EEC EN 50081-1:1992 Emissions limits for residential, commercial, and light industrial equipment (generic standard) EN 50082-1:1997 Immunity requirements for residential, commercial, and light industrial equipment (generic standard)

Harmonized Standards: EN55103-1 emissions EN55103-2 immunity EN60065 safety

The Technical Report/File is maintained at: LOUD Technologies Inc. Worldwide Headquarters 16220 Wood-Red Road NE Woodinville, WA 98072 USA Tel: +1 425 892 6500 Tel: +1 866 858 5832 Fax: +1 425 487 4337 e-mail: info@eaw.com

Authorized Representative: Kevin Cyrus Director of Compliance Loud Technologies, Inc.

Issued: April, 2006

iii

CONTENTS

Safety Precautions - Read This First . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i

EC Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Chapter 2 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Shipping Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.3 Returning Products to EAW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Chapter 3 Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.2 Audio Signal Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.3 Computer Control Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.4 Daisy Chaining Audio and Computer Signal

Between Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.5 AC Mains Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.5.1 AC Mains Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.5.2 AC Mains Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.6 Physical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.6.1 Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.6.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.7 Signal Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Chapter 4 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.1 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.1.1 DSAi Series Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.1.2 Acoustical Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.1.3 Physical Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.1.4 Electrical Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.2.1 Acoustical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.2.2 Electronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.2.3 Computer Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.2.4 Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.2.5 Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.4 Engineering Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.5 DSAPilot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.6 Low Frequency Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.7 Comparison to Traditional Products . . . . . . . . . . . . . . . . . . . . . . . 12

4.8 Designing DSAi Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Chapter 5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.1 Analog Audio and EIA-485 Computer Control . . . . . . . . . . . . . . . 13

5.1.1 Cable Routing Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.1.2 Audio Signal Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.1.3 Computer Control Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.1.4 Daisy Chaining Computer and Audio Signals

Within Clusters with Multiple Modules . . . . . . . . . . . . . . . . . . . . 14

5.1.5 Daisy Chaining Computer and Audio Signals

Between Clusters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.1.6 EIA-485 Terminate Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.2 CobraNet Audio and Computer Control . . . . . . . . . . . . . . . . . . . . 16

5.2.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.2.2 CobraNet is Usually Desirable To Use When . . . . . . . . . . . . . . . . 16

5.2.3 Additional Equipment You Must Supply For CobraNet . . . . . . . . . 16

5.2.4 Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.2.5 Audio/Computer Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.2.6 Module Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.2.7 Multiple Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.2.8 Support For CobraNet/Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.3 Fault Detect - Supervisory Monitoring . . . . . . . . . . . . . . . . . . . . . 18

5.3.1 Fault Detect Relay Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.3.2 Fault Detect Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.3.3 Supervisory Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.4 AC Mains Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.4.1 AC Mains Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.4.2 AC Mains Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.4.3 Power On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.4.4 AC Mains Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.5 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.5.1 Electrical Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.5.2 Audio Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.6 Physical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.6.1 Installation Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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

5.6.3 Multiple Modules and Cluster Configurations . . . . . . . . . . . . . . . 23

5.6.4 Installation Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.6.5 Angling Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.6.6 Mounting Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.6.7 Wall Bracket Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.6.8 Enclosure Bracket Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.6.9 Enclosure Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.7 Initial Set-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.7.1 Verify Module Orientation and Position . . . . . . . . . . . . . . . . . . . . 27

5.8 Acoustical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Chapter 6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.1 Operational Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.1.1 Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.1.2 LED Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.1.3 Signal Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6.2 Operational Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.3 Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.3.1 Powering Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.3.2 Signal Processing Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.3.3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.4 Operational `DOS’ and `DONT'S’ . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.4.1 Equalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.4.2 Maximum Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.4.3 Frequency Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.4.4 Input Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.4.5 DSAPilot Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Chapter 7 Maintenance and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.1 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.2 Service Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.3 How to Contact EAW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.3.1 Operating Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.3.2 Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.3.3 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Chapter 8 Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

8.1 Inspections and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

8.1.1 Periodic Physical Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

8.1.2 Performance Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

8.1.3 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

8.2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

8.3 EIA-485 Network Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

8.3.1 Cabling Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

8.3.2 Termination Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

8.4 Support For Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

8.5 Support For CobraNet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

8.6 DSAi Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8.6.1 Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8.6.2 DSAPilot Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8.6.3 EIA-485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

8.6.4 EIA-485 Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

8.6.5 Proper DSAi Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

8.6.6 Avoiding Communication Loops . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8.6.7 Avoiding Stubs and Correct 120 ohm Termination . . . . . . . . . . . . 43

Chapter 9 Mechanical Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

9.1 DSA230i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

9.2 DSA250i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

9.3 Wall Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Chapter 1 Introduction

The DSA250i full-range and DSA230i voice-only or low frequency system are small format, column-type loudspeaker systems with a user-variable vertical beamwidth. The loudspeakers, known as modules herein, can be used as singly or combined in multiples as clusters. The easy-to-use DSAPilot software allows accurate adjustment of a module's or a clusters's coverage area from a fixed, vertical mounting location. In addition to excellent vocal performance, the DSAi Series is fully capable of full-range music applications. With integral DSP (digital signal processing) and amplification, DSAi modules are economical and simple to use. Computer communications are via EIA-485 or optional CobraNet™ network.

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

Chapter 2 Unpacking

2.1 Contents

QTY PART # DESCRIPTION (1) * DSA230i or DSA250i loudspeaker

* Part number varies with finish color and ac mains voltage (1) 425017 EAW Loudspeaker Owner’s Manual (1) RD0370 DSAi Owner’s 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 (4) 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 Lock Washer (2) 105004 1/4 in Lock Washer (2) 0006119 Wall Bracket (1) 0017797 DSA CD-ROM containing DSAPilot and other documentation (1) RD0084 DSA230 Series or

RD0085 DSA250 Series 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 a 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.

Module refers to either a DSA230i or DSA250i loudspeaker.

Cluster refers to any of the permissible arrangements of single or multiple DSA230i or DSA250i modules as defined in DSAPilot. Whether they consist of a single or multiple modules, all DSAi clusters function as a single loudspeaker.

3.1 Description

DSAi modules are variable directivity, self-powered line arrays. EAW’s easy-to-use DSAPilot provides computer control for the module’s vertical beamwidth pattern. This allows customizing the coverage on-site to fit the application. Modules are controlled via standard EIA-485* or optional CobraNet™/Ethernet networking.

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

Model DSA250i is a full range module. Model DSA230i can be employed as a voice-only module or as low frequency module to supplement a DSA250i’s low frequency output and pattern control.

3.2 Audio Signal Connection

NOTE: Using 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 module and cluster is also provided.

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

Phoenix Contact terminal block plug

Figure 3.2 Audio Connector

Figure 3.1 DSA230i & DSA250i

AUDIO

–

AUDIO +

SHIELD

3.3 Computer Control Connection

NOTE: Set the EIA-485 Terminate Switch to “ON”. For multiple modules, 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 Modules

Distances up to 2 ft / 0.6 m are for connecting multiple modules 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 modules within a multi-module 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 modules within a multi-module cluster.

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 module with a 50 Hz or 60 Hz ac mains circuit capable of:

100 V to 120 V 220 V to 240 V

DSA230i and DSA250i 4 A 4 A

Before applying power, ensure that the ac mains voltage matches the voltage rating on the module.

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

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.

Figure 3.3 EIA-485 Connector

Figure 3.4a Signal Links < 1 ft / 0.3 m

Figure 3.4b Signal Links >2 ft / 0.6 m

Figure 3.5 Connecting AC Mains

EIA-485 DATA A

EIA-485 DATA B

LINK CABLE P/N 0005854

EIA-485

SHIELD

AUDIO A

AUDIO B

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 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 achieved if the enclosure is incorrectly oriented.

3.6.2 MOUNTING

WARNING: Comply with all installation warnings in Section 5.6.1.

The DSAi Series modules are normally intended to be flush-mounted 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.

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 module. 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.

Figure 3.6.2a Bracket Installation

Figure 3.6.2b Installed Bracket

LED INDICATOR

ON FRONT SURFACE

POWER END

SIGNAL END

AC MAINS CONNECTOR

Figure 3.6 Signal End / Power End

2X 3/8-16 X 2 LG

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

3.7 Signal Processing

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

Use DSAPilot to determine the desired coverage. 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.

Chapter 4 Description

4.1 System Overview

DSAi modules, are variable directivity, self-powered line arrays. Their 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 module or cluster. The user-friendly DSAPilot optimizes the required signal processing for the design. This data is then uploaded to the DSAi Series modules in the system. DSAPilot normally communicates with the modules using EIA-485*. An optional CobraNet network interface is available.

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

4.1.1 DSAiSERIES MODELS

DSA250i: Full range, 2-way, module DSA230i: Low frequency and voice-only module

Figure 3.7a DSAPilot Main

Figure 4.1.1 DSA250i & DSA230i

Figure 3.7c DSAPilot EQ / Monitor Figure 3.7b DSAPilot Steering

4.1.2 ACOUSTICAL BENEFITS

Each module 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. Signal delay is provided for multiple module locations.

4.1.3 PHYSICAL BENEFITS

The DSAi Series modules 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. Several modules to be easily arrayed in one location as a cluster. This affords additional capabilities including higher output, extremely narrow vertical coverage, extended pattern control, greater LF output.

DSAi 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 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.

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 modules 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 cluster configurations provide a wide range of capabilities.

· DSA250i full-range module has eight 4 in LF drivers, eight 1 in horn-loaded HF drivers.

· DSA230i low frequency or voice-only module has eight 4 in LF drivers.

EIA-485

Figure 4.1.4 DSAi Block Diagrams

AUDIO A

AUDIO B

INPUT DSP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSA250i

DSP

AMP

EIA-485 AUDIO A

AUDIO B

INPUT DSP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSP

AMP

DSA230i

· Full frequency response and high output for music applications.

· Extended pattern control and higher outputs at lower frequencies using additional DSA230is.

· 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 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 modules.

· Cat-5 Link Cable links adjacent modules.

· 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 DSAi 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 DSAi Series is an excellent choice for voiceonly applications. However, unlike typical voice-only line arrays, the DSAi 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 DSAi 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 DSAi modules in a variety of factory-supported DSAi cluster configurations to meet specific output or directivity needs. For voice-only applications, single DSA250i modules 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 DSA230i to each DSA250i will extend pattern control well into the LF range and provide additional LF output.

Each DSAi module has a FAULT DETECT interface allowing an external supervisory circuit to monitor the module's operational status. Multiple DSAi modules can be connected to a single supervisory circuit so that any one module will trigger the supervisory circuit's fault alarm.

4.4 Engineering Design

The core acoustical design of the DSAi 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 DSAi Series goes far beyond this simple concept.

Rather than simply steering the vertical lobe, the shape of this lobe in the vertical plane is also made variable. This allows changing the depth of the coverage to precisely fit the listening area thereby reducing troublesome near-to-far SPL differences.

The digital signal processing involves parametric equalization, micro signal delays, sophisticated frequency filtering, gain, and limiting. These parameters are individually adjusted by DSAPilot for each transducer in each module. The available DSP resources provide a broad range of possible coverage patterns and SPL control over distance as well as the voicing required for exceptional music reproduction.

Multiple DSAi modules arrayed as a cluster at a single location allows a greater range of beamwidths, SPL, pattern control, and low frequency output than a single DSAi module can provide. DSAPilot treats the cluster as if it were a single loudspeaker, precluding the complexities normally associated with designing and tuning clusters.

The major advantage of DSAi its radiation pattern which is quite different than simply angling down a loudspeaker with the same horizontal and vertical beamwidths. The example EASE plots illustrate the differences. While the angled loudspeaker is a line array, the behavior of a conventional horn would be quite similar.

The radiation pattern of the angled loudspeaker has several problems that would reduce intelligibility. There is inadequate coverage across the front area of the room and it focuses a distinct line of energy along the front and side walls at nearly the same loudness as the floor seating area. The energy reflecting off these surfaces would arrive at many listeners late enough to impair intelligibility. It would also be reflected around to other surfaces, energizing the reverberant field and decreasing the direct-to-reverberant ratio. Some of these reflections add to the direct sound causing the highest intensity sound to be at the rear, even though further from the loudspeaker.

By contrast, the radiation pattern of the electronically steered DSAi is far more consistent across the entire floor area. Not only is less energy directed at the walls, but the reflection pattern would be quite different, primarily directed down towards floor or to nearby listeners, arriving early enough to actually enhance intelligibility.

DSAi’s steering algorithms are also designed to provide a smooth offaxis pattern instead of the distinct and undesirable off-axis lobes characteristic of line arrays. Such lobes can be seen in the conventional line array as the V-shaped pattern of spots in front of the stage.

Figure 4.4a Angled Radiation Pattern

Figure 4.4b DSAi Steered Radiation Pattern

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

4.5 DSAPilot

DSAPilot, used to set the module signal processing parameters, is based on software originally developed by EAW engineers for the KF750, KF760, and, in particular, the KF900 Series products. These products required precise but variable pattern control and a high degree of fidelity for speech and music in projects that range from small houses of worship to the newest super-stadiums. Sophisticated mathematical algorithms were developed to calculate the signal processing to achieve these results for both multiple transducers and multiple module clusters. Thoroughly tested and refined in successful, real-world applications, these techniques have been applied to the DSAi Series to achieve the same high degree of pattern control, musicality, and ease of setup.

Though highly complex, DSAPilot’s mathematics work behind the scenes. DSAPilot is highly user-friendly, making the signal processing adjustments deceptively simple. In fact, no acoustical knowledge is required to set up and adjust DSAi Series modules. The only information needed for DSAPilot to perform its magic is the module mounting location, and desired coverage area.

4.6 Low Frequency Performance

While the DSA250i is designed as a full-range module, addition of the companion DSA230i increases directionality and output at lower frequencies. Directional control is increased in classical line array fashion by extending the length of the overall array by mounting the DSA230i in line with a DSA250i to form a longer line of low frequency transducers. In addition, the increased number of low frequency transducers couple to increase the low frequency output capability.

4.7 Comparison to Traditional Products

A major benefit of the DSAi Series is achieving desired down angle coverage from a line source that is mounted flat to a vertical surface. The inclusion of power amplifiers and dedicated signal processing to each transducer provide the DSAi Series with performance and capabilities well beyond those of typical multi-way loudspeakers and traditional, voice-range line arrays. The DSAi Series can provide much better directional control, higher output, and wider frequency response. Significantly smaller sizes and weights, plus straightforward mounting and wiring options pay additional benefits in reduced installation costs and operation. The flexibility of DSAPilot to automatically optimize the acoustical performance for multiple DSAi Series modules in a single larger space further enhances their advantage over traditional solutions.

4.8 Designing DSAi Systems

DSAi modules can be used individually, in multiples, or in various cluster configurations to satisfy a wide range of design requirements. By using different configurations, DSAi performance can be varied according to the type of audio program, the frequency range for the vertical control desired, the maximum output levels, the audience location relative to the module, and for meeting the requirements for special applications.

+ 36 hidden pages