bittner XB400, XB800, XB1600, XB2500, XV400 User Manual

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Application Handbook

Complete Edition

Bittner Audio Int. GmbH

http://www.bittner-audio.com

Version 2.3.1

March 3, 2016

Page 2

Contents

1 General Information 6

1.1 Copyright & Acknowledgment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.3 European Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.4 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.5 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.6 Warranty Terms & Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.7 Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.8 Air Ventilation & Cooling Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.9 Installation in Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.10 Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2 Technical Features 10

2.1 AC Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2 Backup Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3 Remote Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.3.1 Control Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.3.2 SXL II & RS–485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.4 LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.4.1 Frontside . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.4.2 Backside . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.5 Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.5.1 Analog Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.5.2 Digital Level Control (with stop) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.5.3 Digital Level Control (endless) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.6 Audio Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.6.1 PHOENIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.6.2 XLR /TRS Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.7 Ground Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.8 Loudspeaker Output Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.8.1 PHOENIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.8.2 SPEAKON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.8.3 Binding Post . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.9 Operation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.9.1 Stereo Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.9.2 Parallel Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.9.3 Bridged Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.10 Alive Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.11 Data Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.11.1 I2C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.11.2 RS–485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.12 Address-IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.13 Noise Gate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.14 EQ Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.15 Line Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3 Speciﬁcations of the Devices 23

3.1 BASIC Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.1.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.1.3 Front & Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.2 XB Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.2.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.2.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.2.3 Front & Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.2.4 Jumper and Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.3 XV Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.3.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

 2016 Bittner Audio Int. GmbH

Contents

3.3.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.3.3 Front & Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

3.3.4 Jumper and Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

3.4 XV DC Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.4.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.4.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.4.3 Front & Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

3.4.4 Multifunction Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.4.4.1 Audio Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.4.4.2 Remote Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.4.4.3 Power Supply Fault Indication . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.4.5 DIP Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3.5 XR Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.5.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.5.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.5.3 Front & Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3.5.4 Digital Signal Processor (DSP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

3.5.5 Control by RS–485 and PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

3.5.6 Emergency Paging Bus & Monitor Bus . . . . . . . . . . . . . . . . . . . . . . . . . . 38

3.6 4X Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

3.6.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

3.6.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

3.6.3 Front & Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

3.6.4 Jumper and Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

3.7 4Xi/4Xe Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

3.7.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

3.7.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

3.7.3 Front & Rear View 4Xi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3.7.4 Front & Rear View 4Xe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3.7.5 Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

3.7.6 Loudspeaker Output Connectors 4Xe . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

3.7.7 Clip Limiter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

3.7.8 DanteTMInputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

3.7.9 DIP Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

3.8 4X DUAL Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

3.8.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

3.8.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

3.8.3 Front & Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

3.8.4 Jumper and Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

3.9 4DXV Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

3.9.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

3.9.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

3.9.3 Front & Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

3.10 8X Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

3.10.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

3.10.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

3.10.3 Front & Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

3.10.4 Jumper and Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

3.11 XT Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

3.11.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

3.11.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

3.12 8XT Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

3.12.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

3.12.2 Front & Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

3.13 AX16 - Intelligent Ampliﬁer Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

3.13.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

3.13.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

3.13.3 Front & Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

3.13.4 LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

3.13.5 Conﬁguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

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Contents

3.13.5.1 Switching Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

3.13.5.2 Connected Ampliﬁers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

3.13.5.3 Logic of Alive Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

3.13.5.4 Control Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

3.13.6 Connection of Ampliﬁers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

3.13.6.1 Signal and Ampliﬁer Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . 64

3.13.6.2 Ampliﬁer Outputs and Loudspeakers . . . . . . . . . . . . . . . . . . . . . 65

3.13.6.3 Alive Contact of the Ampliﬁers . . . . . . . . . . . . . . . . . . . . . . . . . 65

3.13.7 Data Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

3.13.8 Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

3.13.9 Alive and Active Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

3.13.10 Application Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

3.13.10.1 Mode 7+1 with Alive Contacts . . . . . . . . . . . . . . . . . . . . . . . . 68

3.13.10.2 Mode 3+1 with SXL II and Alive Contacts . . . . . . . . . . . . . . . . . . 69

3.13.10.3 Mode 3+1 with 4 Channel Ampliﬁers and Alive Contacts . . . . . . . . . . 70

3.14 SXL II - Control Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

3.14.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

3.14.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

3.14.3 Front and Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

3.14.4 Starting Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

3.14.4.1 Network Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

3.14.4.2 Connection of the Ampliﬁers and the AX16 . . . . . . . . . . . . . . . . . . 73

3.14.4.3 Address IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

3.14.4.4 Settings of Network Parameters . . . . . . . . . . . . . . . . . . . . . . . . 75

3.14.5 LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

3.14.6 Special Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

3.14.6.1 Logical Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

3.14.6.2 Signalization Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

3.14.6.3 General Purpose Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

3.14.6.4 Signal Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

3.14.7 Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

3.14.7.1 Menus & Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

3.14.7.2 Entry & Service Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

3.14.7.3 Saving and Loading of Conﬁgurations . . . . . . . . . . . . . . . . . . . . . 79

3.14.8 Web Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

3.14.8.1 Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

3.14.8.2 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

3.14.8.3 DSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

3.14.8.4 Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

3.14.8.5 Signalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

3.14.8.6 Conﬁgurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

3.14.8.7 AX16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

3.14.8.8 Misc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

3.14.8.9 Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

3.14.8.10 Home . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

3.14.9 Special Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

3.14.9.1 Conﬁguration Switching via the Logic Inputs . . . . . . . . . . . . . . . . . 89

3.14.9.2 Error Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

3.14.9.3 Line Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

3.14.9.4 Error Acknowledgment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

3.14.9.5 Backup Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

3.14.9.6 Permanent Backup of Operation Modes . . . . . . . . . . . . . . . . . . . . 93

3.14.10 Software & Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

3.14.10.1 FTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

3.14.10.2 Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

3.14.10.3 System Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

3.14.10.4 Web Interface (Files) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

3.14.10.5 Conﬁgurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

3.14.10.6 Logbook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

3.14.11 Ampliﬁer Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

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Contents

Page 5

3.14.12 Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

4 General Technical Information 99

4.1 Decibel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

4.2 100 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

4.3 Measuring Ampliﬁer Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

4.4 Heat Dissipation and Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

4.5 Sound Pressure and Ampliﬁer Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

4.6 Essentials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

4.6.1 Load-to-Power Relation in 100 V Systems . . . . . . . . . . . . . . . . . . . . . . . . 103

4.6.2 Crest Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

4.6.3 Resistance - Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

4.6.4 Voltages in dBV and dBu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

4.6.5 „dB“-Relations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

4.6.6 Conversion of THD to „dB below signal level“ . . . . . . . . . . . . . . . . . . . . . . 104

4.6.7 Voltage to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

5 Technical Data 105

6 Troubleshooting 107

List of Figures 108

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Page 6

1 General Information

1.1 Copyright & Acknowledgment

Bittner Audio reserves speciﬁcation privileges Information in this manual is subject to change without notice.

Congratulations and thank you for buying Bittner Audio.

1.2 Declaration of Conformity

Bittner Audio hereby declares that this product is in accordance with the following standards:

• LVD Directive 2006/95/EC

• EMC Directive 2004/108/EC

• EN 60065: 2002 + A1: 2006 + A11: 2008 + A2: 2010 + Al2: 2011

• EN 60950–1: 2006 + A11: 2009 + A1: 2010 + A12: 2011 + A2:2013

• EN 55022: 2010

• EN 50130–4: 2011

• EN 50121–4: 2006

• EN 61000–3–2: 2006 + A1: 2009 + A2: 2009

• EN 61000–3–3: 2013

• EN 61000–6–2: 2005

• EN 61000–6–4: 2007 + A1: 2011

1.3 European Directives

Bittner Audio also declares that the products are in compliance with the requirements of the European Directives 2002/96/EC (WEEE) and 2002/95/EC (RoHS).

The primary aim of the WEEE Directive and RoHS Directive is to reduce the impact of disposal of electrical and electronic equipment at end-of-life. The WEEE Directive aims to reduce the amount of WEEE sent for disposal to landﬁll or incineration by requiring producers to arrange for collection and recycling. The RoHS Directive bans the use of certain heavy metals and brominates ﬂame retardants to reduce the environmental impact.

1.4 Disclaimer

In no case shall Bittner Audio be liable for any special, incidental, or consequential damages to loudspeakers, ampliﬁers, or other equipment if such damages are based upon negligence during installation or operation. Such damages include, but are not limited to, loss of proﬁts or any other loss of property of the purchaser. In case the contractual liability of Bittner Audio is excluded or limited, this also applies to the personal liability of employees, representatives, assistants and other auxiliary persons.

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1 General Information Page 7

Should any part of the equipment show defects in materials and workmanship, including transport damage, the customer is asked to complain to Bittner Audio. Failure of complaint, however, has no consequences for your legal claims.

Bittner Audio points out that all speciﬁcations may be subject to change without notice and that liability for incorrect, incomplete or outdated information is excluded. This warranty does not affect your statutory rights.

Caution

International: Please contact your supplier for speciﬁc regional information, as rights and disclaimers may vary from country to country.

1.5 Safety Instructions

Caution

To reduce the risk of electrical shock, do not remove the cover. There are no user serviceable parts inside, refer all servicing to qualiﬁed personnel. Replace fuses only with same type. Avoid damaging the AC plug or cord. Damage may potentially cause a shock hazard. The apparatus should only be connected to an AC power supply of the correct voltage. Never isolate the ground of the AC power cord (the non-fused earthed protective conductor) to eliminate hum-problems. To reduce the risk of ﬁre or electrical shock, do not expose this apparatus to rain or moisture and don’t use it in damp areas or near water. The apparatus shall not be exposed to dripping or splashing water and no objects ﬁlled with liquids shall be placed on the apparatus. The apparatus must be adapted slowly to extreme temperature changes. These extreme changes can cause inside moisture development that can cause failure and/or electrical shock. The power fuses are located on the back panel of the apparatus and may be accessed from the outside. Use only the appropriate fuses as labeled. Always use safe operating techniques! Incompetent and improper servicing will void the warranty. Though all Bittner Audio devices are quite simple to operate and are covered by a solid steel chassis, improper use may be dangerous. Some of the units can put out very high voltages and a sizable current at frequencies up to 30 kHz. Any connections to the speaker terminals marked with a „lightning symbol“ shall be made only by an instructed person.

Figure 1.1: Lightning Symbol

1.6 Warranty Terms & Conditions

Bittner Audio warrants this product to be free from defects in materials and workmanship.

Should any part of this equipment be defective, the Manufacturer agrees to repair or replace any defective part free of charge (except transportation charges) for a period of three years from the date of the original purchase.

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Warranty service is effective and available to the original purchaser only.

To obtain service under this warranty, the product must, on discovery of the defect, be properly packed and shipped to the nearest Bittner Audio dealer. The party requesting service must provide proof of original ownership and date of purchase of the product.

If the warranty is valid, Bittner Audio will, without charge for parts or labor, either repair or replace the defective parts. Without a valid warranty, the entire cost of the repair is the responsibility of the product’s owner.

The warranty does not cover defects or repairs needed as a result of:

1. Damage caused by abuse, accident, or negligence.

2. Damage caused by any tampering, alteration, or modiﬁcation of the product or its components.

3. Damage caused by failure to maintain and operate the product in strict accordance to the written instruction of this operating manual.

4. Damage caused by repairs or attempted repairs by unauthorized persons.

5. Damage caused by ﬁre, water and other natural events.

6. Damage caused by operation on improper voltages.

1 General Information

1.7 Packaging

Upon unpacking, please inspect the product. If you ﬁnd any damage, notify your supplier immediately. Be sure to save the carton and all packing materials in case you have to send the product to the supplier.

Please use only the original factory packing. If the shipment carton is unavailable, contact Bittner Audio International GmbH (www.bittner-audio.com) to obtain a replacement.

1.8 Air Ventilation & Cooling Requirements

The devices are equipped with a forced air-cooling system with variable speed and temperature controlled fans to guarantee low operating temperature and minimal ventilation noise. The air ﬂow takes place from the rear to the front of the ampliﬁer. The air-pulling fans are installed on the back side of the unit. The air ﬂow is always from the front to the rear side.

In case a heat sink becomes too hot, the temperature sensor opens the respective output relay, disconnecting the output load from the particular channel. In case the power transformer gets overheated, a different sensor causes the output relays on all channels to open and to interrupt the outputs. After cooling down to an appropriate operating temperature level the relay contacts are closed again automatically.

It is important to have adequate air ventilation space behind the ampliﬁer to allow a proper air ﬂow. In case the ampliﬁer is mounted inside a closed rack, do not cover the front of the rack with doors. If using racks with a closed backside, use fans on the rear rack panel. Bittner Audio recommends one open rack space for every 2 mounted power ampliﬁers.

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1 General Information Page 9

1.9 Installation in Rack

All devices will mount in standard 19-inch racks having sufﬁcient depth and should be mounted with four standard rack bolts. To avoid the deformation of the chassis it is recommended to mount heavy units on horizontal brackets.

Please ensure a sufﬁcient airﬂow. In the case, closed racks are being used rack-fans should be used. For larger installations one open rack space (1 RU) for every 2 mounted power ampliﬁers should be provided.

1.10 Power Connection

The power ampliﬁer must be connected only with the attached three-wire safety power cord with protective conductor (non-fused earthed conductor).

This ampliﬁer is made for use with the mains voltage labeled on the back of the ampliﬁer only. Check the label on the back panel of the ampliﬁer for the appropriate voltage. Make sure the voltage of your mains outlet is correct. The power voltage is factory set as labeled on the back panel and cannot be changed afterwards. Damage caused by connecting the ampliﬁer to improper AC voltage voids the warranty.

Caution

Never isolate the ground of the AC power cords (the non-fused earthed protective conductor) to eliminate hum-problems.

Always turn off and disconnect the ampliﬁer from the mains voltage before making any audio connections. As a precaution, turn the audio attenuators on the front panel down during powering up.

The power fuses are located on the back panel of the ampliﬁer and can be accessed from the outside. Use only the appropriate fuses as labeled.

After properly mounting and connecting the AC cord and the audio connections, the unit can be switched on.

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2 Technical Features

2.1 AC Power Switch

If the remote switching option is not being used, the device must be switched on and off with the main power switch.

Caution

The ampliﬁer unit is only fully disconnected from the mains voltage by unplugging the power cord.

To use the remote power switching option, the main power switch must be set as follows:

Ampliﬁer Position

XB 400/800 Off XB 1600/2200 On XV Off XV DC On XR DSP Off 4X On 4Xi On 4Xe On 4X DUAL Off 4DXV On 8X Off

2.2 Backup Power

The ampliﬁers of the the XV DC and 4DXV Series are equipped with a 24 V backup power supply. In case of a loss of the mains supply the ampliﬁer will switch automatically to the 24 Volt input. The DC current will be limited for safety reasons.

Caution

The 24 Volt DC supply input must be protected by an external fuse.

Figure 2.1: Backup Power Connector

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2 Technical Features Page 11

2.3 Remote Switching

2.3.1 Control Voltage

In this mode the PHOENIX terminal block (see picture) is used to remotely power up the ampliﬁer with a control voltage (12 VDC 80mA). Terminal IN +/–12V is used as the control voltage input. Feeding these terminals with the control voltage will switch the ampliﬁer on.

Figure 2.2: Remote Switching PHOENIX Connector

After a delay of one second the control voltage will appear on the terminals labeled OUT +/–12V of the PHOENIX terminal block. The OUT terminals may be connected to the terminals IN of the next ampliﬁer for sequential power switching.

Up to 16 units may be daisy-chained this way. The control voltage must be applied until the last ampliﬁer in the daisy-chain is being switched on. Each ampliﬁers draws 80mA.

By supplying the inverted DC control voltage to terminal IN, all connected ampliﬁers will be switched off.

Pin Function

IN+ Ampliﬁer Switching POSITIVE terminal IN- Ampliﬁer Switching NEGATIVE terminal OUT+ Control Voltage output for sequential switching POSITIVE terminal OUT- Control Voltage output for sequential switching NEGATIVE terminal

Caution

To use the remote power on, the mains power switch needs to be switched On or Off, depending on the ampliﬁer model (refer to section 2.1).

2.3.2 SXL II & RS–485

If the device is connected to a Bittner Audio SXL II or via the RS–485 interface to a PC (XR only), the unit can be remotely switched on and off at any time.

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2 Technical Features

2.4 LED Indicators

2.4.1 Frontside

The ampliﬁers are equipped with 4 LEDs for each ampliﬁer channel:

LED Color Function

POWER green The ampliﬁer is powered up. CLIP red The input is overloaded. The LED starts illuminating as soon as the signal is 0.5 dB

under full power. SIGNAL green The signal reaches the output stage of the ampliﬁer. PROTECT red This LED will light up as soon a protection circuit has been activated or if one of the

output relays has been activated. When the ampliﬁer is switched on, this LED will

light up for approximately 1.5 seconds.

The ampliﬁers of the XB and XV Series feature an Overheat LED on the front panel. If the ampliﬁer reaches an operational temperature of 90◦Celsius the LED will light up.

The ampliﬁers of the XV DC and 4DXV Series are equipped with 2 additional LEDs on the front panel for the supply voltages:

LED Color Function

AC POWER green Mains is present DC POWER green Backup Power +24V is present

2.4.2 Backside

Ampliﬁers with an incorporated micro controller use an LED to indicate its operational status:

• slow blinking (about 1x/sec): All channels are OK

• fast blinking (about 3x/sec): Either the power supply failed or at least one of channels is in protect

Caution

After a power on of the ampliﬁer the LED is blinking fast (up to 3 sec.) until all internal supply voltages have reached their correct levels.

Figure 2.3: Amp Status

2.5 Level Control

2.5.1 Analog Level Control

The ampliﬁers are equipped with two analog level control knobs, which are setting the level of the ampliﬁer. The adjusting range is –90dB to 0dB. The 16 different settings of the switch are as follows:

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2 Technical Features Page 13

–90, –60, –30, –24, –21, –18, –15, –13, –11, –9, –7, –5, –4, –3, –1 und 0 dB.

Figure 2.4: Analog Level Controls

2.5.2 Digital Level Control (with stop)

The devices are equipped with a rotary switch per channel of the ampliﬁer, which is setting the level of the ampliﬁer. The adjusting range is –90dB to 0dB. The 16 different settings of the digital switch are as follows:

–90, –78, –66, –54, –42, –30, –24, –18, –15, –12, –9, –6, –3, –2, –1 and 0 dB.

Figure 2.5: Digital Level Controls (with stop)

Caution

Please keep in mind that the position of the rotary control will be detected by a microcontroller which will then set the according level of the ampliﬁer when it’s switched on. The XR series is an exception: The last set level is stored in the DSP. After powering up, the ampliﬁer will be set to this level. Furthermore the stored level will be ignored if the rotary control is being set to –90dB.

2.5.3 Digital Level Control (endless)

–90, –78, –66, –54, –42, –30, –24, –18, –15, –12, –9, –6, –3, –2, –1 and 0 dB.

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Figure 2.6: Digital Level Controls (endless)

Page 14

Caution

2 Technical Features

There is no stopping position for the rotary control. If the switch is turned beyond –90dB setting to the 0dB setting, the level will not jump from full attenuation to full power but remain in the –90dB position. This feature will prevent the destruction of connected equipment and/or injury of persons. As the rotary direction is being sensed, it is necessary to turn the switch clockwise again to set the ampliﬁer to higher levels. Please keep in mind that the position of the rotary control will be detected by a microcontroller which will then set the according level of the ampliﬁer. If the ampliﬁer was operated at full attenuation before turning it off with the rotary control accidentally set to 0dB it will start up with full power! In the opposite case it will start up fully attenuated at –90dB and you won’t hear any audio!

2.6 Audio Connections

The ampliﬁers may be operated with unbalanced or balanced lines. For optimum performance use balanced lines whenever possible. The driving device should be equipped with a balanced output.

Nevertheless, short cables inside a rack are not that critical. In these cases unbalanced cables may be used.

Caution

Always turn off the ampliﬁer before making any connections. As an additional precaution by switching the ampliﬁer on for the ﬁrst time, turn the audio attenuators down during powering up.

2.6.1 PHOENIX

The Phoenix audio connectors are electronically balanced. Each input contains three pins: Signal (+), Signal (-) and Shield. Depending on the model more than one channel might be combined on the PHOENIX connector.

2.6.2 XLR /TRS Jack

The ampliﬁers series BASIC, 4Xe and XR are equipped with two combined input connectors. They can be used for regular XLR connectors and for 6.3 mm TRS jacks, mounted in the same connector chassis. The audio inputs of the BASIC and XR ampliﬁers are electronically balanced.

Standard pinout for the XLR connectors:

1 - Ground, Shield | 2 - Signal (+) | 3 - Signal (-)

Figure 2.7: XLR Connector

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2 Technical Features Page 15

Standard pinout for the 6.3 mm TRS-jack:

Tip - Signal (+) | Ring - Signal (-) | Sleeve - Ground, Shield

Figure 2.8: TRS Jack

2.7 Ground Lift

The chassis ground of the ampliﬁer is connected with the ground of the AC power cord (the non-fused earthed protective conductor). Therefore, if several devices are connected in a signal chain a ground loop may be created.This ground loop will cause a compensating current to travel on the shields of the audio cables causing hum-problems.

The ampliﬁers series BASIC, XB and XR are equipped with a Ground Lift switch on the back side of the unit.

It has three settings:

Character Signiﬁcation/Meaning

Signal ground (Audio) is seperated from chassis ground

Signal ground (Audio) is connected to chassis ground

Signal ground (Audio) is connected to chassis ground via a 10 ohms resistor

Setting 1 and 3 will remove hum in most cases.

Caution

Although Ground Lift is a common and proven method, proper cabeling and grounding should avoid hum in the ﬁrst place. Isolating the ground of the AC power cord is technically different and eliminates the protective earth connection. Therefore, NEVER isolate the ground of the AC power as this may pose a serious danger to your life.

2.8 Loudspeaker Output Connectors

Use heavy gauge wire. It is advisable to use thicker cables to bridge greater distances between ampliﬁer and speakers. This will minimize power losses across the wire and improve the damping factor.

Please note: Wire thickness speciﬁcations (gauges) get larger as the wire gets thinner. So a 14-gauge wire is thicker than 18-gauge wire.

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2.8.1 PHOENIX

2 Technical Features

The Phoenix audio connectors contain two pins per channel: Signal (+) and Signal (-). Depending on the model more than one channel might be combined on the PHOENIX connector.

Caution

OUTPUT TERMINAL SAFETY WARNINGS: The removable PHOENIX terminal block must be fastened to the ampliﬁer’s output connector by screws. Do not touch output terminals while ampliﬁer power is on. Make all connections with ampliﬁer turned off. Risk of hazardous energy!

2.8.2 SPEAKON

Speaker cables may be connected to the 4 pin NEUTRIK SPEAKON connectors.

Pin-out SPEAKON connector NL4FC for channel 1 and 2:

Pin Function

1+ Output (+) 1- Output (-) 2+ n/c 2- n/c

The PHOENIX connectors are connected in parallel to channel 1 and 2 of the SPEAKON connectors. It is possible to use both connections at the same time (to parallel several loudspeakers). In this case the polarity of the speakers has to be the same. It is also important not to go below the minimum load impedance of the ampliﬁer.

2.8.3 Binding Post

The Binding Posts contain two pins per channel: Signal (+) and Signal (-). Every two channels are combined on one block.

Caution

OUTPUT TERMINAL SAFETY WARNING! Do not touch output terminals while ampliﬁer power is on. Make all connections with ampliﬁer turned off. Risk of hazardous energy!

2.9 Operation Modes

On the rear of the ampliﬁer three different operation modes can be selected on the DIP-Switch panel:

• STEREO

• PARALLEL

• BRIDGED MODE

The ampliﬁer must be re-powered before the mode change is activated.

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2 Technical Features Page 17

Caution

If the ampliﬁer doesn’t have a switch, the operation mode has to be set up by the wiring of the inputs and loudspeaker outputs.

2.9.1 Stereo Mode

For stereo operation set the mode select switch to STEREO (factory default). Models without a switch are automatically working in stereo mode. Please connect the input signals for both channels to the input connectors of CH1 AND CH2.

The input signals are available on the corresponding output channel.

2.9.2 Parallel Mode

In PARALLEL mode both ampliﬁer channels get the same input signal.

In case of a mode switch set it to PARALLEL. Connect the input signal to input CH1 (Channel 2 is disabled). The input signal of channel 1 is available on both output channels.

In case of no mode switch simply connect both inputs to the same audio source.

2.9.3 Bridged Operation

Both ampliﬁers may be bridged together to create a powerful single-channel mono ampliﬁer.

Caution

This operation mode is not available for the ampliﬁers with 100V outputs.

In case of a mode switch it needs to be set to the BRIDGE position. Connect the input signal to CH1 (Channel 2 is not active). The ampliﬁed signal is now available on both positive (+) pins of the output terminals.

Even in case of no mode switch each pair of channels can operate in bridge mode. This is achieved by using a reversed polarity of the channels to each other. The second channel gets the same input signal, but the plus and minus pins are connected the other way round.

Figure 2.9: Wiring in Bridge Mode with no mode switch

Caution

Both potentiometers remain active and should be set to the same value.

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2 Technical Features

2.10 Alive Contact

All Bittner Audio ampliﬁers (with the exception of the BASIC and 4X DUAL Series), the Switching Unit AX16 and the SXL II Control Interface are equipped with an Alive contact.

The GPI contact is located on the rear panel of the ampliﬁer and indicates the operational condition of the ampliﬁer. It is designed as a 3-pole contact closure that may be used in the open or the closed mode.

Caution

The AX16 is equipped with a 2-pole contact (normally open). It works like pin 2+3 of the 3-pole contact

Figure 2.10: Alive Contact

State Position Funktion

Alive Contact active Alive Contact inactive

pins 2+3 connected pins 1+2 connected

indicates that the ampliﬁer is working in normal conditions

indicates that the ampliﬁer is not working properly: it is shut down by the protection circuit, overheated etc. or generally switched off

This contact closure is the simplest form of remote system monitoring of the ampliﬁer without establishing a remote control network and provides easy system surveillance. The Alive Contact may also be integrated into a media control network as a GPI contact closure to trigger other control functions, i.e. backup ampliﬁer (spare ampliﬁer) switching, if required.

2.11 Data Port

Bittner Audio ampliﬁers Series XR, 4X, 4Xi, 4Xe, 4X DUAL, 8X and the switching unit AX16 are equipped with the SXL II data port, which allows the monitoring and control of the ampliﬁer by an SXL II Control Interface (refer to SXL II section 3.14).

Device Data Port

AX16 I2C 4X RS–485 4Xi RS–485 4Xe RS–485 4X DUAL I2C 8X I2C XR I2C und RS–485

Up to 16 ampliﬁer channels may be connected to the SXL II. The 16 ampliﬁer channels may be freely combined of 2-, 4- and 8-channel ampliﬁers.

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2 Technical Features Page 19

After the ampliﬁer has been connected to the SXL II, it will be automatically recognized. The Link LED on the SXL II front panel indicates ON. Communication with the SXL II unit is indicated by the fast blinking green (TX) LED on the ampliﬁer’s rear panel.

For more details please refer to SXL II section 3.14.

2.11.1 I2C

Figure 2.11: I

C Data Port

Pin Function

1 SDA I2C Data 2 SCL I2C Clock 3, 11 +12V Supply 4, 6, 8, 9, 10, 12, 14 Ground Supply 5, 7, 13, 15 n/c

Caution

The 12V supply drives the Data-Interface of an ampliﬁer in case the mains supplies have been turned off or interupted.

2.11.2 RS–485

The RS–485 interface on the XR Series ampliﬁers is a half-duplex transceiver with one single bus (2-wire) for transmitting and receiving data on the same bus.

DATA+ is pulled via 10k resistor to +5V volts and DATA- is pushed to RS–485 GND via 10k in idle state.

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Figure 2.12: RS–485 Data Port

Figure 2.13: RS–485 Connector

Page 20

Pin Function

3, 6 DATA+ 4, 5 DATA1, 8 Ground 2, 7 n/c

Ampliﬁers with a RS–485 interface are equipped with two parallel ports, PORT1 and PORT2 (RJ–45). To establish a RS–485 bus topology, PORT1 should be used as an input and PORT2 as the output to the next ampliﬁer in the chain.

Two LED indicators are active while receiving data (red=RX) and transmitting data (green=TX) over RS–

485.

2 Technical Features

2.12 Address-IDs

To connect the ampliﬁers to the SXL all ampliﬁers must have a unique address. The address is selected on the DIP switch at the rear panel of the ampliﬁer.

Multichannel ampliﬁers receive several consecutive IDs. Every ampliﬁer module consisting of two channels gets one ID.

Caution

After an address change the ampliﬁer must be disconnected from the data port connection and re-powered to activate the changes!

DIP Switch settings for 2-Channel-Ampliﬁers:

Address SW1 SW2 SW3

ID 1 ON ON ON ID 2 OFF ON ON ID 3 ON OFF ON ID 4 OFF OFF ON ID 5 ON ON OFF ID 6 OFF ON OFF ID 7 ON OFF OFF ID 8 OFF OFF OFF

DIP Switch settings for 4-Channel-Ampliﬁers:

Address SW1 SW2

ID 1+2 OFF OFF ID 3+4 ON OFF ID 5+6 OFF ON ID 7+8 ON ON

DIP Switch settings for 8-Channel-Ampliﬁers:

Address SW1 SW2

ID 1+2+3+4 OFF OFF ID 5+6+7+8 ON ON

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2 Technical Features Page 21

2.13 Noise Gate

The ampliﬁer of the 4X, 4X DUAL and 8X series are equipped with individual noise gates per channel. The noise gates are activated by the DIP switch on the rear panel of the ampliﬁer. The threshold can be selected by the DIP switch settings.

Parameter Value

Attack Time 400 µs Release Time 4 s Damping 90 dBu DIP SW3 ON = Noise Gate ON

OFF = Noise Gate OFF

DIP SW4 ON = –54 dBu Threshold

OFF = –48 dBu Threshold

2.14 EQ Card

The ampliﬁers of the XB, XV, 4X, 4X DUAL and 8X series are equipped with a plug-in slot to accomodate a Bose EQ card per channel. They are located on the power modules of the ampliﬁer. To install the EQ cards, the cover of the ampliﬁer needs to be opened.

To activate the EQ card, jumpers on the main board (power board) need to be set correctly:

EQ Card installed: Jumper removed

EQ Card not installed: Jumper set

In addition the High Pass ﬁlter of the EQ card can be used:

High Pass Filter activated: Jumper removed

High Pass Filter not activated: Jumper set

The following table indicates the jumper number dedicated to a function or ampliﬁer channel.

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2 Technical Features

Series Channel EQ Card High Pass Filter Reference

XB 1 JP1 — section 3.2.4

2 JP101 —

XV 1 JP1 — section 3.3.4

2 JP101 —

4X 1 JP2 JP3 section 3.6.4

2 JP9 JP10 3 JP2 JP3 4 JP9 JP10

4X DUAL 1 JP2 JP3 section 3.8.4

2 JP9 JP10 3 JP2 JP3 4 JP9 JP10

8X 1 JP5 JP3 section 3.10.4

2 JP7 JP14 3 JP6 JP4 4 JP8 JP12 5 JP5 JP3 6 JP7 JP14 7 JP6 JP4 8 JP8 JP12

Caution

Please make sure that the EQ card is installed correctly. Bittner Audio is not responsible for damages resulting from improper installation of the EQ card.

2.15 Line Monitoring

In combination with a SXL II the ampliﬁers of the XR, 4X, 4Xi and 4Xe series may be used to monitor the impedance of a loudspeaker line.

For more details please refer to section 3.14.9.3.

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3 Speciﬁcations of the Devices

Page 23

3 Speciﬁcations of the Devices

3.1 BASIC Series

3.1.1 General Information

No Compromises!

Meeting the tightest budgets and professional requirements in reliability, ﬂexibility, and sound. Alone or in combination with other products of the Bittner portfolio.

First-rate workmanship and the use of high-class components made the BASIC Series a standard and the choice of many contractors worldwide.

3.1.2 Features

• High Tech SMT design

• Excellent sound and superior impulse response

• Clip Limiter

• Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter

• XLR/TSR Inputs

• SPEAKON and Binding Posts outputs

• Toroidal transformers

• LED Indicators for SIGNAL, CLIP, PROTECT, POWER

• Temperature controlled, variable speed, low noise fans

• Detent potentiometers

• Stereo/Bridged/Parallel Mode

• Ground Lift

• Robust Steel Chassis

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Page 24

3.1.3 Front & Rear View

3 Speciﬁcations of the Devices

Figure 3.1: BASIC Series - Front View

Connectors and Controls of the front panel Reference

Mains Power Switch section 2.1 Volume Controls section 2.5.1

Figure 3.2: BASIC Series - Rear View

Connectors and Controls of the rear panel Reference

1 Fuse Mains Supply 2 Loudspeaker Outputs Binding Post section 2.8.3 3 Loudspeaker Outputs SPEAKON section 2.8.2 4 Fan 5 Audio Inputs XLR/TSR section 2.6.2 6 Power Cord 7 Ground Lift section 2.7 8 Operation Mode section 2.9

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3 Speciﬁcations of the Devices

Page 25

3.2 XB Series

3.2.1 General Information

Straight. Powerful!

Versatile, dynamic, stable. For a maximum in operational safety and quality.

Sequential remote power On/Off and an alive contact to provide permanent evaluation of its operational condition. The XB solves all jobs.

One-for-All!

3.2.2 Features

• Perfect for ﬁxed installations

• High Tech SMT Design

• Excellent sound and superior impulse response

• Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter

• PHOENIX input and output connectors

• XB 1600/2500 with High-End Switched Power Supply

• XB 400/800 with High-End Toroidal Power Transformer

• Temperature controlled, variable speed low noise fans

• Analog Volume Controls on the rear panel

• EQ card slot (section 2.14)

• LED Indicators for POWER, SIGNAL, CLIP, PROTECT and OVERHEAT (section 2.4.1)

• Stereo/Bridged/Parallel Mode

• Softstart

• Sequential remote power On/Off

• Alive Contact

• Ground Lift

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3.2.3 Front & Rear View

3 Speciﬁcations of the Devices

Figure 3.3: XB Series - Front View

Figure 3.4: XB Series - Rear View

Connectors and Controls of the rear panel Reference

1 Mains Power Switch section 2.1 2 Fuse Mains Supply 3 Ground Lift section 2.7 4 Volume Controls section 2.5.1 5 Operation Mode section 2.9 6 Loudspeaker Outputs section 2.8.1 7 Fan 8 Pluggable Mains Cord

9 Status LED section 2.4.2 10 Alive Contact section 2.10 10 Remote Power On/Off section 2.3.1 10 Audio Inputs section 2.6.1

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3 Speciﬁcations of the Devices

3.2.4 Jumper and Fuses

Page 27

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Figure 3.5: XB Series - Jumper and Fuses

Page 28

3 Speciﬁcations of the Devices

3.3 XV Series

3.3.1 General Information

Power for Professionals.

Made for PA/VA applications, BGM, music and acoustic alarm signals. Stable, constantly monitored, versatile, and dynamic.

Needless to say that the XV high-end toroidal output transformers are some of the very best. The XV effortlessly deals with all situations and jobs.

3.3.2 Features

• Perfect for ﬁxed installations

• High Tech SMT Design

• Excellent sound and superior impulse response

• Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter

• PHOENIX input and output connectors

• High-End Toroidal Output 100V Transformers

• Temperature controlled, variable speed low noise fans

• Analog Volume Controls on the rear panel

• EQ Card Slot (section 2.14)

• LED Indicators for POWER, SIGNAL, CLIP, PROTECT and OVERHEAT (section 2.4.1)

• Stereo/Parallel Mode

• Softstart

• Sequential remote power On/Off

• Alive Contact

• Ground Lift

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3 Speciﬁcations of the Devices

3.3.3 Front & Rear View

Page 29

Figure 3.6: XV Series - Front View

Figure 3.7: XV Series - Rear View

Connectors and Controls of the rear panel Reference

1 Fuse Mains Supply 2 Mains Power Switch section 2.1 3 Ground Lift section 2.7 4 Volume Controls section 2.5.1 5 Operation Mode section 2.9 6 Loudspeaker Outputs section 2.8.1 7 Fan 8 Pluggable Mains Cord

9 Status LED section 2.4.2 10 Alive Contact section 2.10 10 Remote Power On/Off section 2.3.1 10 Audio Inputs section 2.6.1

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3.3.4 Jumper and Fuses

3 Speciﬁcations of the Devices

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Figure 3.8: XV Series - Jumper and Fuses

3 Speciﬁcations of the Devices

Page 31

3.4 XV DC Series

3.4.1 General Information

When it Comes to the Ultimate.

Sovereign dependability and seamless switching over to 24 VDC in case of a loss of mains power. Without diminishing its performance or a reduction of output power.

In accordance with the most stringent safety regulations (EN 54–16).

Designed for voice evacuation, public announcements and background music (BGM) with uncompromised audio performance.

Reliability has a new face.

3.4.2 Features

• 24 volts backup power

• High power, high efﬁciency SMPS with PFC

• Sequential remote power On/Off

• Alive contact

• DC power-fail signalization

• High-End Toroidal Output 100V Transformers

• LED Indicators for POWER, SIGNAL, CLIP, PROTECT, AC POWER, DC POWER (section 2.4.1)

• Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter

• Temperature controlled, variable speed low noise fans

• Analog volume controls

• Softstart

• High Tech SMT Design

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3.4.3 Front & Rear View

3 Speciﬁcations of the Devices

Figure 3.9: XV DC Series - Front View

Figure 3.10: XV DC Series - Rear View

Connectors and Controls of the rear panel Reference

1 Fuse Mains Supply 2 Mains Power Switch section 2.1 3 Backup Power Connector section 2.2 4 Fan 5 DIP Switch section 3.4.5 6 Volume Controls section 2.5.1 7 Status LED section 2.4.2 8 100V Loudspeaker Outputs section 2.8.1

9 Pluggable Mains Cord 10 Alive Contact section 2.10 10 Remote Power On/Off section 2.3.1 10 Audio Inputs section 2.6.1 11 Multifunction Connector section 3.4.4

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3.4.4 Multifunction Connector

Page 33

The ampliﬁer uses a RJ–45 jack as a multifunction connector.

Figure 3.11: XV DC Series - Multifunction Connector

3.4.4.1 Audio Inputs

The audio inputs are electronically balanced. Both inputs consist of the 2 Pins IN+ and IN-. Shield is not connected.

3.4.4.2 Remote Power On

To enable remote control, an auxiliary voltage of 24VDC (max. 20mA) has to be applied to the Pins RM GND and RM +24V. A continuous connection of the control input RM SWITCH to GND will turn the ampliﬁer on, a continuous connection to RM +24V will turn it off.

Pin Label Function

6 RM GND Aux Voltage Gnd 7 RM +24V Aux Voltage +24V 8 RM SWITCH Input Control Voltage

Caution

In Input Mode 2 the ampliﬁer can only be turned on and off using the control voltage. In this mode the mains power switch is disabled.

3.4.4.3 Power Supply Fault Indication

The ampliﬁer is equipped with the fault indication output RM SYS FAULT to indicate the loss of the supply voltage.

Caution

DIP switch 3 determines whether the loss of the backup supply voltage will be indicated.

RM SYS FAULT can show 2 voltages (potentials) RM GND above ground:

Potential Bedeutung

0V Error +24V No Error

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Page 34

3.4.5 DIP Switches

The ampliﬁer backside features a block of 4 DIP switches:

Switch Function

1 Sets the sensitivity of the Signal LED of channel 1. The LED indicates either a signal

level of more than –20dB or –6dB

2 Sets the sensitivity of the Signal LED of channel 2. The LED indicates either a signal

level of more than –20dB or –6dB

3 Sets the RM SYS FAULT output to indicate a fault of the 24V backup supply (refer to

section 3.4.4.3).

4 Selects the remote power on voltage +/–12V (Mode 1, refer to section 2.3.1) or 24V

(Mode 2, refer to section 3.4.4.2). Please note: In Mode 2 the ampliﬁer may be switched on only by a control voltage of 24V.

3 Speciﬁcations of the Devices

Figure 3.12: XV DC Series - DIP Switches

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3 Speciﬁcations of the Devices

Page 35

3.5 XR Series

3.5.1 General Information

New Horizons.

A lightweight power horse. Combined with sophisticated digital signal processing. For all types of loudspeakers and venues. Line monitoring and extensive control included.

The integrated powerful digital signal processor (DSP) and controller allows for a troublefree and easy adjustment to any acoustical environment.

With wear-free digital potentiometers, sequential remote power on, alive contacts for easy supervision, computer controlled monitoring.

A new deﬁnition of powerful intelligence.

3.5.2 Features

• Premium DSP with extensive functions

• Impedance monitoring (section 2.15)

• High-End Switched Power Supply with Power Factor Correction

• Excellent sound and superior impulse response

• Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter

• PHOENIX inputs and outputs

• XLR/TSR Inputs

• SPEAKON outputs

• LED Indicators for SIGNAL, CLIP, PROTECT, POWER

• SXL II data ports (I2C, RS–485)

• Alive contact

• Paging Input

• Monitor output

• Sequential remote power On/Off

• Temperature controlled, variable speed low noise fans

• Digital wear-free Volume Controls

• Stereo/Bridged/Parallel Mode

• Softstart

• High Tech SMT Design

• Perfect Weight-to-Power ratio

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Page 36

3.5.3 Front & Rear View

3 Speciﬁcations of the Devices

Figure 3.13: XR Series - Front View

Figure 3.14: XR Series - Rear Viwe

Connectors and Controls of the rear panel Reference

1 Mains Power Switch section 2.1 2 Fuse mains Supply 3 Loudspeaker Outputs SPEAKON section 2.8.2 4 Loudspeaker Outputs PHOENIX section 2.8.1 5 Audio Inputs XLR/TRS section 2.6.2 6 Fan 7 Power Cord 8 Address-ID I2C section 2.12 8 Address-ID RS–485 section 3.5.5 8 Operation Mode section 2.9 9 RS–485 Data Port section 2.11.2

10 I2C Data Port section 2.11.1 11 Volume Controls section 2.5.2 12 Alive Contact section 2.10 12 Remote Power On/Off section 2.3.1 12 Audio Inputs PHOENIX section 2.6.1

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3 Speciﬁcations of the Devices

3.5.4 Digital Signal Processor (DSP)

The XR ampliﬁers are equipped with an internal DSP processor for extended functionality:

• Level Control

• Input routing of the two ampliﬁer channels

• 10-Band Equalizer

• Dynamics (Limiter/Compressor/Gate)

• Delay

• Cross-Over

• Signal generator

• Up to 100 presets

The internal DSP can be controlled by:

• the Bittner Audio SXL II control interface

• the DSP software installed on a computer, connected via RS–485

3.5.5 Control by RS–485 and PC

Page 37

The DSP can also be controlled via the RS–485 port on the rear panel of the ampliﬁer. To establish control, the appropriate software must be installed on a computer. The RS–485 interface was chosen to allow for direct control from a computer or media controller without the use of an SXL control interface.

Although RS–485 offers many advantages, i.e. long distances, a data bus, it is not a standard interface on a standard computer.

Caution

To allow for easy connection of a laptop to a RS–485 network, Bittner Audio offers the USB to RS–485 converter NA–1.

Figure 3.15: NA–1

In the RS–485 control mode the ampliﬁer is identiﬁed by its address. Use the DIP SWITCH ADDRESS 1–6 settings to set the RS–485 node address from 01 to 64:

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3 Speciﬁcations of the Devices

Examples:

Address 01: ON ON ON ON ON ON

Address 02: OFF ON ON ON ON ON

...

Address 64: OFF OFF OFF OFF OFF OFF

Caution

The ampliﬁer must be re-powered before the address change is activated!

The input/output values of all ampliﬁer channels are being monitored. The following reduced set of values and conditions is available via the RS–485 interface:

• Heatsink temperature

• Protect

• Clip

• Load impedance (reliable values only between –30dB under maximum power and maximum output

level)

3.5.6 Emergency Paging Bus & Monitor Bus

This input can be switched into the audio path as a priority signal, e.g. for emergency announcements. It’s available through the data port connector and is activated by a relay per channel.

Pin Function

4 Paging (+)

12 Paging (-)

Caution

This feature is only available in connection with an SXL II.

This additional output allows to listen to the audio signal directly at the loudspeaker output of the ampliﬁer. The Monitor Bus is available through the data port connector at line level. It is activated by a relay per channel.

Pin Function

5 MonitorB (+)

7 MonitorA (+) 13 MonitorB (-) 15 MonitorA (-)

Caution

This feature is only available in connection with an SXL II.

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3 Speciﬁcations of the Devices

Figure 3.16: XR Series - Emergency Paging Bus and Monitor Bus

Page 39

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Page 40

3 Speciﬁcations of the Devices

3.6 4X Series

Caution

Production of the 4X Series stopped in November 2014. Its successor is the 4Xi/4Xe Series. The information listed here is for reference purposes only.

3.6.1 General Information

Power. Intelligence. Control.

Unlimited and uncompromising. Superior sound. Including line monitoring.

Switched supplies? Naturally! Peak performance won’t come easy! Wear-free digital potentiometers, sequential remote power on, alive contacts for every channel pair, computer control, detachable connectors.

Sometimes answers come easy.

3.6.2 Features

• Up to 4x 1400 W in only 2 RU

• 2 separate stereo ampliﬁers

• Line monitoring (section 2.15)

• Noise Gate (switchable, section 2.13)

• EQ card slot (section 2.14)

• SXL II data port (RS 485)

• Sequential Remote Power On/Off

• High-End Switched Power Supply with Power Factor Correction

• 2 Alive Contacts

• Digital wear-free Volume Controls

• Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter

• PHOENIX inputs and outputs

• LED indicators for SIGNAL, CLIP, PROTECT, POWER

• Temperature controlled, variable speed low noise fans

• Softstart

• Ideal for ﬁxed installations: Controls from the back panel only

• High Tech SMT Design

 2016 Bittner Audio Int. GmbH

3 Speciﬁcations of the Devices

3.6.3 Front & Rear View

Page 41

Figure 3.17: 4X Series - Front View

Figure 3.18: 4X Series - Rear View

Connectors and Controls of the rear panel Reference

1 Fuse Mains Supply 2 Mains Power Switch section 2.1 3 Volume Controls section 2.5.3 4 Address-ID section 2.12 4 Noise Gate section 2.13 5 Loudspeaker Outputs section 2.8.1 6 Fan 7 Audio Inputs section 2.6.1 8 powerCON Connector 9 Alive Contacts section 2.10

9 Remote Power On/Off section 2.3.1 10 Status LED section 2.4.2 11 RS–485 Data Port section 2.11

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Page 42

3.6.4 Jumper and Fuses

3 Speciﬁcations of the Devices

 2016 Bittner Audio Int. GmbH

Figure 3.19: 4X Series - Jumper and Fuses

3 Speciﬁcations of the Devices

Page 43

3.7 4Xi/4Xe Series

3.7.1 General Information

The new 4X – Groundbreaking technology for event and installation! Much more than just power!

Bittner 4X: 4x superior sound and solid durability, combined with amazing and leading technology. The next challenge may come!

Audio networking via DanteTM(optional). Control via Ethernet (with SXL II) – worldwide diagnostics and maintenance via the Internet. Mission Possible!

Four in one: front or rear controls, analog or digital inputs (whatever the application requires). XLR or Phoenix input connectors, Speakon or Phoenix output connectors – the concept of the 4X is as ﬂexible as its applications.

3.7.2 Features

• Up to 4x 2000 W in only 2 RU

• For event (e version) or installation (i version)

• Impedance measurement (section 2.15)

• Selectable Clip Limiter (hard/soft)

• 4-channel DanteTMinputs (optional)

• SXL II data port (RS485)

• High Tech SMT Design

• Excellent sound and superior impulse response

• 2 separate stereo ampliﬁers

• Ready for 2 Ohm operation

• Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter, 3 ms Muting Delay

• XLR inputs and Speakon outputs (e version)

• Phoenix in- and outputs (i version)

• High-End switched power supply with PFC

• LED indicators for SIGNAL, CLIP, PROTECT, POWER

• Temperature controlled, variable speed low noise fans

• Digital wear-free Volume Controls (can be operated manually)

• Selectable Stereo/Bridged Mode

• Softstart

• Sequential Remote Power On

• 2 Alive Contacts

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Page 44

3.7.3 Front & Rear View 4Xi

3 Speciﬁcations of the Devices

Figure 3.20: 4Xi Series - Front View

Figure 3.21: 4Xi Series - Rear View

Connectors and Controls of the rear panel Reference

1 Mains Power Switch section 2.1 2 Fuse Mains Supply 3 Audio Inputs DanteTM(optional) section 3.7.8 4 Volume Controls section 2.5.2 5 Fan 6 Loudspeaker Outputs section 2.8.1 7 powerCON Connector 8 RS–485 Data Port section 2.11 9 Alive Contacts section 2.10 9 Remote Power On/Off section 2.3.1

10 DIP Switches

Address-ID section 2.12 DANTETMOn/Off section 3.7.8 Clip Limiter section 3.7.7 Operation Mode section 2.9

11 Audio Inputs PHOENIX section 2.6.1

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3 Speciﬁcations of the Devices

3.7.4 Front & Rear View 4Xe

Connectors and Controls of the front panel Reference

Mains Power Switch section 2.1 Volume Controls section 2.5.2

Page 45

Figure 3.22: 4Xe Series - Front View

Figure 3.23: 4Xe Series - Rear View

Connectors and Controls of the rear panel Reference

1 Fuse Mains Supply 2 Audio Inputs DanteTM(optional) section 3.7.8 3 Audio Inputs COMBO section 2.6.2 4 Fan 5 Loudspeaker Outputs SPEAKON section 3.7.6 6 powerCON Connector 7 RS–485 Data Port section 2.11 8 Alive Contacts section 2.10 8 Remote Power On/Off section 2.3.1

9 DIP Switches

Address-ID section 2.12 DANTETMOn/Off section 3.7.8 Clip Limiter section 3.7.7 Operation Mode section 2.9

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Page 46

3.7.5 Fuses

3 Speciﬁcations of the Devices

 2016 Bittner Audio Int. GmbH

Figure 3.24: 4Xi/4Xe Series - Fuses

3 Speciﬁcations of the Devices

3.7.6 Loudspeaker Output Connectors 4Xe

The pin-out of the SPEAKON connectors are as follows:

SPEAKON Channel 1

Pin Signal

1+ Channel 1+

1- Channel 1-

2+ Channel 2+

2- Channel 2-

SPEAKON Channel 2

Pin Signal

1+ Channel 2+

1- Channel 2-

Page 47

SPEAKON Channel 3

Pin Signal

1+ Channel 3+

1- Channel 3-

2+ Channel 4+

2- Channel 4-

SPEAKON Channel 4

Pin Signal

1+ Channel 4+

1- Channel 4-

The dual assignment of the SPEAKON-jack pins in channel 1 and 3 allow for the use of a single SPEAKON plug for bridged operation (cables with 2-conductors) or Bi-Amping (cables with 4-conductors).

3.7.7 Clip Limiter

The 4Xi and 4Xe series feature a switchable Clip Limiter (DIP-switch section 3.7.9).

The clip limiter reduces signal peaks to avoid unwanted signal distortion. It activates 0.5 dB below a distortion of 1% THD.

An additional DIP switch (refer to section 3.7.9) sets the clip limiter to an either Hard (faster) or Soft (slower) response.

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Page 48

3.7.8 DanteTMInputs

3 Speciﬁcations of the Devices

The ampliﬁer may be optionally equipped with a DanteTM(audio) interface. The interface complements the ampliﬁer with 4 additional inputs.

Older DanteTMcards use two RJ–45 input with 2 audio channels each. Newer cards provide one RJ–45 input for all 4 audio channels.

Figure 3.25: 4Xi/4Xe Series - Dante

Ports

The digital inputs may be engaged by means of a DIP switch (refer to section 3.7.9).

Caution

The analog inputs remain active regardless of the use of the DanteTMinterface.

3.7.9 DIP Switches

The ampliﬁer backside features a block of 8 DIP switches:

Switch Function

1 + 2 Address-IDs (refer to section 2.12)

3 DanteTMInputs On/Off 4 Clip Limiter On/Off 5 Characteristic Clip Limiter: Soft = OFF /Hard = ON 6 Bridged Operation for channel 1 and 2 (refer to section 2.9.3) 7 Bridged Operation for channel 3 and 4 (refer to section 2.9.3) 8 not in use

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3 Speciﬁcations of the Devices

Page 49

3.8 4X DUAL Series

3.8.1 General Information

Two for One.

Straight forward. No compromises. The 4X DUAL combines two separate 2-channel ampliﬁers in one chassis.

Peak performance in a double pack.

3.8.2 Features

• 2 separate stereo ampliﬁers

• 2 separate power supplies

• 2 High-End toroidal transformers

• Digital wear-free Volume Controls

• Sequential Remote Power On/Off

• SXL II data port (I2C)

• Noise Gate (switchable, section 2.13)

• Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter

• PHOENIX inputs and outputs

• LED indicators for SIGNAL, CLIP, PROTECT, POWER

• Temperature controlled, variable speed low noise fans

• Softstart

• Ideal for ﬁxed installations: Controls from the back panel only

• High Tech SMT Design

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Page 50

3.8.3 Front & Rear View

3 Speciﬁcations of the Devices

Figure 3.26: 4X DUAL Series - Front View

Figure 3.27: 4X DUAL Series - Rear View

Connectors and Controls of the rear panel Reference

1 Fuse mains Supply 2 Volume Controls section 2.5.3 3 Fan 4 Loudspeaker Outputs section 2.8.1 5 Audio Inputs section 2.6.1 6 Pluggable Mains Cord 7 Mains Power Switch section 2.1 8 Remote Power On/Off section 2.3.1 9 Address-ID section 2.12

9 Noise Gate section 2.13 10 Status LED section 2.4.2 11 I2C Data Port section 2.11.1

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3 Speciﬁcations of the Devices

3.8.4 Jumper and Fuses

Page 51

Figure 3.28: 4X DUAL Series - Jumper and Fuses

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Page 52

3 Speciﬁcations of the Devices

3.9 4DXV Series

3.9.1 General Information

A Class Of Its Own.

Surpassing your expectations.

Its revolutionary Class D concept provides a superior combination of efﬁciency and endurance. Without any loss, even during continuous operation.

The 100 V ﬂoating direct outputs lower a lot more than just the weight: Installation and rack prices will drop signiﬁcantly. And to round this off, the cost for energy consumption will average at roughly one third of any ordinary ampliﬁer.

In addition: In case of a loss of mains power, the ampliﬁer will automatically switch to 24 V battery power without any loss of output power!

Sequential power up and „Alive“ relays included. No doubts - a real Bittner!

3.9.2 Features

• Class D

• Discrete build of power amp modules

• 2 separate 2-channel ampliﬁers

• 100 volts direct output

• 24 volts backup power

• High power, high efﬁciency SMPS with PFC

• LED Indicators for AC POWER, DC POWER, SIGNAL, CLIP, PROTECT (section 2.4.1)

• Protection circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter

• Sequential remote power on/off

• 2 alive contacts

• Temperature controlled, variable speed, low noise fans

• Volume control at the back

• High Tech SMT Design

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3 Speciﬁcations of the Devices

3.9.3 Front & Rear View

Page 53

Figure 3.29: 4DXV Series - Front View

Figure 3.30: 4DXV Series - Rear View

Connectors and Controls of the rear panel Reference

1 Fuse Mains Supply 2 Mains Power Switch section 2.1 3 Backup Power Connector section 2.2 4 Fan 5 Volume Controls section 2.5.1 6 Status LED section 2.4.2 7 100V Loudspeaker Outputs section 2.8.1 8 Pluggable Mains Cord

9 Audio Inputs section 2.6.1 10 Alive Contacts section 2.10 10 Remote Power On/Off section 2.3.1

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3 Speciﬁcations of the Devices

3.10 8X Series

3.10.1 General Information

Setting Standards.

Multiple reliability. Meeting the highest demands in sound and ﬂexibility.

With two separate power supplies, an integrated noise gate per channel, sequential remote power On/Off, alive contacts for every channel pair, and computer control.

To master a complete installation with only one power pack – that‘s what we call a standard.

3.10.2 Features

• Up to 8x 400 W @ 4 Ohm in only 2 RU

• 4 separate ampliﬁers

• 2 High-End toroidal transformers

• 2 seperate power supplies

• 4 Alive Contacts

• Sequential Remote Power On

• Digital wear-free Volume Controls

• SXL II Data Port (I2C)

• Noise Gate (switchable, section 2.13)

• EQ card slot (section 2.14)

• Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter

• PHOENIX inputs and outputs

• LED indicators for SIGNAL, CLIP, PROTECT, POWER

• Temperature controlled, variable speed low noise fans

• Softstart

• Ideal for ﬁxed installations: Controls from the back panel only

• High Tech SMT Design

 2016 Bittner Audio Int. GmbH

3 Speciﬁcations of the Devices

3.10.3 Front & Rear View

Page 55

Figure 3.31: 8X Series - Front View

Figure 3.32: 8X Series - Rear View

Connectors and Controls of the rear panel Reference

1 Fuse Mains Supply 2 Volume Control section 2.5.3 3 Audio Inputs section 2.6.1 4 Fan 5 Loudspeaker Outputs section 2.8.1 6 Pluggable Mains Cord 7 Mains Power Switch section 2.1 8 Remote Power On/Off section 2.3.1 9 Address-ID section 2.12 9 Noise Gate section 2.13

10 Status LED section 2.4.2 11 Alive Contacts section 2.10 12 I2C Data Port section 2.11.1

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3.10.4 Jumper and Fuses

3 Speciﬁcations of the Devices

 2016 Bittner Audio Int. GmbH

Figure 3.33: 8X Series - Jumper and Fuses

3 Speciﬁcations of the Devices

Page 57

3.11 XT Series

3.11.1 General Information

Simply the Best.

Perfect frequency response and sound. Individually tested.

100 V transformers are an essential part of ﬁxed installations. The possibility to connect many loudspeakers in parallel to a single ampliﬁer and to have them galvanically separated is of undisputed signiﬁcance. To save costs, however, low quality transformers are being used that offer only low ﬁdelity in the lower and higher frequency range.

• Sensible power granulation

• Ultra linear frequency response

• Flux free quality

• Small size

The XT transformers are being used in the Bittner Audio XV and XV DC 100 Volt series. Bittner quality is available in every single component.

3.11.2 Connections

Figure 3.34: XT Transformer - Connection Wires and Sticker

The XT transformer comes with 4 connection wires, each with a unique color. A sticker states the color of the (+) pin.

100V: Two „thin“ twisted pair wires

Low impedance (4 Ohm): Two „thicker“ wires

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3 Speciﬁcations of the Devices

3.12 8XT Series

3.12.1 General Information

Bittner Audio’s high quality transformers are not only available as single transformers, but come in an 8 channel chassis with only 2 RU.

Simply connect an 8X ampliﬁer to an 8XT multichannel output transformer and you’ll be ready to meet our European norms and standards.

3.12.2 Front & Rear View

Figure 3.35: 8XT Series - Front View

Figure 3.36: 8XT Series - Rear View

Connectors and Controls of the rear panel Reference

1 Ampliﬁer Input 2 Loudspeaker Output

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3 Speciﬁcations of the Devices

Display

LEDs

DIP

Switches

Data

Port

Contacts

Alive

Active

Output

Stage

Alive Contacts

Ampliﬁers

Processor

Amp 1

Amp 2

Amp 3

Amp 4

Amp 5

Amp 6

Amp 7

Amp 8

Input

Stage

L e v e

Page 59

3.13 AX16 - Intelligent Ampliﬁer Switch

3.13.1 General Information

The AX16 is an Intelligent Ampliﬁer Switch that is capable switching both, 100V and high power lowimpedance ampliﬁers. A faulty ampliﬁer will be completely replaced with its audio inputs and loudspeaker outputs. The switching process is microprocessor controlled and takes less than 250 ms.

The control of/by the ampliﬁers is established via contact closures or the SXL II Control Interface.

To maintain the volume of the system in case of a backup, the input levels are controlled through digital potentiometers and stored. As a result, the levels/volumes of all ampliﬁer channels will remain at their set value.

If the AX16 is connected to a Bittner Audio SXL unit, the so-called Intelligent Switching Algorithm will be

Figure 3.37: AX16 - Block Diagram

activated. This algorithm transmits not only channel levels but also all parameters of an integrated DSP to the backup ampliﬁer.

The integrated switch-over and fault detection contacts allow for easy communication with any control and monitoring system.

If connected to a Bittner Audio SXL II via data port, the AX16 will become an essential part of the Bittner Audio network for intelligent remote control and monitoring.

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3.13.2 Features

• Microprocessor controlled Ampliﬁer Switch for 16 Channels

• Switching is issued via Alive Contacts or SXL II

• Operation Modes:

• 1 group with 2 Backup per 14 Signal Channels

• 2 groups with 2 Backup per 6 Signal Channels

• 4 groups with 2 Backup per 2 Signal Channels

• Digital wear-free Volume Controls

• 2 Alive Contacts: ALIVE and BACKUP OPERATION

• Output relays with max. 20 A/240V, 100V compatible

• Comprehensive LED Indicators under all conditions

• All connectors (PHOENIX) at the back

• SXL II Data Port (I2C)

3 Speciﬁcations of the Devices

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3 Speciﬁcations of the Devices

3.13.3 Front & Rear View

Page 61

Figure 3.38: AX16 - Front View

Figure 3.39: AX16 - Rear View

Anschlüsse und Bedienelemente auf der Rückseite Referenz

1 Mains Power Switch 2 Power On LED section 3.13.4

3 DIP Switch

Apmliﬁer connected section 3.13.5.2 Logic Alive Contact section 3.13.5.3 Switching Mode section 3.13.5.1 Control Mode section 3.13.5.4

4 Volume Controls section 3.13.8 5 Audio Inputs section 3.13.6.1 6 Loudspeaker Outputs section 3.13.6.2 7 Pluggable Mains Cord 7 Fuse Mains Supply 8 Alive Contacts section 3.13.9

9 Alive Inputs section 3.13.6.3 10 I2C Data Port section 3.13.7 11 Status LED section 3.13.4 12 Ampliﬁer Inputs section 3.13.6.1 13 Ampliﬁer Outputs section 3.13.6.2

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3.13.4 LED Indicators

3 Speciﬁcations of the Devices

Figure 3.40: AX16 - LED Indicators Frontside

LED Color Function

POWER green Indicates that the unit is powered up

Mode 7 + 1 red Indicates the Mode 7+1

Ampliﬁer 1–8 8x red Indicates the active ampliﬁers

Mode 3+1 red Indicates the Mode 3+1

Ampliﬁer 1–8 8x red Indicates the active ampliﬁers

Mode 1+1 red Indicates the Mode 1+1

Ampliﬁer 1–8 8x red Indicates the active ampliﬁers

If one ampliﬁer is switched to the backup ampliﬁer, the LED of the ampliﬁer and the LED of the backup ampliﬁer will ﬂash.

In the case that another ampliﬁer fails and cannot be switched to a backup ampliﬁer its LED will ﬂash fast.

Figure 3.41: AX16 - LED Indicators Backside

The AX16 is equipped with two LEDs on the rear panel of the unit for operation with the SXL II:

LED Color Function

POWER green Indicates that the unit is powered up STATUS AX16

3.13.5 Conﬁguration

red Blinks once every second under normal conditions, blinks fast in case of AX16 fault

or if the mains voltage drops under 190 VAC

It is possible to connect two- or multi-channel ampliﬁers to an AX16. In the following sections the word ampliﬁer stands for a 2 channels. Therefore the 4X series models count as 2, the 8X series models as 4 ampliﬁers.

The AX16 is conﬁgured by a series of DIP switches at the back of the unit.

Figure 3.42: AX16 - DIP Switches

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3 Speciﬁcations of the Devices

Mode 7+1

Mode 3+1

Mode 1+1

Program Amp

Backup Amp

3.13.5.1 Switching Modes

Page 63

The switching modes determine how many ampliﬁer channels are being backed up. The switching modes are selected with DIP switches 1 and 2 of the block SW3 on the rear panel of the device.

Caution

To activate the DIP-Switch SW3 settings the AX16 has to be re-powered.

Mode 7+1 Mode 3+1 Mode 1+1

Eight ampliﬁers (16 channels) may be connected. Seven ampliﬁers (14 channels) are being used as program ampliﬁers and one ampliﬁer (2 channels) as the backup ampliﬁer.

Two groups of four ampliﬁers (8 channels) each may be connected. Three ampliﬁers (6 channels) of each group are being used as program ampliﬁers and one ampliﬁer (2 channels) as the backup ampliﬁer.

Four groups of two ampliﬁers (4 channels) each may be connected. One ampliﬁer (2 channels) is being used as program ampliﬁer and one ampliﬁer (2 channels) is being used as the backup ampliﬁer.

Figure 3.43: AX16 - Switching Modes

3.13.5.2 Connected Ampliﬁers

The DIP switches 1 to 8 of block SW1 tell the AX16 whether an ampliﬁer is connected or not.

• ON: ampliﬁer is connected

• OFF: no ampliﬁer is connected or the ampliﬁer is controlled by an SXL II (refer to Split Mode sec-

tion 3.14.9.5).

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3.13.5.3 Logic of Alive Contact

3 Speciﬁcations of the Devices

The DIP switches 1 to 8 of block SW2 determine the control logic of the connected alive contacts in case of a failure:

• ON: positive logic (contact open if amp fails)

• OFF: negative logic (contact closed if amp fails)

Caution

If the AX16 is connected to an SXL II, these DIP switches are disabled for every ampliﬁer, which is also connected via its data port to the SXL II (refer to Split Mode section 3.14.9.5).

3.13.5.4 Control Modes

The backup switching may be activated in two different ways, which are selected by DIP switch 3 of block SW3:

• ON: Control by a connected SXL II

• OFF: Control by the ALIVE contacts of the connected ampliﬁers or any other potential-free contact

Caution

In case of using contact closures and the SXL II (refer to Split Mode section 3.14.9.5), the DIP switch has to be set to ON.

When using the contact inputs, a single contact will control one ampliﬁer (2 channels). This contact is directly compatible with the ALIVE (fault detection) contacts of Bittner Audio ampliﬁers.

In addition, any other potential-free contact may be used. The switching will take place after the contact has been activated (ampliﬁer defect will be indicated by either an opened or a closed contact). This logic operation (positive-negative) needs to be set with DIP Switch block SW 2 for each ampliﬁer.

3.13.6 Connection of Ampliﬁers

3.13.6.1 Signal and Ampliﬁer Inputs

The signal inputs of the individual channels may be connected to the PHOENIX terminals Signal Input CH1 – CH14.

Caution

Since the backup ampliﬁer does not have its own input, only 14 inputs are needed on the AX16. The input signal of the backup ampliﬁer is made up of the input channels of the faulty ampliﬁer.

 2016 Bittner Audio Int. GmbH

Figure 3.44: AX16 - Signal Inputs

3 Speciﬁcations of the Devices

Page 65

The input signals are then available on the PHOENIX terminals Ampliﬁer Input Ch1 – CH16.

Figure 3.45: AX16 - Ampliﬁer Inputs

Caution

In case of failure, the backup ampliﬁer will receive its audio signal from the AX16. This is the reason why 16 channels (AX16 -> ampliﬁers) are available.

3.13.6.2 Ampliﬁer Outputs and Loudspeakers

The ampliﬁer power outputs (including the outputs of the backup ampliﬁer) need to be connected to the PHOENIX terminals labeled Ampliﬁer Output CH1 – CH16 on the AX16. Depending on the selected mode, the power outputs are switched to the appropriate loudspeaker lines.

Figure 3.46: AX16 - Ampliﬁer Outputs

The loudspeakers may be connected to the terminals Speaker CH1 – Ch14 on the AX16.

Figure 3.47: AX16 - Loudspeaker Outputs

Caution

In line with the input conﬁguration 14 loudspeaker and 16 ampliﬁer connectors are available.

3.13.6.3 Alive Contact of the Ampliﬁers

If the AX16 is controlled by the alive contact of an ampliﬁer, the corresponding contacts on the backside of the unit need to be connected. This includes the backup ampliﬁer. The PHOENIX terminals offer eight contact pairs.

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Page 66

Figure 3.48: AX16 - Alive Contact Inputs

Caution

3 Speciﬁcations of the Devices

Any potential-free contact may be used for controlling.

3.13.7 Data Port

The AX16 is equipped with an I2C data port (refer to section 2.11.1) for the connection to a Bittner Audio SXL II. The connection of the AX16 to an SXL II will integrate it into the Bittner Audio monitoring system.

Bittner Audio recommends the use of the AX16 in connection with an SXL II to utilize every option of the intelligent controlling and monitoring system. If an AX16 is connected to the SXL II ampliﬁer controlling device, the DSP parameters (if featured) will be transmitted to the backup ampliﬁers.

Caution

The level controls of the AX16, if integrated into the SXL II ampliﬁer controlling system, need to be set to 0dB.

3.13.8 Level Control

To maintain the level/volume structure of the system, independent of the backup switching condition, it is important to control the level not on the ampliﬁer itself but on the backup switching unit. This ensures that the level of the faulty ampliﬁer is being applied to the backup ampliﬁer.

Figure 3.49: AX16 - Digital Level Controls

Every potentiometer of the ampliﬁer (including the backup ampliﬁer) should be set to the same value (in standard operation maximum = Unity Gain).

Caution

If an SXL II controls the AX16, all levels will be intelligently adapted. This allows for the use of ampliﬁers of different power outputs in the same system. The level controls of the AX16 need to be set to 0dB.

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3 Speciﬁcations of the Devices

3.13.9 Alive and Active Contacts

Page 67

The condition of an AX16 is indicated by its own ALIVE contact. In addition, a status contact (ACTIVE) is available which triggers in case of the activation of the backup ampliﬁer/mode.

Figure 3.50: AX16 - Alive Contacs

Caution

In case the mains supply fails, the AX16 (ALIVE contact will open) will fall back into a safety mode: all signals are directly switched to the ampliﬁer inputs and the ampliﬁer outputs are directly switched to the loudspeaker outputs. The digital potentiometers are bridged and the signals are switched without level control.

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Bittner Amp 1

Bittner Amp 2

Bittner Amp 3

Bittner Amp 4

Bittner Amp 5

Bittner Amp 6

Bittner Amp 7

Bittner Amp 8

AX16 Connection

Alive Contacts

AX16 Input Gain

AX16 Connection Signal Input

AX16 Connection Ampliﬁer Input

AX16 Connection

Ampliﬁer Output

AX16 Connection

Speaker

Program Amp

Backup Amp

Cable Connection

Internal AX16 Connection

AX16 DIP Switch Settings

3 Speciﬁcations of the Devices

3.13.10 Application Examples

3.13.10.1 Mode 7+1 with Alive Contacts

In this example all 8 ampliﬁers are connected to the AX16 via their alive contacts. Ampliﬁer no. 8 is the backup ampliﬁer.

Figure 3.51: AX16 - Mode 7+1 with Alive Contacts

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3 Speciﬁcations of the Devices

Bittner Amp 1

Bittner Amp 2

Bittner Amp 3

Bittner Amp 4

Bittner Amp 5

Bittner Amp 6

Bittner Amp 7

Bittner Amp 8

AX16 Connection

Alive Contacts

AX16 Input Gain

AX16 Connection Signal Input

AX16 Connection Ampliﬁer Input

AX16 Connection

Ampliﬁer Output

AX16 Connection

Speaker

Program Amp

Backup Amp

Cable Connection

Internal AX16 Connection

AX16 DIP Switch Settings

SXL II Data Bus

Page 69

3.13.10.2 Mode 3+1 with SXL II and Alive Contacts

This examples contains 2 groups of 4 ampliﬁers each. The ﬁrst group is connected to the AX16 via their alive contacts and may be 100V types. The second group is controlled through the SXL II data bus. The backup ampliﬁers are no. 4 for group 1 and no. 8 for group 2.

Figure 3.52: AX16 - Mode 3+1 with SXL II and Alive Contacts

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Page 70

Bittner Amp 1a

Bittner Amp 2a

Bittner Amp 3a

Bittner Amp 4a

Bittner Amp 1b

Bittner Amp 2b

Bittner Amp 3b

Bittner Amp 4b

AX16 Connection

Alive Contacts

AX16 Input Gain

AX16 Connection Signal Input

AX16 Connection Ampliﬁer Input

AX16 Connection

Ampliﬁer Output

AX16 Connection

Speaker

Program Amp

Backup Amp

Cable Connection

Internal AX16 Connection

AX16 DIP Switch Settings

3 Speciﬁcations of the Devices

3.13.10.3 Mode 3+1 with 4 Channel Ampliﬁers and Alive Contacts

The example uses 4-channel ampliﬁers. All channels use one power supply. Therefore it is necessary to backup all 4 channel at one time. In other words: 4 backup channels are required.

This can be accomplished by connecting only 2 channels of the amp to a 3+1 group of the AX16. In the diagram the channel 1+2 are indicated as „a“ and the channels 3+4 as „b“. The backup ampliﬁer is number

Figure 3.53: AX16 - Mode 3+1 with 4 Channel Ampliﬁers and Alive Contacts

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3 Speciﬁcations of the Devices

Page 71

3.14 SXL II - Control Interface

3.14.1 General Information

SXL II is the center piece for power management, ampliﬁer control and monitoring. It works embedded in a LAN network, over the internet, or as a stand-alone unit with front panel control.

Up to 16 ampliﬁer channels may be connected to one SXL II. The 16 ampliﬁer channels may be freely combined of two-, four- and eight-channel ampliﬁers. The ampliﬁers are connected to the SXL II with the I2C or RS–485 system bus.

The SXL II is not only used to control the ampliﬁers but to provide an unparalleled level of monitoring. The control side of it will power up the ampliﬁers, control the volume, etc. The monitoring, however, will inform about the current status of the ampliﬁer or individual channels (e.g. temperature, etc.). In addition, the SXL II provides full control of all features of the DSP incorporated into the XR-series.

Up to 16 complex scenarios (snapshots) may be recalled via the 8 logic inputs.

Its 8 output relays may be used for the signalization of errors or the control of external devices.

Two additional relays enable the control of external devices or scheduled applications like line monitoring, etc.

The SXL II offers extensive protocols for various events: for uninterrupted control, all relevant events are being stored and available over the Internet as Syslog and/or e-mail.

The internal signal generator allows for a scheduled, repetitive surveillance of the connected speaker lines.

3.14.2 Features

• Network management

• Integration into Ethernet LAN

• Communication with ampliﬁers via RS–485 or I2C

• Independent backup modes

• Local conﬁguration without the need for a computer

• SD card for storage of conﬁgurations

• Logging of all events

• Forwards log-events via e-Mail and SNMP syslog

• Integrated web server

• Fast dynamic user conﬁgurable web interface with integrated help system

• Simple integration into object orientated programming languages

• Automatic detection of connected ampliﬁers

• Monitoring of voltage and current

• Logic inputs 5 - 24 volts

• Logic relay outputs

• Alive contact

• Display of active conﬁguration, alive and status LED

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3.14.3 Front and Rear View

3 Speciﬁcations of the Devices

Figure 3.54: SXL II - Front View

Figure 3.55: SXL II - Rear View

Connectors and Controls of the rear panel Reference

1 Pluggable Mains Cord 1 Fuse Mains Supply 2 Mains Power Switch

3 LED Power On section 3.14.5

LED RS–485 Activity section 3.14.5 LED I2C Activity section 3.14.5 LED SXL II Alive section 3.14.5

4 Ethernet Connector section 3.14.4.1 5 RS–485 Data Port section 3.14.4.2 6 I2C Data Port section 3.14.4.2 7 Alive Contact section 2.10 8 Audio Output Signal Generator section 3.14.6.4

9 General Purpose Relay Outputs section 3.14.6.3 10 Relay Outputs Signalization section 3.14.6.2 11 Logical Inputs section 3.14.6.1 12 Auxiliary Voltage section 3.14.6.1 13 SD Card Slot section 3.14.10

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3 Speciﬁcations of the Devices

3.14.4 Starting Up

3.14.4.1 Network Connection

Page 73

The SXL II communicates via Ethernet. An unlimited number of SXL II units may be connected to an Ethernet network. The SXL II establishes the communication with local devices (ampliﬁers, backup switches, etc.). It communicates via the LAN with the control computer or media control system. A standard RJ–45 connector (CAT5), located on the back panel of the device, interfaces with the Ethernet network.

Figure 3.56: SXL II - Integration in an Ethernet network

Caution

The SXL unit works with 10/100 Mbps (you might have to reconﬁgure your PC). In the case your computer does not support 10/100 Mbps, it is recommended to connect to an Ethernet switch that supports both data rates.

Figure 3.57: SXL II - Ethernet Connector

3.14.4.2 Connection of the Ampliﬁers and the AX16

The AX16 can be conncted via I2C or RS–485, depending on the available ampliﬁer interface (refer to Data Port section 2.11).

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I2C System Bus

3 Speciﬁcations of the Devices

The units are connected with a 15-pin ribbon cable. It is equipped with male Sub-D DB–15 connectors. One connector is required for each ampliﬁer, the AX16 and the SXL II.

Figure 3.58: SXL II - I

C System Bus Cable

The I2C system bus transmits the following signals:

• Control signals in I2C format (refer to section 2.11.1)

• Audio of the emergency paging bus (only XR Series, see section 3.5.6)

• Audio of the monitor bus (only XR Series, siehe section 3.5.6)

• 12V supply voltage for the interface boards of the ampliﬁers and the AX16 (see section 2.11.1)

The maximum cable length is 2 meters. The devices need to be installed in such a way as to not exceed the maximum cable length.

Preassembled cables or ribbon cables and single connectors may be ordered from your supplier.

RS–485 System Bus

An „off the shelf“ CAT5 patch cable may be used.

For the pin layout of the RS–485 connector please refer to section 2.11.2.

3.14.4.3 Address IDs

A unique ID needs to be assigned to every ampliﬁer that is connected to an SXL II via the system bus. It may be set via the DIP switch on the backside of the ampliﬁer.

Every two channels of an ampliﬁer share one ID. Consequently, every two-channel ampliﬁer uses one ID, four-channel ampliﬁers two IDs and eight-channel ampliﬁers four IDs. The table explains the different settings.

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3 Speciﬁcations of the Devices

Page 75

Number of the Ampliﬁer’s Channels

2 4 8

ID 1 IDs 1+2 IDs 1+2+3+4 ID 2 ID 3 IDs 3+4 ID 4 ID 5 IDs 5+6 IDs 5+6+7+8 ID 6 ID 7 IDs 7+8 ID 8

Caution

After setting the ID(s), the ampliﬁer needs to be disconnected from the SXL (system bus cable) and from the mains supply (power cord) to activate the new ID.

3.14.4.4 Settings of Network Parameters

To operate the SXL II in an Ethernet network, the network settings need to be set. The settings may be changed manually via the front panel. To avoid inadvertent changes, these network parameters are only accessible via SERVICE MODE 1 (refer to section 3.14.7.2).

Pushing the UP and DOWN keys at the same time will set the SXL II into SM1. !sm1 will light up in the upper right space of the display. By pushing the RIGHT or LEFT key, the SXLSTAT menu group may be selected. Select the appropriate parameters by pushing the UP and DOWN keys. The parameters that may be set are IP address IP and subnet mask MS.

Push UP and DOWN keys until IP lights up in the lower left space of the display.

To change this parameter, push ENTER. Square brackets indicate that the parameter value may now be set by pushing the UP and DOWN keys. To change the next number of the IP address, push the RIGHT button. After having set all four IP address blocks, pushing ENTER once again will save the new settings.

The UP key will open the parameter MS (subnet mask) that may be changed accordingly.

Caution

The SXL II needs to be power cycled after changing and saving the network settings. After power-up it automatically starts in the USER MODE.

3.14.5 LED Indicators

The SXL II is equipped with 12 LEDs on the front panel:

 2016 Bittner Audio Int. GmbH

Figure 3.59: SXL II - LED Indicators Front Side

Page 76

3 Speciﬁcations of the Devices

LED Color Function

AMP1. . . AMP8, AX16

9x red Indicates an existing connection with the ampliﬁers via data port (Online

Status). Each LED represents 2 channels of one ampliﬁer (equivalent to the IDs). A blinking LED indicates an error.

STAT 1x red Indicates the status of the SXL II. A once-a-second heartbeat indicates

normal operation.

USER 1x

green

This LED is freely programmable via Ethernet and may be used as readout of any condition. As a special function, it may light up while data are being stored on the internal ﬂash disk (refer to Permanent Backup of Operation Modes section 3.14.9.6).

ETH 1x

Indicates connection of the SXL II to the Ethernet network

green RS–485, I2C 2x red Indicates normal operation of the system bus ALIVE 1x

Indicates normal operation of the SXL II

green POWER 1x

The SXL II is powered up

green

The SXL II is equipped with 4 LEDs on the rear panel:

Figure 3.60: SXL II - LED Indicators Rear Side

LED Color Function

TX-RX, I2C COMM 2x green Indicates activity on the system bus SXL ALIVE 1x green Indicates normal operation of the SXL II POWER 1x green The SXL II is powered up

3.14.6 Special Ports

3.14.6.1 Logical Inputs

The SXL is equipped with 8 voltage inputs. A DC voltage below 5V is interpreted as a logical 0, DC voltages between 5V and 24 as a logical 1. The interpretation is polarity independent, i.e. the + and – poles may be connected arbitrarily.

Figure 3.61: SXL II - Logical Inputs

The logical inputs may be used for the following applications:

• Recall of the 16 internal conﬁgurations

• Readout via Ethernet (e.g. conditions inside the rack, etc.)

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3 Speciﬁcations of the Devices

Caution

Page 77

The SXL II provides an auxiliary voltage (12V/100mA) for an easy connection of potential-free contact closures.

3.14.6.2 Signalization Relays

The SXL II offers 8 Signalization Relay Outputs, which are controlled by the Error Matrix (siehe Error Matrix

section 3.14.9.2).

The relays are normally closed and open in case of a fault indication.

Figure 3.62: SXL II - Signalization Relay Outputs of the Error Matrix

3.14.6.3 General Purpose Relays

The SXL II comes with two general purpose relays (GPR1 und GPR2), which may be used in the open, closed or toggle mode. They feature a switching capacity of 125 VAC /110 VDC at 0,3 A max.

Each relay offers 3 pins labeled 1, 2 and 3. Pin 2 is the joint root. If the relay is activated, pins 2 and 3 are connected. Otherwise, pins 1 and 2.

Figure 3.63: SXL II - GPR Relay Outputs

The relay offers various uses:

• Recall of arbitrary switching conﬁgurations via the 16 internal conﬁgurations

• Switching of time controlled operations e.g. line monitoring (refer to section 3.14.9.3)

• Control via the Ethernet (e.g. to allow for remote controlled switching inside the rack via Ethernet)

3.14.6.4 Signal Generator

The SXL II is equipped with a conﬁgurable signal generator.

Its audio signal is available through the output LINE MON (electronically balanced, signal(+), signal(-) and shield).

The signal generator may be used for impedance measurements in conﬁgurable time intervals (refer to

section 3.14.9.3).

Figure 3.64: SXL II - Signal Generator Output

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3.14.7 Manual Operation

3 Speciﬁcations of the Devices

The SXL II may be locally controlled using the front panel keypad icl. arrow keys. All parameters can be accessed and are displayed on the two-line LCD with 20 digits each.

Figure 3.65: SXL II - LCD and Front Panel Control

The LCD is divided into three sections:

Section Function

Line 1 – links Menu (refer to section 3.14.7.1) Line 1 – rechts Mode information (refer to section 3.14.7.2) Lnie 2 Parameters and their values (refer to section 3.14.7.1)

Example:

--------------------

CHAN.2 rw

#Gain= -19.5dB

--------------------

Explanation: The SXL II is in the CHAN menu, channel 2 is selected. The channel volume is set to –19,5 dB. The symbol # in front of the parameter indicates that it is user controllable. The abbreviation rw indicates the current entry mode.

3.14.7.1 Menus & Parameters

The menu items and their parameters are selected with the arrow keys:

• Use the keys LEFT and RIGHT to select the menu items

• Use the keys UP and DOWN to select the parameters of the menu items

The reduced size of the display requires abbreviations. Their meanings are:

Abbreviation Meaning

AMP.1 to AMP.8 Parameter per ampliﬁer (e.g. Standby) CHAN.1 to CHAN.16 Parameter per channel (e.g. Gain) LINPUTS Logical inputs RELAYS Relay outputs SXLSTAT Date & time, network settings MONITOR Monitor bus DIAG Function of the USER LED CONFIG Conﬁguration MATRIX Error matrix AX16 Parameters of the AX16

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A parameter may be changed by selecting it and pushing ENTER. The value will appear in brackets, e.g. #Standby=[ON]. It may now be changed by using the UP and DOWN keys. If a large value range needs to

be changed (e.g. volume), holding the key down will speed it up. Push ENTER to ﬁnalize the setting, CANCEL to abandon the changes.

User controllable parameters are indicated by a hash (#), e.g. #Standby=ON (refer to section 3.14.7.2).

Caution

If a connected ampliﬁer is not featuring a certain parameter, the parameter will not be displayed.

3.14.7.2 Entry & Service Modes

In the ﬁrst line’s right corner of the LCD, more information is displayed with 4 symbols.

Entry Mode

The entry mode deﬁnes how the parameters are displayed and edited. It may be selected by repeatedly pushing the MODE key:

• <w1> only indicates the writable, respectively the controllable parameters (w = write). 1 means that only the currently addressed ampliﬁer/channel may be altered.

• <w2> is similar to w1 but will also set the parameters of the associated stereo channel. The menu items are accordingly displayed, e.g. CHAN.3+4.

• <w*> is similar to w1 but the asterisk (*) represents all ampliﬁers/channels. In this mode, for example, all ampliﬁers may be set to standby at the same time or set mute at the same time.

• <rw> is similar to w1 but additionally, all values, including the read only conditions are displayed, e.g. ACStatus (= mains supply) of an ampliﬁer, etc.

Service Mode

The two following Service Mode Levels are used to protect parameters from accidental changes.

• !sm1 Service Mode Level 1 - will be started by pushing the keys UP and DOWN at the same time. The following parameters may then be changed:

– Network settings (refer to section 3.14.4.4) – Delay time when a conﬁgurations is re-called via the logic inputs (refer to section 3.14.9.1) – Continuous storage the SXL’s current condition to the intern ﬂash disk ON/OFF (refer to sec-

tion 3.14.9.6)

• !sm2 Service Mode Level 2 – will be started by pushing the keys UP and DOWN at the same time, followed by simultaneously pushing keys LEFT and RIGHT. The following parameters may then be changed:

– Toggle between manual and automatic conﬁrmation of an error ON/OFF (refer to section 3.14.9.4)

3.14.7.3 Saving and Loading of Conﬁgurations

The saving and loading of a conﬁguration on the SXL II requires two steps:

• Selection of conﬁguration number

• Loading/Saving

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The associated parameters can be found in the CONFIG menu. The sequence is:

1. Select parameter CfgNumber and set the conﬁguration number accordingly.

2. Select parameter/function CfgSave or CfgRecall. This parameter is set to OFF.

3. Setting the parameter to ON. After completing the desired changes, the parameter will automatically be set OFF again.

The parameters CfgStatus and ActualCfg may be used to check whether the procedure has been accomplished correctly. The parameter CfgStatus should show OK and the parameter ActualCfg should display the selected conﬁguration number.

3.14.8 Web Interface

As an easy way of operation, the SXL II offers a web interface. The advantages are:

• Access to all parameters (except Service Mode) and status messages

• No software installation necessary

• Software and ﬁrmware always match

Figure 3.66: SXL II - Web Interface

The web interface is made up of several ﬁles (pages). These ﬁles may be edited with any standard text or web editor. Consequently, speciﬁc requirements, e.g. illustrations in different languages, may easily be accommodated.

To use the web interface, it is necessary to:

• Connect it to a PC (directly or via an Ethernet network)

• Run a common web browser (Internet Explorer, Firefox, Safari, etc.)

• Know the IP address of the SXL

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Please follow the instructions below to activate the web interface:

• Open the web browser

• Enter the IP address of the SXL in the address line of the browser (press ENTER)

• A login mask appears. Register and ﬁnish with SUBMIT.

Caution

The default login is: Name: sxl Password: 11111 Do not use caps for the name. The password is ﬁve times the ﬁgure „one“.

Basically, working with the web interface takes this approach: Parameters to be changed need to be entered into the appropriate form ﬁeld. Then, the new values need to be transmitted to the SXL II. This may be achieved by using the appropriate button: Set, Save, Recall or Show.

Caution

Parameters not available for a speciﬁc ampliﬁer model are greyed out and cannot be changed.

In the following, the various web pages will be speciﬁed.

3.14.8.1 Status

This is a status page only and provides an overview over the condition of the SXL II and the connected ampliﬁers.

As on every page of this web interface, the navigation menu to access the different functions of the SXL II is located at the top. Its IP address and name are also displayed.

Figure 3.67: SXL II - Web Interface: Header

The main part of the page indicates the condition of the ampliﬁers/channels (4 or 8 channel ampliﬁers will be represented as a block ) and the AX16 (if present).

The right sidebar shows two sections:

• Log with the last 5 entries

• Conﬁgurations (Status, Recall and Save)

The tab Status shows a double arrow. It is being used to extend the main part of the display to show more parameters of the ampliﬁer.

Figure 3.68: SXL II - Web Interface: Expand Arrows

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3.14.8.2 Settings

3 Speciﬁcations of the Devices

This page provides access to all parameters of one ampliﬁer and its channels.

Caution

Parameters not available for a speciﬁc ampliﬁer model are grayed out.

The tab Settings shows a double arrow. It is being used to extend the main part of the display to show more parameters of the ampliﬁer.

Parameter Function

Standby Standby On/Off Power On Delay A delay may be set before powering up the ampliﬁer after receiving the command In1 and In2* These level values (–90 to +6 dB in 0.5 dB steps) and the level values of the

neighboring channel form a 2 by 2 mixer. It may be used for mixing of both

channels. Gain Output level (–90 to +6 dB in 0.5 dB steps) Mute Channel mute On/Off Inv* Phase shift of 180 degrees DSP Access to the DSP settings of a channel

* Available only for speciﬁc models

3.14.8.3 DSP

The DSP page offers all parameters and the option to save and recall up to 50 conﬁgurations. The conﬁgurations may be labeled for easier identiﬁcation.

Each DSP conﬁguration consists of the following:

• 10-Band parametric EQ

• Limiter and Compressor

• Noise Gate

• Delay

• Low und Highpass Filter (Crossover)

The dropdown menu Display Channel in the segment Settings allows for the selection and display of the DSP settings.

Figure 3.69: SXL II - Web Interface: Copy of DSP Settings

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In addition the Settings segment provides a comfortable way to copy and paste all or only selected DSP settings between ampliﬁer channels:

1. Select the channel to be copied. Alternatively all displayed DSP settings are being copied.

2. Device will select the DSP functions by clicking into the check box. To copy only the EQ settings for example, only the check box EQ is selected.

3. Channel selects the destination(s) with the 16 check boxes.

4. Clicking the Set button will copy the selected settings.

3.14.8.4 Monitoring

This page consists of three sections.

Signal Generator

The pilot tone generator works with an adjustable frequency between 19 and 22.5 kHz. The output level can be freely adjusted.

Two parameters set the intervals:

Caution

It is possible to switch relay GPR 1 or GPR 2 in the selected interval. This allows fo the use of an external signal generator (refer to Line Monitoring section 3.14.9.3).

Monitored Channels

Parameter Function

Period of check Total duration of deactivation and operation Duration of tone Active time

Figure 3.70: SXL II - Web Interface: Signal Generator

The channels to be monitored have to be selected.

Figure 3.71: SXL II - Web Interface: Monitored Channels

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Load Impedance Window

3 Speciﬁcations of the Devices

Every monitored channel will be displayed in a dedicated window.

Figure 3.72: SXL II - Web Interface: Load Impedance Window

Parameter Function

Short Threshold Indicates the lowest value of the window for impedance measurement. Values below

this value are interpreted as a short-circuit.

Open Threshold Indicates the highest value of the window for impedance measurement. Values

above this value are interpreted as opened output.

3.14.8.5 Signalization

This page consists of two sections.

Error Matrix

The 8 signalization relays may be assigned as fault indication contacts, using the Error Matrix. In this indication concept, each relay may be assigned to a certain type of defect/problem of any connected ampliﬁer. A general fault indication is generated if all types of defect are assigned to one relay.

Figure 3.73: SXL II - Web Interface: Error Matrix

Example: In the illustration above, the fault indication contacts have been assigned to logical groups. Relay 1 indicates defects of the ampliﬁer as a whole. Relay 2 is activated by channel based defects, relay 3 signalizes impedance problems.

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General Purpose Relays

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The conditions for activating the GPRs are user deﬁnable (manually or via Ethernet) and may be saved in a conﬁguration.

Caution

It is possible to switch relay GPR 1 or GPR 2 in the selected interval. This allows fo the use of an external signal generator (refer to Line Monitoring section 3.14.9.3).

3.14.8.6 Conﬁgurations

The SXL II offers the option to save up to 16 conﬁgurations. This includes all parameters of the SXL II and all devices connected to the system bus. The conﬁgurations may be labeled for easier identiﬁcation.

This page also provides status information and additional functions.

Function Description

Current SXL II

Indicates the current SXL II conﬁguration and its name Conﬁguration Result of last recall Status result of the last operation (save or recall of a conﬁguration) Default Conﬁguration Conﬁguration that is re-called at the start-up of the SXL II Delete Conﬁguration Deﬁned shows the stored conﬁgurations. Delete selects the conﬁgurations to be

deleted. Direct Control (binary) This function enables the re-calling of SXL II conﬁgurations via using the ﬁrst

four logical inputs (refer to section 3.14.9.1). Direct Control (single) Each of the eight logic inputs can be assigned to recall a conﬁguration directly

(refer to section 3.14.9.1).

The SXL II powers up with the saved data of a conﬁguration. If no conﬁguration has been set for the start-up, conﬁguration 0 will be the default. This default conﬁguration has a special status and is administrated by the SXL II. Depending on setting, conﬁguration 0 is made up of following data:

A. A copy of the lastly re-called conﬁguration 1 to 16 B. The current condition of all parameters

Point A is important if the conﬁgurations are re-called by the logic inputs (refer to section 3.14.9.1). Point B is a special function, explained under „Permanent Backup of Operation Modes“ (refer to section 3.14.9.6).

Caution

Since the SXL II may overwrite data in conﬁguration 0, it should not be used for storing user settings.

3.14.8.7 AX16

The AX16 device is an intelligent ampliﬁer switching unit that may also be connected to the SXL II via its system bus. Together, both devices form a powerful solution to guarantee a failure-free operation.

The AX16 web interface page offers mainly status information. Practically all settings are made with DIP switches on the back panel (refer to section 3.13.5). These settings are evaluated by the SXL II which takes over control of the AX16 in case of ampliﬁer error.

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AX16 shows a double arrow on its right side. It is being used to extend the main part of the display of the parameters.

The block diagram and its corresponding tabel display the functions of the individual ampliﬁers, depending on the selected mode of the AX16.

Figure 3.74: SXL II - Web Interface: Status Information

The controllable parameters are located at the lower part of the page:

Function Description

Use AX16 Deﬁnes which ampliﬁers are part of the backup switching. Force Amp error For testing purposes, an error may be simulated for the speciﬁed

ampliﬁer(s). Copy settings to backup before switch

If an ampliﬁer fails, its settings will be transferred to the backup

ampliﬁer. Split mode Activates a mode that allows the use of ampliﬁers with or without SXL II

dataport to be used with an AX16 (refer to section 3.14.9.5). 4X/8X cross routing Allows for the use of 4- and 8-channel ampliﬁers with the AX16 (refer to

section 3.14.9.5)

Copying all settings to the backup ampliﬁer is a unique Bittner Audio feature and should always be activated. If the faulty ampliﬁer and the backup ampliﬁer are of the same model, all settings will be transmitted 1 to

1. This procedure and the following switch-over will be completed after 250ms.

The copying includes all settings that are provided by the backup ampliﬁer. In any case, the system will try to maintain the same volume. To achieve this, the SXL II „translates“ the level settings of the different ampliﬁers. This feature allows for the replacement of defective ampliﬁers by models of different power, for example a XR1500 with a XR4000!

Caution

The copying of all settings to the backup ampliﬁer is a unique Bittner Audio feature and will not work with models of third-party suppliers.

3.14.8.8 Misc

Some function blocks of the SXL II have been combined on this page. They are global settings for the SXL II and will be explained in the following sections.

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Network Settings

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Network Settings shows the active network parameters.

The Parameter Authorised IP is a subnet mask, which may be used to grant only a certain range of IP addresses access to the SXL II.

Caution

Please contact your network administrator for the correct values of above parameters.

Syslog

The SXL II records every important event on its intern ﬂash disk (refer to section 3.14.8.9). To obtain more security, these record ﬁles may be mirrored via Syslog to any Host or IP address in the network and recorded there.

This also applies to other SXL II within the network. It allows to display the logbooks of all SXL II on a „Master SXL II“ by registering the IP address of the master.

Caution

Several free Syslog programs respectively deamons are available for Windows. Kiwi Enterprises, for example, (http://www.kiwisyslog.com) is a well-known supplier.

Email/SMTP

SMTP stands for Simple Mail Transfer Protocol. The SXL II is able, via an appropriate gateway in the network, to send logbook entries as emails.

To ensure trouble-free transmission of the data, the following parameters need to be set:

Function Description

Email from Sender’s address Email to Recipient’s email address SMTP Server Gateway Address

Caution

Please contact your network administrator for the correct values of above parameters.

User LED

The User LED may be utilized to signal any condition of the system. Using the control over Ethernet can be used to manually switch the LED to identify a dedicated SXL II in a Rack.

The User LED may also indicate recording data on the internal ﬂash disk (refer to Permanent Backup of Operation Modes section 3.14.9.6).

Re-start

The SXL II may be re-started from the web interface. This feature is very useful after upgrading the ﬁrmware via the network (refer to section 3.14.10.2).

To re-start, set the checkmark and click Set.

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Username and Password may be changed arbitrarily.

Device and Channel Labels

For a better identiﬁcation, the SXL II and the ampliﬁers may be labeled.

3.14.8.9 Log

The SXL II logs every important event on its internal ﬂash disk. The amount of recordable events is about

13000.

The SXL works with the Syslog Protocoll (refer to section 3.14.8.8). This protocol subdivides the events into priorities:

Priority

Emergency Alert Critical Error Warning Notice Info

Filter

The amount of the logbook entries may be recalled according to these priorities. In addition, all entries may be limited to a certain amount of time.

The Parameter IP to show is a subnet mask. It ﬁlters the readout to show only SXL II units belonging to a certain range of IP addresses.

Message

It is possible to store user messages (max. of 70 characters) in the log. This is useful for instance, to note the start and end of maintenance work.

Export

For storage reasons, the logbook may be copied to a control computer from the ﬂash disk of the SXL II.

3.14.8.10 Home

Home gives an overview of all available SXL II in a system, indicating IP address, name and status. It is also possible to navigate to the different pages of an SXL II.

Caution

Status refers only to the condition of the SXL II. It will not show the condition of an ampliﬁer.

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3.14.9 Special Functions

3.14.9.1 Conﬁguration Switching via the Logic Inputs

Page 89

The conﬁgurations of the SXL II may be also re-called via its logic inputs. This provides, for example, external control without a network connection.

Switching by the logical inputs is globally activated for the SXL II. The appropriate parameter CfgByInput is located in menu SXLSTAT and should be switched ON.

If the switching should be controlled by a mechanical multi-switch, it is important to note that the contacts may bounce electrically. This effect is typical for elastic components inside switching mechanisms. As a result, the SXL II may switch several times between two conﬁgurations.

The parameter CfgDelay in the SXLSTAT menu is used to avoid this negative effect. It is accessible in Service Mode 1 (refer to section 3.14.7.2). It deﬁnes how long the control voltages need to be applied until it is recognized by the SXL II. The delay is set by numbers between 2 and 20. These numbers need to be multiplied by 100 ms. Consequently the values range from 200 ms to 2 seconds. A value of 5 (= 500 ms) has proven to be adequate.

Binary Switching

The voltages applied to the ﬁrst 4 logic inputs are interpreted as a 4-Bit word:

Conﬁguration IN 4 IN 3 IN 2 IN 1

1 0 0 0 1 2 0 0 1 0 3 0 0 1 1 4 0 1 0 0 5 0 1 0 1 6 0 1 1 0 7 0 1 1 1 8 1 0 0 0

9 1 0 0 1 10 1 0 1 0 11 1 0 1 1 12 1 1 0 0 13 1 1 0 1 14 1 1 1 0 15 1 1 1 1

Caution

The bit-word 0000 is not listed as it is being used for a different purpose (see below).

To re-call a conﬁguration, it makes no difference whether the applied bit-word is permanently or momentarily applied. In the latter case the appropriate SXL II conﬁguration will be re-called and then conﬁguration 0, which always holds a copy of the last re-called conﬁguration (refer to section 3.14.8.6).

Example: To re-call conﬁguration 11, the bit muster 1011 should be applied to the logic inputs. The SXL II will start conﬁguration 11. The contents of conﬁguration 11 will then be copied to conﬁguration 0. After disconnecting the control voltages, the SXL II switches to conﬁguration 0 which is now identical to conﬁguration 11.

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Direct Switching

3 Speciﬁcations of the Devices

The eight logic inputs may be used to directly recall a conﬁguration. It is irrelevant how long the control voltage is applied to the input.

3.14.9.2 Error Matrix

In the case that the SXL II is not integrated into a network, it is still possible to provide an error indication. The error matrix offers 8 fault indication contacts. Every relay may be allocated to a certain type of defect.

Type of Defect Description

AC Status Mains fuse or mains supply failure Protect Ampliﬁer channel in protect mode Line Monitor* Impedance measurement could not be accomplished Load Short* Impedance below lower limit Load Open* Impedance above upper limit Overheat* Critical temperature Ofﬂine Ampliﬁer does not answer via data bus

* This function is available for certain devices only

The allocation of the relays applies to all connected ampliﬁers. In case of a defect, the 8 LEDs on the front of the SXL II (section 3.14.5) will indicate which ampliﬁer is affected.

Although, the 8 relays may be programmed to indicate different types of defects (refer to section 3.14.8.5), a general default indication is usually required instead. This may be created by allocating all types of defect to one relay only.

It is also possible to combine the error matrices of several SXL II. To achieve this, every SXL II is set to the same relay allocation. The relays of each SXL II are then either wired in series (released contacts).

Caution

“Released relay contacts in case of defect” are the regular case in installations. The SXL II works accordingly: In case of error-free operation of the connected ampliﬁers, the relays are active. In case of an error (including a failure of the mains supply of the SXL II) all relays release.

3.14.9.3 Line Monitoring

The SXL II may be used as a low impedance line monitoring device together with appropriately equipped Bittner Audio ampliﬁers. If required, the measurements may be accomplished in intervals less than 100 seconds to provide full compliance with EN–60849.

The following functions and parameters are involved in the line monitoring (also refer to section 3.14.8.4):

• Signal Generator

• Parameter LoadSigChk per ampliﬁer channel

• Parameter Short Threshold and Open Threshold for impedance window

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The following illustration shows the principal lay-out. The diagram shows an uninterrupted monitoring of the audio path in compliance with the EN–60849:

Figure 3.75: SXL II - Line Monitoring

The paging system is responsible for the monitoring from microphone capsule to its own inputs, whereas the SXL II monitors the rest of the audio chain. Every 90 seconds the signal generator switches a 20 kHz pilot tone for 10 seconds to the transmission chain. During the 10 seconds, the SXL II measures the impedance of the ampliﬁer channels of interest (parameter LoadSigChk). In the case that the measured value is not within the impedance window, an error will be displayed.

To ensure a reliable measurement, a sufﬁciently high output level is required. This level averages at about 1 to 2 Watts, depending on the ampliﬁer model. Therefore, the line length and its corresponding losses are important.

At very low levels (close to the lower limit), the measurement taken during the ﬁrst few minutes after turning on the ampliﬁer may yield inaccurate results. To avoid misunderstandings, the system offers the parameter LoadSig start after to delay the ﬁrst measurement after power-on. A value of 600 s (= 10 minutes) has proven to be adequate.

3.14.9.4 Error Acknowledgment

A possible ampliﬁer problem will be indicated by a blinking AMPLIFIER LINK STATUS LED on the front panel of the SXL II (refer to section 3.14.5) and by a short description on the LCD (refer to section 3.14.12). In addition, the error is recorded to the logbook (refer to section 3.14.8.9).

To meet the safety requirements of today’s installations, a detected error needs to be conﬁrmed after its clearance. The conﬁrmation results in two events:

• The SXL II tests whether the error has really been removed or still exists

• If the test has been successful, the veriﬁcation will be recorded to the logbook

It is not possible to conﬁrm an error via the network. Therefore, it is necessary to perform the following steps on the front panel of the device:

• After an error has been detected, the display of the SXL II enters the ErrMatrix menu automatically and shows the appropriate error codes under LastErr (refer to section 3.14.12).

• Pushing the DOWN key once will go to the parameter ErrorClr. Its value is OFF.

• Push ENTER and UP or DOWN to set its value to ON.

• Complete the setting with ENTER. The SXL II will automatically start the veriﬁcation (this may take up

to 10 seconds).

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• In case the error has been removed, the AMPLIFIER LINK STATUS LED will permanently light up again.

This safety feature is certainly not needed in every installation. Therefore, it may be deactivated. The necessary parameter ClrErrorAuto in the menu SXLSTAT is only available after the activation of Service Mode 2 (refer to section 3.14.7.2).

Caution

If the conﬁrmation of errors is deactivated, the SXL II will no longer be compliant with safety requirements. Therefore, it may be deactivated only in appropriate installations.

3.14.9.5 Backup Switching

The SXL II works seamlessly with the Bittner Audio Intelligent Backup Switch AX16. This device may be connected to the SXL II via the system bus. Combined, the two devices offer a powerful solution for uninterrupted operation.

In case of error of an ampliﬁer, the SXL II is in direct control of the switching to the backup ampliﬁer:

• The SXL II copies every setting of the defective ampliﬁer to the backup ampliﬁer

• The SXL II transmits the ID of the failed ampliﬁer to the AX16

• The AX16 switches to the backup ampliﬁer

This whole procedure will take only 250ms.

If the defective ampliﬁer and the backup ampliﬁer are not of the same model, the SXL II will copy as many settings as possible. Different gain structures of the ampliﬁers are considered in advance and will – if possible – be made up for.

The Force Amp Error function of the web interface (refer to section 3.14.8.7) offers a comfortable way to test the combination of SXL II, AX16 and ampliﬁers, as well as their wiring. Every possible type of defect may be tested.

Split Mode

Split Mode allows for the simultaneous operation of ampliﬁers with or without SXL II data port with an AX16. Every combination or group is possible. Please note that that the ampliﬁers of a group (7+1, 3+1 or 1+1) have to be of the same type (i.e. low impedance or 100V).

Split Mode may be activated in the web interface of the SXL II on page AX16 (refer to section 3.14.8.7).

Please mind the followint points:

• Ampliﬁers without a dataport will be connected to the AX16 using the alive relay. The corresponding DIP switch has to be set to the ON position (refer to section 3.13.5.2).

• Ampliﬁers with dataport have to be connected with the appropriate cable. The corresponding DIP switch has to be set to the OFF position (refer to section 3.13.5.2).

• DIP switch 3 of the AX16 has to be set to the ON position (refer to section 3.13.5.4).

Caution

The 4X/8X cross cabling is not available in Split Mode.

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4X/8X Cross Routing

Page 93

If 4- and 8-channel ampliﬁers are to be connected to an AX16, it is necessary to bear in mind that these ampliﬁers have only one power supply per 4 channels. In case of a defect it may be therefore necessary to replace not only 2 but 4 channels.

Cross cabling ensures that the defective module (2 channels) is not connected to the same power supply.

If a complete replacement of defective 4- or 8channel is required, the AX16 has to be set to the 3+1 or 1+1 mode. This ensures the availability of at least 4 replacement channels.

Figure 3.76: SXL II - Cross Routing for 4X/8X Operation

3.14.9.6 Permanent Backup of Operation Modes

After powering up and its initialization, the SXL II conﬁgures all connected ampliﬁers. Thereby, it recalls the stored ﬁles of a conﬁguration. There are three different possibilities:

A. A certain conﬁguration is recalled B. The last active conﬁguration is recalled C. All last active settings are restored

In case A, the appropriate number 1 to 16 of the conﬁguration is set in the SXL II. The factory default is number 1.

In case B, the conﬁguration 0 is set, as it always contains a copy of the last active conﬁguration (refer to

section 3.14.8.6).

C is an extension of B, as possible changes (e.g. via the Ethernet) may also be restored after recalling a conﬁguration. It needs to be explicitly activated.

The necessary parameter KeepActCfg is accessible via Service Mode Level 1 (refer to section 3.14.7.2). It may be accessed under the CONFIG menu. When activated (set value to ON), the value of the parameter DefaultCfg is automatically set to 0 at the same time.

To test this function, it is recommended to set the USER LED in such a way that it indicates the writing of data to the internal ﬂash disk. Set the parameter LedScr in the DIAG menu to the KeepActWr value. Now, if any other parameter is being changed, it will be stored after at least 3 seconds on the internal ﬂash disk. The USER LED will indicate this activity by a short illumination.

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3.14.10 Software & Files

3 Speciﬁcations of the Devices

There are ﬁve different categories of data ﬁles stored on the internal ﬂash disk or a SD card:

Category Storage Location

Firmware Internal Flash Disk System Settings Internal Flash Disk Web Interface SD Card Conﬁgurations SD Card Logbook Internal Flash Disk

The SD card is of the off-the-shelf type. If the card is missing, it will be indicated in the LCD in short intervals.

The SXL II will operate without the SD card, however, the web interface will not be available and only conﬁguration 0 may be recalled.

3.14.10.1 FTP

The ﬁles may be transferred and downloaded from any computer by using FTP (File Transfer Protocol). Any FTP program (e.g. FileZilla) should work. For more advanced users it is also feasable to use the command line.

Caution

The default login is: Name: sxl Password: 11111 Do not use caps for the name. The password is ﬁve times the ﬁgure „one“.

The content of the SD card appears after a successful connection to the FTP program. For safety reasons the ﬁles of the internal ﬂash disk will not be viewable.

However, to transfer ﬁles to the internal ﬂash disk the data need to be copied to the SD card. After a re-start the SXL II will copy the data automatically to the internal ﬂash disk.

3.14.10.2 Firmware

The ﬁrmware of the SXL II is a ﬁle with nearly 1 MB and built as follows:

sxl <ﬁrmware version> _APP . s19

Example: sxl0465_APP.s19

After connecting to a FTP program, the data ﬁles of the SD card will be visible. The new ﬁrmware will be automatically copied to the root directory. The transmission will take only a few seconds and is indicated on the LCD of the SXL II.

The SXL II needs to be re-started. This may be comfortably done one of four ways:

• Web Interface - The function is located in the „Misc“ menu (refer to section 3.14.8.8)

• Transmission of the „restart.cm“ ﬁle per FTP. The FTP connection will be automatically closed after the

ﬁle transfer.

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3 Speciﬁcations of the Devices

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• Press Reset (subjacent on the SXL II frontpanel)

• Switch the SXL II Off and On again.

During a re-start the SXL II will move the new ﬁrmware from the SD card to the internal ﬂash disk.

Caution

Copying the ﬁrmware to the SD card with a card-reader unit and putting the card back into the SXL II will not work! For the installation process an FTP transmission is mandatory.

3.14.10.3 System Settings

The system settings of the SXL II will be stored under the following name:

sxl_usr.s19

Although this system ﬁle is stored on the internal ﬂash disk it will be listed in the directory of the SD card for easy access. It can be downloaded per FTP.

If a system ﬁle is copied to the SXL II via FTP (for example a backup copy) the ﬁle will be directly stored on the internal ﬂash disk.

Caution

Copying the ﬁrmware to the SD card with a card-reader unit and putting the card back into the SXL II will not work! For the installation process a FTP transmission is mandatory.

3.14.10.4 Web Interface (Files)

The web interface of the SXL II is made up of several ﬁles. These ﬁles can be found in the subdirectory Web of the SD card.

The ﬁles may be up- and downloaded via FTP. It is also possible to edit the SD card in a card reader unit with a PC.

Caution

It is not necessary to re-start the SXL II after the transmission of one or several ﬁles of the web interface is completed. The changes are immediately available after a refresh in the browser. The update of the ﬁrmware of the SXL II may require an update of the web interface to display possible new functions.

3.14.10.5 Conﬁgurations

SXL II Conﬁgurations

Every SXL II conﬁguration is stored in a single ﬁle on the SD card. SXL II conﬁgurations are identiﬁed as follows:

sxl <conﬁguration number> . cfg

The conﬁguration numbers range from 0 to 16.

Example: sxl8.cfg is the SXL II conﬁguration 8.

A .cfg ﬁle is only available if the SXL II conﬁguration has been saved under this speciﬁc number.

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Caution

3 Speciﬁcations of the Devices

After its recovery, an SXL II conﬁguration may be called immediately. There is no need to re-start the SXL II.

DSP Conﬁgurations

Every DSP conﬁguration is saved in a single ﬁle on the SD card. DSP conﬁgurations are identiﬁed as follows:

dsp <conﬁguration number> . cfg

The conﬁguration numbers range from 1 to 50.

Example: dsp23.cfg is the DSP conﬁguration 23

A .cfg ﬁle is only available if the SXL II conﬁguration has been saved under this speciﬁc number.

Caution

After its recovery, an SXL II conﬁguration may be called immediately. There is no need to re-start the SXL II.

3.14.10.6 Logbook

The SXL II logs every important event on its internal ﬂash disk. The logbook can be exported via the web interface (refer to section 3.14.8.9).

3.14.11 Ampliﬁer Functions

The following table shows the parameters available on different ampliﬁer models.

If a parameter is not listed/available for an ampliﬁer, the device will also not feature the corresponding hardware parts (e.g. relays, sensors, etc.) for it.

Functions (second column) marked with a # are controllable parameters. All other functions are status values.

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3 Speciﬁcations of the Devices

Ampliﬁer Functions Standby Mode # x x x x Mains Supply x x x x Model x x x x Firmware Revision x x x x Delay Power On # x x x x Online x x x x Mode of Operation x x Number of Channels x x x x Alive x x x x Channel Functions Input Active* # Input Inverted # x Mute # x x x x Gain # x x x x Clip x x x x Protect x x x x Input Level x Output Peak Voltage x x Output Peak Current x x Temperature x x Monitor Output Bus A # x Monitor Output Bus B* # Monitor Output Inverted* # Monitor Gain # x Output Power x x Output Load Impedance x x Load Short x x Load Open x x Short Threshold # x x Open Threshold # x x Paging Input # x Headroom x Input Sensitivity # x DSP # x

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XR DSP 4X/4Xi/4Xe 4X DUAL 8X

* These functions were used in former ampliﬁer models

3.14.12 Error Codes

Because of the limited space of the LCD, abbreviations have to be used. Therefore error codes are made up of:

• Device name (2 letters)

• Device number (2 ﬁgures)

• Parameters (3 letters)

The individual designations are separated by a point to increase readability. The parameter is abbreviated with its ﬁrst 3 letters.

The error codes are:

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3 Speciﬁcations of the Devices

Device Name Device Number Error Code Explanation

NONE 1 NonePar Non Error-free AMP 01 to 08 ACStat ACS Mains supply /fuse AMP 01 to 08 Online Onl Communication system bus AX16 1 ACStat ACS Mains supply /fuse AX16 1 Online Onl Communication system bus CHAN 01 to 16 Protect Pro Channel switched off CHAN 01 to 16 Temprt Tem Temperature above 80◦C CHAN 01 to 16 ShortOut Sho Impedance below lower limit CHAN 01 to 16 OpenOut Ope Impedance above upper limit CHAN 01 to 16 LoadImp LInv Impedance could not be measured

Example: A communication error with ampliﬁer ID 5 would show up as AMP.06.Onl.

Caution

Please note that the way of counting the device numbers starts with 1, contrary to the IDs that start with 0.

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4 General Technical Information Page 99

4 General Technical Information

4.1 Decibel

A decibel is a logarithmic scale commonly used to express differences in signal levels. It is useful in audio because it can express a wide dynamic range with relatively small numbers (or a small movement on a meter), and it more closely matches how we perceive sound.

The measurement quoted in dB describes the ratio between the quantity of two levels, the level being measured and a reference.

The absolute quantity of the signal is not relevant. This means that decibels are always comparing one quantity to another. For example, when we measure gain in dB, we are comparing the output level to the input level.

To describe an absolute value, the reference point must be known. There are different reference points deﬁned.

dBV represents the level compared to 1 Volt RMS. 0 dBV = 1 V with no reference to impedance. dBu represents the level compared to 0.775 Volt RMS on an unloaded, open circuit.

dBm represents the power level compared to 1 mWatt. This is a level compared to 0.775 Volt RMS across a 600 Ohm load impedance.

1 dBV equals +2.2 dBu, +4 dBu equals 1.23 Volt RMS, the reference level of –10 dBV is the equivalent to a level of –7.8 dBu.

Headroom is a measure (usually in dB) of how much higher the peaks of a signal can be compared to the nominal level without clipping. That is, it compares the peak level (in volts RMS) to the nominal level (in volts RMS). The difference between the two (in dB) is the headroom.

4.2 100 V

100V-Systems are referred to as constant-voltage distributed audio systems. The constant voltage system is the most economical way to install a multi-speaker sound reinforcement system.

The term 100V system relates to the maximum output voltage of the ampliﬁer. 100V is the usual voltage in Europe, 70V in the United States. A higher voltage up to 200V can also be used for very long cable runs and higher power requirements.

To generate this high voltage, the ampliﬁer is equipped with a step-up transformer, which transforms the regular output voltage, in the 15 to 30 Volts range, up to the necessary 100V (or 70V respectively).

A 100V-loudspeaker is equipped with a step-down transformer with a relatively high input impedance. The transformer’s output impedance matches the included chassis’ impedance (usually 8 Ohms). The ratio between the low output impedance of the ampliﬁer and the transformer input impedance of the individual speaker is usually between 1:100 and 1:1000.

Directly proportional to the maximum output power of the ampliﬁer, each 100V ampliﬁer matches a certain minimum impedance than can be connected to this output. It does not matter how the connected impedance is achieved. A large number of smaller speakers (with high input impedance at their step-down transformers) or a small number of larger speakers (with lower impedance) can be connected to the 100V line. Any

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combination of different 100V-loudspeakers is possible, as long as the total impedance of the 100V line doesn’t fall below the minimum impedance of the ampliﬁer’s output.

The real output voltage of the ampliﬁer during the transmission of music or speech is mostly far less that the maximum 100V, proportionally representing the input signal. The term 100V deﬁnes the maximum voltage in the system in the same way as the term +6 dB deﬁnes the maximum level for a line signal.

4 General Technical Information

4.3 Measuring Ampliﬁer Power

The output power of an ampliﬁer is most of the time the only criterion to evaluate its performance and quality. For the sake of a quick comparison of different models and manufacturers we tend to forget other important factors like its ability to control EMF (Electro-motoric Force). Unfortunately this comparison at a glance is really misleading as most of the data presented have little or no value at all.

Bittner Audio always provided only one type of output power data: continuous output from 20 Hz to 20 kHz. This sine wave is not representing a real-world music signal, but it makes an excellent statement about the durability of the power supply and the efﬁciency of the ampliﬁer.

Such a test easily reveals whether a transformer is too weak or that the power supply is converting too much energy into heat. If this is the case, the mains will be quickly overloaded or the ampliﬁer gets so hot that it reaches its thermal capacity.

Continuous power output has been sufﬁcient for many years to determine whether an ampliﬁer is adequately powered for a given application. In fact, other testing procedures have been considered unprofessional and insufﬁcient.

However, new developments require new methods of testing. High power ampliﬁers with an output of more than 1000 watts per channel are a commodity nowadays. Measuring an ampliﬁer of for example 4000 watts will lead to serious problems if the traditional procedures are applied: driven with a sine wave into its nominal load (i.e. 4 ohms) it will draw more than 6000 watts or 25 A from the supplies. Most mains-fuses will blow during this test and it is most likely illegal to replace the fuse with the next higher value. . .

How can ampliﬁers of this magnitude be operated from regular mains at all? The answer is rather simple: even highly compressed music material like Rave/Dance or alarm signals are not comparable to a full power continuous output.

Therefore, most manufacturers decided to publish their data according to the following „real-world“ testing procedure: the maximum output power of an ampliﬁer will be measured with a 1 kHz sine wave with a 33.3 ms on-time followed by 66.6 ms off-time. This test is closer to music program and will indicate a higher power, however, there will be no excessive draw on the mains, and fuses will stay intact. As a continuous power output 1/8 or 1/3 load is chosen.

Although this is closer to reality it also delivers values that cannot be veriﬁed applying the traditional testing procedures: a 2000 watts per channel ampliﬁer tested with a burst signal delivers a continuous power output of approximately 650 watts (1/3 load) or 250 watts (1/8 load).

Unfortunately, it is still not possible to compare the products of different manufacturers. Neither are similar methods applied, as it is not really clear what a burst signal is made of, nor are the conditions known under which the results have been achieved. Therefore, if continuous output power data are available, they are still a good means to evaluate performance and durability. Please keep in mind that professional power ampliﬁers should be tools that have been designed for untroubled continuous operation to justify the investment.

 2016 Bittner Audio Int. GmbH

bittner XB400, XB800, XB1600, XB2500, XV400 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

The ampliﬁers series BASIC, XB and XR are equipped with a Ground Lift switch on the back side of the unit.

Figure 2.10: Alive Contact

Device Data Port

The tab Status shows a double arrow. It is being used to extend the main part of the display to show more parameters of the ampliﬁer.

The tab Settings shows a double arrow. It is being used to extend the main part of the display to show more parameters of the ampliﬁer.

Home gives an overview of all available SXL II in a system, indicating IP address, name and status. It is also possible to navigate to the different pages of an SXL II.

Firmware Internal Flash Disk System Settings Internal Flash Disk Web Interface SD Card Conﬁgurations SD Card Logbook Internal Flash Disk