Lab.gruppen C 20:8X Operation Manual page 7

Dedicated installation amplifiers

Operation manual (33 pages)

Installation manual (7 pages)

Specifications (1 page)

Table of Contents

5.3.2

Headroom, sensitivity and VPL / Gain settings ........................................................................... 15

5.4

Audio Input and Output connections, setup and features ................................................................... 15

5.4.1

Balanced / Unbalanced Input connection ................................................................................... 15

5.4.2

Output operation and connection ............................................................................................... 16

5.4.3

Output bridge mode ................................................................................................................... 16

5.4.4

Amplifier input Gain .................................................................................................................... 17

5.4.4.1

Channel gain/level (front-panel pots) ...................................................................................... 17

5.4.5

Amplifier sensitivity ..................................................................................................................... 18

5.4.6

Output Voltage Peak Limiter (VPL) ............................................................................................. 18

5.4.7

Constant voltage 70 V and 100 V systems setup and operation ................................................. 19

5.4.8

Output Current Peak Limiter (CPL) ............................................................................................. 19

5.5

GPIO connection and operation .......................................................................................................... 20

5.5.1

Introduction ................................................................................................................................ 20

5.5.2

7.5.2 General Purpose Outputs (GPO) ........................................................................................ 20

5.5.3

General Purpose Inputs (GPI) ..................................................................................................... 20

5.5.4

NomadLink disable switch .......................................................................................................... 21

5.6

Protection, faults and warnings ........................................................................................................... 21

5.6.1

Introduction ................................................................................................................................ 21

5.6.2

Very High Frequency protection ................................................................................................. 21

5.6.3

DC protection ............................................................................................................................. 22

5.6.4

High-impedance warning (open load) ......................................................................................... 22

5.6.5

Low-impedance protection (short circuit) .................................................................................... 22

5.6.6

Temperature protection .............................................................................................................. 23

5.6.7

Power Average Limiter (PAL) ....................................................................................................... 23

5.6.8

Level indicators .......................................................................................................................... 24

5.6.9

Level adjust ................................................................................................................................ 25

5.6.10

Mute indication ........................................................................................................................... 25

5.6.11

Performance, Warning and Fault indicators ................................................................................ 25

5.7

NomadLink network and DeviceControl software ............................................................................... 26

5.7.1

NomadLink network in the amplifiers .......................................................................................... 26

5.7.2

Connection and setup ................................................................................................................ 27

5.7.3

NomadLink network cable lengths ............................................................................................. 28

5.7.4

Ethernet network cable lengths ................................................................................................. 28

5.7.5

DeviceControl software .............................................................................................................. 29

5.7.6

Third Party Control and Monitoring Capabilities ..........................................................................30

Appendix .................................................................................................................................................30

6.1

Maintenance .......................................................................................................................................30

6.2

FAQ .....................................................................................................................................................30

6.3

Additional documentation ................................................................................................................... 31

6.4

Current Draw and Thermal Dissipation specification ........................................................................... 32

6.5

Signal flow and VPL to output measurements .....................................................................................36

Technical Specifications .......................................................................................................................37

Warranty .................................................................................................................................................38

C Series C 20:8X, C 10:8X, C 10:4X and C 5:4X Operation Manual rev. 1.1.4

Table of Contents