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  5. Operation Manual

Lab.gruppen C 16:4 Operation Manual

Other manuals for C 16:4: Technical Data, Operation Manual

Summary of C 16:4

  • Page 1

    Rev. 2.2.3 item no. Om-cs operation manual c series dedicated installation amplifiers ▸ c 88:4 ▸ c 68:4 ▸ c 48:4 ▸ c 28:4 ▸ c 16:4 operation manual.

  • Page 2

    C series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3.

  • Page 3

    1. Important safety instructions i c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 1. Important safety instructions before using the device, be sure to carefully read the safety instructions. Keep this document with the device at all times 1.1 important safety instructi...

  • Page 4

    Ii 1. Important safety instructions c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 1.4 warning to reduce risk of fire or electric shock, do not expose this apparatus to rain or moisture. Français: pour réduire les risques de blessure ou le choc électrique, n’exposez pa...

  • Page 5

    1. Important safety instructions iii c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 1.7 user responsibility 1.7.1 mains connection grounding your amplifier must be connected to a grounded socket outlet. 1.7.2 speaker output hazard on amplifiers power amplifiers are cap...

  • Page 6

    Iv table of contents c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 table of contents 1. Important safety instructions ....................................................................................................................I 1.1 important safety instruction...

  • Page 7

    Table of contents v c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 5.3.2 headroom, sensitivity and vpl / gain settings ................................................................................ 14 5.4 audio input and output connections, setup and features ..........

  • Page 8

    1 2 welcome c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 2 welcome 2.1 introduction thank you for choosing lab.Gruppen c series power amplifiers for your sound reinforcement system installa- tion. We are confident that you will be very pleased with the performance, c...

  • Page 9

    2 welcome 2 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 2.2 main features your new c series amplifier incorporates a number of sophisticated technologies – many of them proprietary to lab.Gruppen – that are provided to ensure the best possible performance and many y...

  • Page 10

    3 2 welcome c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 ▸ dc protection ensures destructive dc signals will not appear at the amplifier outputs. If such conditions occur an internal fuse opens and fault indication is displayed. ▸ low impedance (short circuit) protec...

  • Page 11

    3. Installation 4 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 3. Installation 3.1 unpacking carefully open the shipping carton and check for any noticeable damage. Every lab.Gruppen amplifier is tested and inspected before leaving the factory and should arrive in pe...

  • Page 12

    5 3. Installation c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 3.3 cooling the amplifier uses a forced-air cooling system with air flow from front-to-rear, maintaining a low operating temperature within defined limits. Front-to-rear airflow is preferred as cooler air...

  • Page 13

    3. Installation 6 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 3.4 operating voltage the label placed to the right of the mains cable on the rear of the amplifier indicates the ac mains voltage for which the amplifier is wired and approved: 115 v or 230 v. Connect th...

  • Page 14

    7 4. Quick guide overview c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 4. Quick guide overview 4.1 front panel overview the amplifier’s front panel presents the performance and fault condition indicators, power and remote switch- es, and a removable dust-filter cover...

  • Page 15

    4. Quick guide overview 8 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 ▸ temperature mute (yellow constant) ▸ vhf (very high frequency) protection active (output muted) (yellow) ▸ mute channel via nomadlink network (2x yellow) ▸ cpl (current peak limiter) active (ora...

  • Page 16

    9 4. Quick guide overview c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 4.2 rear panel overview mains input 115 v and 230 v operation (not selectable) nomadlink network in and out on ethercon- housed rj45 connections dip-switches for adjusting key features (see below)...

  • Page 17

    4. Quick guide overview 10 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 mode - select vpl mode to either hard or soft operation. For channels driving sub-woofers and low-fre- quency drivers, it is recommended to use the hard setting for optimal operation. For mid- an...

  • Page 18

    11 4. Quick guide overview c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 in out nomadlink in out nomadlink nomadlink in out ethernet general purpose input, gpi ethernet crossed rj45 ethernet cable between nlb 60e and pc. If bridge is connected to switch of hub, use " ...

  • Page 19

    5. Operation and performance 12 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 5. Operation and performance 5.1 introduction the following sections provide comprehensive information on amplifier connection, setup, operation, and performance. The detailed information in...

  • Page 20

    13 5. Operation and performance c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 sensing circuits also transmit local amplifier module temperature and power supply temperature to the ap- propriate protection mechanisms. Read the protection, faults and warnings section fo...

  • Page 21

    5. Operation and performance 14 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 5.3.2 headroom, sensitivity and vpl / gain settings the input amplifier and limiter system is designed to accommodate extremes of performance. Typically, exceeding maximum input by much as +...

  • Page 22

    15 5. Operation and performance c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 5.4 audio input and output connections, setup and features 5.4.1 balanced / unbalanced input connection two electronically balanced phoenix-type inputs are available. Follow the +,– and grou...

  • Page 23

    5. Operation and performance 16 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 the main benefit of bridging the output is a doubling of output voltage. Bridging can be used to turn the amplifier into a three-channel amplifier with, for example, 2 x 1200 w and 1 x 2400 ...

  • Page 24

    17 5. Operation and performance c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 since c series amplifiers are capable of providing multiple maximum output power levels through use of the vpl feature, many sensitivity calculations may be required for a single amplifier. ...

  • Page 25

    5. Operation and performance 18 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 5.4.7 output current peak limiter (cpl) the current peak limiter (cpl) ensures that the amplifier will not be damaged by trying to deliver current to the outputs exceeding the physical limit...

  • Page 26

    19 5. Operation and performance c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 5.5 protection, faults and warnings 5.5.1 introduction the c series amplifiers incorporate a sophisticated and comprehensive set of protection features. Faults and warnings are indicated on ...

  • Page 27

    5. Operation and performance 20 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 the attack time for the vhf protection is increasingly shorter at higher frequencies. For example, an ultrasonic continuous signal will cause the outputs to mute rapidly, where it will take ...

  • Page 28

    21 5. Operation and performance c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 5.5.7 temperature protection thermal measurement points are provided on each output channel as well as on the power supply. If these sensors detect temperatures above the specified maximums,...

  • Page 29

    5. Operation and performance 22 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 5.6 front-panel monitoring and adjustments 5.6.1 level indicators four signal/level/clip leds per channel are contained on the c series front panels : ▸ orange cpl (current peak limiter) fla...

  • Page 30

    23 5. Operation and performance c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 5.6.3 mute indication individual channel mute is indicated by illumination of the two yellow leds at the top of the channel’s led bargraph. If both leds are illuminated and all other indicat...

  • Page 31

    5. Operation and performance 24 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 the amplifier does not have a stand-by power supply for the network. The network is solely powered from the nlb 60e. Should an amplifier fail or be inadvertently disconnected from the mains,...

  • Page 32

    25 5. Operation and performance c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 5.7.3 nomadlink network cable lengths in situations where the amplifiers and the nlb 60e will be positioned in different locations at some distance from each other, or where groups of amplif...

  • Page 33

    5. Operation and performance 26 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 5.7.5 devicecontrol software devicecontrol is lab.Gruppen’s proprietary software application for monitoring and controlling networked fp+ series and other lab.Gruppen nomadlink-ready power a...

  • Page 34

    27 6. Appendix c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 6. Appendix 6.1 maintenance during normal operation your c series amplifier will provide trouble-free service. The only user maintenance required is to periodically vacuum clean the foam dust filters behind ...

  • Page 35

    6. Appendix 28 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 q: how can i be sure that no protection circuits or safety functions interfere with the output signal? A: if no clip or warning leds on the front-panel light up, you can be fully confident that the rated max...

  • Page 36

    29 6. Appendix c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 c 68:4 level load rated power line current *2) watt *1) thermal dissipation 115 vac 230 vac in out dissipated btu/hr kcal/hr standby with remote power off via nomadlink 0 0 0 0 0 powered on, idling. 133 0 13...

  • Page 37

    6. Appendix 30 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 c 48:4 level load rated power line current *2) watt *1) thermal dissipation 115 vac 230 vac in out dissipated btu/hr kcal/hr standby with remote power off via nomadlink 0 0 0 0 0 powered on, idling. 123 0 12...

  • Page 38

    31 6. Appendix c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 c 28:4 level load rated power line current *2) watt *1) thermal dissipation 115 vac 230 vac in out dissipated btu/hr kcal/hr standby with remote power off via nomadlink 0 0 0 0 0 powered on, idling. 123 0 12...

  • Page 39

    6. Appendix 32 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 c 16:4 level load rated power line current *2) watt *1) thermal dissipation 115 vac 230 vac in out dissipated btu/hr kcal/hr standby with remote power off via nomadlink 0 0 0 0 0 powered on, idling. 129 0 12...

  • Page 40

    33 7. Technical specifications c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 7. Technical specifications following are the c series technical specifications. These figures are accurate at the time of printing but please note that all figures are subject to change with...

  • Page 41

    8. Warranty 34 c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 8. Warranty general this product is manufactured by lab.Gruppen, and it is warranted to be free from any defects caused by components or factory workmanship, under normal use and service, for a period of six...

  • Page 42

    35 8. Warranty c series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3 technical assistance and service international if your lab.Gruppen product requires repair, contact your dealer or distributor, or contact lab.Gruppen by fax or email to obtain the location of the nearest au...

  • Page 43

    C series c 88:4, c 68:4, c 48:4, c 28:4 and c 16:4 operation manual rev 2.2.3.

  • Page 44

    L a b . G r u p p e n a b ► s w e d e n i n t e r n a t i o n a l c o n t a c t ► i n f o @ l a b g r u p p e n . C o m u s c o n t a c t ► i n f o @ t c g - a m e r i c a s . C o m w w w . L a b g r u p p e n . C o m operation manual.