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Lab.gruppen C 16:4 Operation Manual

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

Summary of C 16:4

  • Page 1

    Rev. 2.01 operation manual c series: installation-dedicated amplifiers • c 68:4 • c 48:4 • c 28:4 • c 16:4 part no. Um-cs.

  • Page 2: 1  Contents

    C series operation manual 1 contents ................................................................................................................................................. Approvals ..............................................................................................................

  • Page 3: Contents  1

    C series operation manual 3 7.4.2 output operation and connection ...........................................................................................16 7.4.3 output bridge mode ...............................................................................................................16 7...

  • Page 4: 2  Approvals

    4 c series operation manual this equipment conforms to the requirements of the emc directive 89/336/eec, amended by 92/31/eec and 93/68/eec and the requirements of the low voltage directive 73/23/eec, amended by 93/68/eec. Standards applied: emc emission en55103-1, e3 emc immunity en55103-2, e3, wit...

  • Page 5: Warnings  3

    C series operation manual 5 warnings 3 3.3 user responsibility 3.3.1 mains connection grounding your amplifier must be connected to a grounded socket outlet. 3.3. Speaker output hazard power amplifiers are capable of producing hazardous output voltages. To avoid electrical shock, do not touch any ex...

  • Page 6: 4  Welcome

    6 c series operation manual 4 welcome 4.1 introduction thank you for choosing lab.Gruppen c series power amplifiers for your sound reinforcement system installation. We are confident that you will be very pleased with the performance, configuration flexibility, reliability, and long-term durability ...

  • Page 7: Welcome  4

    C series operation manual 7 avoiding a poor signal-to-noise ratio. This gain adjust- ment feature makes it easier to achieve an optimal balance between headroom and noise floor. 4..3 voltage peak limiting the voltage peak limiting (vpl) feature allows user adjustments that determine maximum voltage ...

  • Page 8: 5  Installation

    8 c series operation manual 5.1 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 perfect condition. If any damage is discovered, please notify the shipping company imm...

  • Page 9: Installation  5

    C series operation manual 9 amplifier can be turned on using the front panel power switch. The amplifier then goes through a soft-start sequence as it self-checks its circuits. The fans will blow at high speed before dropping to idle, and the “power” led will illuminate. Inrush power is controlled a...

  • Page 10: 6  Quick Guide Overview

    10 c series operation manual 6 quick guide overview the amplifier’s front panel presents the performance and fault condition indicators, power and remote switches ,and a removable dust-filter cover. Four level potentiometers located behind the cover provide individual attenuation for the four amplif...

  • Page 11: Quick Guide Overview  6

    C series operation manual 11 quick guide overview 6 44db 41db 38db 35db 32db 29db 26db 23db 141v* 118v 100v** 85v 71v 59v 50v 42v *100vrms **70vrms ser. N:o removed! Speaker outputs balanced inputs ch d ch b ch c ch a wiring normal: class 2 bridged: class 3 push push must be grounded made in sweden ...

  • Page 12: 6  Quick Guide Overview

    1 c series operation manual 6 quick guide overview 6.3 nomadlink / ethernet network setup the amplifier includes, as a standard feature, internal facilities for the nomadlink monitoring and control network. All features of the nomadlink network are accessible via a pc running lab.Gruppen’s proprieta...

  • Page 13

    C series operation manual 13.

  • Page 14

    14 c series operation manual 7.1 introduction the following sections provide comprehensive infor- mation on amplifier connection, setup, operation, and performance. The detailed information included here is essential to realizing the full functionality of the c series amplifiers. 7. Operation precau...

  • Page 15

    C series operation manual 15 the headroom available through the input stage to the clip limiter is shown by the dotted lines as +10 db at 141 vpeak and +20.4 db at 42 vpeak. These lines illustrate the additional signal level that can be accepted at the input before any significant distortion will ap...

  • Page 16

    16 c series operation manual 7.4 audio input and output con- nections, setup and features 7.4.1 balanced / unbalanced input connection two electronically balanced phoenix-type inputs are available. Follow the +,– and ground labels when connecting the input signal. If an unbalanced connection is desi...

  • Page 17

    C series operation manual 17 7.4.4 amplifier gain all c series amplifiers feature adjustable input gain. This versatility enables the amplifier to accommodate a multitude of system configurations with various input sources and speaker layouts. Amplifier gain is set globally for all four channels. Th...

  • Page 18

    18 c series operation manual speaker or overheating of the output channel through high current draw. For example, with a very “hot” conti-nuous output signal, the temperature could rise to a critical level and activate temp warning or even temp mute. Lowering the vpl setting normally will solve this...

  • Page 19

    C series operation manual 19 signals do not appear in “natural” sources such as music. Any such signals can therefore be considered as a fault when present. Vhf protection is essential in avoiding damage to high frequency drivers. The vhf protection operational area is dependent on output power leve...

  • Page 20

    0 c series operation manual 7.5.7 temperature protection thermal measurement points are provided on each output channel as well as on the power supply. These indicators will, if the pre-specified temperature level is exceeded, give a high temperature warning. This warning condition is indicated by a...

  • Page 21

    C series operation manual 1 7.6 front panel monitoring and adjustments 7.6.1 level indicators four signal/level/clip leds per channel are contained on the c series front panels : orange cpl (current peak limiter) flashing indicates signal exceeds max. Output current. Red vpl/clip indicates that the ...

  • Page 22

    C series operation manual 7.6.4 performance, warning and fault indicators power on/off (green) indicates that mains power is switched on. Nomadlink (blue) indicates that the network is connected. The nomadlink led will light up even before the mains power is connected and switched on as it takes pha...

  • Page 23

    C series operation manual 3 7.7 nomadlink network and pc editor 7.7.1 nomadlink network in the amplifiers all c series amplifiers are equipped with the pro- prietary nomadlink network interface. This includes two ethercon housed rj45 connections: one in and one out. Use standard straight cat5 ethern...

  • Page 24

    4 c series operation manual 7 operation and performance 7.7.3 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 amplifiers within a single subnet with up to 60 units will b...

  • Page 25

    C series operation manual 5 7.7.4 ethernet network cable lengths the connection between the nlb 60e and your pc is a standard ethernet network running the tcp/ip protocol. Cable distances between nlb 60e and your pc follow standard rules for ethernet systems. Contact your it expert for more details....

  • Page 26: 8  Appendix

    6 c series operation manual 8 appendix 8.1 maintenance during normal operation your c series amplifier will provide trouble-free service. The only user mainte- nance required is to periodically vacuum clean the foam dust filters behind the front grille. In some extreme cases it may be necessary for ...

  • Page 27: Appendix  8

    C series operation manual 7 8.4 additional documentation in case you didn’t find what you were looking for in this operation manual, check out the website at www.Labgruppen.Com, where you can find a multitude of additional documentation for c series: drawings, technical data sheets, tables with inpu...

  • Page 28: 8  Appendix

    8 c series operation manual 8.5 btu specifications the following tables contain information on measured current consumption as well as calculated heat dissipation at three states: 1) stand-by/idling; 2) normal operation (1/8 of rated power); and 3) at extreme heavy duty operation (max. Power). 115va...

  • Page 29: Appendix  8

    C series operation manual 9 115vac 230vac in out dissipated btu/hr kcal/hr 0 0 0 0 0 123 0 123 420 106 8 Ω / ch. 700 x4 16 Ω / bridged 1400 x2 4 Ω / ch. 700 x4 8 Ω / bridged 1400 x2 2 Ω / ch. 300 x4 4 Ω / bridged 600 x2 100v / ch. 700 x4 200v / bridged 1400 x2 8 Ω / ch. 700 x4 16 Ω / bridged 1400 x2...

  • Page 30

    30 c series operation manual 9 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 without notice. For the most accurate and current information available, please visit...

  • Page 31

    C series operation manual 31 technical specifications 9 common values for all c series amplifiers performance with gain: 35db and vpl: 141v thd 20 hz - 20khz for 1w 0.1% thd at 1khz and 1db below clipping 0.05% signal to noise ratio 112 dba channel separation (crosstalk) at 1khz 70 db frequency resp...

  • Page 32: 10  Warranty

    3 c series operation manual 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 (6) years from date of purchase from an authorized lab.Gruppen dealer. If th...

  • Page 33

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