Manuel d’utilisation Crest Audio CA18

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Summary
  • Crest Audio CA18 - page 1

    O WNER’ S MANU AL PROFESSIONAL PO WER AMPLIFIERS Professional Power Amplifier Professional Power Amplifier Professional Power Amplifier Professional Power Amplifier Professional Power Amplifier Professional Power Amplifier ...

  • Crest Audio CA18 - page 2

    1. Save the carton and packing material even if the equipment has arrived in good condition. Should you ever need to ship the unit, use only the original factory packing. 2. Read all documentation before oper- ating your equipment. Retain all doc- umentation for future reference. 3. Follow all instructions printed on unit chassis for proper operati ...

  • Crest Audio CA18 - page 3

    Crest Audio CA Series Power Amplifiers Page 3 Models CA2, CA4, CA6, CA9, CA12, CA18 Introduction Unpacking Installation and Mounting Front Panel Rear Panel Internal Configuration and Control Operation Connecting Po wer / Circuit Size Requirements Cooling Requirements Connecting Inputs Connecting Outputs Mode Selection Stereo /Parallel/Bridged Mono ...

  • Crest Audio CA18 - page 4

    Page 4 Crest Audio CA Series Power Amplifiers Models CA2, CA4, CA6, CA9, CA12, CA18 Professional Power Amplifier Front height 5.25" 133mm Front width 19" / 483mm CA12, CA18 Front Vie w Professional Power Amplifier Front height 3.5" 89mm CA2-9 Front Vie w Rear & Side Views Front width 19" / 483mm *Note: see Appendix E f or de ...

  • Crest Audio CA18 - page 5

    Intr oduction Congratulations on your purchase of a ne w CA Series professional po wer amplifier , and thank you for your confidence in Crest Audio products. Y ou are among the gro wing number of audio professionals who hav e made Crest Audio one of the world’ s leading suppliers of professional and commercial/industrial audio sys- tems. For your ...

  • Crest Audio CA18 - page 6

    Fr ont P anel 1. Rack Mounting Ear s. T wo front panel mounting holes are provided on each mounting ear . 2. Optional Rack Handles. A v ailable from your authorized Crest Audio supplier . 3. Fan Outlet Grills. CA Series amplifiers are cooled by tw o, rear -mounted fans. Cool air flo ws o ver the heat sinks and e xhausts through the front grills. Ma ...

  • Crest Audio CA18 - page 7

    Rear P anel See Appendix E for information specific to model CA18. 10. Output Connectors (T wo versions, market dependent) CA Series amplif iers are supplied with either 5-way Binding Posts or Speakon connectors. Connection to the binding posts can be made with bare wire, banana plugs, or spade lug terminations. Make connections to both the Channel ...

  • Crest Audio CA18 - page 8

    13-14. Balanced 1/4" (TRS) & XLR Input Connectors. These connectors accept input signals on balanced TRS and XLR input plugs. See the figure at the left for information on polarity . Connectors for each chan- nel are in parallel; the unused connectors may be used for “loop through” con- nection to other amplifiers. NO TE: Unbalanced ? ...

  • Crest Audio CA18 - page 9

    Operation Connecting P o wer / Cir cuit Size Requirements. CA Series amplifier po wer requirements are rated at: a) “idle” b) 1/8th po wer (“typical” music conditions) c) 1/3rd po wer (“continuous” music conditions) d.) maximum rated po wer (circuit breaker limited). The maximum po wer current draw rating is limited only by the front pa ...

  • Crest Audio CA18 - page 10

    Connecting Inputs. Use either the XLR or 1/4-inch input connectors on the rear to supply audio signals to your Crest Audio CA Series amplifier . Both connectors accept balanced and unbalanced audio connections. (The CA Series amplifiers are conf igured standard with “Pin 2 hot” on XLR inputs. Please note that some other Crest Audio amplifiers a ...

  • Crest Audio CA18 - page 11

    Mode Selection. The three-position, recessed Mode Select switch (located on the rear panel) configures the amplif ier for either Stereo, Parallel or Bridged Mono Mode. Amplif iers are factory-conf igured for Stereo Mode. Stereo Mode. In Stereo Mode, both channels operate independently , with their input attenuators controlling their respec- ti ve l ...

  • Crest Audio CA18 - page 12

    Page 12 Crest Audio CA Series Power Amplifiers Models CA2, CA4, CA6, CA9, CA12, CA18 A A B AB A 1 3- 2+ + A A B B •• • • + + + A B B A A B + + B B or A A or B A A A B AB A 1 3- 2+ + A A B B •• • • + + + A B B A A B + + A A or A A A A B AB A 1 3- 2+ + A A B B •• • • + + + A B B A 643-106 A B A A A or + Bridged/Mono Stereo Mod ...

  • Crest Audio CA18 - page 13

    Crest Audio CA Series Power Amplifiers Page 13 Models CA2, CA4, CA6, CA9, CA12, CA18 A A B AB A 1 3- 2+ + • • • • B A NL4FC B A A B A A B B B A A or B or B A + - + - Speaker + to PIN 1 + Speaker - to PIN 1 - 2+ 1- 2- 1+ A A B AB A 1 3- 2+ + • • • • B A NL4FC B A A B A A B B A A or A A + - + - Speaker + to PIN 1 + Speaker - to PIN 1 ...

  • Crest Audio CA18 - page 14

    T ourClass ® Pr otection Every model in the CA Series incorporates T ourClass protection features. Deri ved from Crest Audio’ s extensi v e experience with the w orld’ s largest sound rental companies, the T ourClass group of circuits sets the industry standard for assured protection of internal amplifier circuits and all connected loads. A CL ...

  • Crest Audio CA18 - page 15

    User Precautions Speaker Protection All loudspeakers ha ve electrical, thermal, and physical limits which must be observ ed to pre v ent damage or failure. Cone or compression dri v ers can be damaged (sometimes to the point of failure) from excessi v e po wer , lo w frequencies applied to high frequenc y dri vers, se v erely clipped wa v eforms, a ...

  • Crest Audio CA18 - page 16

    Maintenance A CA Series amplifier requires no routine maintenance other than occasional cleaning or replacement of the fan intake f ilters on the rear of the amplif ier . (This operation does not require any tools). Filters must be kept clear and clean to ensure proper v entilation through the unit. If the amplif ier is used in an extremely dusty o ...

  • Crest Audio CA18 - page 17

    Appendices ...

  • Crest Audio CA18 - page 18

    Appendix A Crest Audio CA Series Power Amplifiers Models CA2, CA4, CA6, CA9, CA12, CA18 Appendix A - Amplifier Specifications 1kHz, 0.01% THD+N 8 Ω Stereo Power 4 Ω Stereo Power 2 Ω Stereo Power 8 Ω Bridged Mono Power 4 Ω Bridged Mono Power 20Hz-20kHz, 0.1% THD+N 8 Ω Stereo Power 4 Ω Stereo Power 2 Ω Stereo Power 8 Ω Bridged Mono ...

  • Crest Audio CA18 - page 19

    Crest Audio CA Series Power Amplifiers Appendix B Models CA2, CA4, CA6, CA9, CA12, CA18 Appendix B - CA Bloc k Diagram BRIDGED - P ARALLEL - STEREO SWITCH R T 2 3 1 2 3 1 R T 2 / 3 PIN 2 / 3 + JUMPER (REAR P ANEL SWITCH ON CA18) + - INVERTED NON-INVERTED PREAMP PREAMP A TTENUA TOR A TTENUA TOR AMP FRONT END AMP FRONT END OUTPUT ST AGE OUTPUT ST AGE ...

  • Crest Audio CA18 - page 20

    Appendix C Crest Audio CA Series Power Amplifiers Models CA2, CA4, CA6, CA9, CA12, CA18 Stranded Cable Lgth. (m) 2 5 10 30 Wire Gauge (mm 2 ) 0.3 0.5 0.75 1.5 2.5 4 0.5 0.75 1.5 2.5 4 6 0.5 0.75 1.5 2.5 4 6 0.75 1.5 2.5 4 6 10 Power Loss (8 ohm load) 2.9% 1.74 1.16 0.58 0.35 0.22 4.3% 2.9 1.45 0.87 0.55 0.37 8.24% 5.6 2.9 1.74 1.09 0.73 15.5% 8.2 5 ...

  • Crest Audio CA18 - page 21

    Crest Audio CA Series Power Amplifiers Appendix C Models CA2, CA4, CA6, CA9, CA12, CA18 Stranded Cable Lgth. (ft.) 5 10 40 80 Wire Gauge (AWG) 18 16 14 12 10 18 16 14 12 10 18 16 14 12 10 8 18 16 14 12 10 8 Power Loss (8 ohm load) 0.81% 0.51 0.32 0.20 0.128 1.61% 1.02 0.64 0.40 0.25 6.2% 4.0 2.5 1.60 1.01 0.60 11.9% 7.7 5.0 3.2 2.0 1.20 Power Loss ...

  • Crest Audio CA18 - page 22

    Appendix D Crest Audio CA Series Power Amplifiers Models CA2, CA4, CA6, CA9, CA12, CA18 A B B A + + + A A B B B A A B XLR Pin + 2 3 GAIN Ø dBu 40x 20x + 1 3- 2+ A A B AB A Input Connection Section Output Connection Section XLR Connector Polarity Indicator TRS Connector Polarity Indicator Mode Selection Switch - Bridged Mono Position Mode Selection ...

  • Crest Audio CA18 - page 23

    Crest Audio CA Series Power Amplifiers Appendix E Models CA2, CA4, CA6, CA9, CA12, CA18 Appendix E CA18 P ower Amplifier - Special Functions XLR Pin + GAIN Ø dBu 40x 20x A B + AB A A A B A A B B A B B A + + + Designed & manufactured in the USA by: Crest Audio Inc. 100 Eisenhower Dr. Paramus, New Jersey 07652 USA 2 3 1 3 2 XLR Pin + GAIN Ø dBu ...

  • Crest Audio CA18 - page 24

    Crest Audio Inc. 100 Eisenhower Dr., Paramus NJ 07652 USA TEL : 201.909.8700 FAX : 201.909.8744 http://www.crestaudio.com Printed in USA Choice of touring pr of essionals. *B5000013* v. 2.9 11/25/97 © 1997 Crest Audio, Inc. ...

Fabricant Crest Audio Catégorie Musical Instrument Amplifier

Les documents que nous recevons du fabricant de l'appareilCrest Audio CA18 peuvent être divisés en plusieurs groupes. Ceux-ci sont, entre autres:
- dessins techniques Crest Audio
- manuels d’utilisations CA18
- fiches produit Crest Audio
- dépliants
- ou étiquettes-énergie Crest Audio CA18
Tous sont importants, mais les informations les plus importantes du point de vue de l'utilisation de l'appareil se trouvent dans le manuel d’utilisation Crest Audio CA18.

Un groupe de documents appelé manuels d’utilisation est également divisé en types plus spécifiques, tels que: Manuels d’installation Crest Audio CA18, manuels d’entretien, brefs manuels ou manuels de l’utilisateur Crest Audio CA18. Selon vos besoins, vous devriez chercher le document dont vous avez besoin. Sur notre site, vous pouvez voir le manuel le plus populaire d’utilisation du produit Crest Audio CA18.

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Manuel d’utilisation complet de l’appareil Crest Audio CA18, quelle devrait-elle être?
Le manuel d’utilisation, également appelé le mode d’emploi, ou tout simplement le manuel, est un document technique destiné à aider à utiliser Crest Audio CA18 par les utilisateurs. Des manuels sont généralement écrits par un rédacteur technique, mais dans un langage accessible à tous les utilisateurs Crest Audio CA18.

Le manuel d’utilisation complet Crest Audio, devrait inclure plusieurs éléments de base. Certains d'entre eux sont moins importants, tels que: la couverture / page de titre ou pages d'auteur. Cependant, la partie restante, devrait nous fournir des informations importantes du point de vue de l'utilisateur.

1. Introduction et des conseils sur la façon d'utiliser le manuel Crest Audio CA18 - Au début de chaque manuel, nous devrions trouver des indices sur la façon d'utiliser le document. Il doit contenir des informations sur l'emplacement de la table des matières Crest Audio CA18, FAQ ou des problèmes les plus fréquents - les points qui sont les plus souvent recherchés par les utilisateurs de chaque manuel
2. Table des matières - index de tous les conseils pour lCrest Audio CA18 qui peuvent être trouvés dans le document courant
3. Conseils sur la façon d'utiliser les fonctions de base de l’appareil Crest Audio CA18 - qui devraient nous aider dans les premières étapes lors de l'utilisation Crest Audio CA18
4. Troubleshooting - séquence systématique des activités qui nous aideront à diagnostiquer et ensuite résoudre les principaux problèmes de Crest Audio CA18
5. FAQ - questions fréquemment posées
6. Détails du contact Informations sur l'endroit où chercher le contact avec le fabricant / service Crest Audio CA18 dans un pays donné, si le problème ne peut être résolu par nous-mêmes.

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