Manuel d'utilisation / d'entretien du produit Century Gold du fabricant JBL
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LIMITED EDITION LOUDSPEAKER SYSTEM Centur y Gold A NEW ST ANDARD FOR A NEW CENTUR Y final cg om 5-15 7/20/98 1:15 PM Page 14.
This certifies that this Century Gold is a Limited Edition Reference Bookshelf Loudspeaker System , in celebration of JBL ’ s 50th Anniversary . Genuine JBL Greg T imbers Senior Acoustic Engineer C.
JBL is part of the Harman International family of audio companies, a group with a common purpose: combining technology with a love of music to manufacture audio products that provide new levels of satisfaction, perfor- mance and value. T o promote diversity and creativity , JBL operates independently in research and development.
JBL wishes to thank you for selecting the Century Gold loudspeaker system. While the Century Gold loudspeakers are a new development, the ideas behind them go back to the earliest days of JBL. This system is a definitive expression of JBL ’ s quality and craftsmanship.
No. 3 The Limited Edition Century Gold Bookshelf Loudspeakers set a new standard for a new century . JBL combines the most advanced technology with a classic JBL design. These speakers continue the longstanding tradition of precise studio monitor sound for which JBL is famous.
The Century Gold also features an all-new 5" (127mm) mid-frequency transducer developed specifically for the Century Gold (Figure 2). The voice coil is 2" (50mm) in diameter and wound on edge from flat aluminum ribbon wire to a depth of precisely .
The job of the dividing network is to distribute the various frequencies to their respective transducers. The network is also designed to complement component location on the baffle.
The battery should be replaced approximately every 2 years. This is accomplished as follows: • Unscrew the two screws that hold the battery access cover in place. It is located on the upper portion of the dividing network, on the rear of the speaker enclosure (Figure 4).
Ideally the systems should be placed at least three feet from any walls. The height, at the top of the midrange, should be at ear level. The two speakers should be equidistant from your primary listening position; the distance should be determined by the distance between the speakers.
The Century Gold loudspeakers can be connected by one of several methods. The binding posts on the rear panel of the Century Gold will accept most types of audio cable and connectors, including banana plugs and bare wire (Figure 6). Follow the hookup method that best describes your system.
The Century Gold’ s outer connection panel and internal dividing network are designed so that separate sets of speaker cable can be attached to the low-frequency transducer and midrange/high-frequency transducer portions of the dividing network. This is called bi-wiring.
Figures 8 through 10 show two bi-wiring options, single stereo amplifier and dual stereo amplifier modes. For passive and bi-wire connections, set the switch to the Normal/Bi-W ire position (Figure 8a).
The optimal method of powering the Century Gold system is with two amplifiers, one for low frequencies and one for the mid/high frequencies . It is necessary to use a high-quality active crossover module.
The Century Gold loudspeaker systems have an oiled finish. Cleaning should be done with an untreated dust cloth. Do not use conventional furniture waxes and polishes, which are not designed for oiled finishes.
No. 13 Frequency Response: 50Hz – 20kHz ± 1.5dB 38Hz – 22kHz – 6dB Sensitivity: 90dB for 2.83V @ 1 meter Recommended Maximum 200 watts continuous Power Handling: 800 watts peak Nominal Impedanc.
Introduction 2 Low-Frequency T ransducer 3 Mid-Frequency T ransducer 4 High-Frequency T ransducer 4 Dividing Networks 5 Battery Replacement 6 Placement 7 Speaker Connections 8 Maintenance and Service .
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté JBL Century Gold c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du JBL Century Gold - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation JBL Century Gold, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le JBL Century Gold va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le JBL Century Gold, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du JBL Century Gold.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le JBL Century Gold. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei JBL Century Gold ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
