Manuale d’uso / di manutenzione del prodotto Century Gold del fabbricante 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 punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il JBL Century Gold è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del JBL Century Gold - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso JBL Century Gold imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul JBL Century Gold ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il JBL Century Gold, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del JBL Century Gold.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il JBL Century Gold. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo JBL Century Gold insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
