Manuale d’uso / di manutenzione del prodotto VRX900 del fabbricante JBL
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User ’ s Guide VRX932LA VRX932LA-WH VRX918S VRX918S-WH VRX915M VRX928LA VRX915S VRX-AF VRX-SMAF.
CONTENTS Important Safety Instructions 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water . 6. Clean only with a dry cloth. 7. Do not block any ventilation openings.
INTRODUCTION TO THE VRX932LA The VRX932LA is a two-way , line-array loudspeaker system intended for use in arrays of up to six enclosures. Three high-frequency drivers are mounted to the Constant Curvature waveguide which is designed so that multiple enclosures may be arrayed with no discontinuity in the vertical coverage pattern.
SPECIFIC A TIONS VRX932LA - 12", T wo-W ay , Line-array Loudspeaker System System T ype: 12" two-way , line array loudspeaker system Frequency Range (-10 dB) : 57 Hz - 20 kHz Frequency Respo.
INTRODUCTION TO THE VRX928LA The VRX928LA – the smaller version of the VRX932LA is a light-weight, compact, 8", two-way line-array speaker system designed for use in arrays of up to six units.
SPECIFIC A TIONS VRX928LA - 8", T wo-way , Llne-array Speaker System T ype: 8" two way , line array loudspeaker system Frequency Range (-10 dB): 70Hz -20kHz Frequency Response (±3 dB): 87Hz.
546 mm (21.5 in) 464 mm (18.25 in) 298 mm (11.75 in) 38 mm (1.5 in) 457 mm (18.0 in) 235 mm (9.25 in) 489 mm (19.25 in) 508 mm (20.0 in) 56 mm (2.2 in) 45 mm (1.8 in) 51 mm (2.0 in) 406 mm (16.0 in) 610 mm (24.0 in) 8 mm (0.3 in) 508 mm (20.0 in) 597 mm (23.
SPECIFIC A TIONS VRX918S - 18" Subwoofer System T ype: Frequency Range (-10 dB) : Frequency Response (±3 dB) : Input Connection Modes: Recommended Crossover: Power Rating (Continuous / Program /.
INTRODUCTION TO THE VRX915S The VRX915S a very compact single 15” direct radiating subwoofer is intended as companion subwoofer for the VRX928LA. The suspension system is designed for full compatibility with the VRX928LA Line Array System and with the VRX-SMAF array frame.
SPECIFIC A TIONS VRX915S - 15", Bass-reflex Subwoofer System T ype: 15” bass reflex subwoofer Frequency Range (-10 dB): 35Hz -250Hz Frequency Response (±3 dB): 40Hz - 250Hz Recommended Hi-Pass.
11 INTRODUCTION TO THE VRX915M The VRX915M is a dedicated, compact and lightweight, 15", two way touring-class floor monitor , with only a 375 mm (14.
SPECIFIC A TIONS VRX915M - 15” T wo-Way Stage Monitor System T ype: 15" T wo-way Stage Monitor Frequency Range (-10 dB): 60 Hz - 20 kHz Frequency Response (±3 dB): 70 Hz - 20 kHz Coverage Pattern: 50° x 90° nominal Crossover Modes: Passive / Bi-amp Crossover Frequency: 1.
13 INTRODUCTION TO THE VRX-AF The VRX-AF is an array frame designed to be used for suspension of the VRX932LA and VRX918S loudspeaker systems. The optional array frame kit includes the following items.
INTRODUCTION TO THE VRX-SMAF The VRX-SMAF is an array frame designed to be used for suspension of the VRX928LA and VRX915S loudspeaker systems. The optional array frame kit includes the following item.
AMPLITUDE SHADING Amplitude Shading Amplitude shading is a technique that allows the coverage pattern of a loudspeaker array to be shaped by adjusting the relative acoustic output of some of the devices in the array . Most often, array shading involves only the mid and high-frequency sections of the array .
Bi-Amplified System In a bi-amplified system, array shading is accomplished by connecting separate amplifier channels to the HF section of each VRX932LA/VRX928LA. In larger arrays, a single amplifier channel may be used for two adjacent loudspeakers. Array shading is then accomplished by adjusting the gain of the HF amplifier channels.
DEPLO YING THE SY STEM The VRX932LA/VRX928LA are flexible speaker systems that can be deployed in ground-supported or suspended applications. The following information will help you set up your VRX932LA/VRX928LA system safely and effectively .
Dual VRX932LA/VRX928LA Unlike most conventional speakers, the VRX932LA/VRX928LA is designed so that a pair of speakers may be safely mounted onto a pole or tripod stand. For most applications, the forward socket of the dual angle pole socket will be used.
Correct use of all rigging hardware is required for secure system suspension. Careful calculations should always be performed to ensure that all components are used within their Maximum Load Limit before the array is suspended. Never exceed the maximum recommended load ratings.
Maximum Array Size There are three variations of the VRX array frame. The VRX-AF supersedes the VRX932AF-LA. The VRX-SMAF is solely intended for use with the VRX928LA and VRX915S.
Ground-Stacked, Upward Firing Arrays Applications such as covering stadium bleachers from the playing field may be addressed by installing the VRX932LA-AF/ VRX-AF/ VRX-SMAF array frame to the bottom of the array . Up to four VRX932LA/VRX928LA loudspeakers may be locked together and ground stacked using the VRX array frame kit, as shown.
Please visit www .jblpro.com/tunings for latest versions of our recommended system tunings or call customer service at T oll Free 1-800-852-5776. SY STEM PROCESSOR TUNINGS 22 NO TES.
JBL W ARRANTY AND CONT ACTS Mailing Address: JBL Professional 8500 Balboa Blvd. Northridge, CA 91329 USA Shipping Address: JBL Professional 8370 Balboa Blvd.
JBL Professional 8500 Balboa Blvd. Northridge, CA 91329 USA Part Number: 353551-005 03/2007.
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 VRX900 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 VRX900 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso JBL VRX900 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul JBL VRX900 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il JBL VRX900, 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 VRX900.
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 VRX900. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo JBL VRX900 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.
