Manuale d’uso / di manutenzione del prodotto 250/4 del fabbricante Directed Audio
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models 200/2 300/2 250/4.
2 © 2003 Directed Electronics, Inc T ABLE OF CONTENTS CONGRA TULA TIONS Congratulations for choosing a Directed Audio power amplifier from Directed Electronics, the industry leader in high quality automotive security and audio equipment since 1990.
LIMITED TWO-YEAR CONSUMER W ARRANTY 3 © 2003 Directed Electronics, Inc Directed Electronics, Inc. promises to the original purchaser , to replace this product should it prove to be defective in workm.
4 © 2003 Directed Electronics, Inc High-powered car audio systems may produce sound pressure levels that exceed the threshold at which hearing loss may result. They may also impair a driver’ s ability to hear traffic sounds or emergency vehi- cles.
5 © 2003 Directed Electronics, Inc INST ALLA TION GUIDELINES 1. Please read this owner’ s manual carefully before installing this ampli- fier . 2. Disconnect the batter y ground terminal prior to making any elec- trical connections.
6 © 2003 Directed Electronics, Inc speaker load, the more heat is generated. For low impedance speaker applications or restricted ventilation installations, an external cooling fan may be advisable.
7 © 2003 Directed Electronics, Inc 1. H H i i g g h h L L e e v v e e l l I I n n p p u u t t C C o o n n n n e e c c t t o o r r - Accepts 1v to 10v input from the headunit’ s speaker output. 2. R R C C A A O O u u t t p p u u t t J J a a c c k k s s - - These pass through RCA jacks can be used to send the input signal to a second amplifier .
1. S S p p e e a a k k e e r r O O u u t t T T e e r r m m i i n n a a l l s s - Connect the speakers to these terminals. (Refer to the Speaker Connection section of this guide.) 2. P P o o w w e e r r F F u u s s e e - - This fuse protects the amplifier against internal electrical damage and is meant to protect the amplifier only .
9 © 2003 Directed Electronics, Inc REM GND BAT T 20A FUSE SPEAKER OUTPUT LR BRIDGED FIGURE 2—AMPLIFIER CONNECTIONS 200/2 300/2 REAR 1 2 4 3 5 REM GND BAT T 25A FUSE LR BRIDGED SPEAKER OUTPUT FRONT .
10 © 2003 Directed Electronics, Inc SPEAKER WIRING DIAGRAMS 200/2 300/2 Stereo operation (top view) Mono operation (top view) Simultaneous stereo/mono operation (top view).
11 © 2003 Directed Electronics, Inc SPEAKER WIRING DIAGRAMS 250/4 Simultaneous stereo/mono operation (top view) N N O O T T E E : : For bridged two channel operation as shown in this diagram, connect right channel RCA cables to the front inputs of the amplifier , and left channel RCA cables to the rear inputs of the amplifier .
12 © 2003 Directed Electronics, Inc CROSSOVER SETTINGS AND GAIN ADJUSTMENT Y our Directed Audio power amplifier needs to be adjusted carefully to achieve maximum performance.
13 © 2003 Directed Electronics, Inc SPECIFICA TIONS Directed model 200/2 300/2 250/4 RMS continuous power per channel , both chan- nels driven into 4 ohms from 20 to 20,000 Hz, with less than 0.08% T otal Harmonic Distor tion @ 14.4 VDC RMS continuous power per channel , both chan- nels driven into 2 ohms from 20 to 20,000 Hz, with less than 0.
16 © 2003 Directed Electronics, Inc The company behind this system is Directed Electronics, Inc. Since its inception, Directed has had one purpose, to provide customers with the finest vehicle security , car stereo products, rear seat entertainment, and accessories available.
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 Directed Audio 250/4 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 Directed Audio 250/4 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Directed Audio 250/4 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Directed Audio 250/4 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Directed Audio 250/4, 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 Directed Audio 250/4.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Directed Audio 250/4. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Directed Audio 250/4 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.
