Manuale d’uso / di manutenzione del prodotto SVL-4AB del fabbricante Niles Audio
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SV L- 4AB INST ALLA TION & OPERA TION GUIDE MODEL S VL - 4AB SPEAKER SEL E CTION /VOLUME CONTROL SYSTEM WITH A/B AMPLIFIER INPUTS SV L- 4AB.
Introduction The SVL-4AB is a combination speaker selector and vol ume controller . The unit allows you to connect up to four pairs of speakers to your stereo receiver or amplifier and adjust the volume of each pair independently . Y ou can choose to listen to any one pair , any combination of pairs, or all pairs at once.
Features and Benefits The SVL-4AB offers a number of improvements over other speaker selector/volume controllers: ● Amplifier A/B Switching— The SVL-4AB pr ovides amplifier switching for each pair of speakers. The switches are “break-before-make“ and simultaneously switch both grounds and hots.
● Rear panel switches for constant or selectable impedance protection for each amplifier . Y ou can use constant protec- tion on one of your two amplifiers and manual protection for the other . ● Self-cleaning, silver-plated switch contacts assure many years of trouble free use.
Installation Considerations SVL-4AB Power Handling The SVL-4AB is designed for use with receivers or amplifiers having a maximum power output of 1 00 watts per channel at 8 ohms. Damage caused by the use of higher-power receivers or amplifiers will void the warranty .
The SVL-4AB includes impedance correction cir cuitr y which protects each of your receivers or amplifiers fr om low imped- ance loads. The circuitry assures that both of your receivers or amplifiers will recognize a safe operating load, even when one amplifier is playing all four speaker pairs at the same time.
may not fit into the connectors. Never use solid-core, alu- minum, or "Romex" type wire with the SVL-4AB. When run- ning speaker wires inside walls, most states and municipalities in the U.S. specify that you must use a special type of speaker wire.
7 S PEAKER S ELEC TION /V OLUME C ONTR OL S YS TEM Figure 1 Using a T ube Amplifier T ube Amplifier Niles SVL-4AB 15 0 15 0 AMPLIFIER L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ SPEAKE.
8 S PEAKER S ELEC TION /V OLUME C ONTR OL S YS TEM SVL-4AB SPEAKER S ELECTION/VO LUME C ONTROL SY STEM SPEAKER 1 A B OFF ON OFF ON OFF ON OFF ON SPEAKER 2 A B SPEAKER 3 A B SPEAKER 4 A B PROTECTION AM.
Installation 1. Select a convenient location for the SVL-4AB. 2. Run all the necessary wiring to the SVL-4AB. Label the wires for future reference. See (Figure 2) .
3. Make the connections to the SVL-4AB. The amplifier/speaker connectors on the SVL-4AB are removable. If you wish, you may remove the SVL-4AB's connectors to facilitate installation [see (Figure 3) ]. Strip 3/8" of insulation from the end of each wire.
Operation The are two ways to use the SVL-4AB. Y ou may play and adjust the volume of one pair of speakers at a time, or play multiple pairs simultaneously . If you intend to play more than one pair of speakers at the same time, you will need to become familiar with the opera- tion of the SVL-4AB's PROTECTION button.
not to overdrive or "clip" your amplifier . If the sound becomes muddy or distorted, you have reached the limit of your amplifier's volume capability and should quickly reduce the volume to avoid damaging your speakers.
S PEAKER S ELEC TION /V OLUME C ONTR OL S YS TEM 13 3. Set the SVL-4AB volume controls which cor respond to the speaker pairs you wish to play to maximum (fully clockwise). 4. Locate the appropriate ON/OFF buttons on the SVL-4AB. Set them to the ON position.
S PEAKER S ELEC TION /V OLUME C ONTR OL S YS TEM 14 9. Y ou can turn off the speakers by turning the correspond- ing volume controls on the SVL- 4AB fully counter-clockwise, or by pressing the appropriate ON/OFF button. Refer to the Protection Chart located on page 13 for the correct setting of the PROTECTION button.
Nil es Audi o Corporation www .nilesaudio.com 1 233 1 S.W. 1 30 Street Miami, Florida, 33 186 T el: (305) 238-4373 Fax: (305) 238-0 1 85 © 1 999 Niles Audio Corporation All rights reserved. Because Niles believes in constantly improving its products, Niles reserves the right to change product specifications without notice.
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 Niles Audio SVL-4AB 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 Niles Audio SVL-4AB - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Niles Audio SVL-4AB imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Niles Audio SVL-4AB ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Niles Audio SVL-4AB, 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 Niles Audio SVL-4AB.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Niles Audio SVL-4AB. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Niles Audio SVL-4AB 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.
