Niles Audio SVL-4AB инструкция обслуживания

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. Additionally , you can con[...]

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. This allows any two amplifiers to safely and r[...]

● 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. ● Printed circuit board design assures high reliability . ● T [...]

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 . Consult your Niles dealer or receiver/amplifier manufacturer if you are uncertain[...]

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. The actual impedance load the SVL-4AB[...]

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. Usually , the requirement is that the wir e has a specific "CL" fire rating, suc[...]

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+ SPEAKER 4 SPEAKE R 3 SPE AKER 2 SPEAKER 1 CONSTANT PROTECTION ON OFF Niles Audio Corporation, Miami, Florida US A 150 Ω 5 W att Resistor[...]

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 AMPLIFIER B L+ L- R- R+ AMPLIFIER A AB L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ SPEAKER 4 SPEAKER 3 SPEAKER 2 SPEAKER 1 CONSTANT PROT[...]

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) . 9 S PEAKER S ELEC TION /V OLUME C ONTR OL S YS TEM TUNER 94.9 15 AMPLIFIER L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ SPEAKER 4 SPEAKER 3 SPEAKER 2 SPEAKER 1 CONSTANT P[...]

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. Tightly twist the end of each wire until there are no frayed ends. Insert each wire in[...]

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. Playing One Pair of Speake[...]

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. 7. Using the appropriate volume contr ol on the front of the SVL-4AB, adjust the volume of the speakers to the desi[...]

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. 5. Adjacent to the ON/OFF buttons are the amplifier A/B but- tons. Choose an amplifier for [...]

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. 10. At any time, you may choose[...]

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. Niles and the Niles logo[...]