M O D E L SVL-2 SVL-2 SPEAKER SELECTION/VOLUME CONTROL SYSTEM NILES ® INSTALLATION & OPERATION GUIDE
S S P E A K E R E L E C T I O N / V O L U M E C O N T R O L S Y S T E M SVL-2 Speaker Selection/ Volume Control System TABLE OF CONTENTS Introduction Introduction 1 Features and Benefits 2 The SVL-2 is a combination speaker selector and volume controller. It allows you to connect two pairs of speakers to your stereo receiver or amplifier and adjust the volume of each pair independently. Additionally, you can choose to listen to either pair of speakers, or both pairs simultaneously.
S P E A K E R S E L E C T I O N / V O L U M E C O N T R O L S Y S T E M Features and Benefits The SVL-2 offers a number of improvements over other speaker selector/volume controllers: ● The SVL-2 uses 12 position volume controls which are superior to 10 position designs. You get a broader range of adjustment—there are 10 steps of attenuation instead of 8. Steps 11-6 attenuate -3 dB per step; steps 5-2 are 6 dB per step. Step 12 is "full-on" and step 1 is "full-off".
S 3 P E A K E R S E L E C T I O N / V O L U M E C O N T R O L S Y S T E M ● Spring-loaded push terminal connectors accommodate up to 14 gauge wire or "pins", making the SVL-2 compatible with most "high-definition" speaker cables. ● 100% tested, electronically and acoustically, for frequency response, distortion and power handling. ● Only 8 1/2" wide. Match the width of 17" components by combining with another Niles 1/2 width product. ● May be used with 4, 6 or 8-ohm speaker systems.
S P E A K E R S E L E C T I O N / V O L U M E C O N T R O L S Y S T E M Installation Considerations SVL-2 Power Handling The SVL-2 is designed for use with a receiver or amplifier having a maximum power output of 100 watts per channel at 8 ohms. Damage caused by the use of a higher-power receiver or amplifier will void the warranty. Consult your Niles dealer, or receiver/amplifier manufacturer, if you are uncertain about the power rating of your receiver or amplifier.
S P E A K E R S E L E C T I O N / V O L U M E C O N T R O L S Y S T E M The SVL-2 includes impedance correction circuitry which protects your receiver or amplifier from low impedance loads. The circuitry assures that your receiver or amplifier will see a safe operating load, even when two pairs of 4-ohm speakers are playing at the same time. "TECH TIP" Wire size is expressed by it's AWG (American Wire Gauge) number. The lower the AWG number, the larger the wire, i.e.
S S P E A K E R E L E C T I O N / V O L U M E C O N T R O L S Y S T E M near electrical devices, route the speaker wires several feet away from the electrical wiring. Using the SVL-2 with Tube-Type Amplifiers Virtually all tube amplifiers must have a load connected at all times. If the amplifier to be connected to the SVL-2 is a tube amplifier, be sure to always have at least one pair of speakers switched on at all times.
S S P E A K E R E L E C T I O N / V C O L U M E O N T R O L S Y S T E M 12 position volume control provides greater attenuation than conventional 10 position designs. Recessed areas for custom room labels. SVL-2 SPEAKER SELECTION/VOLUME CONTROL SYSTEM PROTECTION Attractive low-profile design. 1 NILES 2 Connect up to two pairs of speakers. Simple push-button operation. Protection switch safeguards your receiver or amplifier even with both pairs of speakers playing.
S P E A K E R S / V E L E C T I O N O L U M E C O N T R O L S Y S T E M Installation 1. Select a convenient location for the SVL-2. 2. Run all the necessary wiring to the SVL-2. Label the wires for future reference. See (Figure 2). Receiver TUNER 94.9 Figure 2 Wiring Diagram 15 Niles SVL-2 AMPLIFIER + SPEAKER 2 + + - - SPEAKER 1 + NILES Niles Audio Corporation, Inc.
S P E A K E R S E L E C T I O N / V O L U M E C O N T R O L S Y S T E M 3. Make the connections to the SVL-2. 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 into the appropriate hole on the springloaded connector terminals.
S P E A K E R S E L E C T I O N / V O L U M E C O N T R O L S Y S T E M Operation The are two ways to use the SVL-2. You may play and adjust the volume of either pair of speakers independently, or both pairs simultaneously. If you intend to play both pairs simultaneously, and either pair is less than 8 ohms, you will need to become familiar with the operation of the SVL-2's PROTECTION button. Playing One Pair of Speakers At a Time 1.
S P E A K E R S E L E C T I O N / V O L U M E C O N T R O L S Y S T E M 6. Using the appropriate volume control on the front of the SVL-2, adjust the volume of the speakers to the desired listening level. 7. You can turn off the speakers by turning the appropriate volume control on the SVL-2 fully counter-clockwise, or by pressing the ON/OFF button. Playing Two Pairs of Speakers Simultaneously 1. Make sure the amplifier or receiver power is OFF and set the volume to minimum. 2.
S P E A K E R S E L E C T I O N / V O L U M E C O N T R O L S Y S T E M 3. Set both SVL-2 volume controls to maximum. 4. Locate the ON/OFF buttons on the SVL-2. Set both to the ON position. 5. Turn on the amplifier or receiver and select as source, such as the tuner or CD player. 6. Slowly turn up the amplifier or receiver volume and set it to a comfortable (not maximum) listening level. Be careful not to overdrive or "clip" your amplifier.
S P E A K E R S E L E C T I O N / V O L U M E C O N T R O L S Y S T E M Balancing Speaker Volume The volume control on your receiver or amplifier serves as the "master" volume for all speaker pairs connected. The volume level of the speakers may vary from room to room. This is caused by several factors. Two lesser factors are the size of the speaker and its efficiency. The largest factor is the physical size of the room.
S P E A K E R S E L E C T I O N / V O L U M E C O N T R O L S Y S T E M SPECIFICATIONS Audio Power Handling 100 watts/channel continuous music power Frequency Response +/- 1.2 dB from 20 Hz to 20 kHz Mounting Table-top component Wiring Requirements Individual runs of 2-conductor speaker wire. Connectors accommodate wire sizes 14-22 gauge (16 gauge recommended) Overall Dimensions 8-1/2" wide x 2" high x 7-1/4" deep Weight 3 lb.
NILES ®® Niles Audio Corporation www.nilesaudio.com 12331 S.W. 130 Street Miami, Florida 33186 Tel: (305) 238-4373 Fax: (305) 238-0185 © 1999 Niles Audio Corporation. All rights reserved. Because Niles constantly strives to improve the quality of its products, Niles reserves the right to change product specifications without notice. Niles and the Niles logo are registered trademarks of Niles Audio Corporation.
