Niles Audio SVL-6 Stereo Receiver User Manual
Contents
1. Speaker Pair 6 W H il g HH H jA H H HIA H H Hi H HI Speaker Speaker Speaker Speaker Speaker 5 Pair 4 Pair 3 Pair 2 Pair 1 SPEAKER SELECTION VOLUME CONTROL 3 Make the connections to the SVL 6 The amplifier speaker connectors on the SVL 6 are removable If you wish you may remove the SVL 6 s connectors to facilitate installation see Figure 3 1 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 connector terminals Be certain that proper phasing is observed connect the positive terminals the SVL 6 to the postive terminals on the amplifier and speakers and the negative terminals on the SVL 6 to the negative terminals on the amplifier and speakers Re install the connectors if they were removed See Figure 4 4 Locate the pre printed Room Labels Affix the appropriate label to the recessed area over each ON OFF selector button Figure 3 Figure 4 SYSTEM Removing the Connectors Installing the Connectors SPEAKER TECH TIP If your amplifier or receiver has A and B speaker pair outputs connect the SVL 6 to the A outputs Do not connect2. SV L O SPEAKER SELECTION VO LU ME CONTROL SYSTEM Rf NILES INSTALLATION amp OPERATION GUIDE ECTION VOLUME CONTROL SYSTEM SVL 6 Speaker Selection Volume Control System TABLE OF CONTENTS Introduction 1 Features and Benefits Installation Considerations 4 Installation 9 Operation 11 Specifications 14 Introduction The SVL 6 is a combination speaker selector and volume con troller It allows you to connect up to six pairs of speakers to your stereo receiver or amplifier and adjust the volume of each pair independently Additionally you can choose to lis ten to any one pair any combination of pairs or all pairs at once You don t have to worry about overloading your ampli fier The SVL 6 has a protection circuit that keeps your ampli fier running safely even with all six pairs of speakers playing at the same time A perfect application for the SVL 6 15 individually controlling speaker ON OFF and volume adjustment for six pairs of speakers one pair in the room with the main stereo system and five additional pairs in remote locations The SVL 6 adjusts the volume of the speakers connected to it by attenu ating the amplifier signal Niles volume controls use auto formers instead of L pads for the volume controlling element This assures minimal internal power dissipation with virtually no power wasted as heat SPEAKER SELECTION VOLUME CONTROL SYSTEM Features and Be
3. The volume level of the soeakers 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 The SVL 6 s volume controls allow you to adjust the volume of each speaker pair individually You can leave the amplifier or receiver volume set at one position and use the SVL 6 vol ume controls exclusively 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 17 wide x 2 high x 9 1 4 deep Weight 8 3 4 Ibs NILES 6 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 Printed in USA 4 96 DS00096A
4. anything to This will prevent the amplifier or receiver from driving an unusually low impedance load SELECTION MVOLU ME CONTROL SYSTEM Operation There two ways to use the SVL 6 You may play and adjust the volume of one pair of speakers at a time or plav multiple pairs simultaneousiv If you intend to play more than one pair of speakers at the same time you will need to become familiar with the oper ation of the SVL 6 s PROTECTION button Playing One Pair of Speakers At a Time 1 Make sure the amplifier or receiver power is OFF and set the volume to minimum 2 Set the SVL 6 volume control for the speaker pair you wish to play to maximum fully clockwise 3 Locate the ON OFF button on the SVL 6 which corre sponds to the speaker pair you wish to play Set it to the ON position 4 Turn on the amplifier or receiver and select as source such as the tuner or CD player 5 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 If the sound becomes muddy or distorted you have reached the limit of your amplifiers volume capability and should quickly reduce the volume to avoid damaging your speakers SPEAKER SELECTION VOLUME CONTROL SYSTEM 6 Using the appropriate volume control on the front of the SVL 6 adjust the volume of the speakers to the desired listening level 7 You can tum off
5. ch as the tuner or CD player 6 Slowly tum 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 If the sound becomes muddy or distorted you have reached the limit of your ampli fiers volume capability and should quickly reduce the volume to avoid damaging your speakers 7 Using the appropriate volume controls on the front of the SVL 6 adjust the volume of the speakers to the desired listen ing level 8 You can tum off the speakers by tuming the corresponding volume controls on the SVL 6 fully counter clockwise or by pressing the appropriate ON OFF button Refer to the Protection chart for the correct setting of the PROTECTION button SPEAKER SELECTION VOLUME CONTROL SYSTEM Constant Protection Switch The SVL 6 is equipped with a manual override for the protec tion circuit that enables vou to defeat the front panel protec tion switch and maintain constant impedance protection This will safeguard vour amplifier from being overdriven due to accidental or improper use bv anvone unfamiliar with the equipment To engage this override move the rear panel CONSTANT PROTECTION switch to the ON position Constant imped ance protection will be maintained until the switch is tumed to OFF Balancing Speaker Volume The volume control on your receiver or amplifier serves as the master volume for all speaker pairs connected
6. er Wire For most applications we recommend you use 16 18 gauge stranded copper speaker wire for the SVL 4 connec tions For wiring runs longer than 80 feet 14 gauge wire is recommended Using speaker wire larger than 14 gauge for the SVL 6 connections is not recommended the wire may SPEAKER SELECTION VOLUME CONTROL SYSTEM not fit into the connectors Never use solid core aluminum or Romex type wire with the SVL 6 When running speaker wires inside walls most states and municipalities in the U S specifv that vou must use a special tvpe of speaker wire Usually the requirement is that the wire that has a specific CL fire rating such as CL 2 or CL 3 Consult your Niles dealer building contractor or local building and inspection department if unsure about which type of wire is best for your application Avoiding Interference Speaker wires can act as an antenna for electrical noise Locating speaker wires too close to a light dimmer or switch may cause a buzzing or popping sound to be heard though the speakers If you must locate the SVL 6 wiring near electrical devices route the speaker wires several feet away from the electrical wiring Using the SVL 6 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 6 is a tube amplifier be sure to always have at least one pair of speakers switched on at all times An alternative
7. is to permanently connect 150 ohm 5 watt resistor across the tube amplifier s output in parallel with the SVL 6 See Figure 1 on next page for hookup diagram 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 12 AWG wire is physically larger than 14 AWG SPEAKER SELECTION VOLUME CONTROL SYSTEM Amplifier Figure 1 Using Tube Amplifier H I H H HY fh biH ip H H H SPEAKER SELECTION VOLUME CONTROL SYSTEM 12 position volume control provides greater attenuation than conventional 10 position designs Recessed areas for custom room labels a NN Attractive low profile design Simple Connect up to six pairs Protection switch safeguards vour push button of speakers receiver or amplifier even with all operation 6 pairs of speakers plaving Constant Two piece Impedance removable Protection connectors Switch SPEAKER SE CI ooo LECTION VOLUME CONTROL SYSTEM Installation 1 Select a convenient location for the SVL 6 2 Run all the necessary wiring to the SVL 6 Label the wires for future reference See Figure 2 Receiver Figure 2 AW Wiring Diagram HHH Niles SVL 6 6
8. me 2 ohms and so on Most receivers or amplifiers are not rated for use below a 4 ohm load Most manufacturers do not recommend connect ing more than two pairs of speakers without using some form of impedance correction TOOLS REQUIRED e 1 8 Standard Slotted Screwdriver e Wire Stripper IMPORTANT DO NOT use the SVL 6 with amps or receivers rated at more than 100 watts per channel RMS at 8 ohms SPEAKER VOLUME CONTROL SYSTEM The SVL 6 includes impedance correction circuitry which protects your receiver or amplifier from low impedance loads The circuitry assures that your receiver or amplifier will see safe operating load even when all six speaker pairs are plaving at the same time The actual impedance load the SVL 6 presents to your receiv er or amplifier will vary depending on how many speaker pairs are playing and the impedance rating of each speaker If you have six pairs of 8 ohm speakers playing the SVL 6 will present a 4 3 ohm impedance load to your receiver amplifier With six pairs of 4 ohm speakers playing the load drops to sightly under 4 ohms If you intend to use the SVL 6 with more than two pairs of 4 ohm speakers it is recommended that you verify that the receiver or amplifier is capable of driving a 4 ohm load Consult your Niles dealer or the receiver amplifier manu facturer if you are uncertain about the capabilities of the receiver amplifier Type of Speak
9. nefits The SVL 6 offers a number of improvements over other speaker selector volume controllers e The SVL 6 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 e Greater dvnamic range vou get 42 dB of total attenua tion instead of the usual 20 or 30 dB e POP FREE switching between all steps e Pre printed Room Labels are included for easv identifica tion of speaker ON OFF buttons e Rear panel switch for constant or selectable impedance protection e Isolated left and right channel ground returns make the SVL 6 compatible with all tvpes of amplifiers e Self cleaning silver plated switch contacts assure manv vears of trouble free use TECH SUPPORT HOTLINE If you have questions regarding the operation of the Niles SVL 6 contact your local Niles dealer or Niles Customer Service at 1 800 289 4434 SPEAKER SELECTION VOLUME CONTROL SYSTEM e Printed circuit board design assures high reliability e Two piece removable connectors greatly simplify installa tion and hookup All wiring can be attached directly to the connectors before installing them in the SVL 6 Removable connectors accommodate up to 14 gauge wire pins making the SVL 6 compatible with most high defini
10. the speakers by turning the TECH TIP ate volume control on the SVL 6 fully counter clockwise or by pressing the ON OFF button You will need to activate the SVL 6 s Playing Two or More Speaker Pairs PROTECTION button Simultaneously whenever the overall system impedance might fall below 2 On the right side of the SVL 6 s front panel is a button 4 ohms labeled PROTECTION This button activates the SVL 6 s impedance correction circuitry The circuitry assures that your receiver or amplifier will see a safe operating load when playing multiple soeaker pairs simultaneously Since most receivers and amplifiers are not rated for use below a 4 ohm load you will need to activate the PROTECTION button whenever the overall system impedance might fall below 4 ohms Use the following chart as a guide for set ting the PROTECTION button WHEN PLAYING THE FOLLOWING 1 Make sure the amplifier or receiver power is OFF and set the volume to minimum 2 or more pairs of 4 ohm speakers Any combination of 4 and 8 ohm speakers Set the PROTECTION button to the correct position using the chart shown above 1 pair of 4 ohm speakers SPEAKER SELECTION VOLUME CONTROL SYSTEM 3 Set the SVL 6 volume controls which correspond to the speaker pairs vou wish to plav to maximum 4 Locate the appropriate ON OFF buttons on the SVL 6 Set them to the ON postion 5 Tum on the amplifier or receiver and select as source su
11. tion soeaker cables 100 tested electronically and acoustically for frequency response distortion and power handling Standard 17 width allows the SVL 6 to stack neatly with other standard size components May be used with 4 6 or 8 ohm speaker systems e ideal for both home and commercial sound installations Only an 1 8 standard screwdriver and wire stripper are required for installation Power handling 100 watts channel continuous music power Frequency response 20 Hz to 20 kHz 4 12 dB e Ten vear parts and labor warrantv e Proudiv made in the USA SPEAKER SELECTION VOLUME CONTROL SYSTEM Installation Considerations SVL 6 Power Handling The SVL 6 is designed for use with a or amplifier hav ing 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 IMPORTANT DO NOT USE THE SVL 6 WITH AMPS OR RECEIVERS RATED AT MORE THAN 100 WATTS PER CHANNEL RMS AT 8 OHMS Amplifier Impedance Load As more pairs of speakers are parallel connected to a receiver or amplifier the overall system impedance becomes lower For example if two pairs of 8 ohm speakers are connected in parallel the impedance will be 4 ohms two pairs of 4 ohm speakers in parallel beco
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