background image

Features and Benefits

The SVL-4AB offers a number of improvements over other
speaker selector/volume controllers:

Amplifier A/B Switching—The SVL-4AB provides 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 reliably operate simultaneously.

The SVL-4AB uses 12-position POP-FREE volume controls
which are superior to 10-position designs. You get a
broader range of adjustment —there are 10 steps of atten-
uation 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".

Greater dynamic range—you get 42 dB of total attenua-
tion instead of the usual 20 or 30 dB.

Pre-printed Room Labels are included for easy identification
of speaker ON/OFF buttons.

Isolated left and right channel ground returns make the
SVL-4AB compatible with all types of amplifiers.

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

TECH

SUPPORT

HOTLINE

If you have

questions regarding

the operation of the

Niles SVL-4AB, con-

tact your local Niles

dealer or Niles

Customer Service at

1-800-289-4434.

Summary of Contents for SVL-4AB

Page 1: ...SVL 4AB I N S T A L L A T I O N O P E R A T I O N G U I D E M O D E L SVL 4AB SPEAKER SELECTION VOLUME CONTROL SYSTEM WITH A B AMPLIFIER INPUTS SVL 4AB...

Page 2: ...combi nation of speakers and amplifiers A perfect application for the SVL 4AB is individually control ling speaker ON OFF and volume adjustment for four pairs of speakers connected to two receivers D...

Page 3: ...f adjustment there are 10 steps of atten uation 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 Greater dynamic range you get 42 d...

Page 4: ...iring can be attached directly to the connectors before installing them in the SVL 4AB 100 tested electronically and acoustically for frequency response distortion and power handling Standard 17 width...

Page 5: ...ce 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...

Page 6: ...pairs of 4 ohm speakers playing the load drops to slightly under 4 ohms It is recommended that you use the SVL 4AB with receivers or amplifiers that are capable of driving a 4 ohm load Consult your N...

Page 7: ...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 4AB wiring near electrical devices route the speake...

Page 8: ...S Y S T E M Figure 1 Using a Tube Amplifier Tube Amplifier Niles SVL 4AB 150 150 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 PROTECTION ON OFF Ni...

Page 9: ...Miami Florida USA NILES 12 position volume control provides greater attenuation than conven tional 10 position designs Recessed areas for custom room labels Attractive low profile design Each speaker...

Page 10: ...9 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 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 PROTECTION ON...

Page 11: ...the amplifiers and speakers and the negative terminals on the SVL 4AB to the negative terminals on the amplifiers and speakers If you are using only one amplifier it should be connected to the Amplifi...

Page 12: ...the SVL 4AB which corre sponds to the speaker pair you wish to play Set it to the ON position 4 Adjacent to the ON OFF button is the amplifier A B but ton Choose an amplifier for the active speaker p...

Page 13: ...imultaneously 1 Make sure both of the amplifiers are OFF and set the vol ume controls to minimum 2 On the right side of the SVL 4AB s front panel is a button labeled PROTECTION This button activates t...

Page 14: ...ume capability and should quickly reduce the volume to avoid damaging your speakers 8 Using the appropriate volume controls on the front of the SVL 4AB adjust the volume of the speakers to the desired...

Page 15: ...to maintain constant impedance protection regardless of the position of the front panel switch This will safeguard either or both of your ampli fiers from being overdriven due to accidental or imprope...

Page 16: ...x 305 238 0185 1999 Niles Audio Corporation All rights reserved Because Niles believes in constantly improving its products Niles reserves the right to change product specifications without notice Nil...

Reviews: