Stereo Volume Control
OWNERS MANUAL
SpeakerCraft
®
Volume Control
The SpeakerCraft VST-45 is a wall mount
stereo volume control. It connects
between the speaker level output of an
amplifier, receiver or speaker selector and
a pair of speakers.
Caution:
If you do not understand any part of
these instructions please contact your
audio dealer. Improper wiring could
cause damage to your audio system.
Control Placement
When deciding where the volume con-
trol will be mounted in the wall, consider
the various ways it will be used. The
primary listening area and the ease of
running the wire to your chosen location
are the important things to keep in mind.
The most common locations to mount volume controls are by the door as you walk into the room, next to
existing wall fixtures, or in the area that you will be listening to music.
Do not put the control into the same box as a 110VAC circuit. (i.e. light switch, electrical outlet, etc.) Speaker
wires can act as an "antenna" for electrical noise. Locating speaker wires too close to a light switch or dimmer
may cause a buzzing or popping sound to be heard through the speakers. If you must locate the VST45 near
electrical devices, use a separate electrical box.
Once a location has been chosen, you may install the control by using a standard single gang plaster ring, or
a single gang electrical box (light switch type).
Wiring the VST45
(See Figure #1)
Caution: Please make sure your amplifier or receiver is off before proceeding.
1. Connect the amplifier's or receiver's left speaker output to the left side of the input terminal (marked AMP)
on the volume control. Connect the amplifier's or receiver's right output to the right side of the input terminal.
Please observe proper polarity of the connections (+ to +, - to -).
2. Connect the left speaker cable to the left speaker output terminal (marked SPEAKER). Connect the right
speaker cable to the right speaker output terminal on the volume control. Please observe proper polarity of the
connections (+ to +, - to -).
Caution:
If the input and output connections are reversed the minimum setting on the volume control would present
a short across the amplifier or receiver output terminals. This may seriously damage your amplifier or receiver.
Please double check steps 1 and 2. This volume control cannot be connected in series with another volume
control.
R
L
LEFT
Speaker
Outputs
AMPLIFIER
INPUT
WIRES
OUTPUT
WIRES
RIGHT
BOTTOM
VIEW
VST45
VOLUME
CONTROL
+ - - +
- +
+ -
SPEAKER
L
+
L
-
R
-
R
+
AMP
L
+
L
-
R
-
R
+
SPEAKERS
1.) PUSH WIRE INTO
TERMINAL HOLE
2.) TIGHTEN SCREW
TERMINALS
Figure #1
VST45