Owner's Manual
Installation Instructions:
1. Select Location- Select a convenient location in each room or area
that speakers are desired. You will need one volume control for each
pair of speakers. The most common height is the same level as the
electrical light switches in your home or ofce.
CAUTION: Be certain that there are no electrical wires, water pipes,
heat or cold air return ducts in the planned installation area before you
start cutting into the wall. If there is an electrical outlet anywhere nearby,
turn off the circuit breaker to avoid possible injury. Use of an electrical
wire nder and/or stud nder (found at most home center stores) may
be of assistance.
2. Mounting Box- The volume control is made to be mounted into a
standard single duplex electrical box (also found at most home center
stores). Mount the box using the instructions provided.
3. Speaker Wire- Use UL approved CMR, CL-2 or CL-3 jacketed speaker
wire when possible. Use minimum 16 gauge wire on runs under
100 feet and 14 gauge on runs over 100 feet. You should run one,
4 conductor wire from the amplier location to each volume control,
this is called “home run” wiring. Next, run a 2 conductor wire from the
volume control to each speaker location.
4. Connector Hookup- Remove the green speaker PCB connectors from
the back of the unit. Loosen the set screws in the connector.
When hooking up the speaker wires to the connectors be sure to
observe the correct polarity. This is very important because improper
polarity will cause unwanted frequency response aberrations. It is also
important to make sure that the wires from the amplier are connected
to the “Input” and the speaker wires are connected to the “Output”.
Leave approximately 6-8 inches of wire length inside the box. For future
reference, mark the wires inside the box with their location using a
permanent marker. Remove 2" of the jacket from the speaker wire. Using
wire strippers remove about 1/4" of insulation from each wire. Twist the
strands of wire tightly before inserting them into the connectors (for the
best possible connection, you may want to tin the wires if you have a
soldering iron available). Insert the speaker wires into the connectors
and tighten the set screws.
5. Attach Connectors- Push the green connectors with wire attached
onto the posts on the PCB.
6. Installing the Control- Install the control in the single duplex gang box
by gently pushing the wires into the box and mounting the control using
the two 1" athead screws supplied. DO NOT OVERTIGHTEN.
7. Reinstall Wall Trim Plate- With the two 1/4" screws removed earlier
reinstall the trim plate.
8. Setting Impedance- Set the volume control to the proper impedance
using the chart listed above.
Impedance Matching Sliding
Speaker Volume Control
Model: VS100
User Manual
Metra Electronics Last Revised: 6/24/2020
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460 Walker Street, Holly Hill, FL 32117-2699
Specifications are subject to change without notice.
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