VC50S
STEREO VOLUME CONTROL
Installation Instructions
PLEASE NOTE: Installation should be performed by qualified service personnel, and must meet all local building codes.
STEP 1: DETERMINE & SET IMPEDANCE MULTIPLICATION SETTINGS
1.) Count the total number of pairs of 4 Ohm and 8 Ohm speakers you are connecting. Count pairs of 6 Ohm speakers as
4 Ohm speakers.
2.) Determine if the amplifier can support a 4 Ohm or 8 Ohm speaker load. You can typically find this information in the amplifier
owner’s manual.
3.) Determine the correct impedance match jumper position from the charts shown below. See Figure 2 if your amplifier can handle
a 4 Ohm speaker load. See Figure 3 if your amplifier can handle an 8 Ohm speaker load.
4.) Set the impedance match jumpers on all of the volume controls in the system to the same position (2X, 4X, 8X or 16X).
See Figure 1 below.
WARNING!
Make sure to set the impedance
match jumpers on all of the volume
controls in the system to the same
position, otherwise serious amplifier
damage may occur.
NOTICE!
Make sure to set both
impedance match jumpers on the
volume control to the same position.
jumper set to 2X
Figure 1
AMPLIFIER IS STABLE TO 8 OHMS
AMPLIFIER IS STABLE TO 4 OHMS
Number of pairs of 8 Ohm speakers
Number of pairs of
4 Ohm speakers
Number of pairs of
4 Ohm speakers
Number of pairs of 8 Ohm speakers
Figure 2
Figure 3
Destination Audio does not recommend installing more than 8 volume controls in parallel. Destination Audio also does not recommend
installing more than two (2) 8 Ohm speakers per channel on each volume control without additional impedance protection.
PLEASE NOTE: High impedance match setting’s affect on volume
Setting the impedance match jumpers higher than 2X will yield less power per pair of speakers. For example: An amplifier rated at 50
Watts per channel RMS into 8 Ohms is to be used for 8 pairs of speakers. In order to accommodate 8 pairs of 8 Ohm speakers, an 8X
impedance match setting must be used. Therefore, this will limit the 50 Watts of power to 12.5 Watts for each speaker pair, or oneeighth of the amplifier’s power.
For assistance, please call 800-543-2205 or visit http://www.destinationaudio.com.
STEP 2 (optional): CHANGE TRIM COLOR SCHEME
This Destination Audio Volume Control comes with four different color scheme trim kits: White, Almond, Bone, Black and Brown. The
Volume Control comes with the White trim scheme, but you can change the color scheme by following these steps:
1.) Use a small screwdriver or
other similar tool to gently push
the plastic tabs through the
metal back plate.
Figure 4
2.) Gently pry the faceplate off of
the metal back plate.
3.) Remove the slide knob by
twisting to the left or right.
4.) Put the new slide knob into the
new faceplate by twisting to
the left or right. Some bending
is normal and is to be expected.
5.) Once the new slide knob is in
the new faceplate, check to make
sure it slides easily in the slot.
6.) Set the volume control’s level
to maximum and move the
slide knob to the top of the
faceplate.
7.) Align the faceplate tabs in the
top two holes in the metal back
plate. Then, make sure the
other two plastic tabs align with
the other two holes in the metal
back plate.
8.) Gently (but firmly) press the
new plastic faceplate onto the
metal back plate. Then, check
for smooth and easy operation.
STEP 3: INSTALLATION
1.) Strip 1/4” to 3/8” of the insulation from the end of each wire and tightly twist the end of each wire until no frayed
ends remain.
2.) Insert each wire from the amplifier into the proper L+, L-, R+ or R- input terminal and use a small screwdriver to
tighten each screw; see Figure 4. Make sure to observe proper polarity for each connection.
3.) Insert each wire from the speakers into the proper L+, L-, R+ or R- output terminal and use a small screwdriver to
tighten each screw; see Figure 4. Make sure to observe proper polarity for each connection.
4.) Insert both input and output terminals into the proper locations on the volume control; see Figure 5.
5.) Insert the volume control into the junction box and use the two longer screws to mount the volume control into
the junction box.
Figure 5
6.) Place the outer trim ring onto the volume control face and use the two shorter screws to affix the outer trim ring
to the volume control.
Technical Specifications
Audio Power Handling:
Frequency Response:
Switch:
Wiring Requirements:
Mounting:
Impedance Multiplication:
Unit Dimensions:
Faceplate Dimensions:
Warranty:
25 Watts continuous (RMS)/50 Watts maximum
25Hz — 20kHz
12 position slide (including ‘Off’)
14-16 gauge wire. Input & Output (separate):
Two separate two-conductor speaker wires, or 1
four-conductor speaker wire.
Fits most standard single-gang junction boxes
2X, 4X, 8X & 16X
111/16”W x 27/8”H x 29/64”D
23/4”W x 41/2”H
25 Years
Wiring Diagram
It is Destination Audio policy to continuously incorporate improvements into our products; all specifications are subject to change without notice.
Copyright © 2007, Destination Audio. All Rights Reserved.
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