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INTRODUCTION
The ALTx UltraMatch™ Volume Control you have just purchased is a wall-
mounted Decora™ or Standard style, stereo speaker-level volume control.
It connects between the speaker outputs of an amplifier or receiver and a
pair of speakers.The 1X setting allows the volume control to be used as a
standard control. The 2X, 4X, and 8X settings allow it to be used as an
UltraMatch™ control. The UltraMatch™ volume control provides a
method of matching the minimum output impedance of the amplifier or
receiver, in addition to adjusting volume. It eliminates the need for a
speaker selector or impedance matching equipment. The ALTx adjusts vol-
ume level by attenuating the amplifier signal output of the ALTx to the
speakers. All Russound Volume Controls are manufactured using a high-
quality autoformer design which provides long life, excellent frequency
response, no heat build-up, and maximum power transfer from the ampli-
fier to the speakers. All Russound ALTx volume controls conform to UL
Standard 1492 First Edition, and for Canada Certified to CSA Standard
22.2 No. 1-M94. This certification assures that your ALTx volume control
has been designed and tested for safety.
INSTALLATION CONSIDERATIONS
• Near other wall controls
• Near a desk/workstation
• In entryways or exits
P-RING AND ELECTRICAL BOXES
From the wallplate/faceplate to the back of the ALTx control, the mount-
ing depth of the ALTx is 2 7/8". You must use a minimum of a standard
light switch plaster ring (p-ring) or a standard 20 cu. in. (or larger) electri-
cal box. Suitable P-Rings and electrical boxes are available from your
Russound dealer or a local electrical supply company. Using the P-Ring
during new construction (some building codes require that wall devices
be enclosed in electrical boxes. Check your local building code) is best
because it gives you unobstructed access to the full depth of the wall.
TYPE OF SPEAKER WIRE
For most applications, we recommend you use 16 or 18 gauge, stranded copper speaker
wire for the ALTx speaker connections. For wiring runs longer than 100 feet, 14 gauge
wire is recommended. Using speaker wire larger than 14 gauge for ALTx Volume Controls
is not recommended as the wire may not fit into the connectors. NOTE - Never use solid-
2
• At your bedside
• Close to a telephone and an intercom
• Near a jacuzzi
Jumper
Settings On
Circuit Boards
8 X
4 X
X
1 X - 2
X - 8 X
X1
2 X - 4
1 X
8 X
4 X
X
1 X - 2
X - 8 X
2 X - 4
1 X
8 X
4 X
X
1 X - 2
X2
X - 8 X
2 X - 4
1 X
8 X
4 X
X
1 X - 2
X - 8 X
2 X - 4
1 X
8 X
4 X
X
1 X - 2
X - 8 X
X4
2 X - 4
1 X
8 X
4 X
X
1 X - 2
X - 8 X
2 X - 4
1 X
8 X
4 X
X
1 X - 2
X - 8 X
X8
2 X - 4
1 X
8 X
4 X
X
1 X - 2
X - 8 X
2 X - 4
1 X
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