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INTRODUCTION
The LPTx 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 X1 setting allows the volume control
to be used as a standard control. The X2, X4, and X8 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
LPTx adjusts volume level by attenuating the amplifier signal output of
the LPTx to the speakers. All Russound Volume Controls are manufac-
tured using a high-quality autoformer design which provides long life,
excellent frequency response, no heat build-up, and maximum power
transfer from the amplifier to the speakers.
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 LPTx control, the mount-
ing depth of the LPTx. You must use a minimum of a standard light
switch plaster ring (p-ring) or a standard electrical 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 LPTx speaker connections. For wiring runs longer than 100 feet, 14 gauge
wire is recommended. Using speaker wire larger than 14 gauge for LPTx Volume Controls
is not recommended as the wire may not fit into the connectors. NOTE - Never use solid-
core, aluminum or Romex® type wire with volume controls. When running speaker wires
inside walls, most states and municipalities in the U.S. specify that you must use a special
type of speaker wire. Usually, the requirement is that the wire has a specific "CL" fire rat-
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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