Owner's Manual

TABLE
OF
CONTENTS
Introduction
1
Features
and
Benefits
Installation
Considerations
3
Installation
6
Operation
9
Specifications
10
-NILES
..
ERPROOF
STEREO
VOLUME
CONTROLS
INTRODUCTION
The
WVC1
OOK
is
a weatherproof stereo impedance-magnifying volume control that connects
between the speaker-level output of
an
amplifier, speaker selector, or a Niles
VCSHUB8
distribution hub and your
speakers.
The
WVC1
OOK
is
a wall-mounted volume control designed specifically for environmental
use.
It
adjusts the volume
of
remotely located
speakers
to which they
are
connected by attenuating
the amplifier signal. To
assure
minimal dissipation
of
internal power with virtually no power
wasted
as
heat,
Niles volume controls
use
autoformers instead of
L-pads
as
the volume-
control! i
ng
element.
The
WVC1
OOK
is
an
impedance-magnifying (IM)
volume control. Unlike other brands, it
has
additional autoformer windings that magnify the impedance of connected
speakers,
while
allowing
all
12
steps
to adjust the volume of the sound. Switches on the
PC
board select
these
windings.
With the volume control providing impedance protection for your amplifier, you can create
systems
with no additional impedance-matching devices between the volume control and the
amplifier.
In
a typical application of
IM
controls, a
system
has
eight pairs
of
8-ohm
speakers
throughout
the house and in outdoor locations.
Connect
each pair
of
speakers
to a
WVC1
OOK
volume
control with
its
switch in the 8x position, eliminating the need for
an
external impedance-
matching device to protect the amplifier.
Even
when playing all eight speaker pairs at once, the
amplifier runs
at
normal operating temperatures.