User Manual
WNER'S MANUAL
PVCKT5
www.pyleaudio.com
Impedance
Matching
Stereo
Volume
Control
Intr
od
uc
ti
on
This
is a wall mounted impedance matching stereo volume control, which connects between the speaker level output
of
an amplifier, receiver
or
speaker selector and a pair
of
speakers.
Volume
Control
Placeme
nt
When
deciding where the volume control will be mounted in the wall, consider the various ways it will be used.
The
primary listening area and the ease
of
running the wire
to
your chosen location are the important things
to
keep in mind.
The
most common locations
to
mount volume controls are by the door as you walk into the room, next
to
existing wall
fixtures,
or
in the area that you will be listening
to
music.
If
you
do
not understand any part
of
these instructions, please
contact your system dealer. Improper wiring could cause damage
to
your audio system.
Figure
#1
Do
not
put
the
volume
control
i
nto
the same
box
as a 110v
AC
c
ir
cuit.
(i.
e.
light
sw
i
tc
h, elect
rical
outl
et, e
tc
.).
Speaker wires can act as an "antenna"
for electrical noise. Locating speaker wires too close
to
a light switch
or
dimmer may cause a buzzing
or
popping sound to be heard through the speakers.
If
you must locate the volume control near electrical
devices, use
a separate electrical box.
Once
a location has been chosen, you may install
the volume control after you have first installed
a
standard single gang plaster ring, or a single gang
electrical box (light switch type).
-~
'"-'
111
//
W
IIt~Ch
.....
"
••
I / /' STEP 1
~
I
Fl
.
0Il.
~ l c
STR
IP
SPEA
K
ER
OR
AM
PUFI
ER
.
Il.
Il
. 11"'''''. 1 WIRE'S
IN
S
ULATI
ON TO 1/ 4"
OL.
Ol. FROM
THE
END AND
INSER
T
Wiring
the
Volume
Control
CAUTION: Please make sure your amplifier
or
receiver is turned
off
before proceedi
ng.
This volume control can be used with
up
to
14-gauge wire.
STEP 2
TIGHTEN
WIR
E
CLAMP
SC
REW
WITH
SC
REWDR
IVER
Measure the distance from the speaker to the amplifier. For distances
of
50 feet
or
less, use 18-gauge speaker wire
or
ordinary lamp cord. For
distances greater than 50 feet, use heavier 16-gauge wire.
INTO
PR
OP
ER
SLOT
Fi
gu
re #2
SPEAKERS
RIGHT LEFT
For best results, strip the speaker wire no more than
114"
from the end.
Loosen the screws on the underside
of
the wire block terminal to allow
the wire to be pushed completely into the opening, then tighten the
screws
to secure the wire.
(See
Fi
gure
#1).
If
you need to remove the
wire,
simply loosen the screws on the underside
of
the wire block terminal.
AMPLIFIER
• •
Refer
to
Figure
#2
when wiring the volume control:
1.
Connect the amplifier
or
receiver s left speaker output
to
the left input
terminals on the removable wire block terminal. Please observe proper
polarity
of
the connections (+ amplifier to + input on the volume
contron.
2.
Repeat step 1 for the right side.
3.
Connect the wires from the left speaker
to
the left speaker output
terminals on the wire block terminal. Please observe proper polarity
of
the wires for correct speaker phase (+ speaker
to
+ output).
4.
Repeat step 3 for right speaker connection.
CAUTION:
If
th
e input and output connections are reversed,
th
e minimum
setting on
th
e volume control will cause a short
ac
ross
th
e amplifi
er
or
recei
ve
r output termi
nal
s,
re
sulting in serious damage to your amplifier or
recei
ver.
Please double check steps 1
th
rough 4. This volume control
cannot
be
connect
ed
in series with another volume control.
Adjusting
the
Bridge
Clips
for
Mult
i
ple
Speakers
(See
Figure
#3)
1x
Setting
Both Clips
on
Top
(1x) Pins
2x
Setting
Both Clips
on Middle
(2x) Pins
Speaker
Outputs
INPUT
WIRES
R R L L
+ .
+ -
• •
OUTPUT
WIRES
SIDE VIEW
VO
LUME
CON
TR
OL
Figure #3
4x
Setting
Both Clips
on Bott
om
(4x) Pins
Page 2
Owner's
Manual
This volume control is designed
to
run multiple pairs
of
speakers without damaging your amplifier
or
receiver.
The
adjustment
is
made by using
bridge clips that can be easily changed. NOTE:
Both
bridge
clips
must
have the same se
tting
- i.e. 1x,
2x
or
4x.
Failur
e to
properly
set the
bridge
clips
may
result
in
damage to
your
amplifier
or
receiver. Plea
se
follow
the
recommendations
in
thi
s
section
carefully
. Failure to
properly
s
et
the
bridge
clips
may
res
ult
in
damage to
your
a
mplifier
or
receiver
.
Use the chart in Figure
#4
to
determine a) the maximum number
of
speaker pairs that can be connected to your amplifier
or
receiver and
b)
the
appropriate bridge clip setting
(1
x, 2x
or
4x)
to use on the volume control.
1.
In the
first
column,
determine
the
minimum
impedance
capability
of
your
amplifier
or
receiver.
2.
Move
across
the
row
to the
number
of
80hm
speaker
pairs
you
wish to use.
3.
T
he
resulting
number
(1
x,
2x
or
4x) is the
bridge
clip
setting
appropriate
for
your
configuration.
NOTE:
Both
bridge
clips
must
have
the
same
setting.
4.
The
gray
area
indicates
a
setting
that
is
slightly
below
the
amplifier
or
receiver
's
minimum
impedance
but
wi
ll
most
likely
work.
Figure #5
SPEAKER
WI
RE
/
vs
r4
5
VO
LU
ME CO
NT
RO
L
(s
uppli
ed)
DECORATOR PLATE (s
upp
lied)
KNOB
(s
uppli
ed)
DECORATOR COVER PLATE (
supplied
)
~
COVER
PLATE
SCREWS
(supplied)
Number
of
Bohm Speaker
Pa
irs
Figure #4
Mounting
the
Volume
Control
Once the
control
has
been
wired, it is
ready
to
be
mounted
into the wall.
Referring
to
Figure
#5
,
place
the
components
of
the
volume
control
into
the
wall
in the
order
illustrated.
Use the
enclosed
screws
to
hold
the
components
in
place.
NOTE
: The
rotary
switch
is
shipped
with the
control
turned
as
far
counterclockwise
as
it
will
turn
off
.
If
you
changed
this,
return
it to the
full
counterclockwise
position
before
starting
installation.