BGW 150 - Input Connectivity; 1;4 Inch Phone Jacks; 3-Pin XLR Connectors; Unbalanced Line Configuration

03002-1
STEREO INPUT
CONNECTIONS
Three-pin XLR
and in.
phone jacks are
provided
on the
rear of
the amplifier
for
input
connections.
Balanced
or
unbalanced lines
may be
used;
however if
input
cables
are longer
than
8
feet,
balanced lines
may
be necessary
to
maintain
the
signal-to-noise
ratio
and high
frequency
response.
1/4
INCH PHONE
JACKS
The
1/4"
phone jacks
are for
unbalanced
lines
only (single
conductor,
shielded)
and
may be used
directly.
Simply
connect
the shield to
the
outer
sleeve of
the
plug
and
the
inner conductor
to the tip,
or
buy
ready-made cables.
See
diagram
below.
CONNECT SHIELD
HERE
ms
CONNECT
INNER
CONDUCTOR
HERE
^SLEEVE
ID
f
\
TIP
3-PIN XLR
CONNECTORS
The 3-pin
XLR
connectors
may
be used
with
balanced
(2-conductor,
shielded)
or
unbalanced
lines.
They are
connected
to
the
amplifier's
inputs
by
using the
8-pin
transformer
socket;
they
cannot be
used
directly.
Unbalanced
Lines
To use
the
3-pin XLR
connectors with
unbalanced
lines, a
jumper plug
(BGW P/N
1350-0108) must
be
inserted
into
each
transformer
socket.
The
jumper
plug
connects
pin //I to
pin
#7,
and
pin //6
to pin #8 as
shown.
JUMPER
PLUC
MUST
BE USED
WITH
UNBALANCED
LINES
With
the jumper
plug
in
place,
the 3-pin
XLR
connector has pin
#2
connected
to
ground,
and pin //3
to
the
input
of
the
amplifier.
Note:
Rear
of
plug
shown.
When
using
single
conductor
shielded
cable
for
unbalanced
lines,
connect
the
inner
conductor
to pin #3
and the
shield
to pins #1 &
//
2.
When using
2-conductor
shielded
cable for
unbalanced
lines,
connect
the
high level
signal wire to
pin
//3,
the
low level
signal
wire
to pin
//2,
and
the
shield to
pin //l.
Note:
Shield
not
connected
to
anything
at signal
source.