2
1
3
1
2
3
BALANCED INPUT WIRING TO WHARFEDALE PRO UNIT WITH XLR CONNECTORS
BALANCED OUTPUT
SIGNAL DIRECTION
INPUT to Wharfedale Pro unit
Ground (earth)
CABLE
Only connect ground if hum occurs
,,
BALANCED INPUT WIRING TO WHARFEDALE PRO UNIT WITH 1/4 JACK to XLR CONNECTORS
SIGNAL DIRECTION
BALANCED OUTPUT
INPUT to Wharfedale Pro unit
1
2
3
Ground (earth)
CABLE
Only connect ground if hum occurs
SLEEVE
RING
TIP
RING
2
1
3
1
2
3
BALANCED OUTPUT WIRING FROM WHARFEDALE PRO UNIT WITH XLR CONNECTORS TO BALANCED UNIT
OUTPUT from Wharfedale Pro unit
SIGNAL DIRECTION
BALANCED INPUT
Ground (earth)
CABLE
Only connect ground if hum occurs
TIP
SLEEVE
Ground (earth)
CABLE
TIP
SLEEVE
INPUT to Wharfedale Pro unit
SIGNAL DIRECTION
OUTPUT
INPUT
SIGNAL DIRECTION
OUTPUT Wharfedale Pro unit
,,
UNBALANCED INPUT AND OUTPUT WIRING WITH MONO 1/4 JACK CONNECTIONS
2
1
3
Ground (earth)
CABLE
Only connect ground if hum occurs
RING
SIGNAL DIRECTION
INPUT to
Wharfedale Pro unit
TIP
SLEEVE
,,
BALANCED INPUT WIRING TO WHARFEDALE PRO UNIT WITH XLR CONNECTORS to STEREO 1/4 JACK
BALANCED OUTPUT
TIP
SLEEVE
Ground (earth)
CABLE
Only connect ground if hum occurs
SLEEVE
TIP
RING
SIGNAL DIRECTION
INPUT to Wharfedale Pro unit
,,
BALANCED INPUT WIRING TO WHARFEDALE PRO UNIT WITH STEREO 1/4 JACK to XLR CONNECTORS
BALANCED OUTPUT
A great deal of mistakes in sound
installations can be down to wrongly
wired audio connections. It is
important that the connections are
correct to suit your system.
Unbalanced System
An unbalanced audio system is
typically a single conductor shielded
with the centre conductor relaying the
signal and the shield at ground.
Balanced System
Using a balanced audio system is
where a two conductor shielded cable
has each of the two centre conductors
carrying the signal but of opposite
phase. This gives each conductor an
equal but inverted potential difference
from that of the ground.
It is recommend that you use balanced
audio connections if the unit before
your crossover has a balanced output.
This will eliminate interference
such as mains hum. For the best results
common grounding should be avoided.
This means not connecting the ground
on both the crossover input and output
connectors. Wharfedale Pro advise
that you connect the ground (shield) of
the input connecting cable to the
ground of the signal source while
making sure the ground (shield) is not
connected to the crossover input
connector. The output cable connector
from the crossover when connecting to
an amplifier should have the ground
(shield) connected. The input
connector ground (shield) to the
amplifier should not be connected.
This is the process by which the
ground (shield) is connected (tied) at
the source unit but is not connected to
the destination unit. If hum develops in
some instances the ground (shield)
can be connected on the input. Some
manufacturers have units that
recommend that the input connector
ground (shield) is tied and the output
disconnected. In this instance you may
need to connect the input connector
ground (shield) going to the input of
the Wharfedale Pro unit.
If an unbalanced system is used with
XLR connections please connect pin 3
to pin 1 (ground) of the connector. This
will mean that pin 2 transports the
positive (+ / hot) signal. If pin 1 and 3
are not connected this results in the
,
,
negative (- / cold) input being open .
This will give an audible degradation of
the signal to noise ratio. This would
relate to both the input and output
connectors and involve the cable
ground (shield) connected at both.
Please note that some manufacturers
run their units with pin 2 (- / cold) and
pin 3 (+ / hot). This should be looked
out for and then the wiring could be
modified with labelled cables so that
connections of + / hot go to their
corresp / hot etc. Some
manufacturers run their units with
balanced inputs and unbalanced
outputs, therefore care should be
taken with the connections when
inserted into the system.
L E C T R O N I C
C R O S S O V E R
M A N U A L
