Wharfedale Pro R1604, Руководство по эксплуатации

Страница: 11 / 16

A great deal of mis takes in sound
installations can be down to wrongly
wired audio connections. It is important
that the connections are correct to suit
your system.
An unbalanced audio system cable is
typically a s ingle conductor shielded with
the centre conductor relaying the signal
and the shield at ground.
Using a balanced audio system is where
a two conductor shielded cable has
each of the two center 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 a balanced microphone to
the mixer. This will eliminate interference
such as mains hum. If a non balanced
microphone is used do not use this
microphone at the same time as a
microphone requiring phantom power
'on' as this could cause damage to the
non balanced microphone.
For the best results whilst using
balanced line level inputs, common
grounding should be avoided. This
means not connecting the ground on
both the mixer 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
mixer's input connector. The output
cable connector from the mixer when
connecting to another balanced unit
input should have the ground (shield)
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
manufacturer 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
mixer.
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 labeled cables so that connections
of + / hot go to their corresp/
hot etc. Some manufacturers run their
unit with balanced inputs and
unbalanced outputs , therefore care
should be taken with the connections
when inserted into the system.
Unbalanced System
Balanced System
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
R Series Mixers
R1604 & R2004 .10.