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Connections
Make sure the power switch is off before attempting to
make any input or output connections.
By using good quality input and speaker cables, the like-
lihood of erratic signal behavior is reduced to a minimum.
Whether you make them or buy them, look for good quality
wires, connectors and soldering techniques.
5 : 1.Signal grounding
There is no ground switch or terminal on the X Series
amplifiers. all shield terminals of input connections are di-
rectly connected to the chassis. This means that the unit's
signal grounding system is automatic. in order to limit hum
and/or interference entering the signal path, use balanced
input connections.
in the interests of safety, the unit MuST always operate
with electrical safety earth connected to the chassis via the
dedicated protective Earth
5 : 2.Analog audio input connections
analog input is provided by means of Neutrik XLr fe-
male connectors, one per channel input. Signal polarity of
analog input connections is shown in
5 : 3.Digital audio input connections
Digital input is supported via aES3 (aES/EBu) and
Dante™ standard protocols in Dante equipped devices.
aES3 connectors are Neutrik XLr female, one per chan-
nel pair. The aES3 connection carries a channel pair through
a 110 Ω nominal impedance wire in the form of a balanced
(differential) digital signal: in aES3 XLr connectors the iden-
tification of hot and cold pins is not an issue; take care to
never tie pin 2 or pin 3 (balanced signals) to pin 1 (ground).
avoid the use of microphone cables in aES connections:
impedance mismatch can result in signal reflections and
jitter, causing bit errors at the receiver.
in Dante equipped devices, Dante connectivity is sup-
ported via two Neutrik ethercoN ports located on the right-
most side of the X8 and X4 rear panels. Fast Ethernet (iEEE
802.3u, 100 Mbit/s) and Gigabit Ethernet (iEEE 802.3ab,
1 Gbit/s) network protocols are supported; cat5e or cat6
standard uTp twisted pair cables shall be used for connec-
tions up to 100 meters (328 ft).
Ethernet cabling must comply to Tia/Eia-568-B and
adopt the T568B scheme pinout, as shown in
wire.
panel H, p.
12.
panel i, p.
12.
5 : 4.Output connections
CLASS 3 WIRING
output terminals are hazardous: wiring connection
CLASS3
to these terminals require installation by an instruct-
WIRING
ed person and the use of ready made leads. Take care to
secure the output terminals before switching the device on.
Single-ended and bridge-tied loudspeakers connection
are supported as shown in
panel J, p.
5 : 5.Ethernet connections
X Series amplifier platforms can be remotely controlled
via an Ethernet connection through a personal computer
and powersoft armonía pro audio Suite software.
powersoft recommends the use of Ethernet cat5
straight through – patch – cables with pin/pair assignments
Tia/Eia-568-B, i.e. T568B, as shown in
L1
L2
L3
N
PE
ac mains
MAINS
3PH
1PH
L1
L
L2
L3
7-8
AES3 IN
5-6
N
N
ANALOG IN
8
7
6
5
aES3
analog
FIG. 2: Example of X8 connections.
5
12.
panel i, p.
12.
3-4
AES3 IN
1-2
ANALOG IN
1=GND
2 = IN+
3 = IN-
4
3
2
1
Gigabit
Switch
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Dante™
Dante controller
armonía pro audio Suite
English | 21
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