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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 likelihood
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 ampli-
fiers. All shield terminals of input connections are directly con-
nected 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
wire.
5 : 2.Analog audio input connections
Analog input is provided by means of Neutrik XLR female
connectors, one per channel input. Signal polarity of analog input
connections is shown in
Panel H, p.
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 channel
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 identification 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 supported
via two Neutrik etherCON ports located on the rightmost 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 connections up to 100 meters (328 ft).
Ethernet cabling must comply to TIA/EIA-568-B and adopt the
T568B scheme pinout, as shown in
12.
Panel I, p.
12.
5 : 4.Output connections
CLASS 3 WIRING
Output terminals are hazardous: wiring connection to
CLASS3
these terminals require installation by an instructed
WIRING
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
ArmoníaPlus 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
Panel I, p.
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.
12.
3-4
AES3 IN
1-2
ANALOG IN
1=GND
2 = IN+
3 = IN-
4
3
2
1
Gigabit Switch
1
2
3
4
5
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7
8
9
10
11
12
13
14
15
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17
18
19
20
21
22
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28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
UP Link
Dante™
Dante Controller
ArmoníaPlus
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