3.2
Audio Connections
The XLR connectors (audio in and audio link) of the ES 20 are wired as follows:
Pin 1
= ground
Pin 2
= normal phase ( or “hot”)
Pin 3
= inverted phase (signal- or “cold”)
Always use high quality XLR connectors and shielded signal cables. Using the signal link
connectors, up to 30 ES 20s can be linked without a problem. If more than 30 ES 20s need to
be interconnected, a separate signal driver should be used.
The input stages are electronically balanced. To make optimum use of the balanced input stages
even in unbalanced situations, use balanced signal cables and connect pin 3 to pin 1 at the
output of the preceding equipment. If this is not possible, connect pin 3 to pin 1 at the input of
the ES 20.
NEU
T
RIK
+
+
1
2
3
220-240 V
Cable Gauge (mm
2
)
1.5
2.5
4.0
6.0
10.0
16.0
No.
of
ES 20s
1
90
150
240
360
600
960
2
45
75
120
180
300
480
3
30
50
80
120
200
320
4
23
38
60
90
150
240
5
18
30
48
72
120
192
6
15
25
40
60
100
160
7
13
21
34
51
86
137
8
11
19
30
45
75
120
9
10
17
27
40
67
107
10
9
15
24
36
60
96
Table 3-3
Maximum cable length as a function of the cable gauge and the number of
ES 20s supplied through the cable.
CONNECT
IONS
stage accompany
R
ES 20 USER MANUAL
3-4
