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ES 40 USER MANUAL
R
stage accompany
220-240 V
1
2
3
4
No.
5
of
ES 40s
6
7
8
9
10
Table 3-3
Maximum cable length as a function of the cable gauge and the number of
ES 40s supplied through the cable.
3.2
Audio Connections
The XLR connectors (audio in and audio link) of the ES 40 are wired as follows:
Pin 1 = ground
Pin 2 = normal phase (signal+ or "hot")
Pin 3 = inverted phase (signal- or "cold")
It is not advisable to disconnect the ground pin at either side of the signal cable. Hum caused
by ground loops can practically always be solved with the use of the ground lift switch at the
back of the amplifier.
Always use high quality XLR connectors and shielded signal cables. Using the signal link
connectors, up to 30 ES 40s can be linked without a problem. If more than 30 ES 40s 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 apparatus. If this is not possible, connect pin 3 to pin 1 at the input of
the ES 40.
1.5
2.5
4.0
45
75
120
23
38
15
25
11
19
9
15
8
13
6
11
6
9
5
8
5
8
Cable Gauge (mm
6.0
10.0
180
300
60
90
150
40
60
100
30
45
75
24
36
60
20
30
50
17
26
43
15
23
38
13
20
33
12
18
30
NEUTRIK
3-4
2
)
16.0
480
240
160
120
96
80
69
60
53
48
2
1
3
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