JBL Professional loudspeakers SR-X Series - Manual (Page 8)

CABLE AND CONNECTIONS
Passive Systems & Subs (Parallel Mode)
Bi-Amp Systems & Subs (Discrete Mode)
Wire Gauges
Each connector panel incorporates two Neutrik® Speakon® connectors. The second connector facilitates the
ability to "loop through" to other SR-X speakers in the system. The diagrams below detail the cable-side
connections.
Selection of the appropriate wire gauge is important to system operation. A cable that is too light will result in
amplifier power being wasted due to the series resistance of the cable and in loss of low-frequency performance
due to degraded damping factor.
2 -
2 +
1 +
1 -
+ 1
- 1
2 -
2 +
1 +
1 -
+ 2
- 2
+ 1
- 1
Wire Gauge Chart for 0.5 dB Loss
20
15
10
5
5
1.5
50
15 100
30
150
46
200
61
250
76
300
91
Length of Run (ft.) / (m)
Wire Siz
e (A
WG)
16 Ohm Load
8 Ohm Load
4 Ohm Load
.52
1.65
5.26
16.77
mm2
8