JBL Professional JBL SR-X Speakers 981-00052-02 - Manual (Page 8)

Cable & Connections
Passive Systems & Subs (Parallel mode)
Bi-Amp Systems & Subs (Discrete mode)
2 Core
4 Core
± 2 HF Signal or
LF #2 Sub Signal
± 1 LF Signal or
LF #1 Sub Signal
± 1 Full Range Signal
or
Sub Signal
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.
NL4 MPR Connector
NL4 MPR Connector
8
Wire Gauges
Selection of the appropriate wire gauge is important to system operation. A cable that’s 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.
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 Size (A
WG)
16 Ohm Load
8 Ohm Load
4 Ohm Load
.52
1.65
5.26
16.77
mm2