4
WA
15S
Operation Manual rev 1.0.0
4. Connectors / Cabling
4. Connectors / Cabling
The WA 15S is fitted with 4-pole speakON
®
connectors. Contacts will accept 6 sq. mm wire with an outside
diameter of up to 15 mm and a current rating of 30 A. The pins of the two Speakon sockets identified input/
output on the rear of the input panel are paralleled within the enclosure. White Acoustics have adopted the
following wiring standard for the product range:
speakON Connector
Signal
Pin 1+
LF1+
Pin 1-
LF1-
Pin 2+
N/A
Pin 2-
N/A
When choosing cable type, it is important select the correct cross sectional area in relation to the cable length
and the load impedance. A small cross sectional area will increase the cable’s series resistance, inducing
power loss and response variations (damping factor). Connectors wired with 2.5 sq. mm (12 gauge) cable will
be satisfactory under normal conditions; with very long cable runs, the wire size should be increased. Please
refer to the following table for guidance:
Cable Run (m)
C.S.A. Of Each
Conductor (mm)
Cable Resistance
(ohms)
% Power Loss into
8 ohms load
% Power Loss into
4 ohms load
10
2.5
4.0
6.0
0.14
0.09
0.06
1.7
1.1
0.73
3.5
2.2
1.5
25
2.5
4.0
6.0
0.35
0.22
0.14
4.3
2.7
1.8
8.6
5.4
3.6
50
2.5
4.0
6.0
0.69
0.43
0.29
8.6
5.4
3.6
17.0
11.0
7.2
10
2.5
4.0
6.0
1.38
0.86
0.58
17.0
11.0
7.2
35.0
22.0
14.00
