Master Audio
5. APPENDIX
POWER LOSSES(%) AND DAMPING FACTOR, RELATED TO WIRE
LENGTH AND SECTION
Wire
Section
2
length
(mm
)
(m)
0.75
1.50
1
2.50
4.00
0.75
1.50
5
2.50
4.00
0.75
1.75
10
2.50
4.00
0.75
1.50
20
2.50
4.00
0.75
1.50
50
2.50
4.00
(*) Referred to an amplifier with a Damping Factor of 200:1. Wire sections
2
under 2.50 mm
are completely inadvisable.
For fixed installations with 4 Ohms load, it is better to have one wire for each
speaker system. It is not advisable to bridge one cabinet to another.
EL Series. Version 1.4
Resistance
(Ohms)
8Ohms 4Ohms 2Ohms
0.042
0.53%
0.025
0.31%
0.013
0.16%
0.008
0.10%
0.210
2.63%
0.125
1.56%
0.065
0.81%
0.040
0.50%
0.420
5.25% 10.50% 21.00%
0.250
3.13%
0.130
1.63%
0.080
1.00%
0.840
10.50% 21.00% 42.00%
0.500
6.25% 12.50% 25.00%
0.260
3.25%
0.160
2.00%
2.100
26.25% 52.50%
1.250
15.63% 31.25% 62.50%
0.650
8.13% 16.25% 32.50%
0.400
5.00% 10.00% 20.00%
36
Power losses
1.05%
2.10%
0.63%
1.25%
0.33%
0.65%
0.20%
0.40%
5.25%
10.5%
3.13%
6.25%
1.63%
3.25%
1.00%
2.00%
6.25%
12.50%
3.25%
6.50%
2.00%
4.00%
6.50%
13.00%
4.00%
8.00%
---
Damping losses(*)
8 Ohms
4 Ohms
98
49
123
62
151
75
167
83
32
16
48
24
76
38
100
50
17
9
28
14
47
24
67
33
9
5
15
7
27
13
40
20
4
2
6
3
12
6
18
9
Nov 09