Master Audio
LNC Series. Version 1.0
Feb 10
15
5. APPENDIX
POWER LOSSES(%) AND DAMPING FACTOR, RELATED TO WIRE LENGTH
AND SECTION
(*) Referred to an amplifier with a Damping Factor of 200:1.
Wire sections under
2.50 mm
2
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.
Wire
length
(m)
Section
(mm
2
)
Resistance
(Ohms)
Power losses
8Ohms 4Ohms 2Ohms
Damping losses(*)
8 Ohms 4 Ohms
0.75
0.042
0.53%
1.05%
2.10%
98
49
1.50
0.025
0.31%
0.63%
1.25%
123
62
2.50
0.013
0.16%
0.33%
0.65%
151
75
1
4.00
0.008
0.10%
0.20%
0.40%
167
83
0.75
0.210
2.63%
5.25%
10.5%
32
16
1.50
0.125
1.56%
3.13%
6.25%
48
24
2.50
0.065
0.81%
1.63%
3.25%
76
38
5
4.00
0.040
0.50%
1.00%
2.00%
100
50
0.75
0.420
5.25% 10.50% 21.00%
17
9
1.75
0.250
3.13%
6.25%
12.50%
28
14
2.50
0.130
1.63%
3.25%
6.50%
47
24
10
4.00
0.080
1.00%
2.00%
4.00%
67
33
0.75
0.840
10.50% 21.00% 42.00%
9
5
1.50
0.500
6.25% 12.50% 25.00%
15
7
2.50
0.260
3.25%
6.50%
13.00%
27
13
20
4.00
0.160
2.00%
4.00%
8.00%
40
20
0.75
2.100
26.25% 52.50%
---
4
2
1.50
1.250
15.63% 31.25% 62.50%
6
3
2.50
0.650
8.13% 16.25% 32.50%
12
6
50
4.00
0.400
5.00% 10.00% 20.00%
18
9
