Speaker Wire Size
| AWG |
DCR |
5%
Value |
Feet |
Meters |
Max
Amps |
Max
Watts |
| 22 |
0.0153 |
0.40 |
13.07 |
3.99 |
0.92 |
7.11 |
| 20 |
0.0107 |
0.40 |
18.73 |
5.71 |
1.5 |
18.90 |
| 18 |
0.0067 |
0.40 |
29.67 |
9.05 |
2.3 |
44.44 |
| 16 |
0.0040 |
0.40 |
49.75 |
15.17 |
3.7 |
115.00 |
| 14 |
0.0025 |
0.40 |
80.32 |
24.49 |
5.9 |
292.40 |
| 13 |
0.0020 |
0.40 |
98.04 |
29.89 |
7.4 |
459.98 |
| 12 |
0.0017 |
0.40 |
119.05 |
36.30 |
9.3 |
726.52 |
| 11 |
0.0013 |
0.40 |
155.04 |
47.27 |
12 |
1209.60 |
| 10 |
0.0010 |
0.40 |
204.08 |
62.22 |
15 |
1890.00 |
| |
|
|
|
|
|
|
| For
4 ½ Systems |
| AWG |
DCR |
5%
Value |
Feet |
Meters |
Max
Amps |
Max
Watts |
| 22 |
0.0153 |
0.20 |
6.54 |
1.99 |
0.92 |
3.55 |
| 20 |
0.0107 |
0.20 |
9.36 |
2.85 |
1.5 |
9.45 |
| 18 |
0.0067 |
0.20 |
14.84 |
4.52 |
2.3 |
22.22 |
| 16 |
0.0040 |
0.20 |
24.88 |
7.58 |
3.7 |
57.50 |
| 14 |
0.0025 |
0.20 |
40.16 |
12.24 |
5.9 |
146.20 |
| 13 |
0.0020 |
0.20 |
49.02 |
14.95 |
7.4 |
229.99 |
| 12 |
0.0017 |
0.20 |
59.52 |
18.15 |
9.3 |
363.26 |
| 11 |
0.0013 |
0.20 |
77.52 |
23.63 |
12 |
604.80 |
| 10 |
0.0010 |
0.20 |
102.04 |
31.11 |
15 |
945.00 |
Source: Liberty Cable and
Handbook of Electronic Tables and Formulas for American Wire Gauge
he values on this sheet are very conservative and are not established maximum values, this is a recommended distance and power limit based upon the most efficient application of wire and cable products for non-70 volt speaker systems with minimal signal loss and harmonic distortion
The maximum amperage listed is a conservative recommendation that will not result in significant temperature increases with the wires.Ê This is for two-conductor speaker wire only, the amperage total will be reduced for more conductors.Ê Multiply the amperage rating by .80 for 4-6 conductor applications.
last updated 16 June 2006
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