Cable diameter d | 0.798 mm | 0.977 mm | 1.128 mm | 1.382 mm | 1.784 mm | 2.257 mm | 2.764 mm | 3.568 mm |
Cable nominal cross section A | 0.5 mm2 | 0.75 mm2 | 1.0 mm2 | 1.5 mm2 | 2.5 mm2 | 4.0 mm2 | 6.0 mm2 | 10.0 mm2 |
Maximum electrical current | 3 A | 7.6 A | 10.4 A | 13.5 A | 18.3 A | 25 A | 32 A | - |
Always consider, the cross section must be made larger with higher power and higher length of
the cable, but also with lesser impedance. Here is a table to tell the possible power loss.
Gobdokumente 1 0 3 Fraction
Cable length in m | Section in mm2 | Resistance in ohm | Power loss at | Damping factor at | ||
Impedance 8 ohm | Impedance 4 ohm | Impedance 8 ohm | Impedance 4 ohm | |||
1 | 0.75 | 0.042 | 0.53% | 1.05% | 98 | 49 |
1.50 | 0.021 | 0.31% | 0.63% | 123 | 62 | |
2.50 | 0.013 | 0.16% | 0.33% | 151 | 75 | |
4.00 | 0.008 | 0.10% | 0.20% | 167 | 83 | |
2 | 0.75 | 0.084 | 1.06% | 2.10% | 65 | 33 |
1.50 | 0.042 | 0.62% | 1.26% | 85 | 43 | |
2.50 | 0.026 | 0.32% | 0.66% | 113 | 56 | |
4.00 | 0.016 | 0.20% | 0.40% | 133 | 66 | |
5 | 0.75 | 0.210 | 2.63% | 5.25% | 32 | 16 |
1.50 | 0.125 | 1.56% | 3.13% | 48 | 24 | |
2.50 | 0.065 | 0.81% | 1.63% | 76 | 38 | |
4.00 | 0.040 | 0.50% | 1.00% | 100 | 50 | |
10 | 0.75 | 0.420 | 5.25% | 10.50% | 17 | 9 |
1.50 | 0.250 | 3.13% | 6.25% | 28 | 14 | |
2.50 | 0.130 | 1.63% | 3.25% | 47 | 24 | |
4.00 | 0.080 | 1.00% | 2.00% | 67 | 33 | |
20 | 0.75 | 0.840 | 10.50% | 21.00% | 9 | 5 |
1.50 | 0.500 | 6.25% | 12.50% | 15 | 7 | |
2.50 | 0.260 | 3.25% | 6.50% | 27 | 13 | |
4.00 | 0.160 | 2.00% | 4.00% | 40 | 20 |
The damping factor values show, what remains of an accepted damping factor of 200
depending on the cable length, the cross section, and the impedance of the loudspeaker.
Conversion and calculation of cable diameter to AWG
and AWG to cable diameter in mm - American Wire Gauge